国家/地区 中国（8）
IPC部 C（10）
IPC大类 C04（10） C08（2）
IPC小类 C04B（10）
IPC C04B024/28（10）
发明人 LI G（2） LIU J（2）
公开年 2022（5） 2021（4）
申请年 2021（10）
专利权人

Graphene layer complex used in the field of oil and gas well cementing, comprises graphene oxide and polymer grafted on the graphene oxide, and the polymer comprises a structural unit derived from 2-acrylamide-2-methylpropanesulfonic acid and a structural unit derived from the second monomer.

LIU J, MIAO X, WEI H, ZHOU S, WANG M

Preparing graphene-nanosheets based concrete additive, comprises e.g. mixing polycarboxylate ether-A to retarder-based salt solution to obtain retarder based solution, and adding Polycarboxylic acid ether-B to the solution.

GEDELA V, NUGURU R, GEDELA V R

Self-hardening aluminosilicate binder composition for e.g. ceramic bonding, comprises aluminosilicate, modified resin, sodium carbonate, sodium dodecyl sulfonate, ethanol, graphene oxide, and triethylenetetramine, where modified resin is prepared by reacting e.g. chlorosulfonic acid.

ZHANG H, CHEN T, MA X, XU K, CHENG N, CHEN Q

High strength regenerated concrete comprises regenerated aggregate, fine aggregate, cement, adhesive, reinforcing agent, foaming agent, water reducing agent and water.

XU C, CHEN B, ZHAO F

High performance fast coagulating early strength concrete, has concrete mixing material, comprising e.g. cement, silicon powder, regenerated aggregate, water reducing agent, quick-setting agent, calcined lime powder, epoxy resin, nano hydroxyapatite, modified graphene fiber, and wollastonite powder.

LI R, LI G, LI P, LIU J, CHEN D, TANG F, ZHONG X, LV M, SONG G, YU T, MU L, LI H, LIANG D, CAI X, LIN X, LAI J, YU C, SONG L

Ligand obtained by polycondensation of first polymer, thionyl chloride, 4-hydroxy-2,2':6',2"-terpyridine and dichloromethane, where first polymer is formed by free radical polymerization of methoxy polyethylene glycol acrylate, unsaturated monocarboxylic acid and acrylamide monomers.

ZHONG L, FANG Y, LIN Z, WU C, LI G, SHAO Y

Temperature-resistant concrete comprises e.g. cement, clay clinker, water, magnesium sand, water reducing agent, alumina, modifier, graphene, flame retardant, auxiliary agent, expanded perlite, ceramic powder, modified silicon dioxide aerogel, and hydrogenated nitrile-butadiene rubber powder.

DAI Y, SONG W

Cement-based polyurethane composite insulation board comprises polyurethane adhesive, Portland cement, nano-bentonite, water reducing agent, silane coupling agent, modified cellulose, hydrogen peroxide foaming agent, coal ash, and water.

JIANG Y, ZHOU H, SUN Y

Composition useful for restoring cross-section of concrete structure, comprises e.g. general cement or slag cement, silica sand, expansion material, nano-metal material, super water-repellent curing agent, admixture and fluidizing agent.

JUNG S Y

Preparation of graphene cement additive includes mixing graphene powder, anhydrous gypsum, dendritic polyamidoamine, cement adhesive and slag powder, extruding slurry, drying, grinding to obtain graphene cement additive and packaging.

WU W, YU Y, YU S