The Microcellular Foaming of Polycarbonate/Polystyrene Blends

被引：9
|
作者：
Yang, Yong [1 ]
Zhang, Haobin [1 ]
Zheng, Wenge [1 ]
机构：
[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo Key Lab Polymer Mat, Ningbo 315201, Zhejiang, Peoples R China
来源：
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING | 2010年 / 49卷 / 12期
关键词：
Blend morphology; Cell nucleation and growth; Microcellular foaming; Polycarbonate; Polystyrene; SUPERCRITICAL CARBON-DIOXIDE; POLYMER BLENDS; MORPHOLOGY; CO2; GENERATION;
D O I：
10.1080/03602559.2010.496414
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The process of cell nucleation and growth in polycarbonate (PC)/polystyrene (PS) blends was investigated by altering the foaming temperature. It was found that cell nucleation and growth first took place in PS droplets. Microcellular samples with the average cell size of 2.4-8.4 mu m, cell density of 3.20x109-9.68x1010 cells/cm3 have been prepared under a very low saturation pressure, and the effect of blend morphology on the foaming of PC/PS blends with different blend ratios has been also studied. The experiment results showed that the cell sizes and the cell densities of PC/PS foams were controlled by changing the blend ratio.
引用
收藏
页码：1214 / 1222
页数：9
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