Foaming of Polystyrene with Supercritical Carbon Dioxide

被引：1

作者：

Ma, Weihua ^{[1
]}

Ding, Jie ^{[1
]}

Zhong, Qin ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Jiangsu, Peoples R China

来源：

LEADING EDGE OF MICRO-NANO SCIENCE AND TECHNOLOGY | 2013年 / 669卷

关键词：

Foaming; Polystyrene; Supercritical Carbon Dioxide; Glass Transition Temperature; RHEOLOGICAL PROPERTIES;

D O I：

10.4028/www.scientific.net/AMR.669.366

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

General Purpose Polystyrene (GPPS) and High Impact Polystyrene (HIPS) were foamed with supercritical carbon dioxide in the batch foaming process. Foaming behaviors of GPPS and HIPS were investigated. The cell diameters and cell densities of GPPS and HIPS vary strangely with foaming conditions and can not be explained by the classical nucleation. The competition between cell growth and cell nucleation is used to explain these strange foaming behaviors. The glass transition temperature (T-g) almost remains constant with the foaming temperature rising.

引用

页码：366 / 370

页数：5