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  • 专利标题:   Preparing graphene modified cement comprises e.g. adding graphene oxide in organic solvent, uniformly dispersing in inert atmosphere, adding isocyanate, reacting, adding monohydric alcohol, reacting, adding hydrazine hydrate and reacting.
  • 专利号:   CN112479625-A, CN112479625-B
  • 发明人:   ZHANG H, YAN X, HAN W, XIE H, ZHANG T, ZHANG K, XIA Y, SONG Z, WAN Y, LIN P, GAO H
  • 专利权人:   UNIV ANHUI TECHNOLOGY
  • 国际专利分类:   C04B024/28, C04B028/04
  • 专利详细信息:   CN112479625-A 12 Mar 2021 C04B-024/28 202128 Pages: 7 Chinese
  • 申请详细信息:   CN112479625-A CN11228295 06 Nov 2020
  • 优先权号:   CN11228295

▎ 摘　　要

NOVELTY - Preparing graphene modified cement comprises (i) adding graphene oxide into organic solvent, uniformly dispersing in inert atmosphere, adding isocyanate, reacting at 50-60 degrees C for 10-15 hours, adding monohydric alcohol, continuously reacting for 5-8 hours, adding hydrazine hydrate, continuously reacting for 5-8 hours, filtering, washing, drying and crushing the product to obtain polyurethane modified graphene, (ii) taking polyethylene glycol, tetrabutyl titanate, placing the polyurethane modified graphene in the solution, fully mixing, adjusting the solution to react for 3-5 hours under the acidic environment, adjusting the solution to alkaline aging, drying to obtain polyethylene glycol/titanium dioxide/polyurethane modified graphene composite material, and (iii) dissolving the polyethylene glycol/titanium dioxide/polyurethane modified graphene composite material in water to obtain modified graphene dispersion liquid, mixing the modified graphene dispersion liquid with cement. USE - The method is useful for preparing graphene modified cement. ADVANTAGE - The method enables preparation of graphene modified cement with improved dispersibility, stability and performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene modified cement.