非交联型粉末丁腈橡胶的研制

辛国萍　 赵瑸　 黄立本　

摘　要：分析了影响非交联型粉末丁腈橡胶专用胶乳性能的几个重要因素。结果表明，在引发剂(质量份，下同)0.09～0.10、叔十二碳硫醇0.60～0.75、聚合温度7～8℃、转化率65％～75％时可制备出合格的非交联型粉末丁腈橡胶专用胶乳。采用一价钠盐、二价镁盐和二价钙盐的复合凝聚剂和有机酸盐与硅油的复合隔离剂可制得性能较好的非交联型粉末丁腈橡胶。
关键词：非交联型粉末丁腈橡胶；制备；影响因素；凝聚剂；隔离剂
分类号：TQ333.99　文献标识码：B
文章编号：1000-1255(2001)03-0136-03

Preparation of non- crosslinked powdered butadiene- acrylonitrile rubber

Xin Guoping（Petrochemical Research Institute of Lanzhou Petrochemical Company, PetroChina, Lanzhou 730060, China）　
Zhao Bin（Petrochemical Research Institute of Lanzhou Petrochemical Company, PetroChina, Lanzhou 730060, China）　
Huang Liben（Petrochemical Research Institute of Lanzhou Petrochemical Company, PetroChina, Lanzhou 730060, China）　

Abstract：Several important factors effecting the latex properties of non - crosslinked powdered butadiene- acrylonitrile rubber were analyzed. The resuits showed that the qualified latex of noncrosslinked powdered butadiene- acrylonitrile rubber was prepared when initiator was 0. 09 ～ 0. 10phr, t - dodecyl mercaptan was 0. 06 ～ 0. 75 phr,conversion was 65% ～ 75% at 7 ～ 8 ℃ . Non crosslinked powdered butadiene- acrylonitrile rubber with better properties could be prepared using coagulant compounded with Na+, Mg2 + and Ca2 + and insulator compounded with organic acid salt and silicone oil.
Keywords：non- crosslinked powdered butadiene -acrylonitrile rubber;, preparation; effect factor;coagulant; insulator