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Super-weather resistant alkali-activated-fly ash-slag bicomponent outer wall inorganic coating

An inorganic coating, fly ash technology, applied in climate sustainability, sustainable waste treatment, solid waste management, etc., can solve problems such as unsatisfactory scrub resistance, low standards, and unusability

Inactive Publication Date: 2010-11-10
王建华 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many varieties of inorganic architectural coatings for exterior walls. For example, the coating film of one-component exterior wall coatings made of silica sol is brittle and easy to crack. The inorganic coatings for exterior walls based on sodium silicate or potassium silicate have unsatisfactory scrubbing resistance. , standard JG / T26-2002 scrub resistance ≥ 1000 times, the standard is too low
The 2001.12 issue of New Building Materials Magazine introduced a kind of "Alkali Slag Inorganic Coating", which can withstand more than 3,000 times of washing. However, due to the short setting time of the coating, the brushing operation time cannot exceed half an hour and cannot be used.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0013] First, use sodium silicate and water as the base material, high alumina cement, slag, titanium dioxide, pigment, talcum powder, redispersible latex powder, hydroxyethyl cellulose, naphthalene-based water reducer, and powdery defoamer as Filler, after the raw material is selected, prepare the base material and filler in the following manner:

[0014] The base material formula is: sodium silicate (volume): water (volume)=1:1;

[0015] The filler formula is weight (%): high alumina cement 46%, slag 25%, titanium dioxide 10%, pigment 3%, talcum powder 10%, redispersible latex powder 5%, hydroxyethyl cellulose 0.4%, naphthalene series 0.55% water reducer, 0.05% powder defoamer; the base material and filler of the paint are packaged separately;

[0016] The mixing ratio of the base material and the filler of the paint during use is: base material (volume): filler (weight) = 1: 1;

[0017] After the ratio of raw materials is selected, the production process is as follows: 1....

example 2

[0019] First, use sodium silicate and water as the base material, and use fly ash, slag, pigment, talcum powder, redispersible latex powder, hydroxyethyl cellulose, naphthalene-based water reducer, and powdered defoamer as fillers. , after the raw materials are selected, the base material and filler are prepared in the following manner:

[0020] The base material formula is: sodium silicate (volume): water (volume)=1:1;

[0021] The filler formula is weight (%): slag 36%, fly ash 42%, pigment 5%, talcum powder 10%, redispersible latex powder 6%, hydroxyethyl cellulose 0.4%, naphthalene-based water reducer 0.55% , powdery defoamer 0.05%; the base material and filler of the paint are packaged separately;

[0022] The mixing ratio of the base material and the filler of the paint during use is: base material (volume): filler (weight) = 1: 1;

[0023] After the ratio of raw materials is selected, the production process is as follows: 1. Base material processing is to mix and stir...

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Abstract

The invention provides a super-weather resistant alkali-activated-fly ash-slag bicomponent outer wall inorganic coating. In the coating, sodium water glass and water are selected as base materials, and pulverized fuel ash, high-aluminum cement, slag, titanium white powder, pigment, talcum powder, redispersable latex powder, hydroxyethylcellulose, a naphthalene-based water reducing agent and a powdery antifoaming agent are used as padding. By testing the washing resistance of the coating of the invention, a specimen is washed 25,000 times without bubbling or cracking or dropping; by testing the water resistance, the specimen is soaked for 4,320 hours without bubbling or cracking or dropping; by testing acid rain resistance, the specimen is soaked in a solution, of which the pH is equal to 3 and is adjusted every day to be maintained to be 3, for 960 hours without bubbling or cracking or dropping; by testing salt resistance and alkali resistance, the specimen is soaked in 0.2mol / L of KOH solution of 5 percent of NaCl for 960 hours without bubbling or cracking or dropping; by testing bonding strength, the specimen has the bonding strength of 1.14MPa; and by testing flexibility, the specimen is qualified by 100 percent by being inspected through a grid scoring method of 1mm.

Description

Technical field [0001] The invention relates to the technical field of production of architectural exterior wall coatings, in particular to the technical field of production of ultra-weather-resistant alkali fly ash slag two-component inorganic coatings for exterior walls. Background technique [0002] Coatings are composed of base materials and fillers. The base materials and fillers do not undergo chemical reactions. The base materials are film-forming materials. The performance of coatings is determined by the properties of the base materials. Therefore, materials with good performance are often used as base materials, such as fluorine coatings. Its base material fluorine material has good performance, making it a high-grade paint integrating decoration, beautification and anti-corrosion. Another example is the potassium silicate two-component exterior wall paint, which is modified with a curing agent, and the modified product is used as a base material, and the base mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B18/08C04B18/12C04B18/14C04B16/04
CPCC04B2111/00517C04B28/26Y02W30/91C04B7/32C04B14/042C04B14/305C04B18/08C04B18/141C04B24/226C04B24/26C04B24/383C04B40/0028C04B2103/50C04B2103/54C04B14/06C04B14/303
Inventor 王建华熊作云
Owner 王建华
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