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In situ and real-time optical investigation of nitrogen plasma treatment of polycarbonate

机译:聚碳酸酯氮等离子体原位和实时光学研究

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摘要

Polycarbonates are very attractive polymeric materials with extensive applications in optical technology as well as for replacing conventional rigid substrates, such as glass. The use of plasma treatments has been successfully employed for improving their surface properties and increasing adhesion of subsequent functional coatings. The objective of this study is to employ in situ and real-time Fourier transform infrared spectroscopic ellipsometry for a detailed investigation of the effect of nitrogen plasma treatment using a pulsed DC voltage, on the optical properties of polycarbonates. Measurements taken before, during and after plasma treatment showed the formation of a surface overlayer in which macromolecular chain scission takes place. The evolution of the overlayer thickness and its bonding has been investigated in detail. Also, the study of the surface nano-topography of polycarbonates by atomic force microscopy showed that plasma treatment increases the surface roughness.
机译:聚碳酸酯是非常吸引人的聚合材料,在光学技术中具有广泛的应用,并且可以替代常规的刚性基材,例如玻璃。已经成功地采用等离子体处理来改善其表面性能并增加后续功能涂层的附着力。这项研究的目的是采用原位和实时傅里叶变换红外光谱椭圆仪,对使用脉冲直流电压进行氮等离子体处理对聚碳酸酯的光学性能的影响进行详细研究。在等离子体处理之前,期间和之后进行的测量表明,形成了发生大分子链断裂的表面覆盖层。已经详细研究了覆盖层厚度的演变及其结合。另外,通过原子力显微镜对聚碳酸酯的表面纳米形貌的研究表明,等离子体处理增加了表面粗糙度。

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