▎ 摘　　要

NOVELTY - Method for preparing flexible sensing material using interface spinning technology, involves (a) dispersing cationic natural polymer in deionized water to obtain cationic natural polymer aqueous solution, and performing mechanical stirring or ultrasonic treatment to obtain cationic dispersant system, and dispersing, (b) adding conductive nano-material to cationic dispersant system, performing mechanical stirring or ultrasonic treatment process, and preparing conductive nano-material water dispersion (A) using cationic dispersant, adding conductive nano-material to anionic dispersant system, and performing mechanical stirring or ultrasonic treatment process, (c) placing conductive nano-material dispersion liquid (A) and (B) in same container to form contact or non-contact interface, gathering interface of conductive material dispersion liquid (A) and (B), drawing out solid-state anion complex formed at moment, and winding. USE - Method for preparing flexible sensing material used as strain sensing material (claimed). ADVANTAGE - The conductive wire has tensile strength of 50-100 MPa, diameter of 30-80 mu m and electrical conductivity of 350-3000 s/m, and ensures obvious response current/resistance changes, low detection limit and excellent fatigue stability. DETAILED DESCRIPTION - Method for preparing flexible sensing material using interface spinning technology, involves (a) dispersing cationic natural polymer in deionized water to obtain cationic natural polymer aqueous solution, and performing mechanical stirring or ultrasonic treatment to obtain cationic dispersant system, dispersing anionic natural polymer in deionized water to obtain anionic natural polymer solution, and performing mechanical stirring or ultrasonic treatment process to obtain anionic dispersant system, (b) adding conductive nano-material to cationic dispersant system, performing mechanical stirring or ultrasonic treatment process, and preparing conductive nano-material water dispersion (A) using cationic dispersant, adding conductive nano-material to anionic dispersant system, performing mechanical stirring or ultrasonic treatment process, and preparing conductive nano-material water dispersion solution (B) stabilized using anionic dispersant, (c) placing conductive nano-material dispersion liquid (A) and (B) in same container to form contact or non-contact interface, gathering interface of conductive material dispersion liquid (A) and (B), drawing out solid-state anion complex formed at moment, quickly baking out moisture in spun conductive filament, and winding filament to winding drum to obtain conductive wire. An INDEPENDENT CLAIM is included for a use of flexible sensing material prepared by above-mentioned method as strain sensing material.