Subjects -> MANUFACTURING AND TECHNOLOGY (Total: 363 journals)
    - CERAMICS, GLASS AND POTTERY (31 journals)
    - MACHINERY (34 journals)
    - MANUFACTURING AND TECHNOLOGY (223 journals)
    - METROLOGY AND STANDARDIZATION (6 journals)
    - PACKAGING (19 journals)
    - PAINTS AND PROTECTIVE COATINGS (4 journals)
    - PLASTICS (42 journals)
    - RUBBER (4 journals)

PLASTICS (42 journals)

Showing 1 - 40 of 40 Journals sorted alphabetically
ACS Applied Polymer Materials     Hybrid Journal   (Followers: 19)
Acta Polymerica     Hybrid Journal   (Followers: 9)
Additives for Polymers     Full-text available via subscription   (Followers: 20)
Advanced Industrial and Engineering Polymer Research     Open Access   (Followers: 5)
Advances in Polymer Technology     Open Access   (Followers: 13)
Chinese Journal of Polymer Science     Hybrid Journal   (Followers: 9)
Cirugia Plastica Ibero-Latinoamericana     Open Access  
Current Applied Polymer Science     Hybrid Journal   (Followers: 2)
European Polymer Journal     Hybrid Journal   (Followers: 43)
High Performance Polymers     Hybrid Journal   (Followers: 1)
International Journal of Biobased Plastics     Open Access   (Followers: 1)
International Journal of Polymeric Materials     Hybrid Journal   (Followers: 7)
International Polymer Processing     Full-text available via subscription   (Followers: 1)
Iranian Journal of Polymer Science and Technology     Open Access   (Followers: 1)
Journal of Applied Polymer Science     Hybrid Journal   (Followers: 152)
Journal of Cellular Plastics     Hybrid Journal   (Followers: 1)
Journal of Elastomers and Plastics     Hybrid Journal  
Journal of Inorganic and Organometallic Polymers and Materials     Hybrid Journal   (Followers: 8)
Journal of Plastic Film and Sheeting     Hybrid Journal   (Followers: 1)
Journal of Polymer Research     Hybrid Journal   (Followers: 7)
Journal of Polymer Science Part C : Polymer Letters     Hybrid Journal   (Followers: 6)
Journal of Polymers and the Environment     Hybrid Journal   (Followers: 1)
Majalah Kulit, Karet, dan Plastik     Open Access  
Microplastics and Nanoplastics     Open Access   (Followers: 1)
Plastic and Polymer Technology     Open Access   (Followers: 41)
Plastic and Reconstructive Surgery     Hybrid Journal   (Followers: 31)
Plastics Engineering     Partially Free   (Followers: 3)
Polymer     Hybrid Journal   (Followers: 101)
Polymer Bulletin     Hybrid Journal   (Followers: 8)
Polymer Engineering & Science     Hybrid Journal   (Followers: 15)
Polymer Science Series B     Hybrid Journal   (Followers: 6)
Polymer Science Series C     Hybrid Journal   (Followers: 4)
Polymer Science Series D     Hybrid Journal   (Followers: 4)
Polymer Science, Series A     Hybrid Journal   (Followers: 4)
Polymer-Plastics Technology and Materials     Hybrid Journal   (Followers: 7)
Polymers and Polymer Composites     Hybrid Journal   (Followers: 3)
Polymers from Renewable Resources     Hybrid Journal   (Followers: 3)
Progress in Rubber, Plastics and Recycling Technology     Hybrid Journal   (Followers: 2)
Reinforced Plastics     Full-text available via subscription   (Followers: 15)
SPE Polymers     Open Access   (Followers: 1)
Similar Journals
Journal Cover
Journal of Polymer Research
Journal Prestige (SJR): 0.403
Citation Impact (citeScore): 1
Number of Followers: 7  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1572-8935 - ISSN (Online) 1022-9760
Published by Springer-Verlag Homepage  [2468 journals]
  • PANI/rGO‚ąíPAM/PVA hydrogels with applications in supercapacitive,
           photoelectric and strain sensing

