INTERRELATIONSHIP BETWEEN THE CRYSTALLIZATION BEHAVIOR, INJECTION MOLDING CONDITIONS, AND MORPHOLOGY OF POLY(ETHYLENE TEREPHTHALATE)/POLY(METHYL METHACRYLATE) ALLOYS.

被引：0
|
作者：
Nadkarni, V.M. [1 ]
Jog, J.P. [1 ]
机构：
[1] Natl Chemical Lab, Poona, India, Natl Chemical Lab, Poona, India
来源：
Polymer Engineering and Science | 1986年 / 27卷 / 06期
关键词：
CRYSTALLIZATION - PLASTICS - Injection Molding - POLYMERS - Morphology - POLYMETHYL METHACRYLATE - Blending;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The thermal and isothermal crystallization behavior of PET/PMMA (poly(ethylene terephthalate)/poly(methyl methacrylate)) alloys was investigated. The crystallization of PET is accelerated significantly by alloying with PMMA. As a result, crystalline specimens could be injection molded with the alloy at low mold temperatures of 19 degree , 55 degree and 90 degree C, whereas a mold temperature of about 130 degree C is normally required for crystallinity to develop in the virgin PET grade. The impact strength of the alloy specimens increased significantly with decreasing mold temperature despite a comparable degree of crystallinity. The increase in impact strength is correlated to the reduction in the crystallite size and broadening of the crystal size distribution with decreasing mold temperature.
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页码：451 / 457
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