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.
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
关键词
废旧轮胎胶粉
聚丙烯
微孔发泡
超临界CO2
Ground Rubber Tire(GRT) powder
Polypropylene
Microcellular foaming
Supercritical carbon dioxide
