Surface treatment of micron silver flakes with coupling agents for high-performance electrically conductive adhesives

被引：3
|
作者：
Zhang, Weiwei [1 ,2 ]
Wang, Jintao [1 ,2 ]
Liu, Hao [1 ,5 ]
Zhang, Zheng [1 ,2 ]
Wang, Jianqiang [1 ,2 ]
Zhang, Luobin [1 ,2 ]
Wang, Haozhong [1 ,2 ,4 ]
Wang, Fengyi [1 ,2 ]
Duan, Fangcheng [1 ,2 ]
Liu, Jiahao [4 ]
Li, Mingyu [1 ,2 ]
Hang, Chunjin [3 ]
Chen, Hongtao [1 ,2 ]
机构：
[1] Harbin Inst Technol Shenzhen, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
[2] Harbin Inst Technol Shenzhen, Sauvage Lab Smart Mat, Shenzhen 518055, Peoples R China
[3] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China
[4] China Elect Prod Reliabil & Environm Testing Res, Guangzhou 510610, Peoples R China
[5] Beijing Santel Technol & Trading Corp, Beijing 100039, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES | 2023年 / 122卷
关键词：
Electrically conductive adhesives; Coupling agents; Bulk resistivity; Shear strength; Rheology; GRAPHENE OXIDE; THERMAL-PROPERTIES; NANOPARTICLES; RELIABILITY; ALUMINUM; RESIN;
D O I：
10.1016/j.ijadhadh.2022.103300
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Coupling agents are widely used in order to improve the properties of electrically conductive adhesives (ECAs). The effects of different coupling agents on the characteristics of epoxy-based ECAs were investigated in terms of thermal, rheological, electrical and mechanical properties. Results showed that the ECAs had favourable flow, adhesion and good conductivity. In particular, the ECAs filled with Ag flakes treated with the silane coupling agent 3-aminpropyltriethoxysilane (KH-550) exhibited the lowest electrical resistivity (5.22 x 10-4 omega cm) and the highest shear strength (20.32 MPa) among the ECAs. Besides, it had the minimum viscosity 154 Pa s at 5 rpm/25 degrees C. It was also found that the adding of coupling agents had different effects on the aging electrical and shear strength of the ECAs. According to this study, the use of KH-550 had a significant electrical conductivity improvement and shear strength increase before and after aging. In addition, a strong adhesion/bonding between the conductive fillers and the resin matrix was revealed by scanning electron microscopy studies.
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页数：9
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