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首页> 外文期刊>The Journal of Adhesion >Laser Surface Pre-Treatment of CFRP for Adhesive Bonding in Consideration of the Absorption Behaviour
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Laser Surface Pre-Treatment of CFRP for Adhesive Bonding in Consideration of the Absorption Behaviour

机译:考虑吸收行为的CFRP激光表面预处理,用于粘接

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摘要

The use of carbon fibre-reinforced plastics (CFRP) is growing significantly in all areas of lightweight construction. Thermosets like epoxy still build a major part of deployed matrix material. A suitable joining technology for CFRP is adhesive bonding. However, the bonding performance is well reduced because of contaminations. To achieve full bond-strength, adhesion of the adhesive to the components is essential. One innovative method for surface pre-treatment is laser radiation. Former investigations show that an important parameter is the absorption. As a result of that, a UV laser (wavelength of 355 nm) and a CO2 laser (wavelength of 10600 nm) were used to pre-treat specimens manufactured from 120°C curing epoxy. The focus is to achieve a selective removal of resin without impairing the fibres. Lap-shear specimens have been pre-treated, bonded with an one component epoxy film adhesive and tested. The laser pre-treated specimens achieve the same bond strength as references prepared by manual abrading. Furthermore, the mechanisms of interaction between laser radiation and matrix material as well as fibres are discussed considering the different heat deposit and absorption behaviour of the emitted radiations.View full textDownload full textKEYWORDSAdhesive bonding, CFRP, Laser radiation, Surface pre-treatmentRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/00218464.2012.660042
机译:在轻型建筑的所有领域,碳纤维增强塑料(CFRP)的使用正在显着增长。像环氧树脂这样的热固性材料仍构成已部署基体材料的主要部分。 CFRP的合适连接技术是粘合剂粘结。但是,由于污染,粘结性能会大大降低。为了获得充分的粘合强度,粘合剂对组件的粘合至关重要。表面预处理的一种创新方法是激光辐射。以前的研究表明,吸收是一个重要的参数。结果,使用了UV激光(波长355 nm)和CO 2 激光(波长10600 nm)对由120°C固化环氧树脂制成的样品进行预处理。重点是在不损害纤维的情况下选择性去除树脂。搭接剪切试样已经过预处理,用一种成分的环氧薄膜胶粘剂粘合并进行了测试。经激光预处理的样品具有与通过手工研磨制备的参考相同的粘结强度。此外,还考虑了所发射辐射的不同热沉积和吸收行为,讨论了激光辐射与基体材料以及纤维之间的相互作用机理。查看全文下载全文关键词粘合粘结,CFRP,激光辐射,表面预处理{ui_cobrand:“ Taylor&Francis Online”,servicescompact:“ citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,更多”,发布:“ ra-4dff56cd6bb1830b”};添加到候选列表链接永久链接http://dx.doi.org/10.1080/00218464.2012.660042

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