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Bond properties of rubber modified epoxy

机译:橡胶改性环氧树脂的粘结性能

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摘要

In this paper, the bond integrity of unmodified and rubber-modified epoxy used for bonding the carbon fibre sheets to the hosting steel surface was investigated. The rigidity of the bonding agent is one of the factors that have a significant role in the premature failure (debonding) of this application. In order to overcome this issue, a series of experiments were conducted on the steel plates using the epoxy resin modified by CTBN and ATBN reactive liquid polymers, in addition to the unmodified epoxy resin. The interface between the carbon fibre matrix and the hosting surface is subjected to a longitudinal shear force for which the corresponding displacement is recorded. The shear stress-strain relationship for the tested specimen is plotted. The result shows that, the bond behaviour of modified epoxy using CTBN and ATBN reactive liquid polymers was improved in terms of ductility and toughness.
机译:在本文中,研究了用于将碳纤维板粘结到主体钢表面的未改性和橡胶改性的环氧树脂的粘结完整性。粘合剂的刚性是在该应用的过早失效(脱粘)中具有重要作用的因素之一。为了克服这个问题,除了未经改性的环氧树脂外,还使用由CTBN和ATBN反应性液态聚合物改性的环氧树脂在钢板上进行了一系列实验。碳纤维基体和主体表面之间的界面受到纵向剪切力,为此记录了相应的位移。绘制了测试样品的剪切应力-应变关系。结果表明,在延展性和韧性方面,使用CTBN和ATBN反应性液态聚合物的改性环氧树脂的粘结行为得到了改善。

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