Geopolymer-based water-based inorganic coating and preparation method thereof

A water-based inorganic coating and geopolymer technology, applied in fire-resistant coatings, coatings and other directions, can solve the problems of easy cracking and peeling of coatings, reduced crack resistance, and reduced coating adhesion, and achieves a simple and easy preparation process. The effect of improving crack resistance and improving interfacial adhesion

Inactive Publication Date: 2021-02-02
HEFEI UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Other comparative documents such as the coatings provided by CN110885602A, CN104446308A, and CN111039651A also all have reduced coating adhesion, reduced crack resistance, and easy cracking and peeling off of the coating.

Method used

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  • Geopolymer-based water-based inorganic coating and preparation method thereof
  • Geopolymer-based water-based inorganic coating and preparation method thereof
  • Geopolymer-based water-based inorganic coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of waterborne inorganic paint preparation method based on geopolymer technology, comprises the following steps:

[0036] (1) Weigh raw materials: 55 parts of metakaolin, 40 parts of powdered water glass, 2 parts of mica, 2 parts of titanium dioxide, 3 parts of magnesium oxide powder, 15 parts of silicon acrylic emulsion, and 50 parts of deionized water.

[0037] (2) Add the weighed metakaolin, mica powder, titanium dioxide and modifier to the container in turn, mix and stir evenly. spare.

[0038] (3) Add deionized water into the weighed powdered water glass and stir to dissolve. spare.

[0039] (4) Mix and stir the water glass solution obtained in step (3) with the powder in step (2), add silicon acrylic emulsion, place in a blender, and stir for 30 min at a speed of 2000 r / min to obtain water-based inorganic coating 1.

Embodiment 2

[0041] The preparation method of the present embodiment is the same as that of Example 1, except that 40 parts of powdered water glass in Example 1 are replaced with 45 parts of powdered water glass and 50 parts of powdered water glass to obtain water-based inorganic coating 2 and water-based inorganic coating 3 .

Embodiment 3

[0043] The preparation method of this embodiment is the same as that of Example 1, except that 50 parts of deionized water in Example 1 are replaced with 55 parts of deionized water and 60 parts of deionized water to obtain water-based inorganic coating 4 and water-based inorganic coating 5 .

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Abstract

The invention discloses a geopolymer technology-based water-based inorganic coating and a preparation method thereof, and the coating mainly comprises the following components: 50-60 parts of geopolymer metakaolin, 40-50 parts of powdery water glass, 1-5 parts of mica powder, 1-5 parts of titanium dioxide, 1-5 parts of a modifier, 10-20 parts of a silicone acrylic emulsion and 50-60 parts of deionized water. The coating is prepared by a simple powder mixing and stirring process. The geopolymer has high-temperature stability, high binding force and durability, low permeability and high chemicalcorrosion resistance, so that the prepared coating has good water resistance, fire resistance, crack resistance and scrub resistance, the market requirements are met, the production process is environmentally friendly, the raw materials are cheap and easy to obtain, the process is simple, and the energy consumption is low. The future development requirements of the coating industry are met, and the sustainable development concept is met.

Description

technical field [0001] The invention belongs to the field of composite materials and construction, and in particular relates to a water-based inorganic coating based on geopolymer technology and a preparation method thereof. Background technique [0002] In interior and exterior wall architectural coatings, water-based organic polymer resin coatings are widely used. Although water-based coatings overcome the shortcomings of solvent-based coatings that produce a large amount of harmful VOC, their flame retardancy and aging resistance still need to be further improved. Based on public safety and environmental protection considerations, the world and my country have further improved the flame retardant performance requirements of wall surface coatings in public building areas, and need to meet the non-combustible requirements, while common water-based coatings are difficult to achieve non-combustible performance due to high organic content. requirements. Reducing the content of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/18C09D7/61C09D7/65
CPCC09D1/00C09D5/18C09D7/61C09D7/65
Inventor 刘雪霆李缘范影刘长明
Owner HEFEI UNIV OF TECH
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