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首页> 外文期刊>Journal of Coating Technology >Examination of the Distribution of TPO Adhesion Promoter Material in a Painted TPO System
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Examination of the Distribution of TPO Adhesion Promoter Material in a Painted TPO System

机译：涂漆TPO系统中TPO附着力促进剂材料的分布检查

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The adhesion of organic coatings to polyolefin substrates is strongly dependent upon the type of surface treatment the thermoplastic material receives prior to painting. One such treatment involves the application of a thin layer (7-14 micron) of an adhesion promoting primer that is comprised of a chlorinated polyolefin polymer. Although materials of this type are known to establish good adhesion between the thermoplastics olefin (TPO) and subsequent paint layers, the mechanism of adhesion promotion is not unequivocally known. Current hypotheses suggest that adhesion is established through the diffusion and subsequent molecular entanglement of the chlorinated polyolefin material into the "top surface" of the TPO. In this paper, we will report on both fluorescent microscopy and image time-of-flight secondary ion mass spectrometry (TOF-SIMS) studies that examine the diffusion of adhesion promoter materials into the TPO substrate. The two complementary experimental techniques have been used to relate effects of adhesion promoter molecular weight distribution on their diffusion into the TPO substrates and the subsequent effect of this diffusion on the adhesion robustness of the painted system.
机译：有机涂料对聚烯烃基材的附着力在很大程度上取决于热塑性材料在涂漆之前接受的表面处理类型。一种这样的处理涉及施加由氯化聚烯烃聚合物组成的增粘底漆的薄层（7-14微米）。尽管已知这种类型的材料在热塑性烯烃（TPO）和随后的涂料层之间建立良好的粘合性，但是对粘合性的促进机制却并非一无所知。当前的假设表明，粘附力是通过将氯化聚烯烃材料扩散并随后分子缠结到TPO的“顶表面”中而建立的。在本文中，我们将报告荧光显微镜和图像飞行时间二次离子质谱（TOF-SIMS）研究，以研究增粘剂材料在TPO基材中的扩散。两种互补的实验技术已被用来关联增粘剂分子量分布对其扩散到TPO基材中的影响以及这种扩散对涂漆系统的附着力的影响。

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