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      Abstract: Abstract The high integration and multifunctionality in flexible electronic device play an important role in its development. In this study, we developed multifunctional hydrogels integrated with supercapacitive, photoelectric, and strain-sensing capabilities. The hydrogel composite consists of PAM/PVA matrix with polyaniline (PANI) and reduced graphene oxide (rGO) as conductive components. Two different acid dopants, citric acid (CA) and hydrochloric acid (HCl), were employed to investigate their impact on photoelectrochemical capabilities of hydrogels. Both CA-doped and HCl-doped hydrogels exhibited remarkable supercapacitive performance, achieving areal capacitances of 492 mF/cm2 and 538 mF/cm2, respectively. Furthermore, both hydrogels demonstrated photosensitivity towards shorter wavelengths such as ultraviolet (380 nm) and blue (475 nm) light. Lastly, the proposed hydrogels serving as highly sensitive strain sensors was verified through effectively sensing arm bending movements.
      PubDate: 2024-02-22
       
  • Influence of functionalised lignin on strength and antioxidant properties
           of polylactic acid films

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      Abstract: Abstract Currently, it is challenging to make biodegradable polylactic acids (PLA) composite films which possess high strength and toughness. To achieve the same, Lignin is unrivalled reinforcing filler which can be used in the bioplastic because of its high mechanical strength and antioxidant properties. Here, lignin has been in situ polymerized with L-lactic acid to create lignin grafted polylactic acid co-polymers which have been later combined with PLA matrix to prepare composites films with improved properties. Various analysis techniques i.e. C13 NMR, 1H NMR, and FTIR were conducted on lignin grafted lactic acid copolymer which confirmed the presence of ester linkages between lignin and lactic acid. The findings show that a modest quantity of filler can increase crystallinity, while lowering glass transition temperature and cold crystallization temperature. Additionally, the PLA composite film with 12% filler content exhibited 26.4 MPa tensile strength with 17.91% elongation at break and 1.4 GPa Young’s modulus. The films also demonstrated strong antioxidant qualities done through radical scavenging, making them quite viable in packaging applications.
      PubDate: 2024-02-22
       
  • Preparation of hyperbranched polyurethane acrylates and their properties
           in UV curable nano-SiO2 composite coatings for PET optical film

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      Abstract: Abstract Polyethylene terephthalate (PET) films have been widely applied in the display industry. However, there is a problem in effectively protecting and extending the service life. To address this issue, a hyperbranched polyurethane acrylate (HPUA) has been synthesized with poly (hexylene glycol) neopentyl glycol ester (PNA), isophorone diisocyanate (IPDI), hyperbranched polyol Boltorn™H2004 and pentaerythritol triacrylate (PETA). Further, a series of high-performance UV curable coatings have been prepared with HPUA, hollow nano-SiO2 and silane coupling agents, along with other reagents. The structure of HPUA has been characterized by infrared spectroscopy (FT-IR), and the curing process has been monitored kinetically by real-time infrared spectroscopy to study its double-bond conversion ratio. The properties of the cured films have been investigated by thermogravimetric analysis (TGA). The water contact angle, aging and yellowing resistance, hardness, flexibility, abrasion resistance, light transmittance, and adhesion of the cured coatings on PET film have been tested. The results have shown that the addition of hollow nano-SiO2 and silane coupling agents has not only not affect the light transmittance of the coatings but also improved the surface properties and heat resistance. When the silane coupling agent has been γ-Methacryloxypropyltrimethoxysilane (KH-570), the water contact angle of the coating has been 101.8°, excellent resistance to aging and yellowing, and the hardness, flexibility, and abrasion resistance have reached 89.4 HD, 3 mm, and 500 g/350 times, respectively. It was worth mentioning that the cured coating has shown excellent adhesion to PET film with the best overall performance. This work has offered important guidance for the protection of PET films.
      PubDate: 2024-02-22
       
  • A trifunctional active ester for curing DGEBA: synthesis, curing behavior,
           and properties of its cured product

