ADHESIVELY BONDED REPAIR OF DAMAGED METALLIC STRUCTURE USING UV CURABLE CARBON FIBER FABRIC/CEP-ES RESIN COMPOSITES

Abstract

Abstract: The UV ignited self-propagating curing resin blends, including cycloaliphatic epoxy (CEP) and organic silicone resin modified by epoxy (ES), were designed. Based on the blends, carbon fiber fabric reinforced composites can be cured quickly by UV radiation. Adhesively bonded repair of damaged metallic structure using UV curable carbon fiber composite material was studied experimentally. According to the results, the introduction of ES can not only increase the load bearing capability of adhesively repaired structure but also improve its resistance of hydrothermal environment. When the weight percent of ES was 20%~30%, the repaired structure had the best ability of load bearing. Increase of the length and layer number of composite patch can enhance the repair effect. Compared with single-sided repair, double-sided repair was the better repair mode.

Key words: UV curing, self-propagating curing, carbon fiber composites, adhesively bonded repair, organic silicon resin, cycloaliphatic epoxy

CLC Number:

TB332
V258

ZHAO Pei-zhong, WEI Hua-kai, HUANG Xu-ren, DAI Jing-tao. ADHESIVELY BONDED REPAIR OF DAMAGED METALLIC STRUCTURE USING UV CURABLE CARBON FIBER FABRIC/CEP-ES RESIN COMPOSITES[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(6): 88-92.

References

[1] Baker A A. A proposed approach for certification of bonded composite repairs to flight-critical airframe structure[J]. Applied Composite Materials, 2004, 18(4): 337-369.
[2] Baker A A, Rose L R F, Jones R. Advances in the bonded composite repair of metallic aircraft structure[J]. Amsterdam: Elsevier, 2002.
[3] 杨孚标,肖加余,江大志,等. 炭纤维/环氧复合材料单面修补中心裂纹铝合金板的静态和疲劳特性[J]. 复合材料学报,2007,24(3):1-6.
[4] 文思维,肖加余,江大志,等. 铝合金板厚度对硼/环氧补片单面修复试件疲劳性能的影响[J]. 复合材料学报,2009,26(3):7-12.
[5] Xiong J J, Shenoi R A. Integrated experimental screening of bonded composites patch repair schemes to notched aluminum-alloy panels based on static and fatigue strength concepts[J]. Composite Structure, 2008, 83 (9):266-272.
[6] Zhao P, Hu F,Huang X. Composite repair to aluminum alloy plate by photoinitiated and thermal curing[J]. Journal of Composite Materials,2013,47(9): 1179-1184.
[7] 吕波, 聂俊. 三缩乙二醇双甲基丙烯酸超低温紫外光聚合[J]. 感光科学与光化学, 2005, 23(5): 321-326.
[8] 徐志义, 廖建和, 廖双泉, 等. 光热双重固化聚丙烯酸酯压敏胶的制备及性能研究[J]. 中国胶粘剂,2009,18(7):29-33.
[9] 黄旭仁,胡芳友,赵培仲. 加载速率对复合材料粘接修理金属结构力学性能的影响研究[J].复合材料学报,2013,30(2):220-225.
[10] 赵培仲,戴京涛,吉伯林,等. UV光固化玻璃纤维布/EP-PBMA树脂复合材料的力学性能[J].复合材料学报,2014,31(5):1186-1191.
[11] 何芳,王玉林,万怡灶,等. 光固化树脂基复合材料研究进展[J]. 工程塑料应用,2003,31(11):67-70.
[12] 吴懋亮, 赵万华, 李涤尘, 卢秉恒. 光固化快速成型树脂涂层厚度的研究[J]. 西安交通大学学报, 2002, 36(1): 47-50.
[13] Yagci Y,Jockusch S,Turro N. J. Photoinitiated Polymerization: Advances, Challenges, and Opportunities[J]. Macromolecules, 2010,43(15):6245-6260.
[14] 吴明军,李关江. 有机硅改性环氧树脂的研究进展[J]. 化工新型材料,2011,39(1):32-35.
[15] 赵培仲,黄旭仁,李艳丽,等. 补片尺寸对胶层应力分布的影响[J]. 玻璃钢/复合材料,2012,(6): 18-22.
[16] 黄旭仁,赵培仲,魏华凯,等. 单面和双面复合材料粘接修理结构中胶层的应力分析[J]. 粘接,2013,(3):52-55.