|本期目录/Table of Contents|

[1]谢龙飞,刘伟庆,齐玉军,等.玻璃纤维增强不饱和聚酯树脂基复合材料的紫外老化性能[J].南京工业大学学报(自然科学版),2014,36(06):93-98.[doi:10.3969/j.issn.1671-7627.2014.06.017]
 XIE Longfei,LIU Weiqing,QI Yujun,et al.UV aging performance of glass fiber reinforced polymer[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2014,36(06):93-98.[doi:10.3969/j.issn.1671-7627.2014.06.017]
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玻璃纤维增强不饱和聚酯树脂基复合材料的紫外老化性能()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
36
期数:
2014年06期
页码:
93-98
栏目:
出版日期:
2014-11-21

文章信息/Info

Title:
UV aging performance of glass fiber reinforced polymer
文章编号:
1671-7627(2014)06-0093-06
作者:
谢龙飞刘伟庆齐玉军方园
南京工业大学 土木工程学院,江苏 南京 211800
Author(s):
XIE LongfeiLIU WeiqingQI YujunFANG Yuan
College of Civil Engineering,Nanjing Tech University,Nanjing 211800,China
关键词:
纤维增强复合材料 成型工艺 紫外 耐久性
Keywords:
fiber reinforced polymer(FRP) modeling process ultraviolet(UV) durability
分类号:
TB332
DOI:
10.3969/j.issn.1671-7627.2014.06.017
文献标志码:
A
摘要:
针对玻璃纤维增强不饱和聚酯树脂基复合材料(GFRP)紫外老化问题,研究了真空导入成型工艺和手糊工艺制作的GFRP试件的紫外老化性能,分析了2种工艺下GFRP试件紫外老化后的巴氏硬度、弯曲破坏形态以及弯曲强度和弯曲模量演变规律。结果表明:紫外光照射后,GFRP试件被照射表面巴氏硬度与未照射表面相比明显下降; 紫外老化后GFRP试件的弯曲破坏过程与未老化试件一致; 在紫外老化前期弯曲强度和弯曲模量在波动中有所上升,经过一段时间后开始下降,且手糊工艺的下降较多。最终在老化120 d后,弯曲强度和弯曲模量均大于初始值,但低于在室温下密闭处理120 d后的GFRP试件的弯曲强度和模量。
Abstract:
To solve the problems of UV aging on GFRP,the aging resistance of GFRP specimens by vacuum assisted resin transfer molding and hand lay-up was studied. The development rules of Barcol rigidity,bending failure pattern,bending strength, and bending elasticity modulus by two modeling processes after UV exposure were analyzed.Results showed that the Barcol rigidity of the irradiated surface declined obviously compared with the surface without irradiation,and the bending failure process after UV exposure remained same as that before irradiation.The bending strength and bending elasticity modulus fluctuated upward at the early stage of UV exposure,and then declined after a period of time,especially for the specimens by hand lay-up technique.The bending strength and bending elasticity of GFRP irradiated for 120 d were higher than initial values,but lower than the experimental values from the specimens hermetically placed at room temperature for 120 d.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2013-12-17
基金项目:国家自然科学基金重点项目(51238003); 江苏省高校自然科学基金(11KJB580003)
作者简介:谢龙飞(1989—),男,江苏仪征人,硕士,主要研究方向为复合材料紫外老化; 刘伟庆(联系人),教授,E-mail:wqliu@njtech.edu.cn..
更新日期/Last Update: 2014-11-20