固化条件对环氧树脂胶黏剂粘合强度的影响

The Influence of Curing Condition on Adhesive Strength of Epoxy Resin Adhesive

研究了不同固化条件(温度、湿度)以及反应物配比对环氧树脂胶黏剂粘合强度的影响。结果表明,在使用环氧树脂胶黏剂粘接橡胶与金属基体时,固化条件对其粘接效果产生了显著影响。当温度为25℃,环氧树脂胶黏剂在湿度小于55%时粘合强度较高,湿度过高,粘合强度会明显下降,说明过于潮湿的环境不利于环氧树脂胶黏剂的应用。当湿度为55%,环氧树脂胶黏剂在20~25℃时粘合强度较高,当温度升高或者降低至10℃时,粘合强度都会有明显下降。

The influence of different curing conditions(temperature,humidity)and reactant ratio on the adhesive strength of epoxy resin adhesive were studied.The result shows that curing conditions have a significant influence on the bonding effect of epoxy resin adhesive between rubber and metal matrix.When the temperature is 25℃,the adhesive strength of epoxy resin is the highest in the range of humidity less than 55%.When the humidity is higher,the adhesive strength will obviously decrease,and too humid environment is not conducive to the application of epoxy resin adhesives.When the humidity is 55%,the adhesive strength of epoxy resin is higher in the range of 20℃~25℃.When the temperature is increased to 40℃or reduced to 10℃,the adhesive strength will be reduced.