• 专利标题:   Processing of leather shoes, involves processing of leather, and using prepared mildew-proof slurry to form film on leather material, where film layer contains graphene-based metal framework composite nanomaterial.
  • 专利号:   CN110904290-A
  • 发明人:   YANG C
  • 专利权人:   JIESHOU FANGZHOU SHOES IND CO LTD
  • 国际专利分类:   C14C011/00
  • 专利详细信息:   CN110904290-A 24 Mar 2020 C14C-011/00 202033 Pages: 8 Chinese
  • 申请详细信息:   CN110904290-A CN11256738 10 Dec 2019
  • 优先权号:   CN11256738

▎ 摘  要

NOVELTY - Method for processing of leather shoes, involves processing of leather, and using prepared mildew-proof slurry to form a film on the leather material, where the film layer contains a graphene-based metal framework composite nanomaterial. The graphene-based metal framework composite nanomaterial is prepared by (i) taking sodium carbonate in beaker, adding deionized water, stirring to dilute to obtain aqueous solution, adding graphene to sodium carbonate aqueous solution, and dispersing to obtain stable suspension, dripping calcium chloride solution and cobalt chloride solution to suspension, heating, adding ammonium persulfate aqueous solution to beaker, sealing with parafilm, placing in oven, adding ammonium chloride buffer solution to beaker, adjusting pH of system, and (ii) transferring mixture to reaction kettle, carrying out pressure-increasing reaction, naturally cooling, washing with deionized water and anhydrous ethanol, placing product in oven, drying, and grinding. USE - The method is useful for processing of leather shoes. ADVANTAGE - The method disturbs metabolism and force molds to be unable to secrete enzymes, blocks the source of nutrients of molds, inhibits the growth and reproduction of molds in the leather shoe, ensures long-lasting anti-mold effect and no toxic effect on human body, has high chemical stability, low preparation cost and no damage to the leather, and extends the wearing life of leather shoe. DETAILED DESCRIPTION - Method for processing of leather shoes, involves processing of leather, and using the prepared anti-mold slurry to form a film on the leather material, where the film layer contains a graphene-based metal framework composite nanomaterial. The graphene-based metal framework composite nanomaterial is prepared by (i) taking 7-7.5 g sodium carbonate in a beaker, adding 140-150 g deionized water to the beaker, stirring to dilute to obtain an aqueous solution, adding 1.2-1.3 g graphene to the sodium carbonate aqueous solution, and dispersing for 15-20 minutes to obtain a stable suspension, dripping 3.5-4 ml calcium chloride solution and 2.4-2.8 ml cobalt chloride solution to the suspension under continuous stirring, heating at 68-70 degrees C, adding 10-12 ml ammonium persulfate aqueous solution to the beaker, continuously stirring for 2-3 hours, sealing with parafilm, placing in an oven at 80-85oC for 8-10 hours, adding ammonium chloride buffer solution with pH value of 10.2-10.4 to the beaker, adjusting the pH of the system to 9-9.4, and (ii) transferring the mixture to a reaction kettle, carrying out a pressure-increasing reaction at 160-170 degrees C and 1.35-1.45 MPa for 6-8 hours, naturally cooling to room temperature, centrifugally washing with deionized water for 3-4 times, and centrifugally washing with anhydrous ethanol for 2-3 times, placing the product in a vacuum drying oven, drying at 80-90 degrees C for 10-12 hours, and grinding to obtain a powdered product.