• 专利标题:   Preparing flexible sensing fabric useful in e.g. preparing flexible wearable sensor, comprises e.g. hydrothermally reacting graphene, sodium molybdate dihydrate and iron(III) nitrate nonahydrate, and preparing spinning stock solution from graphene/iron molybdate conductive nanocomposite material.
  • 专利号:   CN114892330-A
  • 发明人:   ZHANG X, YI F
  • 专利权人:   UNIV SUN YATSEN
  • 国际专利分类:   D01D005/06, D01F001/09, D01F001/10, D01F006/94, D02G003/04, D02G003/38, D02G003/44, D04B001/14, G01K007/16, G01L001/00
  • 专利详细信息:   CN114892330-A 12 Aug 2022 D04B-001/14 202291 Chinese
  • 申请详细信息:   CN114892330-A CN10424887 21 Apr 2022
  • 优先权号:   CN10424887

▎ 摘  要

NOVELTY - Preparing flexible sensing fabric comprises (i) preparing graphene/iron molybdate conductive nano-composite material by hydrothermal reaction of graphene, sodium molybdate dihydrate and iron(III) nitrate nonahydrate, (ii) preparing spinning stock solution from graphene/iron molybdate conductive nanocomposite material obtained in the step (i), thermoplastic polyurethane (TPU) and organic solvent, (iii) preparing graphene/iron molybdate heat-sensitive fibers by firstly preparing the spinning stock solution obtained in the step (ii) into graphene/iron molybdate mixed fibers by wet spinning, using an organic solvent to steam anneal the obtained mixed fibers at 150-170°C to prepare fibers, and (iv) preparing fabric by winding fiber filament on graphene/iron molybdate heat-sensitive fiber obtained in step (iii) to prepare core-coated electrode, and weaving the obtained electrode into flexible sensing fabric. USE - The flexible sensing fabric is useful in preparing a flexible wearable sensor (claimed), and for detecting and distinguishing temperature and pressure comprising but are not limited to electronic skin, man-machine interaction, healthy medical treatment and soft robot. ADVANTAGE - The method: has excellent flexibility; uses thermosensitive fiber electrodes to convert temperature stimulation into resistance signals; utilizes triboelectric nanogenerators to convert pressure stimulation into voltage signals; performs detection of temperature and pressure changes, which has both high temperature sensing sensitivity and high-pressure sensing sensitivity; and do not interfere the outputs of the two detection signals with each other, which has great potential application value. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a flexible sensing fabric prepared by the above mentioned method.