一、前言在阻隔包装材料的研究中，合理开发利用高阻隔型聚合物是行之有效的途径。这些聚合物由于其分子结构的特点，致密性高，能有效防止气体的渗透。用其作阻隔层与其它材料复合化，综合性能好，特别是透氧率极低，应用于食品等方面的包装，能大大延长贮存货贺寿命。聚乙烯 I. Introduction In the study of barrier packaging materials, rational development and utilization of high barrier polymer is an effective way. Due to their molecular structure, these polymers are highly dense and effectively prevent gas permeation. With its barrier layer and other materials composite, good overall performance, especially low oxygen permeability, used in food packaging, can greatly extend the storage life of goods congratulation. Polyethylene