Crystal Form Modification and Void Formation of Polypropylene during Stretching

摘要：

IntroductionIsotactic polypropylene (i-PP) is a widely used semi-crystalline polymer.The crystal structure and morphology can be modified with nucleating agent.β form crystal has the properties of void formation during stretching, which is of widely used in microporous film, high impact components etc.. The use of β nucleating agent is the most common way to form high beta form crystal.In this paper, high β content precursor sheet is prepared and high porosity mieroporous film is obtained during stretching.The relationship between the crystal structure and morphology and porosity of microporous film is discussed in detail and the industrial scale production is also introduced.

作者: Lin Li

作者单位: State Key Laboratory of Polymer Physics and Chemistry,Institute of Chemistry,Chinese Academy of Sciences,Beijing (100190),China

会议类型: 国际会议

会议名称: 5th International Symposium on High-Tech Polymer Materials(HTPM-V)(第五届国际高技术高分子材料学术会议)

会议地点: 北京

会议语种:英文

页码: 154

在线出版日期: 2008-10-27（万方平台首次上网日期，不代表论文的发表时间）