| PP／废旧橡胶／SBS复合材料的制备和力学性能研究 |
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| 引用本文： | 陈珍明,陈晓,卢灿辉.PP／废旧橡胶／SBS复合材料的制备和力学性能研究[J].中国塑料,2004,18(10):79-82. |
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| 作者姓名： | 陈珍明 陈晓 卢灿辉 |
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| 作者单位： | 福建师范大学化学与材料学院，福建师范大学化学与材料学院，福建师范大学化学与材料学院 福建福州350007，福建福州350007，福建福州350007，四川大学高分子研究所高分子材料工程国家重点实验室，四川成都610065 |
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| 基金项目： | 国家高技术研究发展计划 ( 863计划 )资助课题 ( 2 0 0 3AA3 2 2 0 80 )，国家自然科学基金资助项目 ( 5 0 2 3 3 0 10 ) |
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| 摘 要： | 通过磨盘型力化学反应器制备PP/废旧橡胶(WTR)复合粉体，然后与SKS共混制备PP/WTR/SBS复合材料。研究了材料的力学性能、微观结构和共混物的加工性质。结果表明：当SBS添加量在20％～25％时，PP/WTR/SBS复合材料的力学性能较PP/WTR有了很大的提高，当SBS用量为25％时，断裂伸长率提高了365％，冲击强度提高了73．2％，而体系的拉伸强度基本不变。复合材料冲击断面的形貌和复合体系流变性能研究结果表明：磨盘碾磨可有效改善各组分间的混合性能，提高相容性并有效改善材料的加工性能。
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| 关 键 词： | 聚丙烯 废旧橡胶 苯乙烯-T二烯-苯乙烯共聚物 碾磨 复合材料 |
Study on the Preparation and Mechanical Properties of Polypropylene/Waste Tire Rubber/SBS Blends |
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| Abstract: | Composite powder of polypropylene (PP) and waste tire rubber (WTR) was first prepared using a pan-mill pulverizing equipment, which was further blended with styrene-butadiene-styrene triblock copolymer (SBS) to generate PP/WTR/SBS blends. Mechanical properties, microstructure and processing properties of the blends were investigated. The results showed that the mechanical properties of PP/WTR blends were greatly improved by introducing SBS. When the content of SBS was 25 wt%, the Izod notched impact strength and elongation at break were increased by 73.2 % and 365 %, respectively, with little decrease in the tensile strength. SEM observation of the fractured surfaces indicated a fine dispersion of the components. The rheological measurements showed the PP/WTR/SBS blends possessed a good processability. |
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| Keywords: | polypropylene waste tire rubber styrene-butadiene-styrene copolymer pan-milling composite |
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