The effect of UV radiation from oxygen and argon plasma on the adhesion of organosilicon coatings on polypropylene
The effect of UV radiation from oxygen and argon plasma on the adhesion of organosilicon coatings on polypropylene
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DOI：
10.1088/1361-6463/50/1/015201
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发表时间：
2017-01-11
影响因子：
3.4
通讯作者：
Dahlmann, R.
中科院分区：
文献类型：
--
作者：
Jaritz, M.;Behm, H.;Dahlmann, R.
氧和氩预处理等离子体的紫外线（UV）辐射对塑料基材的影响尚未完全了解。特别是，其对粘附性能的影响迄今尚未得到充分研究。本文通过比较氧和氩等离子体预处理和相同等离子体发射的紫外辐射预处理后聚丙烯（PP）上的等离子体聚合硅有机涂层（SiOxCyHz）的结合强度来解决这个问题。通过氟化镁（MgF2）滤光片将UV辐射与来自等离子体的其他物质隔离。可以表明，源自氧等离子体的UV辐射对基材表面化学和涂层附着力具有显著影响。通过用脉冲氧等离子体或仅用来自该氧等离子体的UV辐射预处理聚丙烯表面，可以达到相同的最大粘合强度增强。此外，类似的表面化学和地形修改诱导。对于氩等离子体，在本研究中没有观察到其UV辐射对衬底的显著影响。
The influence of ultraviolet (UV) radiation from oxygen and argon pretreatment plasmas on a plastic substrate has not been fully understood yet. In particular, its influence on the adhesion properties has not been sufficiently researched so far. This paper addresses this issue by comparing the bond strength of a plasmapolymerized silicon organic coating (SiOxCyHz) on polypropylene (PP) after oxygen and argon plasma pretreatment and pretreatment by UV radiation emitted by the same plasmas. The UV radiation is isolated from the other species from the plasma by means of a magnesium fluoride (MgF2) optical filter. It could be shown that UV radiation originating from an oxygen plasma has a significant impact on both substrate surface chemistry and coating adhesion. The same maximum bond strength enhancement can be reached by pretreating the polypropylene surface either with pulsed oxygen plasma, or with only the UV radiation from this oxygen plasma. Also, similar surface chemistry and topography modifications are induced. For argon plasma no significant influence of its UV radiation on the substrate could be observed in this study.