文献类型：期刊文献

中文题名：连续玻璃纤维增强聚丙烯拉挤棒材的性能稳定性

英文题名：THE STABILITY OF CONTINUOUS GLASS FIBER REINFORCED POLYPROPYLENE PULTRUDED RODS

作者：万正[1];周晓东[1]

机构：[1]华东理工大学化学工程联合国家重点实验室,上海200237

年份：2013

期号：8

起止页码：I0013

中文期刊名：玻璃钢/复合材料

外文期刊名：Fiber Reinforced Plastics/Composites

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：中央高校基本科研业务费专项资金

语种：中文

中文关键词：连续玻璃纤维;热塑性拉挤;拉挤棒材;稳定性

外文关键词：continuous glass fiber ; thermoplastic puhmsion ; puhruded rods ; stability

摘要：本文利用自行开发设计的热塑性拉挤装置成功制备了连续玻璃纤维增强聚丙烯拉挤棒材。针对该棒材预期的使用环境,考察了拉挤棒材在不同环境条件下的性能变化,探讨了高低温、热处理及冻融循环对拉挤棒材性能的影响规律。高低温试验表明,随着温度升高,材料弯曲性能逐渐下降,在100℃时仍有40%左右的弯曲性能保留率,而在低温下,材料弯曲性能则呈上升趋势;材料经过热处理后,弯曲性能也获得了一定的提高;通过热处理后的冻融循环试验后,材料的弯曲性能和剪切强度有所下降,但是幅度不大。上述结果表明材料在不同环境下具有较好的性能稳定性。
In this paper, puhruded rods of continuous glass fiber reinforced polypropylene were prepared by self-design thermoplastic pultrusion equipment. The stability of puhruded rods under different environment condi- tions were investigated according to the expectant environment during service life, and the influences of high and low temperature, heat treatment and freeze-thaw cycle on the properties of pultruded rods were studied. The results of high and low temperature test showed that the flexural properties decreased with temperature rising, but there was still 40% retention rate of flexural properties at 100℃. And at low temperature, the flexural properties of puhruded rods raised. The flexural properties also raised after heat treatment. Furthemore, the flexural properties and shear strength of puhruded rods decreased through freeze-thaw cycle after heat treatment, but the decline range was small. The above results indicated that the puhruded rods had good stability under different environment conditions.