GO-SHS/EP复合材料的力学和介电性能  

Mechanical and dielectric properties of GO-SHS/EP composites

作　　者：刘佳妮 刘伟[1] 孙桐 赵慧春 邓荔 姚江武 周宏[1,2] LIU Jia-ni;LIU Wei;SUN Tong;ZHAO Hui-chun;DENG Li;YAO Jiang-wu;ZHOU Hong(Harbin University of Science and TechnologySchool of Materials Science and Chemical Engineering,Ministry of Education,Harbin 150080,China;Harbin University of Science and Technology Key Laboratory of Engineering Dielectrics and Its Application,Ministry of Education,Harbin 150080,China;Academic Affairs Office of Harbin University,Harbin 150001,China)

机构地区：[1]哈尔滨理工大学材料科学与化学工程学院,黑龙江哈尔滨150080 [2]哈尔滨理工大学工程电介质及其应用教育部重点实验室,黑龙江哈尔滨150080 [3]哈尔滨学院教务处,黑龙江哈尔滨150001

出　　处：《化学工程师》2023年第2期77-80,共4页Chemical Engineer

基　　金：哈尔滨理工大学大学生创新项目(202110214185)。

摘　　要：本文采用改进的Hummer’s法制备氧化石墨烯(Graphene Oxide,GO),通过软模板法合成SiO2空心球(Silica Hollow Sphere,SHS),将SHS附着在改性GO表面制备GO-SHS复合物,随后将GO-SHS复合物引入环氧树脂(Epoxy,EP)基体中制备GO-SHS/EP复合材料。结果表明,在GO-SHS/EP复合材料的最佳冲击和弯曲强度达到14.8kJ·m^(-2)和112.3MPa,与纯EP相比,分别提高了196%和35.3%;在103Hz时,GO-SHS/EP复合材料介电常数和介电损耗分别为3.31和0.008。In this paper,Graphene Oxide(GO)was prepared with improved Hummer’s method,and Silica Hollow Sphere(SHS)was synthesized through soft template method.The GO-SHS hybrids were fabricated by attaching SHS to the modified GO surface,following which the epoxy matrix(EP)composites reinforced with GO-SHS hybrids were synthesized.The results showed that the impact and flexural strengths of GO-SHS/EP composites reached 14.8kJ·m^(-2)and 112.3MPa,which increased 196%and 35.3%,respectively,compared with pure EP.At10~3Hz,the dielectric constants and dielectric losses of GO-SHS/EP composites were 3.31 and 0.008,respectively.

关 键 词：环氧树脂 复合材料 力学性能 介电性能 

分 类 号：TB332[一般工业技术—材料科学与工程]