石油化工2024，Vol.53Issue(2)：188-194,7.DOI:10.3969/j.issn.1000-8144.2024.02.007
接枝共聚物对乙烯-乙烯醇共聚物/聚乙烯共混物结构及性能的影响
Effect of grafted copolymer on structure and properties of ethylene vinyl alcohol copolymer/low density polyethylene blends
摘要
Abstract
Blends consisting of ethylene vinyl alcohol copolymer(EVOH)and low density polyethylene(LDPE)were prepared by melt-mixing process.Polyethylene-g-maleic anhydride(PE-g-MAH)was utilized as compatibilizer to promote the dispersion of EVOH.The structure of the blends and the effect of PE-g-MAH on property of the blends were analyzed by DSC,SEM,mechanical property test and barrier property test.The experimental results indicate that LDPE and EVOH are immiscible and the EVOH particles are dispersed evenly in the LDPE matrix.The addition of PE-g-MAH can significantly improve the dispersibility of EVOH,significantly reduce the crystallization temperature of EVOH,and further enhance the strength of EVOH/LDPE blends and their barrier properties against a class of terpenoids.In addition,when the EVOH content is 10% (w),the barrier property of EVOH/LDPE blends is enhanced greatly comparing with that of LDPE,and then there is no apparent change furtherly upon the increase of EVOH content.关键词
乙烯-乙烯醇共聚物/低密度聚乙烯/马来酸酐接枝聚乙烯/阻隔性能Key words
ethylene-vinyl alcohol copolymer/low density polyethylene/polyethylene-g-maleic anhydride/barrier property分类
化学化工引用本文复制引用
刘宣伯,陆赵峻,苏萃,姚雪容,张龙贵,张韬毅..接枝共聚物对乙烯-乙烯醇共聚物/聚乙烯共混物结构及性能的影响[J].石油化工,2024,53(2):188-194,7.基金项目
中国石化科技开发项目(420047-3). （420047-3）
