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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Adhesion enhancement of polymer surfaces by atmospheric plasma treatment
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Adhesion enhancement of polymer surfaces by atmospheric plasma treatment

机译：通过大气等离子体处理增强聚合物表面的附着力

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An atmospheric pressure non-equilibrium plasma (APNEP) developed in the UK by EA Technology Ltd is currently being investigated in collaboration with the University of Surrey. Of the many applications of surface modification that can be induced using plasmas, adhesion enhancement is one of the most commercially important. In this paper, we illustrate the use of an atmospheric plasma to enhance the adhesion characteristics of low-density polyethylene (LDPE) and poly(ethylene terephthalate) (PET). The polymers were treated in the remote afterglow region of an atmospheric pressure plasma to avoid the thermal effects that can cause degradation for thermally sensitive materials when placed in direct contact with the plasma. Reactive (oxygen containing) and inert (oxygen free) atmospheric plasmas rapidly impart adhesion enhancement by a factor of two to ten as measured by 180 degrees peel tests. However, extended exposure to the atmospheric plasma does not impart additional adhesion enhancement as the surface is ablated revealing the underlying polymer with poor adhesive characteristics. In contrast, vacuum plasma treated LDPE and PET show increased adhesion with extended plasma treatment. An adhesion enhancement in excess of two to three orders of magnitude was found to be achievable for vacuum plasma treatment times greater than 10 min. [References: 39]
机译：EA Technology Ltd在英国开发的大气压非平衡等离子体（APNEP）目前正在与萨里大学合作进行研究。在可以使用等离子体诱导的表面改性的许多应用中，粘合力的增强是最重要的商业用途之一。在本文中，我们说明了使用大气等离子体来增强低密度聚乙烯（LDPE）和聚对苯二甲酸乙二醇酯（PET）的粘合特性。在大气压等离子体的遥远余辉区域中对聚合物进行了处理，以避免当与等离子体直接接触时可能引起热敏材料降解的热效应。反应性（含氧）和惰性（无氧）的大气等离子体可通过180度剥离测试迅速将粘合力提高2到10倍。但是，长时间暴露在大气等离子体中并不能带来额外的附着力增强，因为表面被烧蚀了，从而显示出底层聚合物的粘合特性差。相反，真空等离子体处理的LDPE和PET在延长的等离子体处理下显示出增加的附着力。对于大于10分钟的真空等离子体处理时间，发现可以实现超过2到3个数量级的粘合增强。 [参考：39]

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