利用氩气/空气混合气体辉光放电对聚乙烯(PE)材料表面改性。主要研究了单一气体等离子体和混合气体等离子体对PE膜表面改性的影响,通过蒸馏水的接触角测量和二碘甲烷的接触角测量对处理前后的PE膜表面性质进行表征,对PE膜表面能的变化进行了分析。实验结果表明,经辉光放电等离子体处理过的PE膜表面的液体接触角显著下降,固体表面能有明显提高,在固定的电压和气压下,PE膜表面水接触角随着氩气/空气混合比例的增大而先减小后增大,说明辉光放电比丝状放电在提高聚乙烯材料润湿性方面效果要好。处理后的样品放置在空气当中后,样品表面水接触角有所增大,但始终小于处理前的接触角。 Polyethylene (PE) material was surface modified with argon / air mixed gas glow discharge. The effects of single gas plasma and mixed gas plasma on the surface modification of PE membrane were investigated. The surface properties of PE membrane before and after treatment were characterized by measuring the contact angle of distilled water and measuring the contact angle of methylene iodide, Energy changes were analyzed. The experimental results show that the surface contact angle of the PE film treated with glow discharge plasma is significantly decreased, and the surface energy of the solid surface is obviously improved. Under a fixed voltage and pressure, the contact angle of the surface of the PE film with the argon / air The mixing ratio increases and then decreases first and then increases, indicating that the glow discharge is better than the filamentous discharge in improving the wettability of the polyethylene material. After the sample was placed in the air, the water contact angle of sample surface increased, but it was always lower than the contact angle before treatment.