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      Abstract: Abstract A trifunctional active ester curing agent, triacetoxytriphenylmethane (TATPM), which was dissolvable in diglycidyl ether of bisphenol A (DGEBA), was prepared and characterized. Though TATPM/DGEBA mixture was too viscous to flow at room temperature, its viscosity rapidly declined to a very low level when heating above 120 °C, showing great processability. Accelerators 4-dimethylaminopyridine (DMAP), 2-methylimidazole (2MI), and tetrabutylammonium bromide (TBAB) were used to catalyze the reactions between TATPM and DGEBA. DMAP-catalyzed one reached Tpeak and Tendset earlier, and showed higher conversion than 2MI and TBAB-catalyzed one, exhibiting superior accelerating effect. Ea and A of DMAP-catalyzed system were higher than that of 2MI-catalyzed system. Moreover, the properties of cured products depended on accelerator type, and DMAP-catalyzed one had the highest Tg, Td5%, and Td10%, lowest Df, EQUATION and saturated water uptake, making DMAP a better accelerator than 2MI and TBAB. Meanwhile, TATPM cured epoxies showed higher Td, lower Dk and Df than that of phenolic compound THTPM cured epoxies, despite of its lower Tg.
      PubDate: 2024-02-20
       
  • Innovative environment-friendly liquid fertilizer bead from sodium
           alginate coating with IPN membrane derived from natural rubber and cassava
           starch

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      Abstract: Abstract This research aims to prepare liquid fertilizer beads formed with sodium alginate (SA) (SAB) that were coated with interpenetrating polymer network (IPN) hydrogels based on pre-vulcanized natural rubber latex (NR) and cassava starch (St) (IPN NR/St) for controlling the release of the urea solutions. The preparation of SAB at various concentrations of SA and calcium chloride (CaCl2) solutions was investigated. Optimal concentrations were determined to be 1.5% and 5.0 wt% for SA and CaCl2, respectively. Subsequently, the obtained SAB underwent coating with IPN NR/St, utilizing a ratio of 1.0/1.0 between SAB and IPN NR/St, with two layers of coating. The resulting coated alginate beads (CSAB) exhibited the ability to slow down the release of urea solution, contributing to enhanced growth in Thai eggplants. Beyond efficient urea release control, CSAB presents advantages in mitigating environmental issues associated with traditional fertilizers. The study proposes CSAB as an innovative technique for the coating and controlled liquid release of organic or biofertilizers. The potential benefits extend to promoting sustainable agriculture practices while addressing environmental concerns, marking CSAB as a promising solution for organic and biofertilizer applications.
      PubDate: 2024-02-20
       
  • Strong, self-healing and flame-retardant elastomer composite based on
           epoxidized natural rubber, polylactic acid, chitosan and guanidine
           phosphate

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      Abstract: Abstract With the rapid development of society, polymer materials are widely used in automotive, construction, and electronic components due to their excellent properties such as easy processing, cheap price, and corrosion resistance. However, most polymers, such as rubber and leather, suffer from poor mechanical properties, susceptibility to micro cracking and flammability. In this paper, an epoxidized natural rubber (ENR)/polylactic acid (PLA)/chitosan (CS)/guanidine phosphate (GP) composites with certain self-healing and flame-retardant properties are successfully prepared. The network structure is constructed by forming thermoplastic elastomers (TVPs) through ENR and PLA, and the amino groups on CS and GP can form hydrogen bonds with ENR, which improves the mechanical properties of ENR/PLA composites and gives the ENR/PLA/CS/GP composites excellent self-healing properties. Meanwhile, CS and GP can also form intumescent flame retardants to improve the flame-retardant properties of ENR/PLA composites. The results show that the mechanical strength of ENR/ PLA /CS/GP composites can reach 4.2 MPa when the addition of CS and GP is 2phr and 4phr, respectively. The self-healing effectiveness of the ENR/PLA/CS/GP composite reaches up to 78% after 3 h at 130 °C. The stress intensity of the original ENR/PLA composite is 3.4Mpa, and that of healing ENR/PLA/CS/GP composite is 3.3Mpa. Meanwhile, the peak heat release rate (HRR) of ENR/PLA could decease 35.8% owing to 2phr CS and 4phr GP.
      PubDate: 2024-02-19
       
  • Fabrication of multi-walled carbon nanotube/polycaprolactone scaffolds for
           possible application in tissue engineering

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      Abstract: Abstract Flexible scaffolds made of polycaprolactone (PCL), and multi-walled carbon nanotubes (MWCNTs) were created and chemically verified through RAMAN. The most suitable coupling percentages for PCL were 1%, 3%, and 5% MWCNT. The scaffolds were very stable with high hardness values (10–12 GPa). The PCL/MWCNT 5% scaffold was the most flexible and least resistant, with adequate porosity, pore size, and interconnectivity for cell anchoring. Moreover, the scaffold exhibited low cytotoxicity with a cell viability of 90%. These flexible PCL/MWCNT scaffolds were developed to support tissue engineering by providing a mechanical response with flexibility and elasticity like the surrounding tissue.
      PubDate: 2024-02-17
       
