• 专利标题:   Aqueous graphene dispersion useful e.g. as substitute for general organic alcohol antifreeze and cooling medium for industrial production, comprises dispersant, graphene powder, dispersion auxiliary agent and anti-freezing component.
  • 专利号:   CN113461002-A
  • 发明人:   WU J, WEI C, MA J, DU W, ZHANG L
  • 专利权人:   JILIN GERUI ENERGY SAVING TECHNOLOGY CO LTD
  • 国际专利分类:   C01B032/194
  • 专利详细信息:   CN113461002-A 01 Oct 2021 C01B-032/194 202209 Chinese
  • 申请详细信息:   CN113461002-A CN10848999 27 Jul 2021
  • 优先权号:   CN10848999

▎ 摘  要

NOVELTY - Aqueous graphene dispersion comprises 1-15 wt.% dispersant, 0.05-0.5 wt.% graphene powder, 0-5 wt.% dispersion auxiliary agent and 10-50 wt.% anti-freezing component. The anti-freezing component is the product of the reaction of formic acid with metal oxides, hydroxides and/or carbonates. The dispersant is sodium polyaspartate, sorbitol ester, betaine, and/or quaternary ammonium compounds. The dispersion auxiliary agent is carboxymethyl cellulose salt. USE - The aqueous graphene dispersion is useful as substitute for general organic alcohol antifreeze, in electrolyte of battery systems, for the cooling medium of the battery system, and the antifreeze of the cooling system, as a heat exchange medium for clean energy devices and other energy storage devices, as a cooling medium for industrial production, as a raw material for the preparation of antifreeze hydrogels, and preparing thermal interface materials currently used in thermal interface (e.g. thermal conductive gel, thermal grease, and heat dissipation gasket) (claimed) and in the technical field of functional material preparation, rechargeable battery and printing technology catalytic organic synthesis. ADVANTAGE - The aqueous graphene dispersion has high stability under low temperature condition, and is non-toxic, harmless, low corrosion to various metal material and high molecular material, and has excellent energy storage effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing aqueous graphene dispersion.