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

Weiwei Zhang; Jintao Wang; Hao Liu; Zheng Zhang; Jianqiang Wang; Luobin Zhang; Haozhong Wang; Fengyi Wang; Fangcheng Duan; Jiahao Liu; Mingyu Li; Chunjin Hang; Hongtao Chen

doi:10.1016/j.ijadhadh.2022.103300

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

Weiwei Zhang
, Jintao Wang
, Hao Liu
, Zheng Zhang
, Jianqiang Wang
, Luobin Zhang
, Haozhong Wang
, Fengyi Wang
, Fangcheng Duan
, Jiahao Liu
, Mingyu Li
, Chunjin Hang^*
, Hongtao Chen^*

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology (Shenzhen)
Harbin Institute of Technology Shenzhen
Beijing SanTel Technology & Trading Corp.
China Electronic Product Reliability and Environmental Testing Research Institute

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

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 × 10⁻⁴ Ω 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 °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.

Original language	English
Article number	103300
Journal	International Journal of Adhesion and Adhesives
Volume	122
DOIs	https://doi.org/10.1016/j.ijadhadh.2022.103300
State	Published - Feb 2023

Keywords

Bulk resistivity
Coupling agents
Electrically conductive adhesives
Rheology
Shear strength

Access to Document

10.1016/j.ijadhadh.2022.103300

Cite this

Zhang, W., Wang, J., Liu, H., Zhang, Z., Wang, J., Zhang, L., Wang, H., Wang, F., Duan, F., Liu, J., Li, M., Hang, C., & Chen, H. (2023). Surface treatment of micron silver flakes with coupling agents for high-performance electrically conductive adhesives. International Journal of Adhesion and Adhesives, 122, Article 103300. https://doi.org/10.1016/j.ijadhadh.2022.103300

@article{d80c60a837c84dad93be9da7f9962a3b,

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

abstract = "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 × 10−4 Ω 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 °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.",

keywords = "Bulk resistivity, Coupling agents, Electrically conductive adhesives, Rheology, Shear strength",

author = "Weiwei Zhang and Jintao Wang and Hao Liu and Zheng Zhang and Jianqiang Wang and Luobin Zhang and Haozhong Wang and Fengyi Wang and Fangcheng Duan and Jiahao Liu and Mingyu Li and Chunjin Hang and Hongtao Chen",

note = "Publisher Copyright: {\textcopyright} 2022",

year = "2023",

month = feb,

doi = "10.1016/j.ijadhadh.2022.103300",

language = "英语",

volume = "122",

journal = "International Journal of Adhesion and Adhesives",

issn = "0143-7496",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Surface treatment of micron silver flakes with coupling agents for high-performance electrically conductive adhesives

AU - Zhang, Weiwei

AU - Wang, Jintao

AU - Liu, Hao

AU - Zhang, Zheng

AU - Wang, Jianqiang

AU - Zhang, Luobin

AU - Wang, Haozhong

AU - Wang, Fengyi

AU - Duan, Fangcheng

AU - Liu, Jiahao

AU - Li, Mingyu

AU - Hang, Chunjin

AU - Chen, Hongtao

PY - 2023/2

Y1 - 2023/2

N2 - 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 × 10−4 Ω 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 °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.

AB - 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 × 10−4 Ω 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 °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.

KW - Bulk resistivity

KW - Coupling agents

KW - Electrically conductive adhesives

KW - Rheology

KW - Shear strength

UR - https://www.scopus.com/pages/publications/85147606820

U2 - 10.1016/j.ijadhadh.2022.103300

DO - 10.1016/j.ijadhadh.2022.103300

M3 - 文章

AN - SCOPUS:85147606820

SN - 0143-7496

VL - 122

JO - International Journal of Adhesion and Adhesives

JF - International Journal of Adhesion and Adhesives

M1 - 103300

ER -

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

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Keywords

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