FKM/PTFE/炭黑复合材料的性能研究

PTFE

FKM／PTFE／炭黑复合材料的性能研究
Properties of FKM/PTFE/carbon black composites

作　　者：李恩军 张勇 任文坛 王仕峰

LI En-jun ,ZHANG Yong ,REN Wen-tan ,WANG Shi-feng  （Shanghai Jiaotong University,Shanghai 200240,China）

机构地区：上海交通大学化学化工学院,上海200240

出　　处：《橡胶工业》 CAS 2009年第56卷第1期 20-24页,共5页

China Rubber Industry

摘　　要：在氟橡胶（FKM）／炭黑共混体系中加入聚四氟乙烯（PTFE）微粉，制备FKM／PTFE／炭黑复合材料，并对其性能进行研究。结果表明，采用PTFE微粉部分替代炭黑，硫化胶的拉伸强度、拉断伸长率及撕裂强度均明显增大，耐磨性能提高，压缩永久变形有所减小，脆性温度大大降低，但低温回弹性变差。FKM／PTFE／炭黑复合材料的热稳定性降低，在452℃出现FKM热质量损失峰后，在551℃又出现了PTFE热质量损失峰。

The FKM/PTFE/carbon black composites were prepared by adding PTFE powder into FKM/carbon black composites, and their properties were investigated. The results showed that, by partly replacing carbon black with PTFE, the tensile strength, elongation at break and tear strength of FKM/PTFE/carbon black composites improved obviously,the abrasion resistance increased, the compression set decreased and the brittle point reduced, but the low temperature resilience became poor. The thermal stability of FKM/PTFE/carbon black composites decreased, the thermal weight loss peak of FKM occured at 452 ℃,and that of PTFE was at 551℃.

关 键 词：氟橡胶 聚四氟乙烯 炭黑 复合材料
FKM PTFE carbon black composites
分 类 号：TQ325.4 [工业技术 > 化学工业 > 合成树脂与塑料工业 > 聚合类树脂及塑料] TB33 [工业技术 > 一般工业技术 > 工程材料学]

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