硅烷偶联剂对废EMC粉/PVC复合材料性能的影响

China Plastics Industry(2010)

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Abstract
采用硅烷偶联剂KH-550对废环氧模塑料粉(废EMC粉)进行表面改性并制备了相应的改性废EMC粉/PVC复合材料,分析了废EMC粉的组成和性质以及KH-550的偶联机理,研究了偶联剂用量对复合材料力学性能和加工性能的影响,并用扫描电镜(SEM)观察了复合材料断面形貌.结果表明,KH-550质量分数为1.2%时改性效果较佳,拉伸强度、冲击强度和弯曲强度分别比未改性时提高了58.2%、86.0%和43.7%,扫描电镜和流变性能测试结果均表明,硅烷偶联剂KH-550的加入大大改善了废EMC粉和PVC之间的相容性,提高了界面结合强度.
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Key words
Interface,Surface Modification,Waste Epoxy Molding Compound Powder,PVC
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