四川石化NdBR与同类产品对比分析  

A comparative analysis of NdBR of sichuan petrochemical and similar products

作　　者：赵洪国[1,2] 杨玉琼 黄溪岱[1,2] 吴宇 李波 周雷[1,2] 何连成 ZHAO Hongguo;YANG Yuqiong;HUANG Xidai;WU Yu;LI Bo;ZHOU Lei;HE Liancheng(Petrochemical Research Institute of PetroChina,Synthetic Rubber Engineering Research Center of PetroChina,Lanzhou 730060,China;Synthetic Rubber Engineering Technology Research Center of Gansu Province,Lanzhou 730060,China)

机构地区：[1]中国石油天然气股份有限公司石油化工研究院合成橡胶工程研究中心,甘肃兰州730060 [2]甘肃省合成橡胶工程技术研究中心,甘肃兰州730060

出　　处：《弹性体》2021年第6期65-69,共5页China Elastomerics

摘　　要：考察了四川石化钕系顺丁橡胶(NdBR)的微观结构、分子量、门尼黏度和门尼应力松弛、混炼胶性能及硫化胶性能,并与国内市场同类产品进行了对比剖析。结果表明,四川石化NdBR的微观结构与奇美化工NdBR(PR-040)相当,乙烯基结构、重均相对分子质量及其分布与燕山石化NdBR(BRNd40)相当。四川石化NdBR混炼胶的硫化效率和加工性能与阿朗新科NdBR(CB24)相当,略优于其他同类对比产品。四川石化NdBR硫化胶的拉伸强度与阿朗新科CB24、奇美化工PR-040处于同等水平,但较燕山石化BRNd40约低8%;其压缩永久变形与阿朗新科CB24,回弹性与奇美化工PR-040处于同一水平;抗疲劳压缩温升和耐磨耗性能略逊于同类对比产品。The microstructure,molecular weight,Mooney and Mooney stress relaxation,compounding properties and vulcanizate properties of Sichuan Petrochemical NdBR were investigated,and compared with similar products in the domestic market.The results show that the microstructure of Sichuan Petrochemical NdBR is equivalent to Chimei Chemical′s NdBR(PR-040),and the vinyl structure,weight average molecular weight and average molecular weight distribution are equivalent to Yanshan Petrochemical′s NdBR(BRNd40).The vulcanization efficiency and processing performance of Sichuan Petrochemical′s NdBR rubber compound is equivalent to ARLANXEO′s NdBR(CB24),which is slightly better than other comparable products.The tensile strength of Sichuan Petrochemical′s NdBR vulcanizate is at the same level as ARLANXEO CB24 and Chi Mei Chemical PR-040,but about 8%lower than Yanshan Petrochemical′s BRNd40;its compression set is comparable to ARLANXEO CB24,and resilience is at the same level,when compared with Chi Meis;anti-fatigue compression temperature rise and abrasion resistance are slightly inferior to similar comparison products.

关 键 词：钕系顺丁橡胶 应力松弛 性能 疲劳压缩 

分 类 号：TQ331.4[化学工程—橡胶工业]