涂覆级聚乙烯的加工性能研究

Study on the Processability of Coating Polyethylene

优选国内外几种优质的涂覆级LDPE专用料,对其分子结构及加工性能进行了研究,结果表明,分子结构直接影响制品的加工性能,分子结构中的链支化较高及高相对分子质量较多的1C7A和19N430比18G和LA-0710缩幅小,但最高加工速率差。

Several kinds of coating polyethylene with good properties were selected. Their structures and processability were investigated. The result showed that the structure of polyethylene had direct effects on the processability of the products. Polymer such as 1C7A and 19N430 with higher branch degree and higher content of high molecular weight polymer had less shrinkage and lower processing rate than polymers such as 18 G and LA -0710.