• 专利标题:   Hydroxyl functional group-bonded graphene oxide sheet used in dispersion for antifreeze solution, comprises graphene oxide sheet whose surface is bonded with one or more hydroxyl-containing functional groups.
  • 专利号:   KR2017138283-A, KR1876029-B1
  • 发明人:   CHA J H, KIM B S, LYO I W, PARK M J, SONG K H
  • 专利权人:   HYUNDAI MOTOR CO LTD, KIA MOTORS CORP, UNIST ULSAN NAT SCI TECHNOLOGY INST
  • 国际专利分类:   C01B031/04, C04B035/01, C04B035/622, C04B041/82, C07C043/15, C09K005/20
  • 专利详细信息:   KR2017138283-A 15 Dec 2017 C01B-031/04 201809 Pages: 12
  • 申请详细信息:   KR2017138283-A KR070485 07 Jun 2016
  • 优先权号:   KR070485

▎ 摘  要

NOVELTY - A hydroxyl functional group-bonded graphene oxide sheet comprises a graphene oxide sheet whose surface is bonded with one or more hydroxyl-containing functional groups (1). USE - Hydroxyl functional group-bonded graphene oxide sheet is used in dispersion for antifreeze solution (all claimed). DETAILED DESCRIPTION - A hydroxyl functional group-bonded graphene oxide sheet comprises a graphene oxide sheet whose surface is bonded with one or more hydroxyl-containing functional groups of formula (1). R=1-10C alkylene. INDEPENDENT CLAIMS are included for the following: (1) preparation of hydroxyl functional group-bonded graphene oxide sheet, which involves mixing a solution (s1) comprising a solvent and a graphene oxide sheet having an epoxy group bonded to its surface, with a solution (s2) comprising a glycol compound and a basic compound, and reacting; (2) dispersion, which comprises a solvent and hydroxyl functional group-bonded graphene oxide sheet dispersed in the solvent; and (3) antifreeze solution, which comprises a solvent, the hydroxyl functional group-bonded graphene oxide sheet and an additive chosen from anticorrosive agent, antifoaming agent and pH modifier.