摘要
本研究采用不同含氧气体的射频电容耦合辉光放电冷等离子体,处理弱极性的聚烯烃塑料,在聚烯烃大分子结构上引入极性含氧基团,以增加塑料对磁粉的亲合力,实验证明:等离子体处理聚烯烃表面是改善聚烯烃表面极性的有效方法。这对拓宽塑磁粘结剂的选择范围,应用价兼量大的聚烯烃塑料更有特殊的现实意义;用不同等离子体处理聚丙烯的结果表明,以乙醇低气压等离子体效果较好;等离子体处理不仅能改善塑料的混炼性,也可增进塑料磁体的成型加工性能,从而提高塑磁整体材料的全面性能。
In the present study,we use rf glow-discharge plasma of different gases to treat polyolefin with weak polarity,oxygen-containing radicals are lead into the structure of polyolefin macromolecule resulting in incresing the affi- nity of polymer for maghet powders and improving compa tibility of polymer with magner powders.From experimeur,it has been found that the treatment of surface polyolefin by using the plasma is one of the effective methods impov- ing surface polarity of polyolefin.It has the special realisticmeaning in ext- ending the choosing range of adhesive agents of plastic magnet and using che- eper and enormous polyolefin.Atmong several rlasma of different gases used to treat poly propylene(PP)the ethonal plasma possesses a better effect.pla- sma treatmemt not only ean improve the mixing property of polymer,but also can increase shaping and processing features resulting in increase in comp- rehensive properties of plastic magnet.
