| 丁腈橡胶/聚甲醛共混物动态硫化的研究 |
| Study on Dynamic Vulcanization of NBR/POM Blend |
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| DOI： |
| 中文关键词: 丁腈橡胶 聚甲醛 动态硫化 |
| 英文关键词: NBR POM dynamic vulcanization |
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| 中文摘要: |
| 采用2402树脂硫化体系以动态硫化方法制备了丁腈橡胶(NBR)/聚甲醛(POM)热塑性弹性体。研究了丙烯含量、硫化体系、橡塑比等对共混物性能的影响。实验结果表明：NBR中丙烯腈含量增加，共混物的拉伸强度显著提高；随着POM用量增加，共混物的强度略有提高，表观粘度降低，加工性能改善，电性能、老化性能和耐油性能均得到明显提高。DSC分析表明，共混物中POM的结晶度明显比纯POM低，熔点也有所下降。 |
| 英文摘要: |
| A NBR/POM TPE was prepared with the dynamic vulcanization using 2402 resin curing system.The influence of acrylonitrile content，curing system and NBR/POM blending ratio on the properties of the blend was investigated.The test results showed that the tensile strength of the blend increased signifieantly as the acrylonitrile content in NBR increased；the strength of the blend increased slightly，the apparent viscosity decreased，the processibility improved，the electric property，aging property and oi1 resistance increased remarkably as the POM content inereased.DSC analysis showed that the crystallinity of POM in the blend was significantly lower than that of the pure POM and its melt point was a little lower. |
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