  • Study on viscoelasticity and damping properties of OSA/PAAM hydrogel

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      Abstract: Abstract The problems of vibration and noise have seriously affected people’s production and life. Hydrogel can be used as damping material because of its good viscoelasticity, but the current damping material is difficult to meet the needs of actual production and life because of the lack of wide damping temperature and frequency range and high loss factor. In this work, ammonium persulfate was used as both initiator and oxidant to form a mixed double network hydrogel of polyacrylamide and oxidized sodium alginate. The double network hydrogel prepared by this method has good adhesion and mechanical properties. In addition, due to the adjustable viscoelasticity of the hydrogel, the hydrogel shows excellent damping properties. When the concentration of MBA is 0.02%, it can reach the temperature range of 0-125 ℃, and the damping factor is more than 0.3. The visualization experiment proves the practical application effect of the hydrogel, so it is expected to be used as a damping material in damping, noise reduction and other fields in the future.
      PubDate: 2024-02-15
       
  • Enhancing deblocking efficiency and curing reaction of phenol-blocked
           polymeric methylenediphenyldiisocyanate for advanced epoxy-polyurethane
           film formulation

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      Abstract: Abstract Novel phenol blocked polymeric methylene diphenyldiisocyanate (pMDI) derivatives were synthesized and characterized using FTIR, 1H NMR, and 13C NMR spectroscopy. The deblocking temperatures of the blocked isocyanates were determined using CO2 evolution method, DSC, and TGA spectroscopy. A cure reaction was performed between the blocked isocyanates and poly(Terathane-2000) to establish the structure–property relationship. Unsubstituted phenol-based blocked isocyanates exhibited superior deblocking temperatures and gel times compared to those with electron-donating substituted phenols. Intramolecular hydrogen bonding in blocking agents such as 4-hydroxybenzaldehyde, 4-hydroxyacetophenone, 4-hydroxybenzoic acid, and methyl 4-hydroxybenzoate resulted in unexpectedly high deblocking temperatures. Conversely, electron-withdrawing and steric effects led to low deblocking temperatures and gel times for blocked isocyanates BI-13 and BI-15. The solubility behavior of the blocked isocyanates was studied using various polyols (PEG-400, PEG-4000, and PEG-6000). Epoxy-polyurethane films were prepared using the blocked isocyanates, and their structures were confirmed using ATR spectroscopy. The thermal and mechanical properties of these films were investigated, including shoreA hardness, tensile strength, and flexural strength.
      PubDate: 2024-02-14
       
  • Cross-linking network topology and durability in silicone rubber sealants
           for PEMFCs: the impact of curing systems and nanosilica interactions

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      Abstract: Abstract This study investigates the durability of silicone rubber compounds employed as sealants in polyelectrolyte membrane fuel cells (PEMFCs), focusing on their cross-linking network topology. Compounds are formulated with varying curing systems, including hydrosilylation and peroxide curing, and different filler content, sizes, and surface chemistries. The findings indicate that compounds cured by hydrosilylation exhibit enhanced hardness and storage modulus, along with reduced compression set and damp factor, in comparison to those cured by peroxide. These superior mechanical properties are attributed to a homogeneous cross-linking network topology with fewer "in-elastic chains." Furthermore, strong interactions between silicone rubber and nanosilica contribute to network topology by establishing physical cross-links. Remarkably, these interactions intensify during chemical aging in a simulated PEMFC environment, resulting in increased hardness and reduced compression set. In contrast, compounds containing hydrophobic surface-modified nanosilica experience severe mechanical deterioration due to higher chain degradation during chemical aging. In summary, this study highlights the critical role of cross-linking network topology and interactions with nanosilica in determining the durability of silicone rubber compounds for PEMFC applications.
      PubDate: 2024-02-12
       
  • Synthesis, characterization and evaluation of pegylated-citric acid based
           dendrimers as drug delivery agents

