HNBR/NBR共混物的动态硫化

雷昌纯　张立群　马军　张继川　冯予星　吴友平

摘要:以硫黄（1.5份）、促进剂DM（1.5份）作为NBR交联剂，在100℃下动态硫化8min，制得了HNBR/NBR共混物。考察了不同硫化体系及并用比对动态硫化共混物性能的影响，对比了动态硫化和静态硫化共混物在性能上的差异，并对其加工流动性和微观结构作了探讨。结果表明，随着HNBR含量的增加，动态硫化共混物性能提高，尤其是动态硫化共混物的耐热空气老化性能要优于静态硫化共混物的；TEM分析表明，HNBR/NBR质量比为40/60时HNBR在共混物中形成了连续相。
关键词:氢化丁氢橡胶；丁氢橡胶；动态硫化；静态硫化；共混物；物理机械性能
中图分类号:TQ333.7文献标识码:B
文章编号:1000－1255(2000)04－0230－04

Dynamic vulcanization of HNBR/NBR blends

Lei Changchun　Zhang Liqun　Ma Jun　Zhang Jichuan　Feng Yuxing and Wu Youping
（College of Materials Science and Engineering, Beijing University of Chemical Technology,Beijing 100029）

Abstract： The dynamically vulcanized HNBR/NBR blends were made through the process: S 1.5 phr and accelerator DM　1.5 phr as vulcanizing agent of NBR, dynamically vulcanized time 8 min at 100 ℃ . The influences of the curing system and the　blending ratio on the properties of blends were investigated and the properties of the dynamically vulcanized blends were　compared with those of the statically vulcanized blends. And the micro－ structure of the dynamically vulcanized HNBR/NBR　blends was analyzed. The results showed that the properties of the dynamically vulcanized blends were raised with HNBRadding and its hot air aging was better than that of the blends　 vulcanized statically. TEM analysis showed that the phase of　HNBR on HNBR/NBR mass ratio 40/60 became the continuous phase.
Keywords:hydrogenated nitrile rubber;nitrile rubber; dynamic vulcanization; statical vulcanization;blend;mechanical property

作者简介：雷昌纯，26岁，硕士。已发表论文3篇。
雷昌纯（北京化工大学材料科学与工程学院，北京100029）　
张立群（北京化工大学材料科学与工程学院，北京100029）　
马军（北京化工大学材料科学与工程学院，北京100029）　
张继川（北京化工大学材料科学与工程学院，北京100029）　
冯予星（北京化工大学材料科学与工程学院，北京100029）　
吴友平（北京化工大学材料科学与工程学院，北京100029）

参 考 文 献 :

1，Coran A Y, Lee S. New elastomers by reactive processing. PartⅡ . Dynamic vulcanization of blends by trans－
esterification[J]. Rubber Chemistry and Technology, 1992,65(1):232
2，Coran A Y, Lee S. New elastomers by reactive processing. PartⅠ . Vulcanizable precured alloys from NBR and ACM[J].
Rubber Chemistry and Technology,1990,63(4):599

收稿日期：1999－06－15
修订日期：2000－01－12