复合材料科学与工程Issue(12)：43-48,6.DOI:10.19936/j.cnki.2096-8000.20241228.006
联苯型环氧树脂强韧化TDE-85树脂体系的制备与性能
Preparation and properties of TDE-85 resin system strengthened and toughened by biphenyl epoxy resin
摘要
Abstract
Epoxy resin is widely used in coatings,electronic packaging materials and adhesives because of its strong adhesive strength and good thermal stability,but its high cross-linking density also brings the problem of brittleness and poor toughness,which has become the main factor restricting its development and application.A high performance epoxy resin(TDE-85)was modified by biphenyl epoxy resin 3,3′,5,5′-tetramethylbiphenyl bisphenol diglycidyl ether(TMBP)with 3,3′-diaminodiphenyl sulfone(3,3′-DDS)as curing agent by melt blending method.The mechanical properties of the modified resin system were studied.The results of polarizing mi-croscope and SEM showed that the liquid crystal structure could be well dispersed in the epoxy resin matrix and strengthened and toughened.The results show that when the TMBP content is 6wt%,the mechanical properties of the cured material are obviously improved,the impact strength and flexural strength are increased by 30%and 27%respectively,and the strength and toughness is obviously improved.When the TMBP content is 4wt%,the tensile strength and tensile modulus reach the maximum of 93.69 MPa and 5.39 GPa.关键词
环氧树脂/热性能/力学性能/共混改性/液晶结构/复合材料Key words
epoxy resin/thermal properties/mechanical properties/blending modification/liquid crystal structure/composites分类
通用工业技术引用本文复制引用
侯镇弘,陆奇,赵星诺,徐锦文,夏宏伟,张颂,侯锐钢,周权..联苯型环氧树脂强韧化TDE-85树脂体系的制备与性能[J].复合材料科学与工程,2024,(12):43-48,6.基金项目
中央高校基本科研业务费专项资金(JKD01231701) （JKD01231701）
