为研究大气压介质阻挡放电空气等离子体对聚合物绝缘材料表面自由能的影响,采用介质阻挡放电对聚丙烯进行了表面改性.通过测量接触角计算了表面能,并采用X射线光电子能谱分析了处理前后材料表面化学成分的变化.结果表明:处理后聚丙烯表面测试液体接触角随放电功率、处理时间和放电峰值电压的增加而下降,而表面自由能变化量随之增加而增加.
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