接枝聚乙烯/GMS接枝SiO_(2)共混物的制备和性能  

Preparation and Properties of Grafted Polyethylene/GMS Grafted Modified SiO_(2) Blends

作　　者：褚明 张健夫 屈栎杭 李眉远 朱丹彤 李文斐[1,3] 姚占海 CHU Ming;ZHANG Jianfu;QU Lihang;LI Meiyuan;ZHU Dantong;LI Wenfei;YAO Zhanhai(School of Chemistry and Environmental Engineering,Changchun University of Science and Technology,Changchun 130022,China;State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China;Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry,Changchun 130022,China)

机构地区：[1]长春理工大学化学与环境工程学院,长春130022 [2]中国科学院长春应用化学研究所,高分子物理与化学国家重点实验室,长春130022 [3]吉林省光学材料与化学科技创新中心,长春130022

出　　处：《高等学校化学学报》2018年第12期2781-2788,共8页Chemical Journal of Chinese Universities

基　　金：国家重点研发计划项目(批准号:2016YFB0302401);国家自然科学基金(批准号:21504008);长春理工大学创新基金(批准号:XJJLG-2017-15)资助

摘　　要：合成了单硬脂酸丙烯酸甘油二酯(AGMS)和改性纳米SiO_2的接枝物(SiO_2-g-PAGMS),将AGMS、SiO_2-g-PAGMS、聚乙烯、接枝聚乙烯和改性纳米SiO_2等物质按比例挤出,吹膜. 60℃加速流滴实验结果表明,SiO_2-g-PAGMS与聚乙烯及接枝聚乙烯混合膜加速流滴期最高可达36 d,是同等条件下AGMS与聚乙烯及接枝聚乙烯混合膜的1. 50倍,是只添加SiO_2-g-PAGMS/聚乙烯膜的2. 25倍.接枝聚乙烯/SiO_2-g-PAGMS共混物在降低雾度的同时,结晶温度降低,熔融温度升高,膜拉伸强度变化小于11%.Dripping agricultural films can be obtained by adding dripping agents into the polymeric matrix,but the delaying and controlling migration of dripping agents is still challenging.Therefore,the graft of monostearic acid acrylic acid diglyceride(AGMS)and modified nano SiO2(SiO2-g-PAGMS)was prepared,and then the blend of AGMS,SiO2-g-PAGMS,polyethylene,grafted polyethylene,modified SiO2 were extruded in proportion and blown film.Acceleration dripping test at 60℃showed that the maximum dripping duration of the film with SiO2-g-PAGMS,polyethylene and grafted polyethylene compound could reach 36 d.Under the same conditions,it was 1.50 times and 2.25 times higher than the film of AGMS,polyethylene,grafted polyethylene compound,and SiO2-g-PAGMS/polyethylene,respectively.Other results showed that haze and crystallization temperature of the grafted polyethylene compound/SiO2-g-PAGMS blend decreased,while melting temperature increased,and the change of tensile strength of film was less than 11%.

关 键 词：纳米二氧化硅 接枝聚乙烯 单硬脂酸甘油酯 流滴 

分 类 号：O631[理学—高分子化学]