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      Abstract: Abstract In the present study, four different types of fourth-generation pegylated citric acid based dendrimers namely PE/TMP-MC-PEG-CA-PEG and PE/TMP-MS-PEG-CA-PEG were synthesized. The dendrimers were further conjugated with cefotaxime (CFTX) sodium drug. The structures of these dendrimers and drug-dendrimer conjugates were confirmed by using 1H-NMR, 13C-NMR, and FTIR spectroscopy. The confirmation of particle size, surface topography and structure of drug-dendrimer conjugates was done using Zeta sizer, AFM, and HR-TEM techniques. Cytotoxicity investigation revealed that the CFTX-encapsulated dendrimers are safe against normal epithelial cells and showed 20–22% anticancer activity against A549 Lung carcinoma cells; besides that, the synthesized dendrimers and drug-dendrimer conjugates also showed 15–28% and 2–3% hemolytic toxicity, respectively, against red blood cells (RBC). The antibacterial activity of all synthesized third and fourth generation drug-dendrimer conjugates were investigated on Gram-positive and Gram-negative bacteria. The results show that drug conjugate with third generation dendrimers depicted a greater effective zone of inhibition (ZOI) as compared to fourth generation drug-dendrimer conjugates against these pathogenic bacteria.
      PubDate: 2024-02-12
       
  • Tuning the properties of polycaprolactone-based fibers by using
           polyethylene oxide / polycaprolactone block copolymers

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      Abstract: Abstract Biocompatible polymers bearing hydrolyzable groups such as polyesters are a source of raw materials to prepare common and specific materials, due to their degradability properties under mild conditions; for instance, poly(ε-caprolactone) (PCL) is a polymer broadly used in electrospinning to produce fibrous and degradable materials. In this work, we explored the synthesis, characterization, and conditions to prepare fibrous materials made of PCL homopolymers showing different degrees of polymerization and PCL-PEO block copolymers possessing different molecular-weight, which have been synthesized by ring-opening polymerization (ROP). The obtained polymers were characterized by FT-IR, 1H-NMR, and GPC. The synthesized polymers were used to prepare fibrous materials by the electrospinning method, which were characterized by SEM, wettability, tensile test, and DSC. We found that low molecular-weight polymers cannot produce tangible materials; however, the addition of block copolymers containing the hydrophilic PEO unit produced porous materials where the fiber diameter decreased, also turning hydrophilic as the PEO chain length increased in the block copolymer. Thus, these materials can be projected towards specific applications, such as their use in tissue engineering. The role of PCL-PEO block copolymers as additives in the fabrication of PCL-based materials concerning structuration and control of fiber size, hydrophilia, and mechanical properties is discussed.
      PubDate: 2024-02-12
       
  • Preparation and properties of cellulose nanofiber/Ti3C2Tx/Poly(lactic
           acid) composite film

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      Abstract: Abstract Poly(lactic acid) (PLA), a new renewable and environmentally friendly polymer material, has gained significant attention in recent years. However, its application is limited by challenges such as poor thermal stability, brittleness and limited impact resistance. At present, PLA is predominantly modified through blending, filling and copolymerization methods. Although the above modification methods can effectively improve the properties of PLA, there are still some deficiencies in some places. In this work, CNF/Ti3C2Tx/PLA composites were prepared by impregnation with poly(lactic acid) (PLA) and cellulose nanofibers (CNF), a new two-dimensional material Ti3C2Tx, and a complete CNF membrane as a support framework. The effects of CNF and Ti3C2Tx incorporation on the thermal, mechanical and electromagnetic shielding properties of PLA were investigated using various characterization techniques including FT-IR, XRD, DSC, TGA, tensile testing and electromagnetic test characterization. The results showed that CNF can improve the thermal stability and crystallinity of PLA, where the crystallinity can reach 23.5%. CNF synergized with Ti3C2Tx to improve the mechanical properties of PLA, and the tensile strength was increased by 64.29%. Furthermore, Ti3C2Tx imparted electromagnetic shielding properties to PLA composites. The findings expand the application of PLA composites in the field of electromagnetic shielding.
      PubDate: 2024-02-11
       
  • Preparation of Thermo-sensitive oxidizable N-vinylcaprolactam-based
           terpolymers and their self-assembling property

