Effect of seawater ageing with different temperatures and concentrations on static/dynamic mechanical properties of carbon fiber reinforced polymer composites

被引：75
作者：
Li, Hailin [1 ]
Zhang, Kaifu [1 ]
Fan, Xintian [2 ]
Cheng, Hui [1 ]
Xu, Guanhua [1 ]
Suo, Haoyuan [1 ]
机构：
[1] Northwestern Polytech Univ, Key Lab Contemporary Design & Integrated Mfg Tech, Minist Educ, Xian 710072, Shaanxi, Peoples R China
[2] AVIC Xian Aircraft Ind Grp Co Ltd, Xian 710072, Shaanxi, Peoples R China
来源：
COMPOSITES PART B-ENGINEERING | 2019年 / 173卷
关键词：
Polymer-matrix composites (PMCs); Environmental degradation; Internal friction/damping; Mechanical properties; WATER; GLASS; DURABILITY; MOISTURE; DEGRADATION; SHIPS;
D O I：
10.1016/j.compositesb.2019.106910
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The aim of this paper was to investigate the static/dynamic mechanical properties and failure mechanism of carbon fiber reinforced polymer composites (CFRP) in seawater environments. The prepared specimens were immersed in artificial seawater with different temperatures and NaCl concentrations for 7 months. Quasi-static tensile and dynamic mechanical analysis (DMA) tests were carried out to evaluate the tensile and damping properties. Ageing damage and fracture morphology were observed by using scanning electron microscope (SEM) technology. The results show that tensile strength was sensitive to ageing time and environmental temperature but non-sensitive to NaCl concentration. In addition, the failure mode was changed.
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页数：9
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