Cure kinetics of epoxy resin and thermoplastic polymer

被引：29

作者：

Sanchez-Cabezudo, Marta ^{[1
]}

Prolongo, Margarita G. ^{[1
]}

Salom, Catalina ^{[1
]}

Masegosa, Rosa M. ^{[1
]}

机构：

[1] Univ Politecn Madrid, EUIT Aeronaut, E-28040 Madrid, Spain

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2006年 / 86卷 / 03期

关键词：

cure kinetics; epoxy/polyvinyl acetate blends; morphology; MORPHOLOGY; BLENDS; MISCIBILITY; ETHER; DSC;

D O I：

10.1007/s10973-006-7896-4

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The cure kinetics and morphology of diglycidyl ether of bisphenol A (DGEBA) modified with polyvinyl acetate (PVAc) using diaminodiphenylmethane (DDM) as hardener were investigated through differential scanning calorimetry (DSC) and environmental scanning electron microscopy (ESEM). Isothermal curing measurements were carried out at 150, 120 and 80 degrees C. The kinetic parameters were obtained using the general autocatalytic chemically controlled model. The comparison of the kinetic data indicates that the presence of PVAc does not change the autocatalytic nature of the cure reaction. Two T-g's were observed in the fully cured samples of the modified systems. ESEM micrographies confirm the biphasic morphology.

引用

页码：699 / 705

页数：7

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