遇水崩解型聚苯乙烯的发泡工艺  

Foaming Technology of Water-Disintegrable Polystyrene

作　　者：田健[1] 侯新华[1] 陈学刚[1] 于善普[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,山东青岛266042

出　　处：《现代塑料加工应用》2009年第1期33-36,共4页Modern Plastics Processing and Applications

摘　　要：合成了聚苯乙烯/聚丙烯酸钠吸水聚合物微粒共混材料,然后根据这种共混材料的特点,研究了发泡工艺。结果表明,共混物浸渍正戊烷后只有1个玻璃化温度(Tg);浸渍发泡剂正戊烷10 d,样品的正戊烷的含量达到饱和;还发现随聚苯乙烯相对分子质量的降低和聚丙烯酸钠吸水聚合物微粒含量的提高,样品中正戊烷的含量提高;选用了热平板发泡工艺,预发泡后熟化时间为24 h,所得泡孔分布不均匀。PS/PAANa blend was synthesized. Then the foaming technology was studied according to the characteristic of this blend. The results show that the blend impregnated by n-pentane has only one Tg. When the time of impregnating vesicant n-pentane is 10 days, the content of n-pentane in samples achieves saturation. When the molecular weight of polystyrene decreases and content of PAANa increases, the content of n-pentane of samples increases. Heated flat plate foaming technology was selected. Heat-preserved time was 24 h. The cell distribution was not homogeneous.

关 键 词：遇水崩解型聚苯乙烯 聚丙烯酸钠 发泡工艺 正戊烷 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业]