Effects of accelerated thermo-oxidative aging on properties of a damped-encapsulating epoxy adhesive

被引：1
|
作者：
Shi, Minxian [1 ]
Huang, Zhixiong [1 ]
Yang, Guorui [1 ]
Li, Yaming [1 ]
机构：
[1] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Hubei, Peoples R China
来源：
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING | 2008年 / 47卷 / 02期
关键词：
accelerated thermo-oxidative aging test; damping properties; dynamic mechanical analysis; encapsulating; epoxy adhesive;
D O I：
10.1080/03602550701816142
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 effects of accelerated thermo-oxidative aging treatment on structure, hardness, morphology of fractured surface, and dynamic mechanical properties of a damped-encapsulating epoxy adhesive were investigated. FT-IR indicated the formation of a small quantity of amide groups. The hardness increases rapidly at earlier stages and then tends to stabilize when the thermo-oxidative aging time is over 300 hours. SEM graphs indicated a change from some toughness to rigidity. DMA analyses revealed that the Tg of the aged samples gradually shifted to higher temperatures, the maximum value of tan fluctuated in a narrow range, the tan spectra were greatly temperature dependent, and the tan spectrum showed a tendency of horizontal displacement with increased thermo-oxidative aging time.
引用
收藏
页码：180 / 185
页数：6
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