Water glass curing agent and preparation method and application thereof

A curing agent, water glass technology, applied in chemical instruments and methods, applications, and other household appliances, etc., can solve the problems of not being able to withstand the impact of hot water and boiling water, limiting the scope of application, poor water resistance, etc., to increase value and improve Water resistance, toughness, and uniform porosity

Inactive Publication Date: 2018-05-29
广西经正科技开发有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, water glass has poor water resistance due to the residual alkali metal oxides with strong water absorption in the hardened product. It is not suitable for working in a long-term humid environment, and it cannot withstand the impact of hot water and boiling water, which limits the glue. Application range

Method used

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  • Water glass curing agent and preparation method and application thereof
  • Water glass curing agent and preparation method and application thereof
  • Water glass curing agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1. Preparation of zinc oxide modified shell powder.

[0038] (1) Weigh 297g of Zn(NO 3 ) 2 ·6H 2 O was dissolved in absolute ethanol;

[0039] (2) Add 38g of PEG-2000 and (2~3)g of glacial acetic acid, mix well, add 594g of shell powder, stir well at 50°C;

[0040] (3) Slowly add 10 mL of a mixed solution of ammonia water and absolute ethanol with a volume ratio of 1:1, keep the reaction for 2 hours, and let stand at room temperature for 12 hours;

[0041] (4) Filtration, washing, drying and calcination.

[0042] Two, prepare water glass curing agent.

[0043] (1) Phosphoric acid and aluminum hydroxide molar ratio of 1:1 reaction;

[0044] (2) Sintering, crushing and grinding the product;

[0045] (3) Preparation of zinc oxide modified shell powder;

[0046] (4) Mix and sinter all the powders, crush and grind until the particle size reaches the standard;

[0047] 3. Prepare a hydroxyethyl cellulose solution with a mass concentration of 2%.

[0048] Accurately ...

Embodiment 2

[0060] 1. Preparation of water glass curing agent.

[0061] (1) Phosphoric acid and aluminum hydroxide molar ratio of 1:1 reaction;

[0062] (2) Sintering, crushing and grinding the product;

[0063] (3) Preparation of zinc oxide modified shell powder;

[0064] (4) Mix and sinter all the powders, crush and grind until the particle size reaches the standard.

[0065] 2. Preparation of zinc oxide modified shell powder.

[0066] (1) Weigh 300g of Zn(NO 3 ) 2 ·6H 2 O was dissolved in absolute ethanol;

[0067] (2) Add 42g of PEG-2000 and 3g of glacial acetic acid, mix well, add 600g of shell powder, stir well at 55°C;

[0068] (3) Slowly add 15 mL of a mixed solution of ammonia water and absolute ethanol with a volume ratio of 1:1, keep the reaction for 2 hours, and let stand at room temperature for 12 hours;

[0069] (4) Filtration, washing, drying and calcination.

[0070] 3. Preparation of test blocks.

[0071] 1. Accurately weigh sodium silicate (50~100) g, water gla...

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PUM

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Abstract

The invention provides a water glass curing agent and a preparation method and application thereof. The water glass curing agent comprises aluminum phosphate, zinc oxide modified shell powder, powderysilicic acid/silica fume and barium sulfate according to a mass ratio of aluminum phosphate to zinc oxide modified shell powder of (4-7): (1-2), a mass ratio of aluminum phosphate to powdery silicicacid/silica fume of 7: (1-2) and a mass ratio of aluminum phosphate to barium sulfate of (4-7): (0.5-1). Through loading and sintering, the novel water glass curing agent is prepared. The preparationmethod realizes initial control of a curing speed of water glass and improves the water resistance and toughness after curing.

Description

technical field [0001] The invention belongs to the application field of water glass, and in particular relates to a water glass curing agent and a preparation method and application thereof. Background technique [0002] The use of water glass is very extensive, almost throughout all sectors of the national economy. In the chemical system, it is used to manufacture various silicate products such as silica gel, white carbon black, zeolite molecular sieve, sodium metasilicate pentahydrate, silica sol, layer silicon and instant powdered sodium silicate, potassium sodium silicate, etc. Basic raw material for silicon compounds. In economically developed countries, more than 50 kinds of deep-processing products using sodium silicate as raw materials have been developed, some of which have been used in high-tech, fine-tech fields; in light industry, it is an indispensable raw material for detergents such as washing powder and soap. It is also a water softener and a sedimentation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B22/16C01B25/36C04B22/06C04B28/26C04B38/02
CPCC01B25/36C04B22/16C04B28/26C04B40/0046C04B22/06C04B14/28C04B22/142C04B7/00C04B18/08C04B18/0409C04B18/04C04B24/085C04B22/124C04B16/0633C04B2103/302C04B22/068C04B38/02
Inventor 何灿黄映恒何海连梁瑶莹农毅
Owner 广西经正科技开发有限责任公司
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