Effect of surface treatment on the durability of aluminium joints bonded with a butadiene-acrylonitrile-epoxide sealant

被引:9
作者
Comyn, J
Day, J
Shaw, SJ
机构
[1] De Montfort Univ, Dept Chem, Leicester LE1 9BH, Leics, England
[2] Def Evaluat & Res Agcy, Struct Mat Ctr, Farnborough GU14 0LX, Hants, England
关键词
sealants; aluminium and alloys; lap shear; durability;
D O I
10.1016/S0143-7496(99)00022-6
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A sealant made from a stoichiometric mixture of amine terminated butadiene-acrylonitrile copolymer and epoxide resin has been used to make single lap-joints in aluminium. These have been immersed in jet-fuel, water, antifreeze and an antifreeze-water mixture prior to testing. Strengths were much increased by pre-treating the metal by phosphoric acid anodization or with silane coupling agents. Joints were weakened in antifreeze but not in jet-fuel or antifreeze-water. In water weakening of joints with the silanes is accompanied by corrosion. Crown Copyright (C) 2000 Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:77 / 82
页数:6
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