Inorganic waterproof anti-aging external wall coating and preparation method thereof

An exterior wall coating and anti-aging technology, applied in the direction of coating, etc., can solve the problems of poor adhesion, easy cracking of film formation, environmental impact, etc., and achieve the effect of low equipment requirements, not easy to absorb dust, and excellent chemical resistance

Active Publication Date: 2016-01-20
深圳力效新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Inorganic coatings that use silica sol as a film-forming substance have always been troubled by their shortcomings such as easy cracking and poor adhesion. It is inevitable to organically modify them or compound them with emulsions to prepare organic-inorganic hybrid coatings. will have some impact on the environment

Method used

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  • Inorganic waterproof anti-aging external wall coating and preparation method thereof

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Effect test

Embodiment 1

[0029] An inorganic waterproof and aging-resistant exterior wall paint, which is composed of the following raw materials in parts by weight: silica sol: 56; sepiolite: 10; aluminum hydroxide: 8; heavy calcium powder: 6; inorganic mineral pigment: 8; mica : 10; magnesium aluminum silicate: 0.8.

[0030] The preparation method of the above-mentioned inorganic waterproof and aging-resistant exterior wall paint is implemented according to the following steps.

[0031] (1) Add sepiolite, aluminum hydroxide and heavy calcium powder into the silica sol according to the measurement, soak for 2 hours, and then disperse at 6000r / min for 10 minutes.

[0032] (2) Add mica and inorganic mineral pigments according to the amount, soak for 1 hour, and then disperse at 3000r / min for 20 minutes until the fineness is less than 50μm; control the system temperature below 50°C.

[0033] (3) Reduce the stirring speed to 800r / min, add magnesium aluminum silicate according to the metered amount, and ...

Embodiment 2

[0036] An inorganic waterproof and aging-resistant exterior wall paint, which is composed of the following raw materials in parts by weight: silica sol: 58; sepiolite: 10; aluminum hydroxide: 10; heavy calcium powder: 4; inorganic mineral pigments: 6; Limestone: 8; magnesium aluminum silicate: 0.6.

[0037] The preparation method of the above-mentioned inorganic waterproof and aging-resistant exterior wall paint is implemented according to the following steps.

[0038] (1) Add sepiolite, aluminum hydroxide and heavy calcium powder into the silica sol according to the measurement, soak for 2 hours, and then disperse at 6000r / min for 10 minutes.

[0039] (2) Add wollastonite and inorganic mineral pigments according to the amount, soak for 1 hour, and then disperse for 20 minutes under the condition of 3000r / min, until the fineness is less than 50μm; control the system temperature below 50°C.

[0040] (3) Reduce the stirring speed to 800r / min, add magnesium aluminum silicate acc...

Embodiment 3

[0043] An inorganic waterproof and aging-resistant exterior wall paint, which is composed of the following raw materials in parts by weight: silica sol: 55; sepiolite: 10; aluminum hydroxide: 6; heavy calcium powder: 4; inorganic mineral pigments: 6; Zinc: 5; Aluminum Oxide: 2; Magnesium Aluminum Silicate: 0.8.

[0044] The preparation method is the same as above.

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Abstract

The invention discloses an inorganic waterproof anti-aging external wall coating and a preparation method thereof. The inorganic waterproof anti-aging external wall coating is prepared from, by weight, 55-60 parts of silica solution, 8-12 parts of sepiolite, 6-10 parts of aluminium hydroxide, 6-10 parts of pigment, 8-18 parts of filler and 0.5-1 part of thickening agent. The preparation method includes the steps of adding sepiolite, aluminium hydroxide and calcium powder to a silica solution to be soaked for 2 h and then dispersed for 10 min at the rotating speed of 6000 r/min, adding other filler to be soaked for 1h and dispersed for 20 min at the rotating speed of 3000 r/min till the fineness is smaller than 50 microns, reducing the rotating speed to 800 r/min, adding thickening agent to be evenly dispersed, and obtaining the target product. The coating has excellent waterproof performance and aging resistance, does not contain any organic components, and is free of toxin and environmentally friendly; the preparation method is easy to operate, low in device requirement and suitable for industrial large-scale production.

Description

technical field [0001] The invention belongs to the technical field of architectural coatings, in particular to an inorganic waterproof and aging-resistant exterior wall coating and a preparation method thereof. Background technique [0002] The paint industry is a unique raw material-intensive manufacturing industry. In the production process, most organic paints use a large amount of solvents, pigments and additives that are harmful to the human body. Some of these harmful solvents cause harm to the human body in a short period of time, and some Long-term emissions and releases have gradually caused great pollution to the environment. According to the analysis and investigation of the sources of VOC (volatile organic compounds) emitted into the atmosphere, the world emits about 20 million tons of VOC into the atmosphere every year, of which the coating industry accounts for about 20%, and has become an important source of environmental pollution. One, as people pay more a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D7/12
Inventor 张连红王盛鑫梁红玉蒋林时康晓雪
Owner 深圳力效新材料科技有限公司
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