环保醚酯型增塑剂RPL-1在NBR中的应用研究  

The effects of environmental friendly ether ester plasticizer RPL-lon the properties of NBR

作　　者：陈振勇[1] 魏明勇[1] 陈朝晖[1] 

机构地区：[1]华南理工大学材料科学与工程学院,广州510640

出　　处：《广东橡胶》2010年第10期1-5,共5页Guangdong Rubber

摘　　要：研究了环保醚酯型增塑剂RPL-1用量对丁腈橡胶（NBR）的门尼黏度、硫化特性、力学性能、热空气老化性能、压缩永久变形、耐寒性及耐油性的影响。结果表明，RPL-1的增塑效果明显，与未添加增塑剂NBR硫化胶相比，添加25份RPL-1时硫化胶的门尼黏度、最高转矩、硬度分别下降了68％、66％、21度；拉断伸长率、回弹性分别增加了36％、38％。DSC和DMA测试表明，RPL-1显著提高了NBR硫化胶的耐寒性，与未添加增塑剂的硫化胶相比，添加25份RPL—1硫化胶的玻璃化温度、tanδ峰值对应温度、低温脆性温度分别下降了16℃、16℃、15℃。The effects of RPL-I content on Mooney viscosity, curing characteristics, mechanical properties, hot air aging resistance, permanent compression set, oil resistance, and low temperature performance of NBR are investigated. The results show that RPL-1has an effective plasticization on NBR. Compared with that of plasticizer- free, when added 25 phr RPL-1 in NBR, the Mooney viscosity, MH, Shore A hardness of NBR decrease by 70%,66%,21% respectively, while elongation at break, rebound resilience increase by 36%,3%, respectively. Tg, maximum tan8 value corresponding temperature, brittleness temperature of NBR decrease by 16%, 16%, 15%, respectively, which show that RPL-1 can enhance the low temperature resistance of NBR obviously.

关 键 词：醚酯型增塑剂 丁腈橡胶 耐寒性 

分 类 号：TQ414[化学工程]