MORPHOLOGY AND DEFORMATION-BEHAVIOR OF TOUGHENED BLENDS OF POLY(BUTYLENE TEREPHTHALATE), POLYCARBONATE AND POLY(PHENYLENE ETHER)

被引：35
|
作者：
DEKKERS, MEJ
HOBBS, SY
WATKINS, VH
机构：
[1] General Electric Corporate Research and Development, Schenectady, NY
来源：
POLYMER | 1991年 / 32卷 / 12期
关键词：
BLENDS; MORPHOLOGY; TOUGHNESS; INTERFACIAL ADHESION; PHASE SEGREGATION;
D O I：
10.1016/0032-3861(91)90039-L
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 morphology and properties of blends of poly(butylene terephthalate) (PBT), bisphenol A polycarbonate (PC), poly(2,6-dimethyl-1,4-phenylene ether) (PPE), toughened with styrene-ethylene/butylene-styrene (SEBS) rubber have been found to be strongly affected by spontaneous phase segregation which occurs during melt compounding. In the composition range of interest, such segregation leads to the formation of a unique microstructure in which dispersed particles of rubber-modified PPE are encapsulated by thin envelopes of PC and embedded in a PBT matrix. Electron microscopy and tensile dilatometry studies of partially and fully formulated PBT/PC/PPE/SEBS blends have been used to relate the morphology of these materials to their deformation behaviour.
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页码：2150 / 2154
页数：5
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