聚丙烯/废旧轮胎胶粉共混物的微孔发泡研究  

Study on Microcellular Foaming of PP/Ground Tire Rubber Powder Composites

作　　者：陈琪[1] 王军晓[2] 辛振祥[1] 张振秀[1] 

机构地区：[1]青岛科技大学橡塑材料与教育部重点实验室,山东青岛266042 [2]苏州宝化炭黑有限公司朱永宁研发中心,江苏苏州215151

出　　处：《特种橡胶制品》2012年第5期7-11,26,共6页Special Purpose Rubber Products

基　　金：山东省自然基金(ZR2010EM044);国家自然科学基金主任基金(51143008);留学归国人员科技活动项目择优资助

摘　　要：采用超临界CO2为发泡剂,通过压力释放法对聚丙烯/废旧轮胎胶粉共混物的发泡性能进行研究。结果表明,加入胶粉严重破坏了聚丙烯均匀的泡孔结构,共混物发泡体具有独特的双孔结构;马来酸酐接枝聚丙烯/废旧轮胎胶粉共混物发泡体具有更加均匀一致的泡孔结构。PP/Ground Rubber Tire(GRT) powder microcellular foams were prepared by pressure quench method using supercritical carbon dioxide.The results showed that with the addition of GRT powder,the cell structure of PP/GRT blend was destroyed,and the PP/GRT blend foams had a unique bimodal(large and small) cellular structure.The microcellular foams of PP-g-MA/GRT(50/50) blend had a very fine and uniform cell structure and lower relative densities.

关 键 词：废旧轮胎胶粉 聚丙烯 微孔发泡 超临界CO2 

分 类 号：TQ330.6[化学工程—橡胶工业]