Design and Characterization of Electrical Connections for Conductive Yarns

• 作者: SI Mengzhen WANG Xi LI Qiao
• 来源期刊: 东华大学学报（英文版）
• 年，卷（期）: 2021,（4）
• 所属期刊栏目: Flexible Textile Shaped Electronics
• 页码范围: 304-309
• 页数: 6页
• 分类号: TS101
• 语种: 英文
• DOI: 10.19884/j.1672-5220.202103006

摘要

The development of flexible and stretchable electronics has attracted much attention.As an important part of wearable electronic systems,the connection between conductive yarns and electronic components affects the stability and accuracy of their electrical reliability.In this paper,three different connections were attempted to electrically and mechanically link two conductive yarns,including soldering followed by waterborne polyurethane(WPU)encapsulation,coating of conductive silver adhesive with WPU encapsulation,as well as coating of conductive silver adhesive with polydimethylsiloxane(PDMS)encapsulation.The surface morphologies and electro-mechanical behaviors of the three created connected conductive yarns were characterized.Compared with their electro-mechanical behaviors of the established three connections,the connection with soldering remained electrically conductive to around 200％,which mainly came from the stress concentration between the stiff soldering and soft conductive yarns.However,the coating of conductive silver adhesive and encapsulated protection of PDMS can make the connected conductive yarns stretchable up to 300％with almost constant electrical resistance.