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Manufacturing and characterization of polyether ether ketone/methyl phenyl polysiloxane composite coatings

机译：聚醚醚酮/甲基苯基聚硅氧烷复合涂料的制备与表征

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摘要

In this work, manufacturing and characterization of single- and multilayer polyether ether ketone (PEEK)-reinforced coatings were investigated. Hybrid composites of thermoplastic reinforcing agents in a thermoset resin was, therefore, achieved by dispersing large PEEK particles (approximate to 85 m diameter) in methyl phenyl polysiloxane (MPP). First, mechanism of formation of the polymeric networks during MPP curing at different temperatures (250-400 degrees C) was analyzed. The different arrangements of the PEEK powders inside the cross-linked network of the MPP resin were, thus, disclosed. Second, the effect of process parameters on visual appearance, morphological features, and mechanical response of the composite coatings was evaluated by contact gauge profilometry, scanning electron microscopy, IR spectrometry, and microscratch indentations. Moderate temperature curing (250 degrees C>T>300 degrees C) of the composite coatings led to polysiloxane resins harder, well adhered on the metal and able to retain better the PEEK reinforce. Further increase in curing temperature (350 and 400 degrees C) might embrittle the polysiloxane resin, with the PEEK powders in it partially attenuating the loss of properties of the composite coating. (c) 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43609.
机译：在这项工作中，研究了单层和多层聚醚醚酮（PEEK）增强涂层的制造和表征。因此，通过将大的PEEK颗粒（直径约85 m）分散在甲基苯基聚硅氧烷（MPP）中，可以实现热塑性增强剂在热固性树脂中的杂化复合材料。首先，分析了在不同温度（250-400摄氏度）下MPP固化过程中聚合物网络的形成机理。因此，公开了PEEK粉末在MPP树脂的交联网络内的不同布置。第二，通过接触规轮廓仪，扫描电子显微镜，IR光谱和微划痕压痕评价工艺参数对复合涂层的视觉外观，形态特征和机械响应的影响。复合涂层的适度温度固化（250摄氏度> T> 300摄氏度）导致聚硅氧烷树脂更硬，在金属上具有良好的附着力并能够更好地保留PEEK增强材料。进一步提高固化温度（350和400摄氏度）可能会使聚硅氧烷树脂变脆，其中的PEEK粉末会部分减弱复合涂层的性能损失。 （c）2016 Wiley Periodicals，Inc. J. Appl。 Polym。科学2016，133，43609。

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