Plasma-based polypropylene surface modification method and surface modified polypropylene

The invention provides a plasma-based polypropylene surface modification method. A plasma technology is adopted to carry out surface modification treatment on polypropylene. Air plasma is creatively adopted for surface treatment of polypropylene, the surface roughness of polypropylene is obviously increased, the contact angle is reduced from 100 degrees to 60 degrees, the surface wetting tension is improved from 24 dynes. Cm to 64 dynes. Cm , and meanwhile oxygen-containing and nitrogen-containing groups are introduced into the surface of propylene. The method is safe, environmentally friendly, efficient, energy-saving, easy to operate and high in practicability, meanwhile, no medicine is used in the whole process, and the good market application prospect is achieved. 本发明提供了一种基于等离子体的聚丙烯表面改性方法，采用等离子技术对聚丙烯进行表面改性处理。本发明创造性的采用空气等离子体对聚丙烯进行表面处理，聚丙烯表面粗糙度明显增加，接触角从100°减小到60°，表面润湿张力从24dynes.cm-1提高到64dynes.cm-1，同时，丙烯表面引入了含氧和含氮基团。该方法安全环保、高效节能，操作简单，可实施性强，同时，全程不使用任何药品，具有较好的市场应用前景。