標題: Protection of epoxy resin against thermo-oxidation via cocuring epoxy/resole (II)
作者: Lin, MS
Chiu, CC
應用化學系
Department of Applied Chemistry
關鍵字: cocured materials;thermo-oxidation;formation of carbonyls;mechanical property tests
公開日期: 2001
摘要: Cocured materials based on resole/epoxy in weight ratios of 100/0, 50/50 and 0/100 were prepared by using NaOH and 4,4'-diaminodiphenylmethane (DMA) as curing agents. These cocured samples were subjected to accelerated aging at 150 degreesC in air for 45 days. Continuous increase of carbonyl IR absorption at 1700-1740 cm(-1) indicated thermal oxidation. The sample with resole/epoxy = 50/50 showed significantly retarded formation of carbonyls. Mechanical property tests of samples during the course of aging, including tensile stress-strain, modulus, and impact resistance confirmed a significant protection of epoxy by incoporating resole into the epoxy via cocuring. (C) 2001 Elsevier Science Ltd. All rights reserved.
URI: http://hdl.handle.net/11536/30002
http://dx.doi.org/10.1016/S0141-3910(00)00122-1
ISSN: 0141-3910
DOI: 10.1016/S0141-3910(00)00122-1
期刊: POLYMER DEGRADATION AND STABILITY
Volume: 71
Issue: 2
起始頁: 327
結束頁: 329
顯示於類別:期刊論文


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  1. 000166656400017.pdf