中文摘要：

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。

英文摘要：

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.