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  Subjects -> MANUFACTURING AND TECHNOLOGY (Total: 297 journals)
    - CERAMICS, GLASS AND POTTERY (26 journals)
    - MACHINERY (33 journals)
    - MANUFACTURING AND TECHNOLOGY (184 journals)
    - METROLOGY AND STANDARDIZATION (4 journals)
    - PACKAGING (15 journals)
    - PAINTS AND PROTECTIVE COATINGS (5 journals)
    - PLASTICS (28 journals)
    - RUBBER (2 journals)

PLASTICS (28 journals)

Showing 1 - 28 of 28 Journals sorted alphabetically
Acta Polymerica     Hybrid Journal   (Followers: 9)
Additives for Polymers     Full-text available via subscription   (Followers: 21)
Advances in Polymer Technology     Hybrid Journal   (Followers: 13)
Cellular Polymers     Full-text available via subscription  
Cirugia Plastica Ibero-Latinoamericana     Open Access  
European Polymer Journal     Hybrid Journal   (Followers: 41)
High Performance Polymers     Hybrid Journal   (Followers: 1)
International Journal of Polymeric Materials     Hybrid Journal   (Followers: 6)
International Polymer Processing     Full-text available via subscription   (Followers: 1)
Journal for Technology of Plasticity     Open Access   (Followers: 2)
Journal of Applied Polymer Science     Hybrid Journal   (Followers: 133)
Journal of Cellular Plastics     Hybrid Journal  
Journal of Elastomers and Plastics     Hybrid Journal   (Followers: 1)
Journal of Inorganic and Organometallic Polymers and Materials     Partially Free   (Followers: 9)
Journal of Plastic Film and Sheeting     Hybrid Journal  
Journal of Polymer Research     Hybrid Journal   (Followers: 6)
Journal of Polymer Science Part C : Polymer Letters     Hybrid Journal   (Followers: 6)
Journal of Polymers and the Environment     Hybrid Journal   (Followers: 1)
Kunststoffe     Full-text available via subscription   (Followers: 2)
Majalah Kulit, Karet, dan Plastik     Open Access  
Plasmas and Polymers     Hybrid Journal  
Plastic and Polymer Technology     Open Access   (Followers: 11)
Plastic and Reconstructive Surgery     Full-text available via subscription   (Followers: 25)
Polymer     Hybrid Journal   (Followers: 155)
Polymer Bulletin     Hybrid Journal   (Followers: 7)
Polymer Engineering & Science     Hybrid Journal   (Followers: 16)
Polymer-Plastics Technology and Engineering     Hybrid Journal   (Followers: 6)
Reinforced Plastics     Full-text available via subscription   (Followers: 16)
Journal Cover Majalah Kulit, Karet, dan Plastik
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  This is an Open Access Journal Open Access journal
   ISSN (Print) 1829-6971 - ISSN (Online) 2460-4461
   Published by Center for Leather, Rubber, and Plastics Homepage  [1 journal]
  • MKKP Vol. 33 No. 1 (2017) Reviewer Acknowledgement

    • Authors: Muhammad Sholeh
      PubDate: 2017-07-03
      DOI: 10.20543/mkkp.v33i1.3084
      Issue No: Vol. 33, No. 1 (2017)
       
  • Peningkatan mutu blanket karet alam melalui proses predrying dan
           penyemprotan asap cair

    • Authors: Afrizal Vachlepi
      Pages: 1 - 10
      Abstract: Most of Indonesian rubber products SIR 20 are made from the material of raw rubber obtained from smallholders. However, the quality of this material is not good enough. Thus, quality improvement has to be carried out by manufacturers. The liquid smoke used during the blanket hanging process can improve the quality of the rubber products SIR 20. This research aimed to determine and study the effects of liquid smoke spraying and blanket-hanging duration on the drying factor, the dry rubber content, technical quality, vulcanization characteristics, and physical properties of vulcanized natural rubber. Treatments consisted of various hanging duration (6, 8, and 10 days, and without hanging) and spraying (with and without spraying of liquid smoke). The results showed that the spraying of liquid smoke on natural rubber blankets could improve the technical quality of the natural rubber, especially the values of Po and PRI. The spraying of liquid smoke could reduce the blanket hanging duration to 6-8 days. The blankets sprayed with liquid smoke had the optimum cure time of around 15 minutes and 19 seconds and the scorch time of around 3 minutes and 22 seconds. These values indicated that the vulcanization characteristics of blankets which were sprayed with liquid smoke were generally better than those of blankets which were not sprayed with liquid smoke.Keywords: liquid smoke, natural rubber, blanket quality, hanging.
      PubDate: 2017-06-01
      DOI: 10.20543/mkkp.v33i1.1702
      Issue No: Vol. 33, No. 1 (2017)
       
