• 专利标题:   Film is obtained by curing and forming by coating with emulsion comprising hydroxyl-containing water-based fluororesin, sodium silicate, water-soluble alkali, water-based isocyanate curing agent, water-based phosphate ester, modified graphene oxide, antioxidant, UV absorber, and water.
  • 专利号:   CN113861821-A
  • 发明人:   YU H
  • 专利权人:   NINGBO XINGHE NEW MATERIAL GROUP CO LTD
  • 国际专利分类:   C09D175/04, C09D005/08, C09D007/62, C09D007/63
  • 专利详细信息:   CN113861821-A 31 Dec 2021 C09D-175/04 202243 Chinese
  • 申请详细信息:   CN113861821-A CN11176896 09 Oct 2021
  • 优先权号:   CN11176896

▎ 摘  要

NOVELTY - Film is obtained by curing and forming by coating with an emulsion comprising 55-60 parts mass hydroxyl-containing water-based fluororesin, 3-5 parts mass sodium silicate, 0.5-1 part mass water-soluble alkali, 15-20 parts mass water-based isocyanate curing agent, 2-3 parts mass water-based phosphate ester, 3-5 parts mass modified graphene oxide, 0.5-0.8 part mass antioxidant, 0.3-0.7 part mass UV absorber, 0.7-1.5 part mass flame retardant, 0.2-0.5 part mass alcohol, and 55-65 parts mass water. USE - As film. ADVANTAGE - The film greatly improves adhesion, has excellent weather resistance, acid and alkali resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the film comprising (a) mixing the hydroxyl-containing water-based fluororesin, sodium silicate, and water-soluble alkali and stirring evenly, mixing the water-based isocyanate curing agent and the water-based phosphate ester and stirring evenly, mixing and stirring the modified graphene oxide, antioxidant, UV absorber, flame retardant and alcohol evenly, mixing the three mixtures together and stirring, (b) adding water in the final mixture in step (a), stirring and be warming up to 75-85degrees Celsius of reaction to form emulsion, and (c) washing with acid on the surface to be coated of the steel substrate, coating the emulsion to a thickness on the washed surface, and drying.