• 专利标题:   Graphene geopolymer material useful in e.g. building concrete materials, comprises sludge, activated silica-alumina material, alkali stimulant, and additives having graphene, tartaric acid, phosphate, and naphthalene-based superplasticizer.
  • 专利号:   CN111217547-A
  • 发明人:   JIANG S, LI Y, LIN Z, XIE J, YE R, LIANG W, LI D, XU Y
  • 专利权人:   UNIV GUANGDONG TECHNOLOGY
  • 国际专利分类:   C04B012/00, C04B028/26
  • 专利详细信息:   CN111217547-A 02 Jun 2020 C04B-012/00 202050 Pages: 8 Chinese
  • 申请详细信息:   CN111217547-A CN10047730 16 Jan 2020
  • 优先权号:   CN10047730

▎ 摘  要

NOVELTY - Graphene geopolymer material comprises sludge, activated silica-alumina material, alkali stimulant, and additives comprising graphene, tartaric acid, phosphate, and naphthalene-based superplasticizer. USE - The geopolymer material is useful in motorway materials, building concrete materials, three-dimensional printing materials, sculpture materials, sewage treatment filter materials and/or catalyst carriers (claimed). ADVANTAGE - The geopolymer material: utilizes sludge, activated silicon aluminum material and alkali stimulant as raw materials; realizes the resource utilization of sludge; solves the problems of difficult sludge treatment and high treatment cost; has synergistic effect; improves the performance of geopolymers; makes graphene geopolymers have high compressive strength and flexural strength; solves the defects of high strength but brittleness of existing geological polymers; has high temperature resistance, corrosion resistance and wear resistance; contains a large amount of silico-alumina materials, which can be recycled; reduces material waste; and saves resources. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing graphene geopolymer material, comprising (i) mixing the sludge with the activated silicoalumina material, then adding graphene, tartaric acid, phosphate and naphthalene-based water-reducing agent, uniformly mixing, and adding alkali activator to obtain slurry, and (ii) pouring the slurry into a mold, and performing steam-curing; and (2) regenerating the graphene geopolymer material, comprising (A) calcining the waste graphene geopolymer materials to obtain calcined graphene geopolymer materials, (B) mixing the calcined graphene geopolymer material with sludge, then adding graphene, tartaric acid, phosphate and naphthalene water-reducing agent, uniformly mixing, and adding alkali activator to obtain a regenerated slurry, and (C) pouring the regenerated slurry into a mold, and performing steam-curing to obtain regenerated graphene geopolymer material.