• 专利标题:   Preparing graphene-based wear-resistant wireless pressure sensor by e.g. freeze-drying graphene dispersion, ultrasonically crushing graphene aerogel, mixing aerogel fragments and bacterial cellulose aerogel, and vacuum filtering dispersion, adhering outer walls of the two composite film electrodes.
  • 专利号:   CN115060397-A
  • 发明人:   HU N, SUN J, WANG Z
  • 专利权人:   UNIV HEBEI TECHNOLOGY
  • 国际专利分类:   A61B005/02, A61B005/11, A61B005/22, G01L001/00
  • 专利详细信息:   CN115060397-A 16 Sep 2022 G01L-001/00 202293 Chinese
  • 申请详细信息:   CN115060397-A CN10696991 20 Jun 2022
  • 优先权号:   CN10696991

▎ 摘  要

NOVELTY - Preparing graphene-based wear-resistant wireless pressure sensor comprises (i) freeze-drying graphene dispersion at -60℃ for 48 hours, and crushing graphene aerogel; (ii) adding deionized water to the bacterial cellulose hydrosol, and ultrasonically crushing to obtain a bacterial cellulose dispersion, freeze-drying at -60℃ for 48 hours; (iii) mixing the graphene aerogel fragments and the bacterial cellulose aerogel, adding deionized water, ultrasonically dispersing; (iv) freeze-drying 10 ml dispersion at -60℃ for 48 hours; (v) vacuum filtering the graphene/bacterial cellulose dispersion in 10 ml dispersion; (vi) cutting the composite aerogel into cuboids; (vii) cutting the composite film into two rectangles; and (viii) adhering outer walls of the two composite film electrodes on the polyurethane medical adhesive tape, fixing wire on the electrodes, and placing the aerogel active layer between the inner walls of the two cellulose composite film electrodes. USE - The method is useful for preparing graphene-based wear-resistant wireless pressure sensor. ADVANTAGE - The method has fast response and recovery time, and realizes reading the signal of the graphene-based wear-resistant wireless pressure sensor without physical constraints.