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      Abstract: Abstract Poly(N-vinylcaprolactam-co-hydroxyethyl acrylate-co-phenyl vinyl sulfide) (poly(VC-co-HEA-co-PVS)) and poly(N-vinylcaprolactam-co-N-vinylpyrrolidone-co-phenyl vinyl sulfide) (poly(VC-co-VP-co-PVS)) were synthesized as thermos-sensitive oxidizable terpolymers. The copolymerization was confirmed by the 1H-NMR and FT-IR spectroscopy. VC homopolymer exhibited its lower critical solution temperature (LCST) around 32 ℃. The copolymerization of HEA with VC and of VP with VC decreased and increased the LCST of VC homopolymer, respectively. The inclusion of PVS (an oxidizable monomer) in the copolymers decreased the LCST. The PVS of the copolymers could be oxidized by H2O2, solution (0.1%), evidenced by 1H-NMR spectroscopy. Upon the oxidation, the LCST of poly(VC-co-PVS) and poly(VC-co-HEA-co-PVS) increased markedly possibly due to an increase in the hydrophilicity of PVS. However, the LCST of poly(VC-co-VP-co-PVS) was not markedly affected by the oxidation. The interface activity of poly(VC-co-PVS) and poly(VC-co-HEA-co-PVS) slightly decreased but that of poly(VC-co-VP-co-PVS) markedly increased by the oxidation. The critical micelle concentration of the copolymers was determined by a fluorescence method, and it was 0.087 to 0.105 mg/mL. The micelles of the copolymers were found as circular objects on a transmission electron microscope. The mean hydrodynamic diameters of micelles were 107.4 to 471.6 nm, depending on the polymer composition. The PVS-containing copolymers formed larger micelles than VC homopolymer, possibly because the monomer could enhance an intermolecular hydrophobic interaction due to its phenyl group.
      PubDate: 2024-02-07
       
  • Natural multi-function additive for linear low-density polyethylene:
           Scutellarin baicalensis extractive

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      Abstract: Abstract Scutellaria baicalensis (SBC) richly possess active ingredients to satisfy the conditions for functional applications. Herein, the active components of SBC are extracted and introduced into linear low-density polyethylene (LLDPE) to perform as functional additives. The thermal oxygen stability, processing stability, ultraviolet (UV) stability, flame retardancy and mechanical properties are comprehensively investigated. Compared with pure LLDPE, the oxidation induction time (OIT) of LLDPE incorporating SBC extractive (SBE) increased ca. 24 times. The combination of SBE and antioxidant 626 produce more superior antioxidant capacity (OIT of 99.7 min is achieved), revealing an outstanding synergistic effect. After UV irradiation, the carbonyl index variation of the LLDPE adding SBE is less than 50% of that of pure LLDPE. The TGA test showed that SBE was involved in the free radical elimination process. Moreover, the horizontal burning time increases by 37 s with the introduction of both SBE and antioxidant 626. Those results adequately manifest that SBE is a natural, high-performance multi-function additive for LLDPE. This study validly expands the multi-functional application of natural substances into polyolefins, which is a great benefit to the green development of polymer-based composites.
      PubDate: 2024-02-05
       
  • Effect of the solid content of spinning solutions on the structure
           properties of large-diameter polyvinyl alcohol fiber

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      Abstract: Abstract Large-diameter polyvinyl alcohol (PVA) fiber has a broad application prospect in the field of reinforcing geomorphic building materials owing to its large diameter and excellent mechanical properties. In this work, PVA2499 polymer was used as the raw material, DMSO/H2O as the hybrid solvent, and the staged heating approach was adopted to obtain high solid content of spinning solutions, and then a series of large-diameter medium-strength PVA fibers with different solid contents of spinning solutions (SCS) were prepared by dry-wet spinning, and the Fourier transform infrared spectroscopy (FTIR), scan electron microscope (SEM), differential scanning calorimetry (DSC), thermal analysis (TGA), X-ray diffractometer (XRD) and electronic universal testing machine were performed to explore the effect of the SCS on the structure and performance of PVA fiber. The results displayed that with the increase of the SCS, the -OH stretching vibration absorption peak of PVA fiber moved from 3276 cm−1 to 3262 cm−1; The tensile strength, initial modulus, the crystallization and orientation of PVA fibers all increased first and then decreased. Especially, when the SCS was 23.5wt%, the diameter of the PVA fiber was 110.6 ± 6.0 μm (124.8 ± 6.2 dtex), the tensile strength was 7.0 ± 0.3 cN/dtex, the initial modulus was 106.2 ± 10.3 cN/dtex, the crystallization and the orientation were 49.6% and 96.8%, respectively.
      PubDate: 2024-02-05
       
