Epoxy‐based adhesives filled with flakes ag‐coated copper as conductive fillers

Zhao, Jun; Zhang, Dongming

doi:10.1002/pc.23645

Cited by 16 publications

(11 citation statements)

References 17 publications

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“…Conductive llers provide conductive ability for ECA, so the performance of llers can greatly affect the conductive performance of the composites. The conductive llers of ECA are mainly include metal powders, graphite, carbon nanotubes [8][9][10][11][12][13][14]. The metal ller has good conductivity and usually include silver, copper, gold, chromium, nickel and lead-free alloy.…”

Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Preparation of Silver Nanopowders and Its Application in Low Temperature Electrically Conductive Adhesive

Zhang

Yang

Wang

2021

Preprint

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Printable electrically conductive adhesive with high electrical conductivity and good mechanical properties has wide application prospect in electronic device. In order to explore new conductive fillers of interconnecting materials in electronic circuit and electronic packaging industries, silver nanopowders were prepared by DC arc plasma method with high pure. The silver nanopowders present a spherical structure, the particle’s diameter range from 15 to 220 nm. In this paper, a high performance electrically conductive adhesive (ECA) was prepared. This ECA was fabricated by mixing silver nanopowders with epoxy resin and was screen-printed to a required shape. It was found that the ECA can be solidified through a low temperature sintering method in the air at 150 ℃ for 10 min. The electrical and mechanical of above ECA were investigated and characterized. The ECA filled with 75% silver nanopowders exhibits excellent performances, including high electrical conductivity (9.5×10-4 Ω·cm), high bonding strength ( 8.3 MPa). Based on the performance characteristics, the ECA applications in flexible printed electrodes and interconnecting materials are demonstrated.

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Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Preparation of Silver Nanopowders and Its Application in Low Temperature Electrically Conductive Adhesive

Zhang

Yang

Wang

2021

Preprint

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“…Many researches have studied epoxy-based ECAs [19]. The formation of effective conductive paths in the ECAs is the key to obtain high electrical conductivity.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Epoxy Resin Filled with Ti3C2Tx MXene Nanosheets with Excellent Electric Conductivity

et al. 2020

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MXene represents new kinds of two-dimensional material transition metal carbides and/or carbonitrides, which have attracted much attention in various applications including electrochemical storage devices, catalysts, and polymer composite. Here, we report a facile method to synthesize Ti3C2Tx MXene nanosheets and prepare a novel electrically conductive adhesive based on epoxy resin filled with Ti3C2Tx MXene nanosheets by solution blending. The structure, morphology, and performance of Ti3C2Tx MXene nanosheets and epoxy/Ti3C2Tx MXene nanosheets composite were investigated. The results show that Ti3C2Tx MXene possesses nanosheet structure. Ti3C2Tx MXene nanosheets were homogeneously dispersed in epoxy resin. Electrical conductivity and mechanical properties measurements reveal that the epoxy/Ti3C2Tx MXene nanosheet composite exhibited both good electrical conductivity (4.52 × 10−4 S/m) and favorable mechanical properties (tensile strength of 66.2 MPa and impact strength of 24.2 kJ/m2) when the content of Ti3C2Tx MXene nanosheets is 1.2 wt %. Thus, Ti3C2Tx MXene is a promising filler for electrically conductive adhesive with high electric conductivity and high mechanical performance.

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“…Among samples, the specimen with 70 wt.% filler content (percolation threshold) was selected to improve the electrical conductivity of adhesive because, as shown in Figure A, the slope of bulk resistivity reduction is relatively fast up to 70 wt.% and is almost constant from 70 to 80 wt.%, so 70 wt.% of silver‐coated copper particles is enough to contact these conductive particles to each other and to form good electrical conductive networks . In the percolation threshold, the main resistance is the contact resistance between copper and silver . Also, by increasing the filler percentage from 70 to 80 wt.%, the mechanical properties of the adhesive will be greatly reduced.…”

Section: Resultsmentioning

confidence: 99%

Electrically conductive epoxy‐based nanocomposite adhesives loaded with silver‐coated copper and silver‐coated reduced graphene oxide nanoparticles

Peighambardoust

Rikhtegar

Pakdel

et al. 2019

Polymers for Advanced Techs

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In this research, a conductive adhesive based on epoxy resin as the polymer matrix and silver-coated copper powder and silver-coated reduced graphene oxide as conductive fillers was synthesized. Graphene oxide was synthesized by modified Hummer's method. It was reduced and modified by silver powder. Copper particles were coated with silver using the electroless plating method. Finally, conductive nanocomposite adhesives were prepared using conductive fillers with different weight fractions. The structural properties of fillers were identified by Fouriertransform infrared (FTIR) and induced coupled plasma (ICP) analysis and the morphology of the samples by scanning electron microscopy (SEM). Finally, conductive properties, lap shear strength, and thermal stability of adhesive were evaluated. The conductive adhesive prepared with optimized properties have 70% weight percentage silver-coated copper powder and 1% weight percentage silver-coated reduced graphene oxide. The bulk resistivity of the optimum sample was 1.6 × 10 -2 Ω.cm, and the lap shear strength was 7.10 MPa. Also, thermogravimetric analysis showed that the weight loss of adhesive decreased from 88.72% to 30.55% during heating, which showed the addition of fillers improves the thermal stability of adhesive.

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Epoxy‐based adhesives filled with flakes ag‐coated copper as conductive fillers

Cited by 16 publications

References 17 publications

WITHDRAWN: Preparation of Silver Nanopowders and Its Application in Low Temperature Electrically Conductive Adhesive

WITHDRAWN: Preparation of Silver Nanopowders and Its Application in Low Temperature Electrically Conductive Adhesive

Preparation and Characterization of Epoxy Resin Filled with Ti3C2Tx MXene Nanosheets with Excellent Electric Conductivity

Electrically conductive epoxy‐based nanocomposite adhesives loaded with silver‐coated copper and silver‐coated reduced graphene oxide nanoparticles

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