KH-570改性纳米二氧化硅对大豆油基UV固化涂膜性能的影响  

Effect of nano-SiO2 modified by KH-570 on properties of thesoybean oil-based UV curing film

作　　者：白家振 洪勇波 王亚红 王念贵[1] BAI Jiazhen;HONG Yongbo;WANG Yahong;WANG Niangui(College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China)

机构地区：[1]湖北大学化学化工学院,湖北武汉430062

出　　处：《湖北大学学报（自然科学版）》2021年第1期63-66,73,共5页Journal of Hubei University：Natural Science

摘　　要：用KH-570改性的纳米二氧化硅、丙烯酸化环氧大豆油、衣康酸二甲基丙烯酸缩水甘油酯和1-羟基环己基苯甲酮反应,成功制备出纳米二氧化硅改性的丙烯酸化环氧大豆油UV固化膜,探讨了KH-570改性纳米二氧化硅加入量对丙烯酸化环氧大豆油UV固化膜性能的影响.结果表明,随着改性纳米二氧化硅含量的增加,膜的拉伸强度、柔韧性和热稳定性先变好后变差.当KH-570改性纳米二氧化硅的质量分数是1.5%时,均匀分散在高分子链之间的纳米颗粒具有消光和增韧的作用,对UV固化膜的热稳定性也具有促进作用.The acrylated epoxy soybean oil UV-cured film was prepared by nano-silica modified by KH-570,acrylated epoxidized soybean oil,itaconic acid glycidyl dimethacrylate and 1-hydroxycyclohexyl benzophenone,and the effect of KH-570 modified nano-silica on the properties of UV-cured film of acrylated epoxidized soybean oil was investigated.The results show that with the increase of the content of modified nano-silica,the tensile strength,flexibility and thermal stability of the film become better first and then worse.When the content of the KH-570 modified nano-silica is 1.5%,the nanoparticles uniformly disperse between the polymer chains have a matting and toughening effect,and also promote the thermal stability of the UV-cured film.

关 键 词：纳米二氧化硅 大豆油 UV固化膜 改性 消光 增韧 热稳定性 

分 类 号：TQ317.4[化学工程—高聚物工业]