  • Simultaneous preparation and reinforcement of organic 2D clay
           layers/cis-1,4-polyisoprene composite latex and its high-performance films
           

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      Abstract: Abstract Cis-1,4-polyisoprene latex (IRL) is the best alternative to natural rubber latex (NRL) because it is free from proteins and can avoid allergic reactions in the human body. Poor mechanical properties of IRL film are a major obstacle to replacing NRL. To address this issue, a novel strategy was developed by a simple one-pot method to prepare a composite latex introducing hexadecyltrimethylammonium bromide (CTAB) modified sodium montmorillonite (org-Mnt) into the IRL preparation process. The microstructures and morphology of the resulting org-Mnt were characterized by Fourier Transform Infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscope (SEM), and Energy Dispersive Spectrometer (EDS). In addition, the dispersion state of the org-Mnt in the composite latex and the morphology of the composite films were determined by transmission electron microscopy (TEM) and SEM. The properties of the composite latex were investigated. Crosslink density, thermogravimetric analysis (TGA), mechanical properties, and thermal oxygen aging properties of the composite latex films were also studied. Finally, the mechanism of org-Mnt reinforcement of IRL was described comprehensively. The results showed that the org-Mnt/IRL (1phr and 2phr) composite latexes had a stable state, excellent film-formation performance, and excellent mechanical properties. Compared with pure IRL films, the tensile strength of org-Mnt/IRL (2phr) composite films increased by 74%, and after thermal oxygen aging, property change rates of the tensile strength and elongation at break increased by 37.2% and 32.1%, respectively, which exceeded those of NRL. The current research provides an effective method for preparing high-performance composite films suitable for high-end medical applications.
      PubDate: 2024-02-03
       
  • Insight of super-capacitive properties of flexible gel polymer electrolyte
           containing butyl imidazole ionic liquids with different anions based on
           PVDF-HFP

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      Abstract: Abstract Supercapacitors based on ionic liquid gel polymer electrolytes (GPEs) have attracted considerable attention as a new energy storage device due to their good specific capacitance, good cycling capacity and stability. In this work, flexible gel polymer electrolyte (GPE) films were prepared and applied using three butyl imidazole ionic liquids with different anions as additives based on polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP). The structure and the mechanical properties of the GPE films and the electrical properties of the assembled symmetrical supercapacitors have been characterized. In particular, the structure–activity relationship between the structure and properties of the gel electrolyte was revealed by combining calculations with experiments. In particular, the structure–activity relationship between the structure and properties of the GPE was revealed through the combination of calculation and experiment. The results show that the electronegativity of the anions plays an important role in improving the stability and electrochemical properties of the gel system. This work is useful to further verify the influence of the anionic component of ionic liquids on the physical and chemical properties of gel electrolytes and to prepare more excellent solid electrolytes for supercapacitors.
      PubDate: 2024-02-03
       
  • A simple strategy for synthesis of side-chain sulfonated poly(arylene
           ether ketone sulfone) constructing hydrophilic/ hydrophobic phase
           separation structure

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      Abstract: Abstract A series of poly(aryl ether ketone sulfone) polymers (C-PAEKS-DBS) were synthesized from 4-carboxyphenyl hydroquinone, allyl bisphenol S, and 4,4-difluorobenzophenone by nucleophilic polycondensation. And further a series of side chain sulfonated poly(aryl ether ketone sulfone) proton exchange membranes (CPDA-x) were prepared by simply introducing hydrophilic long alkyl side chains (AMPS) into the polymers by means of double bond cross-linking. The structure of the prepared CPDA-x were characterized by FT-IR, 1H NMR and SEM. This series of composite membranes showed excellent dimensional stability which including moderate water absorption (ranging from 27.91% to 33.33% at 80 °C) and low swelling ratio (ranging from 10.26% to 16.67% at 80 °C). In addition, the prepared films also exhibited high oxidative stability and mechanical property. This simple strategy for the producing of proton exchange membranes (PEMs) has certain potential and may be applied to the producing of fuel cell membranes with hydrophilic and hydrophobic phase separation structures.
      PubDate: 2024-02-02
       
  • Investigation of the polymer material perforation time: comparison between
           two fiber laser wavelengths

