摘要
研究妥尔油改性酚醛树脂SL2101用量对丁腈橡胶(NBR)胶料性能的影响。结果表明:随着酚醛树脂SL2101用量的增大,NBR胶料的门尼粘度减小,门尼焦烧时间缩短,t 90延长,硫化速度减慢,交联密度增大,硫化胶的邵尔A型硬度和定伸应力增大,拉断伸长率减小;添加少量的酚醛树脂SL2101有助于提高胶料的耐热氧老化性能。
The effect of the amount of tall oil-modified phenolic resin SL2101 on the properties of nitrite butadiene rubber(NBR)compound was studied.The results showed that,with the increase in the amount of phenolic resin SL2101,the Mooney viscosity of the NBR compound decreased,the Mooney scorch time was shortened,the t90 was extended,the curing speed was slowed down,crosslinking density increased,and the Shore A hardness and modulus of the vulcanizate increased,but the elongation at break decreased.The addition of a small amount of phenolic resin SL2101 could improve the thermo-oxidative aging resistance of the compound.
作者
郭添鸣
张洪霖
张赢今
胡涛
胡水
GUO Tianming;ZHANG Honglin;ZHANG Yingjin;HU Tao;HU Shui(Beijing Petroleum Machinery Co.,Ltd,Beijing 102206,China;Beijing University of Chemical Technology,Beijing 100029,China)
出处
《橡胶科技》
2020年第11期638-640,共3页
Rubber Science and Technology
基金
中国石油集团工程技术研究院有限公司青年基金项目(CPETQ201903)。
关键词
酚醛树脂
丁腈橡胶
加工性能
硫化特性
物理性能
phenolic resin
NBR
processing property
curing characteristics
physical property
