PP／TPI共混材料超临界二氧化碳发泡  

Polypropylene/Trans-1,4-Polyisoprene Foaming by Supercritical CO_2

作　　者：康菲菲[1] 高长云[1] 冷秀江 孟倩倩[1] 辛振祥[1] 

机构地区：[1]青岛科技大学,橡塑材料与工程教育部重点实验室/山东省橡塑材料与工程重点实验室,山东青岛266042 [2]青岛博宁福田智能交通科技发展有限公司,山东青岛266109

出　　处：《塑料》2017年第1期76-78,共3页Plastics

摘　　要：采用熔融共混的方法制备聚丙烯(PP)/反式-1,4-聚异戊二烯(TPI)共混材料,然后用超临界CO_2对其进行发泡。通过差示扫描量热分析(DSC)、发泡倍率测试、扫描电子显微镜(SEM)等测试手段研究了共混材料发泡前后的性能变化。结果表明:PP/TPI共混材料可形成微孔泡沫结构;随着TPI含量增加,材料泡孔尺寸变大,泡孔壁变薄。Polypropylene/trans-1,4-polyisoprene（PP/TPI） blend composition was prepared by melt blending method. PP/TPI composition was foamed blowing with supercritical CO2. The performances of unfoamed blends and foams were studied by differential scanning calorimetry （ DSC）, foaming ratio and scanning electron microscopy （ SEM）. The results showed that PP/TPI and crosslinking PP/TPI both could get closed microcellular structure. With the increasing of TPI content,the average cell size became larger and the cell wall became thinner.

关 键 词：聚丙烯 反式-1 4-聚异戊二烯 共混 超临界二氧化碳 发泡 

分 类 号：TQ325.1[化学工程—合成树脂塑料工业]