精细废轮胎胶粉增韧PVC复合材料应用研究  

STUDY ON TOUGHENING PVC COMPOSITES WITH WASTE TIRE RUBBER FINE POWDER

作　　者：金波[1] 周翠微[2] 陈必凤[1] 方江邻[2] 

机构地区：[1]南京大学化学化工学院,210093 [2]南京大学现代分析中心,210093

出　　处：《现代塑料加工应用》2004年第6期18-20,共3页Modern Plastics Processing and Applications

摘　　要：采用新方法生产的废轮胎胶粉 (粒径 12 0～ 180 μm)作为增韧材料填充到聚氯乙烯 (PVC)中 ,以提高PVC材料的抗冲击性能。结果表明 ,较细颗粒的胶粉填充有利于提高复合材料的冲击强度 ,细胶粉填充改性的PVC材料其冲击强度可达 60kJ/m2 以上 ,为未填充胶粉的对比样的 2倍 ,拉伸强度仍保持在对比样的 65 %以上。利用扫描电镜 ,对复合材料中橡胶颗粒的填充形貌进行分析 ,结果发现宏观数百微米以上尺寸的橡胶颗粒在PVC基体中进一步分散成微米级细颗粒 。The waste tire rubber fine powder prepared by new method was used to produce toughening PVC composite, and the impact property of the composite was improved. The impact strength of the PVC composite filled with small size (120～180 μm) waste tire rubber powder could be high to be more than 60 kJ/m 2 , which was the double impact strength of the original PVC material while the tensile strength of the PVC composite was affected less. SEM analysis showed that the large size rubber particles (over one hundred micrometers) could be further dispersed to be micrometer size after being blended to PVC composite to improve its impact property.

关 键 词：废轮胎胶粉 增韧 材料填充 冲击强度 橡胶颗粒 复合材料 抗冲击性能 分散 粒径 基体 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]