| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| Effect of Polyurethane Synthesized from Different Polyester Diols on the Properties of Conductive Silver Paste |
| WANG Qisheng1,2, HE Fawang1,2, LIU Zhenguo1,2,*, WANG Jingwei2, LI Hongyu2
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1 Ningbo Institute of Northwestern Polytechnical University, Ningbo 315000, Zhejiang, China
2 Institute of Flexible Electronics, Northwestern Polytechnical University, Xi'an 710000, China |
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Abstract Modern consumer electronic products are developing rapidly, and towards the light weight, high integration, flexible development. Mechanical flexibility has become an important trend in the development of electronics. However, flexible electronics have strict requirements for interconnecting materials. In addition to providing conventional functions such as electrical performance and signal transmission, the interconnection of flexible electronics requires good mechanical stability and electrical interconnection during mechanical deformation. As the key material of flexible electronic interconnection, conductive silver paste has been widely studied. How to obtain the conductive silver paste with high conductivity and excellent flexibility is a problem that must be solved in the preparation of flexible electronic products. Based on this work, polyurethane prepared by multi-functional isocyanate and polyester diol was proposed as an organic carrier to prepare conductive silver paste. The results of 3D microscopy, electrical and mechanical properties test show that the prepared conductive silver paste has excellent printing properties, electrical properties and flexibility.
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Published: 10 July 2024
Online: 2024-08-01
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| Fund:Shaanxi Provincial Key Research and Development Project (2020GXLH-Z-019;2020GXLH-Z-009) and Ningbo Science and Technology Program Project (2021E010). |
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2024, Vol. 38 
