热法丁腈橡胶的新生产技术开发  

Development of new production technology of nitrile rubber by hot emulsion polymerization

作　　者：桂强 荔栓红 李先林[2] 车春霞 张志强 李炳泉 

机构地区：[1]中国石油兰州化工研究中心,甘肃兰州730060 [2]中国石油兰州石化公司合成橡胶厂,甘肃兰州730060

出　　处：《合成橡胶工业》2008年第5期332-335,共4页China Synthetic Rubber Industry

基　　金：中国石油兰州石化公司科学研究与技术开发项目(LZSH200605)

摘　　要：研究了乳化体系、相对分子质量调节剂和引发剂等因素对热法丁腈橡胶（NBR）性能的影响，开发出牌号为NBR-2707的热法NBR新生产技术。结果表明，采用十二烷基磺酸钠替代拉开粉、叔十二碳硫醇替代二硫化二异丙基黄原酸酯（调节剂丁），制备出生产过程更加环保的NBR-2707产品，提高了反应速率；当十二烷基磺酸钠的质量分数为3％～4％、过硫酸钾质量分数为0.20％以及过硫酸钾与乙醇胺的质量比为7／1时，能制得综合性能良好的热法NBR。The effects of emulsification system, relative molecular mass regulator, and initiator on properties of hot emulsion polymerization nitrile rubber（NBR） were investigated, and a new production technology of hot emulsion polymerized NBR（2707） was developed. The results showed that NBR-2707 could be prepared by using sodium dodecyl sulfate to replace nekal BX and tert-dodecylmercaptan to replace regulator D. The process of new technology was more environment-protecting and could reduce the reaction time. The hot emulsion polymerized NBR with superior balanced properties was acquired when the mass fraction of sodium dodecyl sulphonate was 3% -4% , the mass fraction of potassium peroxydisulfate was 0.20% , and the mass ratio of potassium peroxydisulfate to ethanolamine was 7/1.

关 键 词：热法丁腈橡胶 十二烷基磺酸钠 叔十二碳硫醇 生产技术 

分 类 号：TQ333.7[化学工程—橡胶工业]