• 专利标题:   Preparing synthetic graphene-modified aqueous polyurethane thermal storage fabric film used as fabric coating in fabric, comprises e.g. preparing primary graphene oxide by improving the Hummers method, centrifuging, defoaming, coating prepared coating stock solution on centrifugal paper, and baking.
  • 专利号:   CN115404722-A
  • 发明人:   DAI J, ZHANG W, LU Y, SONG Y
  • 专利权人:   UNIV NANTONG, NANTONG TEIJIN CO LTD
  • 国际专利分类:   C01B032/198, D21H019/38, D21H019/62, D21H021/36, D21H027/00, D21H027/28
  • 专利详细信息:   CN115404722-A 29 Nov 2022 D21H-027/00 202311 Chinese
  • 申请详细信息:   CN115404722-A CN11018058 24 Aug 2022
  • 优先权号:   CN11018058

▎ 摘  要

NOVELTY - Preparing synthetic graphene-modified aqueous polyurethane thermal storage fabric film comprises preparing primary graphene oxide by improving the Hummers method, centrifuging the prepared nascent graphene oxide until there is no supernatant, centrifuging, mixing the primary graphene oxide with the aqueous polyurethane emulsion to obtain a mixture A, degassing the prepared mixture A to obtain film stock solution, coating the prepared coating stock solution on centrifugal paper by wire bar method and air-drying at room temperature, air-drying the centrifugal paper coated with the film stock solution at room temperature, baking at high temperature to prepare graphene-modified aqueous polyurethane thermal storage fabric film. USE - The synthetic graphene-modified aqueous polyurethane thermal storage fabric film is used as fabric coating in fabric (claimed). ADVANTAGE - The method avoids fussy steps of freeze-drying and re-suspending the primary graphene oxide, avoids oxidation graphene mixing before the reduction step, improves graphene efficiency of the modified aqueous polyurethane heat storage fabric, and avoids problem of uneven dispersion of the reduction oxidation graphene two steps.