【摘要】 概述了聚丙烯发泡的机理、途径、工艺及聚丙烯发泡材料的应用，重点叙述了高熔体强度聚丙烯发泡、交联发泡、共混发泡三种发泡工艺及其国内外发展状况。更多还原

【Abstract】 The paper summarize the foaming mechanism and technical method of polypropylene materials;and particularly report three kinds of foaming technology such as high melt strength PP foaming,cross linked PP foaming and modification PP foaming,at the same time report their overseas and domestic development;finally describe the application of foamed PP.更多还原