基于微观分析的GFRP浸水老化弯曲性能研究

复合材料科学与工程 ›› 2014, Vol. 0 ›› Issue (12): 74-78.

基于微观分析的GFRP浸水老化弯曲性能研究

黄杨, 方园, 刘伟庆^*, 杨曙兰

南京工业大学土木工程学院,南京 211816

收稿日期:2014-11-02 出版日期:2014-12-28 发布日期:2021-09-13
通讯作者: 刘伟庆(1964-),男,教授、博士生导师,wqliu@njtech.edu.cn。
作者简介:黄杨(1990-),男,在读研究生,从事复合材料结构研究。本文作者还有王俊。
基金资助:
国家自然科学基金重点项目(51238003);江苏省科技厅基础研究计划(自然科学基金)-青年基金项目(BK20140947);交通运输部建设科技项目(2013318798320)

FLEXUAL BEHAVIOR OF GFRP SHEETS IMMERSED IN WATER BASED ON MICROSTRUCTURE ANALYSIS

HUANG Yang, FANG Yuan, LIU Wei-qing^*, YANG Shu-lan

College of Civil Engineering, Nanjing Tech University, Nanjing 211816, China

Received:2014-11-02 Online:2014-12-28 Published:2021-09-13

摘要/Abstract

摘要： 本文开展了玻璃纤维增强复合材料(GFRP)在去离子水和NaCl溶液中常温浸泡前后的质量、弯曲强度、弯曲模量、腐蚀深度变化的研究,并基于微观分析研究了GFRP片材在去离子水和NaCl溶液中浸泡后的弯曲性能。研究结果表明,GFRP置于不同的溶液中,吸水率均呈现先上升后趋于平稳的趋势;GFRP在去离子水环境中的吸水率约为在NaCl溶液中的2倍;GFRP置于去离子水和NaCl溶液中120d后,片材的弯曲强度和模量均发生先上升后下降的变化;相同浸泡时间下,片材在去离子水中的腐蚀深度大于在NaCl溶液中的腐蚀深度。

关键词: 玻璃纤维增强复合材料, 盐溶液, 弯曲性能, 耐久性, 腐蚀深度

Abstract: The glass fiber reinforced polymer (GFRP) sheets were immersed in deionized water and saline solution at room temperature. The durability of GFRP sheets in clear water and saline solution was studied by changes in mass gains, modulus of rupture, modulus of elasticity, and aging thickness. The results showed that the mass gains increases with time and then tend to be stable in both solutions. The mass gains of GFRP sheets in deionized water are about 2 times than that in saline solution. The modulus of rupture and modulus of elasticity of GFRP sheets which marinated in deionized water and saline solution increase in the early stage and then decline. The aging thickness of GFRP sheets immersion in deionized water was higher than that immersed in saline solution at the same immersion time.

Key words: glass fiber reinforced polymer (GFRP), saline solution, flexual behavior, durability, aging thickness

中图分类号:

TB332

黄杨, 方园, 刘伟庆, 杨曙兰. 基于微观分析的GFRP浸水老化弯曲性能研究[J]. 复合材料科学与工程, 2014, 0(12): 74-78.

HUANG Yang, FANG Yuan, LIU Wei-qing, YANG Shu-lan. FLEXUAL BEHAVIOR OF GFRP SHEETS IMMERSED IN WATER BASED ON MICROSTRUCTURE ANALYSIS[J]. COMPOSITES SCIENCE AND ENGINEERING, 2014, 0(12): 74-78.

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