作　　者： ; ; ; ; ; ; ;

机构地区： 中国石油天然气集团公司

出　　处： 《弹性体》 2010年第1期74-76,共3页

摘　　要： 通过凝胶渗透色谱、差示扫描量热、力学性能、X射线衍射和流变仪等分析手段,研究了国产和进口薄膜级高密度聚乙烯的结构和加工性能。结果表明,进口的膜料相对分子质量呈现双峰分布,具有良好的力学性能和加工性能;国内产品以单峰产品为主,综合性能与进口产品有一定的差距。 Structural characteristics and processibility of domestic and import HDPE film grade materials were studied by means of gel permeation chromatography, differential scanning calorimetry, mechanical,X-ray diffraction and rheometer. The results showed that the relative molecular weight appearing as bimodal distribution of the import HDPE had good mechanical properties and processibility, the relative molecular weight of the lcoal HDPE film grade materials mainly appearied as unimodal distribution and the comprehensive properties of these were less than those of the import HDPE.

关 键 词： 聚乙烯 薄膜 结构和性能 加工性

领　　域： [化学工程]