Probing the interface behaviour of injection molded thermoplastics by micro-thermal analysis and temperature-modulated differential scanning calorimetry

被引：9

作者：

Edwards, SA

Provatas, M

Ginic-Markovic, M

Choudhury, NR

机构：

[1] Ian Wark Research Institute, University of South Australia, Adelaide, SA 5095, Mawson Lakes BLVD.

来源：

POLYMER | 2003年 / 44卷 / 13期

基金：

澳大利亚研究理事会;

关键词：

interfaces; micro-thermal analysis; TMDSC;

D O I：

10.1016/S0032-3861(03)00291-X

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Micro-thermal analysis (muTA(TM)) and temperature-modulated differential scanning calorimetry (TMDSC) are emerging as powerful instruments for identifying the existence and quantities of phases in multi-component systems, as well as interfacial properties. In this study, these two complimentary techniques are utilised to probe the interphase behaviour of a polycarbonate/acrylonitrile-styrene-acrylate (PC/ASA) blend as they develop during injection molding. Micro-thermal analysis revealed that parts manufactured at high injection time, pack pressure and melt temperature show a densely packed bulk morphology, a significant amount of particle agglomeration as well as the formation of styrene-acrylonitrile/PC (SAN/PC) interphases. TMDSC qualitatively and quantitatively characterized the PC/ASA's multi-phase morphology and its interfacial properties both before and after injection molding, indicating a greater amount of PC entering the interphase than SAN. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：3661 / 3670

页数：10

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