连续玻璃纤维增强聚丙烯拉挤棒材的性能稳定性

复合材料科学与工程 ›› 2013, Vol. 0 ›› Issue (9): 13-16.

连续玻璃纤维增强聚丙烯拉挤棒材的性能稳定性

方立, 周晓东^*

华东理工大学化学工程联合国家重点实验室,上海 200237

收稿日期:2013-01-28 出版日期:2013-12-28 发布日期:2022-03-22
通讯作者: 周晓东,教授,主要从事聚合物材料的高性能化、功能化改性及聚合物基复合材料界面改性领域的研究工作,xdzhou@ecust.edu.cn。
作者简介:方立(1982-),男,博士,主要研究纤维增强热塑性复合材料制备及成型工艺。
基金资助:
中央高校基本科研业务费专项资金

THE STABILITY OF CONTINUOUS GLASS FIBER REINFORCED POLYPROPYLENE PULTRUDED RODS

FANG Li, ZHOU Xiao-dong^*

State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China

Received:2013-01-28 Online:2013-12-28 Published:2022-03-22

摘要/Abstract

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。

关键词: 连续玻璃纤维, 热塑性拉挤, 拉挤棒材, 稳定性

Abstract: In this paper, pultruded rods of continuous glass fiber reinforced polypropylene were prepared by self-design thermoplastic pultrusion equipment. The stability of pultruded rods under different environment conditions 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 pultruded rods raised. The flexural properties also raised after heat treatment. Furthemore, the flexural properties and shear strength of pultruded rods decreased through freeze-thaw cycle after heat treatment, but the decline range was small. The above results indicated that the pultruded rods had good stability under different environment conditions.

Key words: continuous glass fiber, thermoplastic pultrusion, pultruded rods, stability

中图分类号:

TB332

方立, 周晓东. 连续玻璃纤维增强聚丙烯拉挤棒材的性能稳定性[J]. 复合材料科学与工程, 2013, 0(9): 13-16.

FANG Li, ZHOU Xiao-dong. THE STABILITY OF CONTINUOUS GLASS FIBER REINFORCED POLYPROPYLENE PULTRUDED RODS[J]. COMPOSITES SCIENCE AND ENGINEERING, 2013, 0(9): 13-16.

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