高发泡聚丙烯材料的研究  

Study on High-expanded PP Material

作　　者：郭喆[1] 揣成智[1] 

机构地区：[1]天津科技大学材料科学与化学工程学院,天津300457

出　　处：《塑料科技》2009年第1期60-63,共4页Plastics Science and Technology

基　　金："十一五"国家科技支撑项目(2006BAD30B02-4)

摘　　要：以偶氮二甲酰胺(AC)为发泡剂,采用化学交联法,使聚丙烯(PP)在发泡之前交联以提高熔体强度,并利用模压法制备了高发泡PP材料。结果表明:当AC含量为2份时,PP泡沫材料的表观密度降到0.2×103kg/m3,泡孔微观形态良好,但泡沫材料力学性能较差。Taking AC as foaming agent, PP was crosslinked before foaming by means of chemical crosslinking to improve its melt strength. The high expanded PP material was prepared by molding technology. The result shows that： when AC content is 2 phr, the apparent density of PP expanded material is up to 0.2× 10^3kg/m^3, the microstructure morphology of the cells is excellent, but the mechanical properties of PP expanded material decrease obviously.

关 键 词：聚丙烯 化学交联 发泡剂 泡沫材料 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]