Effects of dynamic vulcanization on the physical, mechanical, and morphological properties of high-density polyethylene/(natural rubber)/(thermoplastic tapioca starch) blends

被引：8
|
作者：
Wahab, Mohamad Kahar Abdul [1 ]
Ismail, Hanafi [1 ]
Othman, Nadras [1 ]
机构：
[1] Univ Sains Malaysia, Polymer Engn Div, Sch Mat & Mineral Resources Engn, Perai 14300, Penang, Malaysia
来源：
JOURNAL OF VINYL & ADDITIVE TECHNOLOGY | 2012年 / 18卷 / 03期
关键词：
THERMOPLASTIC STARCH; POLYPROPYLENE/NATURAL RUBBER; BIODEGRADATION; ELASTOMERS; RATIO;
D O I：
10.1002/vnl.20311
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Blending of high density polyethylene (HDPE), natural rubber (NR), and thermoplastic tapioca starch (TPS) have been studied. Two series of samples having 530 wt% of TPS were prepared: (a) unvulcanized blends (control) and (b) dynamically vulcanized HDPE/NR/TPS blends. The composition of the HDPE/NR was constant and fixed at a blend ratio of 70/30. Morphology studies by SEM showed that the TPS particles were homogeneously dispersed and well-embedded in vulcanized HDPE/NR matrix. The SEM micrographs showed agreement with the tensile strength and elongation at break values. Tensile strength improved significanly when the HDPE/NR/TPS blends were vulcanized by using sulfur curative system. The enhancement in tensile properties is attributed to the crosslinking reaction within the NR phase. J. VINYL ADDIT. TECHNOL., 18:192197, 2012. (c) 2012 Society of Plastics Engineers
引用
收藏
页码：192 / 197
页数：6
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