抗氧剂GM对丁腈橡胶／沉淀自炭黑混炼胶热氧老化性能的影响  

Effect ofAntioxidant GM on Thermal Aging Properties of NBR/WCB Blends

作　　者：郭建华[1] 曾幸荣[1] 罗权焜[1] 杨育农[2] 王庆[2] 

机构地区：[1]华南理工大学材料科学与工程学院,广东广州510640 [2]广州合成材料研究院有限公司,广东广州510665

出　　处：《广东橡胶》2012年第2期2-5,共4页Guangdong Rubber

摘　　要：研究了抗氧剂GM对丁腈橡胶／沉淀白炭黑混炼胶的硫化特性、力学性能和耐热老化性能的影响，并通过TG分析表征混炼胶的耐热稳定性。结果表明，抗氧剂GM具有防止焦烧和加快硫化的作用，随着GM用量的增大，混炼胶的拉伸强度和伸长率升高，撕裂强度和硬度下降。混炼胶的耐热老化性能随抗氧剂GM用量增大而提高，GM用量以4份为宜。TG分析表明，加入抗氧剂GM后，混炼胶的耐热稳定性提高。The effect of antioxidant GM on the curing characteristics, mechanical properties and thermal aging properties of NBR/WCB blends had been researched and the heat stability of the blends was characterized by TG analysis. The results show that antioxidant GM has effect on anti-scorching and improving curing speed. The tensile strength and elongation at break increase while tear strength and hardness decrease with the addition of GM. The thermal aging properties of the blends are improved with the increasing of GM dosage and the proper dosage of GM is 4 phr. TG analysis shows that the thermal stability of the blends increases with the addition of antioxidant GM.

关 键 词：抗氧剂GM 丁腈橡胶 耐热老化性能 TG 

分 类 号：TQ127.2[化学工程—无机化工]