  • Efektivitas penggunaan gambir sebagai bahan penyamak nabati sistem C-RFP
           untuk pembuatan kulit jaket dari kulit domba

    • Authors: Sri Sutyasmi
      Pages: 11 - 18
      Abstract: Gambier is obtained from the extraction of leaves and young twigs of Uncaria gambir, a shrub that grows in Indonesia. Gambier contains tannin by 20% to 55% so that can be used as a vegetable tanning material using the C-RFP system (C=Conditioning, R=Rapid, F=Fass (drum), P=Powder). This research aimed to determine the effectiveness of gambier as a vegetable tanning material using the C-RFP system. Pickled leather underwent a tanning process using the C-RFP system with gambier as the tanning material at various percentages, namely by 15%, 20%, and 25%, to be processed as leather for jackets. The variations of oil used to keep the leather supple were 12.5%, 15%, and 17.5%. The tanned leather was then tested in terms of its organoleptic, physical, chemical, and morphological properties. Results of the organoleptic test and most of the results of the physical test showed that leather for jackets which was tanned using a vegetable tanning material met the requirements set out by SNI 4593: 2011 (sheepskin/goatskin leather for jackets). Results of the SEM test indicated that leather for jackets which was tanned using a vegetable tanning material displayed dense and strong skin tissue, and this proves that gambier is very effective for vegetable tanning using the C-RFP system.Keywords: C-RFP, gambier, vegetable tanning, environmentally friendly.
      PubDate: 2017-06-01
      DOI: 10.20543/mkkp.v33i1.1619
      Issue No: Vol. 33, No. 1 (2017)
       
  • The effects of finish type on permeability and organoleptic properties of
           python (Python reticulatus) skin finished leather

    • Authors: Emiliana Kasmudjiastuti, Rihastiwi Setiya Murti
      Pages: 19 - 28
      Abstract: In the leather industry, there are many different types of finish, i.e. two-tone, transparent, semi aniline and opaque/solid color. The composition formulation of each finish type is different so each will impact not only on the performance but also on the properties of the finished leather. The objective of this research was to investigate the effects of finish type (natural, aniline, semi-aniline, and two-tone) on permeability and organoleptic properties of python skin finished leather. This research focused on the finishing process with various finish types. The results showed that the effect of semi-aniline (I,II) finish type on water vapor permeability reduction is the highest when compared with natural (I, II); aniline (I,II) and two-tone finish types. Otherwise, the effect of semi-aniline (I,II) finish type on organoleptic properties is the lowest compared with natural (I, II); aniline (I,II) and two-tone finish types. The aniline I finish type has better organoleptic properties.Keywords: finish type, natural, aniline, semi-aniline, two-tone, python skin.
      PubDate: 2017-05-26
      DOI: 10.20543/mkkp.v33i1.1575
      Issue No: Vol. 33, No. 1 (2017)
       
  • Analisis sifat fisika pemanfaatan pati tandan kosong sawit dan limbah
           plastik LDPE sebagai bahan pembuatan plastik biodegradabel

    • Authors: Tengku Rachmi Hidayani, Elda Pelita, Gusfiyesi Gusfiyesi
      Pages: 29 - 34
      Abstract: This research aimed to overcome the issue of plastic packaging waste that accumulates in nature because synthetic polymers cannot be easily unraveled by bacteria. Biodegradable plastics were produced by mixing waste of plastics of the low density polyethylene (LDPE) with starch of empty palm fruit bunches, modified with the addition of maleic anhydride as a crosslinking agent. To produce biodegradable plastics, different compositions of LDPE waste, starch of empty palm fruit bunch, maleic anhydride, and benzoyl peroxide were used, namely (90: 10: 1: 1), (80: 20: 1: 1), (70: 30: 1: 1), and (60: 40: 1: 1). Research stages consisted of extraction of starch from palm empty fruit bunch (PEFB); preparation of biodegradable plastic powder with the reflux method and xylene solvents; and making of biodegradable plastics using the press molding method. Based on the results of characterization, it was revealed that the optimum condition was generated by biodegradable plastics with the composition of LDPE waste, starch of empty palm bunches, maleic anhydride, and benzoyl peroxide was equal to 60: 40: 1: 1, which generated the tensile strength value of 6.9410 N/m2, the elongation at break of 3.1875%, the the melting point temperature of 103oC, and the decomposition temperature of 384oC. Besides, the thermal gravimetric test generated a residue of 12.6% and results of the analysis on morphological properties suggested that the starch distributed evenly.Keywords: Biodegradable plastics, LDPE waste, LDPE-g-MA, starch, palm empty fruit bunch.
      PubDate: 2017-06-01
      DOI: 10.20543/mkkp.v33i1.2202
      Issue No: Vol. 33, No. 1 (2017)
       
