中国塑料 ›› 2010, Vol. 24 ›› Issue (04): 30-33 .DOI: 10.19491/j.issn.1001-9278.2010.04.006

• 材料与性能 • 上一篇    下一篇

玻璃微珠和炭黑对EPDM胶料硫化特性的影响

杨立宝 陆晓中 陆庆章 孙晓民   

  1. 北京化工大学,北京石油化工学院
  • 收稿日期:2009-12-01 修回日期:2010-01-28 出版日期:2010-04-26 发布日期:2010-04-26

Effects of Glass Bead and Carbon Black on Curing Characteristics of EPDM Rubbers

YANG Libao LU Xiaozhong LU Qingzhang SUN Xiaomin   

  • Received:2009-12-01 Revised:2010-01-28 Online:2010-04-26 Published:2010-04-26
  • Contact: YANG Libao

摘要: 考察了玻璃微珠/碳黑用量比对三元乙丙橡胶(EPDM)硫化特性的影响。结果表明,玻璃微珠/炭黑用量比增大时,EPDM胶料的焦烧时间略有延长,最小扭矩和最大扭矩均呈逐步减小的趋势。180 ℃时硫化胶的力学性能优于200 ℃时硫化胶。添加玻璃微珠后,胶料在180 ℃下的正硫化时间缩短近2倍,但200℃下的正硫化时间几乎没有受到任何明显的影响。玻璃微珠会明显减小胶料的硫化温度系数,即添加玻璃微珠后硫化温度对EPDM胶料硫化速度的影响程度将有所减小。

关键词: 玻璃微珠, 炭黑, 硫化特性, 三元乙丙橡胶

Abstract: The curing characteristics of EPDM rubber with different ratio of glass beads over carbon black (GB/CB) were studied. With increasing GB/CB ratio, the scorch time of EPDM increased slightly, and torque decreased, the mechanical properties of 180℃ vulcanized rubber were better than those of 200℃. When micro glass bead was added, the 180℃ optimum cure time of the EPDM rubber was cut down about 1/2 while that for 200℃ was not affected. The temperature coefficient of vulcanization, i.e., the effect of temperature on the vulcanization rate was decreased obviously.

Key words: glass bead, carbon black, curing characteristics, ethylene-propylene-diene monomer