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      Abstract: Abstract This study investigated the perforation time of polyamide 6.6 using fiber lasers at two different wavelengths: 1070 and 1943 nm. The novelty of this research lies in the comparison of perforation times at equivalent laser irradiances on the polymer sample with two different colors of polyamide 6.6: natural and black. The results revealed that, at comparable irradiance levels and beam diameters, the 1943 nm laser source perforated the polyamide 6.6 sample faster than the 1070 nm laser source. The difference in perforation time was found to be significantly higher for natural-colored polyamide 6.6 compared to black-colored polyamide 6.6. These findings suggest that, for material processing of polyamide 6.6, especially in terms of perforation, the use of 2 μm laser sources should be privileged over 1 μm laser sources.
      PubDate: 2024-02-02
       
 
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  Subjects -> MANUFACTURING AND TECHNOLOGY (Total: 363 journals)
    - CERAMICS, GLASS AND POTTERY (31 journals)
    - MACHINERY (34 journals)
    - MANUFACTURING AND TECHNOLOGY (223 journals)
    - METROLOGY AND STANDARDIZATION (6 journals)
    - PACKAGING (19 journals)
    - PAINTS AND PROTECTIVE COATINGS (4 journals)
    - PLASTICS (42 journals)
    - RUBBER (4 journals)

PLASTICS (42 journals)

Showing 1 - 40 of 40 Journals sorted alphabetically
ACS Applied Polymer Materials     Hybrid Journal   (Followers: 19)
Acta Polymerica     Hybrid Journal   (Followers: 9)
Additives for Polymers     Full-text available via subscription   (Followers: 20)
Advanced Industrial and Engineering Polymer Research     Open Access   (Followers: 5)
Advances in Polymer Technology     Open Access   (Followers: 13)
Chinese Journal of Polymer Science     Hybrid Journal   (Followers: 9)
Cirugia Plastica Ibero-Latinoamericana     Open Access  
Current Applied Polymer Science     Hybrid Journal   (Followers: 2)
European Polymer Journal     Hybrid Journal   (Followers: 43)
High Performance Polymers     Hybrid Journal   (Followers: 1)
International Journal of Biobased Plastics     Open Access   (Followers: 1)
International Journal of Polymeric Materials     Hybrid Journal   (Followers: 7)
International Polymer Processing     Full-text available via subscription   (Followers: 1)
Iranian Journal of Polymer Science and Technology     Open Access   (Followers: 1)
Journal of Applied Polymer Science     Hybrid Journal   (Followers: 152)
Journal of Cellular Plastics     Hybrid Journal   (Followers: 1)
Journal of Elastomers and Plastics     Hybrid Journal  
Journal of Inorganic and Organometallic Polymers and Materials     Hybrid Journal   (Followers: 8)
Journal of Plastic Film and Sheeting     Hybrid Journal   (Followers: 1)
Journal of Polymer Research     Hybrid Journal   (Followers: 7)
Journal of Polymer Science Part C : Polymer Letters     Hybrid Journal   (Followers: 6)
Journal of Polymers and the Environment     Hybrid Journal   (Followers: 1)
Majalah Kulit, Karet, dan Plastik     Open Access  
Microplastics and Nanoplastics     Open Access   (Followers: 1)
Plastic and Polymer Technology     Open Access   (Followers: 41)
Plastic and Reconstructive Surgery     Hybrid Journal   (Followers: 31)
Plastics Engineering     Partially Free   (Followers: 3)
Polymer     Hybrid Journal   (Followers: 101)
Polymer Bulletin     Hybrid Journal   (Followers: 8)
Polymer Engineering & Science     Hybrid Journal   (Followers: 15)
Polymer Science Series B     Hybrid Journal   (Followers: 6)
Polymer Science Series C     Hybrid Journal   (Followers: 4)
Polymer Science Series D     Hybrid Journal   (Followers: 4)
Polymer Science, Series A     Hybrid Journal   (Followers: 4)
Polymer-Plastics Technology and Materials     Hybrid Journal   (Followers: 7)
Polymers and Polymer Composites     Hybrid Journal   (Followers: 3)
Polymers from Renewable Resources     Hybrid Journal   (Followers: 3)
Progress in Rubber, Plastics and Recycling Technology     Hybrid Journal   (Followers: 2)
Reinforced Plastics     Full-text available via subscription   (Followers: 15)
SPE Polymers     Open Access   (Followers: 1)
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