  • Pembuatan seal tabung gas karet alam dengan filler pasir kuarsa sebagai
           pengganti karbon hitam

    • Authors: Suharman Suharman, M. Harun
      Pages: 35 - 42
      Abstract: This research aimed to make natural rubber-based gas cylinder seals with quartz sand as the filler to replace carbon black. The experiments consisted of the use of 10 phr, 20 phr, 30 phr, 40 phr, and 50 phr of quartz sand. The gas cylinder seals produced underwent a test according to the Indonesian National Standard (SNI) 7655:2010. The test generated the following results: the value of hardness ranged from 51±6 to 60±5 Shore A, the value of tensile strength ranged from 67 to 72 kg/cm2, the value of elongation at break ranged from 414 to 457%, the value of the compression set ranged from 25 to 61%, after aging, and ozone resistance with no cracks. Natural rubber-based gas cylinder seals with quartz sand as the filler to replace carbon black met the requirements specified by SNI 7655:2010 in terms of the criteria of hardness, elongation at break, after aging and ozone resistance.Keywords: quartz sand, carbon black, gas cylinder seal. 
      PubDate: 2017-06-01
      DOI: 10.20543/mkkp.v33i1.2123
      Issue No: Vol. 33, No. 1 (2017)
       
  • Pengaruh bahan pengisi serat kaca terhadap sifat fisik dan kristalinitas
           polipaduan PC/ABS

    • Authors: Dwi Wahini Nurhajati, Muhammad Sholeh, Ihda Novia Indrajati, Ike Setyorini
      Pages: 43 - 48
      Abstract: This research aimed to determine the effects of the addition of glass fibers on the physical and crystallinity properties of PC/ABS polyblends. The ratio of PC/ABS used in this research was 75/25, while the addition of glass fibers ranged from 0; 5; 10; to 15 phr (based on the weight of PC/ABS). Polyblends of PC/ABS/glass fibers were prepared in a twin screw extruder. The test results showed that density and tensile strength of PC/ABS polyblends increased with an increase in the glass fiber content. The presence of glass fibers decreased MFI and impact strength of these PC/ABS polyblends. The functional groups were determined by the fourier transform infrared (FTIR) spectrophotometer while crystallinity was examined using X-ray diffractometer (XRD).Keywords: PC/ABS polyblend, glass fiber, physical properties, crystallinity.
      PubDate: 2017-06-01
      DOI: 10.20543/mkkp.v33i1.2770
      Issue No: Vol. 33, No. 1 (2017)
       
  • Peningkatan ketahanan suhu dingin kulit atasan sepatu melalui pengurangan
           daya penyerapan air dan pengaruhnya terhadap sifat fisik dan morfologi

    • Authors: Prayitno Prayitno, Emiliana Kasmudjiastuti
      Pages: 49 - 56
      Abstract: A research has been undertaken to increase the cold resistance of upper leather by decreasing its water absorption ability. Fluorinated acrylic polymer, a water repellent substance, was added at fatliquoring and finishing stages of upper leather with different concentrations levels. Research findings showed that an increase in the water-repellent concentration, i.e. by 5; 7.5; 10; 12.5; and 15%, result in increases in tensile strength, tearing strength, and elongation at break, whereas decreases in water absorption ability. No significant differences for the other physical properties such as water vapor absorption, water vapor permeability, and flexing resistance and they met the standard for shoe leather. Results of scanning electron microscopy indicated an increased thin layer of water repellent on leather fibers as the water-repellent concentration increased. The leather fibers looked smoother, glistened, and thicker. This indicates the penetration of water repellent onto leather fibers.Keywords: water absorption, water repellent, cold resistance, upper leather.
      PubDate: 2017-06-01
      DOI: 10.20543/mkkp.v33i1.1614
      Issue No: Vol. 33, No. 1 (2017)
       
 
 
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