Curing of epoxy/alkyd blends in self-healing coating

被引：3

作者：

Shahabudin, Nurshafiza ^{[1
,2
]}

Yahya, Rosiyah ^{[2
,3
]}

Gan, Seng Neon ^{[3
]}

Sonsudin, Faridah ^{[1
]}

机构：

[1] Univ Malaya, Ctr Fdn Studies Sci, Kuala Lumpur 50603, Malaysia

[2] Univ Malaya, Fac Sci, Dept Phys, Ctr Ion, Kuala Lumpur 50603, Malaysia

[3] Univ Malaya, Dept Chem, Fac Sci, Kuala Lumpur 50603, Malaysia

来源：

HIGH PERFORMANCE POLYMERS | 2018年 / 30卷 / 08期

关键词：

Self-healing; alkyd; palm oil; epoxy; blend; curing; POLYMER COMPOSITES; OIL; KINETICS; RESINS; SYSTEM;

D O I：

10.1177/0954008318784635

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Self-healing of polymeric material using microcapsules has been developed to repair microcracks within the materials. The self-healing character is reflected from the curing behavior of the material. In this work, curing study of alkyd/epoxy blend was carried out by replacing part of amine hardener with alkyd in the epoxy formulation. The inclusion of alkyd in the epoxy blend resulted in higher degree of curing and higher thermal stability compared to the alkyd-free blend, as evidenced from higher heat of reaction values of differential scanning calorimetry and maximum degradation temperature at 379 degrees C, respectively. Self-healing reaction of epoxy coating as evaluated by Fourier-transform spectroscopy revealed that the 914 cm(-1) peak attributed to C-O-C of epoxy has decreased, as the epoxide group was consumed in the reaction. Appearance of a new peak at 1631-1632 cm(-1) in the cured coating confirmed that the epoxide has reacted with the carboxylic acid group of alkyd to form ester.

引用

页码：1009 / 1015

页数：7

共 23 条

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