防老剂L60对天然橡胶胶料耐老化性能的影响  

Influence of Antioxidant L60 on Aging Resistance of NR Compound

作　　者：孙帆 吴明生[1] SUN Fan;WU Mingsheng(Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《橡胶工业》2022年第9期687-692,共6页China Rubber Industry

基　　金：青岛科技大学横向科研项目。

摘　　要：研究防老剂L60(主要成分源于木质素)在天然橡胶(NR)中的应用,并与防老剂264、防老剂2246、防老剂445和防老剂4020进行对比。结果表明:防老剂L60会降低胶料的硫化速度;防老剂L60硫化胶的耐热空气老化性能较好,耐臭氧老化性能与防老剂264硫化胶相当;防老剂L60对NR硫化胶的热分解温度影响较小。The application of antioxidant L60(its main component was derived from lignin)in natural rubber(NR)was studied and compared with antioxidant 264,antioxidant 2246,antioxidant 445 and antioxidant 4020.The results showed that,antioxidant L60 could reduce the curing speed of the compound.The hot air aging resistance of the vulcanizate with antioxidant L60 was better,and the ozone aging resistance was comparable to that of the vulcanizate with antioxidant 264.Moreover,antioxidant L60 had little effect on the thermal decomposition temperature of NR vulcanizate.

关 键 词：防老剂 天然橡胶 耐热空气老化性能 耐臭氧老化性能 热分解温度 

分 类 号：TQ330.382[化学工程—橡胶工业] TQ332.6