• 专利标题:   Preparation of graphene oxide-silicon carbide modification nano nonwoven fabric involves taking graphite, concentrated sulfuric acid, potassium permanganate and deionized water, mixing, heating, cooling, filtering, and washing.
  • 专利号:   CN105256465-A, CN105256465-B
  • 发明人:   CHEN Y
  • 专利权人:   WUHAN ZHIFU ENTERPRISE MANAGEMENT CONSULTING CO LTD, WUHAN ZHIFU ENTERPRISE MANAGEMENT CONSUL
  • 国际专利分类:   C01B031/04, C01B031/36, D04H001/4382, D04H001/728, C01B032/198, C01B032/977
  • 专利详细信息:   CN105256465-A 20 Jan 2016 D04H-001/4382 201636 Pages: 6 English
  • 申请详细信息:   CN105256465-A CN10798923 19 Nov 2015
  • 优先权号:   CN10798923

▎ 摘  要

NOVELTY - A graphene oxide-silicon carbide modification nano nonwoven fabric is prepared by taking 4-6 g graphite, 20-40 mL concentrated sulfuric acid, 20-30 g potassium permanganate and 50-70 mL deionized water, mixing, heating at 60-80 degrees C for 6-7 hours, cooling, filtering, washing with purified water, adding 30-50 mL concentrated sulfuric acid and 35-45 g potassium permanganate, heating at 30-40 degrees C for 1-2 hours, stirring for 3-5 hours, adding 400-600 mL purified water, dissolving, adding 30-50 mL of 30 pts. wt. hydrogen peroxide solution, stirring for 1-2 hours, filtering, washing, drying. USE - Method for preparing graphene oxide-silicon carbide modification nano nonwoven fabric (claimed). ADVANTAGE - The fabric has excellent flame and water resistance. It has flame retardant grade of FAR25-853 and CCAR-25 standard vertical flame retardant. DETAILED DESCRIPTION - A graphene oxide-silicon carbide modification nano nonwoven fabric is prepared by taking 4-6 g graphite, 20-40 mL concentrated sulfuric acid, 20-30 g potassium permanganate and 50-70 mL deionized water, mixing, heating at 60-80 degrees C for 6-7 hours, cooling, filtering, washing with purified water, adding 30-50 mL concentrated sulfuric acid and 35-45 g potassium permanganate, heating at 30-40 degrees C for 1-2 hours, stirring for 3-5 hours, adding 400-600 mL purified water, dissolving, adding 30-50 mL of 30 pts. wt. hydrogen peroxide solution, stirring for 1-2 hours, filtering, washing, drying to obtain graphene oxide, taking 1.5-4:1 mol ratio of carbon and silicon, adding ethyl orthosilicate and sucrose, mixing, adding dilute hydrochloric acid, regulating pH value to 4-5, standing for 12-18 hours at 50-90 degrees C, taking product, pumping nitrogen, sintering at 800-1100 degrees C for 2-3 hours, obtaining nano silicon carbide, taking polystyrene, polyacrylamide 66, graphene oxide, silicon carbide and pentaerythritol, carbonizing, extruding, and electrostatic spinning.