Supercritical fluid assisted polymer blending

被引：0

作者：

Elkovitch, MD ^{[1
]}

Lee, LJ ^{[1
]}

Tomasko, DL ^{[1
]}

机构：

[1] Ohio State Univ, Dept Chem Engn, Columbus, OH 43210 USA

来源：

CONFERENCE PROCEEDINGS AT ANTEC '98: PLASTICS ON MY MIND, VOLS I-3: VOL I; PROCESSING, VOL II; SPECIAL AREAS, VOL III; MATERIALS | 1998年 / 44卷

关键词：

D O I：

暂无

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The melt viscosity of individual homopolymers is one of the most important parameters influencing polymer blending. Often times blending involves components with vastly different viscosities. Supercritical carbon dioxide can be added to polymer melts in order to lower their viscosities such that effective polymer blending will occur. A blend system of a high viscosity polymethylmeehacrylate (PMMA) and low viscosity polystyrene, viscosity ratio of about twenty is analyzed in this work. Carbon dioxide has a higher affinity for PMMA than for polysytrene.(1) Therefore the viscosity of the PMMA will be selectively lowered by the carbon dioxide such that it becomes closer to that of polystyrene. An improvement in polymer blending results and will be shown in this work.

引用

页码：2538 / 2541

页数：4