Graphene alkali-free liquid accelerator as well as preparation method and application thereof
A graphene and accelerator technology, applied in the field of graphene-free liquid accelerator and preparation thereof, can solve the problems of high compressive strength, long setting time, low production cost, etc., achieve low cost and overcome waste of resources , to promote the effect of lifting
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[0074] In another specific embodiment, the present invention provides a kind of preparation method of graphene alkali-free liquid quick-setting agent, and described preparation method specifically comprises the following steps:
[0075] Aluminum oxide is added to an acid solution with a concentration of 18-22wt% in a stirring state, and a one-stage reaction is performed for 30-60 minutes; after the one-stage reaction is completed, it is mixed with an aluminum salt, and a two-stage reaction is carried out for 30-60 minutes to obtain Aluminum solution; Wherein, the mass ratio of described acid solution, aluminum oxide and aluminum salt is (150-180):(35-40):(180-200);
[0076] Expanded graphite, water, suspending agent, emulsifier and defoamer are mixed sequentially and carried out one-stage stirring for 5-7h, and after adding water, two-stage stirring and grinding for 5-7h to obtain a few-layer graphene dispersion; wherein, the During mixing, the mass ratio of expanded graphite,...
Embodiment 1
[0080] The present embodiment provides a graphene alkali-free liquid quick-setting agent, comprising the following components in parts by weight: aluminum-containing solution: 385 parts, few-layer graphene dispersion liquid: 1 part, CuSO 4 : 15 parts, ZnO: 10 parts.
[0081] The aluminum-containing solution includes the following raw materials in parts by weight: 150 parts of hydrofluoric acid with a concentration of 20 wt%, 35 parts of activated aluminum hydroxide, and 200 parts of aluminum sulfate octadecahydrate.
[0082] The few-layer graphene dispersion comprises the following components in parts by weight: expanded graphite: 525 parts, water: 17000 parts, povidone k30: 10 parts, coconut oil fatty acid diethanolamide: 10 parts, polyoxypropylene poly Oxyethylene glyceryl ether GPE-3000: 10 parts.
[0083] The present embodiment also provides the preparation method of described graphene alkali-free liquid quick-setting agent, and described preparation method specifically c...
Embodiment 2
[0088] The present embodiment provides a graphene alkali-free liquid quick-setting agent, comprising the following components in parts by weight: aluminum-containing solution: 405 parts, few-layer graphene dispersion liquid: 0.5 parts, CuSO 4 : 10 parts, ZnO: 20 parts.
[0089] The aluminum-containing solution includes the following raw materials in parts by weight: 180 parts of hydrofluoric acid with a concentration of 20 wt%, 40 parts of activated aluminum hydroxide, and 180 parts of aluminum sulfate octadecahydrate.
[0090] The few-layer graphene dispersion includes the following components in parts by weight: expanded graphite: 525 parts, water: 17000 parts, sodium polyacrylate with a degree of polymerization of 22000: 10 parts, sulfonic acid: 10 parts, polyacrylic acid with a degree of polymerization of 6500 Dimethicone: 10 parts;
[0091] The present embodiment also provides the preparation method of described graphene alkali-free liquid quick-setting agent, and descri...
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