• 专利标题:   Preparation of graphene-based superhydrophobic self-cleaning glass involves coating with self-cleaning coating containing graphene oxide on glass substrate, using silicone coupling agent for surface spraying treatment, and tempering.
  • 专利号:   CN113548810-A
  • 发明人:   LIU B, LI J, WANG X, HAN L, GUO Y, ZHANG F, ZU X
  • 专利权人:   TIANJIN VOCATIONAL INST
  • 国际专利分类:   C03B027/012, C03C017/42
  • 专利详细信息:   CN113548810-A 26 Oct 2021 C03C-017/42 202202 Chinese
  • 申请详细信息:   CN113548810-A CN10950750 18 Aug 2021
  • 优先权号:   CN10950750

▎ 摘  要

NOVELTY - Preparation of graphene-based superhydrophobic self-cleaning glass involves coating hydrophilic coating solution to graphene-containing nano-silica or nano-titanium dioxide/silica hydrosol on solar glasscoating, curing at 130-180degreesC for 6-10 minutes to form dry gel film with thickness of 100-150 nm, with film hardness of 4H, and light transmittance of greater than 93.2%, spraying ethanol aqueous solution of organic silicon coupling agent on first film layer after drying, curing at 100-130degreesC for 3-5 minutes to form thickness of 20-50 nm organic silicon dry film layer, tempering coated glass at 600-700degrees Celsius for 6-30 minutes, so that graphene oxide is thermally reduced to conductive graphene at high temperature, and organic content in second coating layer silicon is partially carbonized, washing with deionized water after cooling, and drying to obtain graphene-based superhydrophobic self-cleaning glass. USE - The method is used for preparing graphene-based superhydrophobic self-cleaning glass. ADVANTAGE - The method enables to form graphite alkenyl super-hydrophobic cleaning glass that has excellent self-cleaning property, light transmittance, surface hardness and surface square resistance. DETAILED DESCRIPTION - Preparation of graphene-based superhydrophobic self-cleaning glass comprises coating hydrophilic coating solution to graphene-containing nano-silica or nano-titanium dioxide/silica hydrosol on solar glass by bar coating, spraying or roller coating, curing at 130-180degreesC for 6-10 minutes to form dry gel film with thickness of 100-150 nm, with film hardness of 4H, and light transmittance of greater than 93.2%, spraying ethanol aqueous solution of organic silicon coupling agent on first film layer after drying, curing at 100-130degreesC for 3-5 minutes to form thickness of 20-50 nm organic silicon dry film layer, where organic silicon coupling agent is organic silicon coupling agents with active functional groups amino, hydroxyl, and epoxy groups, tempering coated glass at 600-700degrees Celsius for 6-30 minutes, so that graphene oxide is thermally reduced to conductive graphene at high temperature, and organic content in second coating layer silicon is partially carbonized, washing with deionized water after cooling, and drying to obtain graphene-based superhydrophobic self-cleaning glass, where light transmittance of solar glass in wavelength range of 80-1100 nm is 93.2%-94.7. %, surface sheet resistance is reduced from 1012 Omega of glass to 107-108 Omega, and water contact angle is 158-162degrees.