乙烯基树脂复合材料湿热老化性能研究

Study on the Damp and Heat Aging Properties of Vinyl Resin Composites

本文研究了乙烯基树脂复合材料层合板在80℃湿热老化条件下的老化性能。研究表明,湿热老化42d后,复合材料拉伸强度保留率为60%,弯曲强度保留率为63%,这是由于湿热老化对界面产生的影响造成的;DMA数据表明,复合材料的玻璃化转变温度以及损耗因子都呈现下降的趋势。

The aging performance of vinyl resin composite laminates under damp heat aging conditions at 80℃was studied in this paper.Research shows that after 42 days of damp heat aging,the retention rate of tensile strength of the composite material is 60%,and the retention rate of bending strength is 63%,which is caused by the influence of damp heat aging on the interface;DMA data shows that the glass transition temperature of the composite material and the loss factor shows a downward trend.