Cold-curing epoxy resins: Aging and environmental effects. II - Mechanical properties

被引：0
|
作者：
Frigione, M. [1 ]
Naddeo, C. [1 ]
Acierno, D. [1 ]
机构：
[1] Dept. of Innovation Engineering, University of Lecce, Lecce, Italy
来源：
| 2001年 / Freund and Pettman Publishers卷 / 21期
关键词：
Aging of materials - Elastic moduli - Environmental impact - Plastic adhesives - Strength of materials - Thermodynamic properties - Thermosets;
D O I：
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学科分类号：
摘要：
The influence of physical and chemical aging on the mechanical properties of two cold-curing epoxy adhesives, employed in reinforcing applications of civil engineering, was analyzed. The adhesives were subjected to 3-year natural exposure. The specimens only physically aged exhibit the highest values of static modulus and yield strength. The effects of chemical aging were found to be particularly severe on the filled adhesive. A de-aging treatment resulted in an incomplete recovery in modulus and strength. This effect was partially due to the crosslinking reactions taking place in the cold-cured adhesives.
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