用凝聚法制备粉末丁腈橡胶  

Preparation of powdered butadiene-acrylonitrile rubber by coagulation

作　　者：何仕新[1] 戚盛杰[1] 程永祜 杨伯宣 张传贤[1] 黄立本[1] 李显臣[1] 

机构地区：[1]兰州化学工业公司合成橡胶厂

出　　处：《合成橡胶工业》1997年第6期331-334,共4页China Synthetic Rubber Industry

摘　　要：以非交联或交联型的丁腈－４０胶浆为原料，用正凝聚法使橡胶成粉得到粉末橡胶淤浆，再加入隔离剂防粘结，经过滤、洗涤、过筛、干燥而制得粒径不大于１．２５ｍｍ，橡胶含量大于９０％的粉末丁腈橡胶。研究了凝聚方式、隔离剂、凝聚剂、胶浆稳定性、凝聚条件、凝聚设备的结构等对成粉率的影响，成粉率达９０％以上。将所制产品与国外同类产品进行了比较。The slurry of powdered rubber was prepared using non-crosslinked or crosslinked butadiene-acrylonitrile rubber latex 40 as material,by coagulating into rubber powder in the presence of coagulating agent.Then powdered butadiene-acrylonitrile rubber with particle size less than 1.25 mm and rubber content more than 90% was prepared by adding insulator for antisticking ,filtering ,washing,sifting and drying.The effect of coagulating way,insulator,coagulating agent,latex stability,coagulating condition,structure of coagulator on powdered rate were studied.The product was compared with foreign products of same type.

关 键 词：凝聚 丁腈橡胶 粉末橡胶 制备 橡胶 

分 类 号：TQ333.99[化学工程—橡胶工业] TQ333.7