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ผลงานตีพิมพ์ในวารสารวิชาการCrosslinked Natural Rubber and Styrene Butadiene Rubber Blends/Carbon Black Composites for Self-healable and Energy-saved Applicationsผู้แต่ง: Julbust, A., Buaksuntear, K.,  Dr.Supitta Suethao, Lecturer , Kohl, P., Li, Y., Dr.Wirasak Smitthipong, Associate Professor , วารสาร: 
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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Influence of Thermal and Oil Aging on Weldline Strength of NR/EPDM and NR/NBR Blends) ผู้เขียน:สมเจตน์ พัชรพันธ์, วัชรพงษ์ ชูแก้ว, Tanawat Tungkeunkunt สื่อสิ่งพิมพ์:pdf AbstractWeldline is one of the typical molding defects and appears at the meeting points of multiple melt flows. The presence of weldlines in rubber products is regarded as one of the most undesirable phenomena, since it may result in poor mechanical properties as well as surface appearances. Compression moldings of large or complicated products are usually prepared by multiple charges, which produce weldlines once the melt fronts are joined by impingement flow. In the present study, ethylene propylene diene monomer and acrylonitrile butadiene rubber were blended into natural rubber (NR) in order to enhance the aging properties with respect to the heat, oil and ultraviolet resistances of an NR specimen containing a weldline. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effect of Bulk and Surface Properties on Adhesion of Rubbers) ผู้เขียน:ดร.วีรศักดิ์ สมิทธิพงศ์, รองศาสตราจารย์, Michel Nardin, Jacques Schultz สื่อสิ่งพิมพ์:pdf AbstractThe objective of this study is to investigate the effect of bulk and surface properties of rubbers on both their adhesive properties as rubber/glass contact and their self-adhesive properties as rubber/ rubber contact. A natural rubber (NR) was prepared from Hevea latex. Blends of immiscible rubbers, i.e. synthetic polyisoprene rubber (IR) and hydrogenated acrylonitrile butadiene rubber (HNBR) were prepared by means of an internal mixer. All rubbers were crosslinked by electron beam irradiation at different doses. Two experimental devices are specially devoted to measure the level of adhesion and self-adhesion. First, by impact of a pendulum at very short contact times in milliseconds and second, by contact of a probe for longer contact times in hours. It appears that adhesion and self-adhesion of all the rubbers increase with contact time. Molecular dynamic of the interdiffusion of macromolecular chains is particularly analyzed in the case of crosslinked rubbers. Moreover, the adhesion energy concerning rubber blends of IR and HNBR increases gradually with IR content for a given contact time. |
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