一种层级微相分离应变增强型离子导电弹性体纤维及其制备方法与应用

By constructing a dual continuous network structure of EOEOEA/PAA and PEA/LiTFSI, the problems of resistance change and signal drift of ion-conductive fibers under dynamic deformation are solved, achieving efficient synergistic improvement of mechanical and conductive properties and self-healing ability, which is suitable for wearable electronics and soft robots.

CN122082246BActive Publication Date: 2026-07-17SHANGHAI UNIV OF ENG SCI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI UNIV OF ENG SCI
Filing Date
2026-04-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing ion-conductive fibers exhibit high resistance sensitivity under dynamic deformation, severe signal drift, and difficulty in achieving both mechanical and conductive properties. Furthermore, their fabrication processes are complex and lack self-healing capabilities, making them unsuitable for the practical needs of flexible electronic devices.

Method used

By employing hierarchical microphase separation engineering and a dual swelling process, a dual continuous network structure of EOEOEA/PAA continuous phase and PEA/LiTFSI continuous phase is constructed. Through hydrogen bonding and strong coordination, a mechanically reinforcing phase and an ion transport phase are formed, simplifying the preparation process and enabling continuous production.

Benefits of technology

It achieves stable ionic conductivity under high strain, and has excellent mechanical properties and self-healing ability. The resistance change is less than 0.1% and the self-healing efficiency is as high as 89%, making it suitable for wearable devices and soft robots.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122082246B_ABST
    Figure CN122082246B_ABST
Patent Text Reader

Abstract

本发明涉及一种层级微相分离应变增强型离子导电弹性体纤维及其制备方法与应用,离子导电弹性体纤维内部具有双连续网络结构,包括相互贯穿的EOEOEA / PAA连续相和PEA / LiTFSI连续相。该纤维以共聚物P(PEA‑co‑EOEOEA)为结构骨架,EOEOEA链段与PAA基于氢键作用构建EOEOEA / PAA连续相,PEA链段与LiTFSI基于强配位作用构建PEA / LiTFSI连续相,其中,EOEOEA / PAA连续相作为力学增强相,PEA / LiTFSI连续相作为离子运输相。本发明通过层级微相分离工程与双重溶胀工艺,构筑以EOEOEA链段(软段) / PAA为力学增强相、PEA链段(硬段) / LiTFSI为离子运输相的双连续网络结构,实现力学性能与导电性能的协同优化,获得兼具超高拉伸性、韧性、快速自修复性和应变不敏感离子导电性的离子导电弹性体纤维,同时实现该纤维的简易、连续化制备。
Need to check novelty before this filing date? Find Prior Art