热胀离解法研究结合胶填料网络性能  

Performance of different fillers in the reinforcement of rubber

作　　者：宋亦兰[1,2] 陈建[1] 附青山[1] 张华知[1] 谢纯[1] 

机构地区：[1]四川理工学院材料腐蚀与防护重点实验室,四川自贡643000 [2]中昊晨光化工研究院有限公司,四川富顺643201

出　　处：《新型炭材料》2016年第2期205-212,共8页New Carbon Materials

基　　金：国家自然科学基金(51572177);自贡市科技局重点项目(2011G043)~~

摘　　要：通过分析结合胶离解温度曲线,研究填料与橡胶之间的作用力。采用溶剂法分别制得6种不同填料的结合胶,探索结合胶的最佳解离时间,分析结合胶微观形貌结构、热胀离解温度及硫化后的宏观性能。结果表明,白炭黑在常温下体现出优异的补强性能,但在高温下的键能较弱;高结构炭黑在低温至高温下都表现出优良的补强性和成键稳定性,且硫化胶具有最优的定伸应力和拉伸强度;普通炭黑在低温和高温下的各项性能都处于中等,但在超高温下,其补强性能表现最为优异。White silica powder,low-structure and high-structure carbon blacks were used as fillers for rubber and were incorporated into them by dry or solvent-aided mixing methods. The bonding strength between filler and rubber was investigated by AFM,mechanical tests and a bonding test using solvent extraction with xylene. Results indicate that the silica has an excellent reinforcing performance at normal temperature,but the bond energy is weakened at high temperatures.High-structure carbon blacks exhibit excellent reinforcement and bonding stability at low to high temperatures,and vulcanized rubbers have the highest tensile strength and can withstand the highest tensile stress,and are considered the best fillers. Low-structure carbon blacks show an intermediate reinforcing performance between the silica and the high-structure carbon blacks,but their reinforcement is best at ultra high temperatures.

关 键 词：结合胶 炭黑 白炭黑 天然橡胶 热溶胀 

分 类 号：TQ330.1[化学工程—橡胶工业]