The polypropylene membrane was submitted to ammonia gas plasma.The chemical compositon of the modified membrane was investigated by X-ray photoelectron spectroscopy(XPS).

• 用氨等离子体技术处理聚丙烯膜表面，并用X射线光电子能谐（XPS）测定了膜表面的元素组成，相对含量和表面功能团的类型。