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超疏水表面改性可以提高聚碳酸酯(PC)的实用性能。采用氧气等离子体刻蚀的方法对PC基片表面进行处理结合表面沉积疏水性涂层制备了超疏水表面。利用原子力显微镜、X射线光电子能谱仪和傅里叶变换红外光谱仪对制备过程中PC基片的表面形貌结构和表面化学成分的变化进行了表征。超疏水PC基片表面进行磨损实验后,发现磨损基片表面丧失了超疏水的特性。分析了磨损后PC基片的表面形貌和表面化学组成,表明失效的原因与基片表面形貌以及疏水性涂层的破坏有关。
Superhydrophobic surface modification can improve the practical properties of polycarbonate (PC). A superhydrophobic surface was prepared by treating the surface of a PC substrate by oxygen plasma etching in combination with depositing a hydrophobic coating on the surface. Atomic force microscope, X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy were used to characterize the surface morphology and chemical composition of the PC substrate. Superhydrophobic PC substrate surface wear test, found that the surface of the substrate loss of super absorbent hydrophobic properties. The surface morphology and surface chemical composition of the PC substrate after wear were analyzed. The reason of the failure was related to the surface morphology of the substrate and the destruction of the hydrophobic coating.