EFFECT OF SURFACE TREATMENT ON ADHESIVELY BONDED REPAIR OF ALUMINUM

Abstract

Abstract: GFRP adhesive repaired damage aluminum, aluminum alloy surface was treated with different concentrations of the silane coupling agent KH550, KH560, and compared with non-treated aluminum sample. The repair effect was studied by tensile and humidity test. The results showed that two kinds of coupling agent KH550, KH560 have simular effect on repair sample. After treated with coupling agent of 1%~2% concentration, the repaired samples have a high initial strength and the heat-resistant properties are also improved. Humidity treatment has significant adverse effects on the mechanical properties, and the damage of hygrothermal environment for aluminum-layer interface is stronger than layer-GFRP interface. The decrease of adhesive strength between aluminum-layer interface is the main reason of sample performance degradation.

Key words: aluminum alloy, silane coupling agent, interface, adhesive bonded composite repair

CLC Number:

TB332

YU Zhou-hui, WAN Qi. EFFECT OF SURFACE TREATMENT ON ADHESIVELY BONDED REPAIR OF ALUMINUM[J]. Fiber Reinforced Plastics/Composites, 2017, 0(5): 62-67.

References

[1] Norris T, Saadatmanesh. Shear and flexural-strengthening of R/C beams with carbon fiber sheets[J]. Journal of Structure Engineering, 1997, 123(7): 903-911.
[2] Mosallam A, Mosallam M. Strengthening of two-ways concrete slabs with FRP composite laminates[J]. Construction and Building Materials, 2003, 17(1): 43-54.
[3] 岳清瑞, 杨勇新. 纤维增强复合材料加固结构耐久性研究综述[J]. 建筑结构学报, 2009(6): 8-16.
[4] 游敏, 郑小玲. 胶接强度分析及应用[M]. 武汉: 华中科技大学出版社, 2009.
[5] 任慧韬, 李杉, 高丹盈. 载荷和恶劣环境共同作用对CFRP-钢结构粘接性能的影响[J].土木工程学报, 2009, 42(03): 36-41.
[6] 李趁趁. FRP加固混凝土结构耐久性试验研究[D]. 大连: 大连理工大学, 2006.
[7] 任慧韬, 胡安妮, 姚谦峰. 湿热环境对FRP加固混凝土结构耐久性能的影响[J]. 哈尔滨工业大学学报, 2006, 38(11): 1996-1999.
[8] 张晓丰. 铝、镁合金表面氧化与粘接性能研究[D]. 北京: 北京化工大学博士论文, 2008.
[9] 张金生. 铝合金阳极氧化膜表面状态与粘接性能研究[D]. 北京: 北京化工大学博士论文, 2007.
[10] Papc P G, Plucddomann E P, Mittal K.L.ed. Silances and Other Coupling Agents[M]. The Nethelands VSP,1992: 105-116.
[11] T.F.Child, W.J. Van Ooij. Application of siliane technology to prevent corrosion of metals and improve paint sdhesion[J]. Tans IMF, 1999, 77(2): 64-70.
[12] W.J. Van Ooij, G.P. Sundarajan. Silane based pretreatments for automotive steels[J]. Surface Engineering, 2000,16(4): 315-320.
[13] 陆峰, VAN O W J. 铝合金表面硅烷处理后腐蚀性能的研究[J]. 材料工程, 1999(8): 12-17.
[14] 徐以兵. 铝合金和镁合金的表面硅烷化处理研究[D]. 长沙: 湖南大学博士论文, 2008.
[15] 许小芳, 申世杰. 硅烷偶联剂处理玻璃纤维对复合材料界面的影响[J]. 宇航材料工艺, 2010(3): 5-8.
[16] 王雪明. 硅烷偶联剂在金属预处理及有机涂层中的应用研究[D]. 济南: 山东大学硕士论文, 2005.