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Composite alkali-activated solid waste type high performance inorganic adhesive, and preparation method thereof

An inorganic glue, high-performance technology, applied in cement production and other directions, can solve the problems of poor thermal stability of epoxy organic glue, the upper limit of temperature resistance is less than 80 ℃, insufficient shear force of inorganic glue, etc., to enhance market competition force and application range, improving mechanical properties, and the effect of structural stability

Active Publication Date: 2019-10-15
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the large-scale and high value-added utilization of slag, steel slag, laterite nickel slag and ferrochrome slag in the existing technology, epoxy organic adhesives have poor thermal stability, poor long-term chemical stability, and the upper limit of temperature resistance is not yet reached. 80°C, and the problem of insufficient shear force of existing inorganic adhesives

Method used

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  • Composite alkali-activated solid waste type high performance inorganic adhesive, and preparation method thereof
  • Composite alkali-activated solid waste type high performance inorganic adhesive, and preparation method thereof
  • Composite alkali-activated solid waste type high performance inorganic adhesive, and preparation method thereof

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Effect test

Embodiment 1

[0027] Taking the preparation of product 100g of the present invention as an example, the components used and their mass proportions are:

[0028]

[0029] The slag powder is granulated blast furnace slag powder with a particle size of 25 μm to 45 μm; the steel slag powder is converter hot slag powder with a particle size of 25 μm to 45 μm; the laterite nickel slag ultrafine powder has a particle size of 0.5 μm~2.5 μm; The particle size of the superfine powder of the ferrochrome slag is 0.5 μm~2.5 μm; The composite alkali activator is the mixture of sodium hydroxide and water glass, and the mass ratio of sodium hydroxide and water glass is 3: 1. Sodium hydroxide is industrially pure, water glass is industrially pure, and its modulus is 1.6; graphene oxide is a mixture of Staudemaier method graphene oxide and Brodie method graphene oxide; water is deionized water.

[0030] (1) Using a constant temperature magnetic stirrer to mix the slag fine powder and the steel slag fine p...

Embodiment 2

[0035] Taking the preparation of product 100g of the present invention as an example, the components used and their mass proportions are:

[0036]

[0037] The slag powder is granulated blast furnace slag powder with a particle size of 25 μm to 45 μm; the steel slag powder is electric furnace drum slag powder with a particle size of 25 μm to 45 μm; the laterite nickel slag ultrafine powder has a particle size of 0.5 μm ~2.5μm; the particle size of the ferrochrome slag ultrafine powder is 0.5μm~2.5μm; the composite alkali activator is a mixture of sodium hydroxide and water glass, and the mass ratio of sodium hydroxide and water glass is 1:1 , sodium hydroxide is industrially pure, water glass is industrially pure, and its modulus is 1.0; graphene oxide is Hummers method graphene oxide; water is deionized water.

[0038] (1) Using a constant temperature magnetic stirrer to mix slag fine powder and steel slag fine powder at normal temperature, the stirring speed is 400r / min, ...

Embodiment 3

[0043] Taking the preparation of product 100g of the present invention as an example, the components used and their mass proportions are:

[0044]

[0045] The slag powder is granulated blast furnace slag powder with a particle size of 25 μm to 45 μm; the steel slag powder is a mixture of hot stuffy slag powder and wind-quenched slag powder with a particle size of 25 μm to 45 μm; the laterite nickel slag is super The particle size of the fine powder is 0.5 μm to 2.5 μm; the particle size of the ferrochrome slag superfine powder is 0.5 μm to 2.5 μm; the composite alkali activator is a mixture of sodium hydroxide and water glass, and sodium hydroxide and water glass The mass ratio of sodium hydroxide is 1:3, sodium hydroxide is industrial pure, water glass is industrial pure, and its modulus is 0.8; Graphene oxide is a mixture of Brodie method graphene oxide and Hummers method graphene oxide; water is deionized water .

[0046] (1) Using a constant temperature magnetic stirr...

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Abstract

The invention discloses a composite alkali-activated solid waste type high performance inorganic adhesive, and a preparation method thereof, and belongs to the field of solid waste resource utilization. The composite alkali-activated solid waste type high performance inorganic adhesive comprises mineral slag micropowder, steel slag micropowder, laterite nickel ore slag ultrafine powder, ferrochromium slag ultrafine powder, a composite alkali exiciting agent, oxidized graphene, and water; the mineral slag micropowder is granulated blast furnace slag micropowder; the steel slag micropowder is one or a plurality of components selected from hot disintegrating slag micropowder, air granulation slag micropowder, molten iron desulphurization slag micropowder, casting slag micropowder, converter layer pouring slag micropowder, converter roller slag micropowder, electric furnace layer pouring slag micropowder, and electric furnace roller slag micropowder. The preparation method is capable of reducing production cost of conventional inorganic adhesive, improving the high temperature resistance and shearing force of inorganic adhesive, realizing combination of high temperature resistance andhigh shearing force on inorganic adhesive, improving inorganic adhesive market competition greatly, enlarging application range, and providing large scale high added value application ideas for utilization of mineral slag, steel slag, laterite nickel slag, and ferrochromium slag.

Description

technical field [0001] The invention belongs to the field of utilization of solid waste resources, and in particular relates to a compound alkali-activated solid waste high-performance inorganic glue and a preparation method thereof. Background technique [0002] Slag is a by-product of the blast furnace ironmaking process, and its main components are molten silicates and aluminosilicates. Steel slag is a solid waste produced in the steelmaking process, and its main components are CaO, Fe 2 o 3 、Al 2 o 3 , SiO 2 , MgO, P 2 o 5 , MnO, SO 3 and a small amount of free calcium oxide. Laterite nickel slag is a non-metallic mineral mainly composed of non-metallic minerals produced after the recovery of metallic minerals by acid leaching of laterite nickel ore, and its main component is SiO 2 , CaO, Al 2 o 3 , MgO, MnO, Cr 2 o 3 , FeO, etc. Ferrochrome slag is chromium-containing waste slag produced when chromium-containing ferroalloys are smelted by pyrometallurgy. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/153
CPCC04B7/1535Y02P40/10
Inventor 张浩王莹高青杜晓燕宗志芳刘秀玉
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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