蓖麻油的改性及其在聚氨酯电子灌封胶中的应用研究  

Modification of castor oil and its application in polyurethane electronic potting adhesive

作　　者：金伟 杨润苗[1,2] 沈鑫 殷争艳 JIN Wei;YANG Runmiao;SHEN Xin;YIN Zhengyan(School of Chemical Engineering,Jiangsu University of Technology,Changzhou 213001,China;Wuxi Dongrun Electronic Material Technology Co.,Ltd.,Wuxi 214164,China)

机构地区：[1]江苏理工学院化学化工学院,江苏常州213001 [2]无锡东润电子材料科技有限公司,江苏无锡214164

出　　处：《江苏理工学院学报》2023年第2期105-113,共9页Journal of Jiangsu University of Technology

基　　金：江苏省产学研合作项目“低介损聚氨酯封装材料的制备技术研发”(BY2021129)。

摘　　要：以脱水蓖麻油、巯基乙醇和甘油为原料进行酯交换,制备出改性蓖麻油多元醇,然后将改性蓖麻油与异氰酸酯(PAPI)合成聚氨酯灌封胶,对改性蓖麻油不同占比制备的聚氨酯灌封胶进行热重和差示扫描量热分析,并进行拉伸力学性能和耐湿热性能测试。结果表明:当改性蓖麻油占比20%时,聚氨酯灌封胶拉伸强度达到7.4 MPa,断裂伸长率为55%,此时,聚氨酯电子灌封胶拥有良好的热稳定性和耐湿热性。In this paper,a modified castor oil polyol was prepared by transesterification of dehydrated castor oil,mercaptoethanol and glycerol.Then,the modified castor oil and isocyanate were used to synthesize polyurethane potting adhesive.The polyurethane potting adhesive prepared by different proportions of modified castor oil was subjected to thermogravimetric and differential scanning calorimetry analysis,and the tensile mechanical properties and heat resistance were tested.The results shown that the tensile strength of the polyurethane potting compound reached 7.4 MPa and the elongation at break reached 55%when the content of modified castor oil accounts for 20%.At this time,the polyurethane electronic potting adhesive contained good thermal stability and humidity resistance.

关 键 词：聚氨酯 电子灌封胶 蓖麻油 多元醇 封装材料 

分 类 号：TQ630[化学工程—精细化工]