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首页> 外文期刊>Materials & design >Effect of surface treatment on the interfacial adhesion performance of aluminum foil/CFRP laminates for cryogenic propellant tanks
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Effect of surface treatment on the interfacial adhesion performance of aluminum foil/CFRP laminates for cryogenic propellant tanks

机译：表面处理对低温推进剂罐铝箔/ CFRP层压板界面粘合性能的影响

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In this study, an aluminum foil with a thickness of 0.08 mm was inserted between plies of carbon fiber reinforced polymer (CFRP) composites to manufacture Al foil/CFRP laminates. Two kinds of surface treatments, including corrosion method with NaOH or H2SO4/CrO3 solution and addition of flexible layer composed of polyether triamine, were carried out successively on the surface of Al foil to improve the interfacial adhesion strength between Al foil and CFRP under cryogenic cycles. The results showed that, both corrosion methods could improve the interfacial adhesion strength between Al foil and CFRP obviously. The flexible layer applied was verified to be bonded to the surface of Al foil via O-Al center dot center dot center dot N and Al-OH center dot center dot center dot N. The interfacial adhesion performance of Al foil/CFRP laminates after cryogenic cycles improved significantly attributable to the surface treatments applied, which indicated that the flexible layer could adjust the thermal expansion coefficient mismatch between Al foil and CFRP as expected. Furthermore, the Al foil/CFRP laminates exhibit excellent gas barrier property, which is about 15 times higher than that of CFRP laminates. Consequently, the Al foil/CFRP laminates have great potential as cryogenic propellant tank material for aerospace craft. (C) 2016 Elsevier Ltd. All rights reserved.
机译：在这项研究中，将厚度为0.08毫米的铝箔插入碳纤维增强聚合物（CFRP）复合材料层之间，以制造Al箔/ CFRP层压板。在铝箔的表面连续进行了两种表面处理，包括用NaOH或H2SO4 / CrO3溶液的腐蚀方法以及添加由聚醚三胺组成的柔性层，以提高低温循环下铝箔与CFRP之间的界面粘合强度。 。结果表明，两种腐蚀方法均可明显提高铝箔与CFRP的界面粘结强度。验证所施加的柔性层是否通过O-Al中心点中心点中心点N和Al-OH中心点中心点中心点N粘结到Al箔的表面。低温后，Al箔/ CFRP层压板的界面粘合性能循环的显着改善归因于所应用的表面处理，这表明柔性层可以按预期调整Al箔和CFRP之间的热膨胀系数失配。此外，Al箔/ CFRP层压板表现出优异的阻气性，其比CFRP层压板高约15倍。因此，铝箔/ CFRP层压板作为航空航天器的低温推进剂罐材料具有巨大的潜力。 （C）2016 Elsevier Ltd.保留所有权利。

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