大豆油活性稀释剂制备及其对环氧树脂力学性能的影响  

Preparation of soybean oil reactive diluent and its effect on mechanical properties of epoxy resin

作　　者：张欣悦 杨名昭 李聪聪 苏宝珊 李欢欢[1] 高宝善 舒祖菊[1,2] ZHANG Xinyue;YANG Mingzhao;LI Congcong;SU Baoshan;LI Huanhuan;GAO Baoshan;SHU Zuju(School of Materials and Chemistry,Anhui Agricultural University,Hefei 230036,China;Anhui Engineering Research Center for Highly Functional Fiber Products for Automobiles,Hefei 230036,China)

机构地区：[1]安徽农业大学材料与化学学院,合肥230036 [2]安徽省汽车用高功能性纤维制品工程研究中心,合肥230036

出　　处：《中国塑料》2025年第2期67-71,共5页China Plastics

基　　金：安徽省自然科学基金面上项目(2008085MC84);安徽省大学生创新创业训练计划项目(S202210364158、S202210364168)。

摘　　要：以大豆油和异丁烯醇为原料,通过酯交换反应制备脂肪酸异丁烯酯(MO),再以间氯过氧苯甲酸为氧化剂,通过环氧化反应合成了一种高活性的大豆油基活性稀释剂(EMO),随后将EMO加入到环氧树脂中制备复合材料。探究酯交换反应时间、醇油比、催化剂占比以及反应温度对MO转化率的影响,以及EMO与环氧树脂的混合比例对复合材料弯曲性能的影响。结果表明:酯交换反应的最佳反应时间为20 min、醇油比7/1、催化剂占比0.6%(质量分数,下同)、反应温度70℃,此时,MO转化率达到96.56%;环氧树脂复合材料的弯曲强度随着EMO的增加先增加后减小,其中当加入10%的EMO时环氧树脂复合材料的弯曲强度最高,达到103.90 MPa;而弯曲模量随着EMO的增加呈现下降趋势,韧性则呈现增大趋势。In this study,the fatty acid isobutylene ester(MO)was prepared by using soybean oil and isobutylene as raw materials,and then a highly active soybean oil-based reactive diluent(EMO)was synthesized through an epoxidation re-action using m-chloroperoxybenzoic acid as an oxidant.Then,the resultant EMO was added to epoxy resin to prepare compounding materials.The effects of transesterification reaction time,alcohol-oil ratio,catalyst ratio and reaction tem-perature on the conversion rate of MO and the effects of EMO and epoxy resin mixing ratio on the flexural properties of the as-prepared compounding materials were investigated.The results indicated that the conversion rate of MO reached 96.56%at an optimal reaction time of 20 min for the transesterification reaction,a mass ratio of alcohol to oil of 7/1,a catalyst concentration of 0.6 wt%,and a reaction temperature of 70℃.The flexural strength of epoxy compounding ma-terials increased at first and then tended to decrease with an increase in the EMO content.The epoxy compounding mate-rials exhibited the highest flexural strength of 103.90 MPa at an EMO content of 10 wt%.Their flexural modulus de-creased with an increase in the EMO content,but their toughness tended to increase.

关 键 词：大豆油 酯交换 活性稀释剂 弯曲性能 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]