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Graphene inorganic coating with pearlescent effect and preparation method

A technology for inorganic coatings and pearlescent effects, applied in the direction of alkali metal silicate coatings, coatings, etc., can solve the problems of formaldehyde purification effect durability and adhesion to be improved, difficult to achieve aldehyde removal effect, and short direct sunlight time , to achieve excellent aldehyde removal effect, good air permeability, and improve the effect of decoration

Inactive Publication Date: 2021-12-03
QINGDAO REALEADER ADVANCED MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional photocatalysts only produce energy level transitions under the condition of ultraviolet light, decomposing harmful substances
In the indoor space, the time of direct sunlight is short and the content of ultraviolet rays is low, so it is difficult to achieve an effective effect of removing aldehydes.
[0009] Patent application 201310158609.7 discloses a mica and graphene co-modified inorganic coating and its application method, which improves the adhesion and high temperature resistance of the inorganic coating, but only involves the addition of low content of mica and graphene. When the content is low, the performance of the coating is unstable, and the coating film is still brittle and easy to crack, and the defects of poor adhesion
Patent application 201710403471.0 discloses a building interior wall coating and its preparation method, which has the performance of removing formaldehyde and aging resistance, but the performance of formaldehyde purification effect persistence and adhesion needs to be improved

Method used

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  • Graphene inorganic coating with pearlescent effect and preparation method

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Embodiment approach

[0033] The present invention adopts an embodiment of the present invention, including the following components in parts by mass: 10-30 parts of inorganic resin, 0.05-1 part of graphene-modified anti-formaldehyde additive, and 0.05-0.5 part of multi-functional additive , 10-40 parts of deionized water, 5-8 parts of polymer emulsion, 0.05-0.5 parts of defoamer, 0.05-1 part of dispersant, 0.05-1 part of rheological additive, 0.1-0.5 part of thickening aid, 30-50 parts of pigments and fillers, 10-20 parts of pearl paste;

[0034] Among them, the inorganic resin is used to replace the existing commonly used polymer emulsion for the graphene modified anti-formaldehyde additive. The inner diameter of the inorganic resin is less than 5 microns, which is smaller than the particle size of the conventional polymer emulsion, so that the inorganic resin particles can effectively enter the bottom of the wall. In the material, the adhesion between the paint and the painted surface is improve...

Embodiment 1

[0040] One embodiment of the present invention comprises the following components in parts by mass: 10 parts of inorganic resins, 0.3 parts of graphene-modified anti-formaldehyde additives, 0.1 parts of multifunctional additives, 27.5 parts of deionized water, polymer 5 parts of emulsion, 0.2 parts of defoamer, 0.3 parts of dispersant, 1 part of rheological additive, 0.3 part of thickening additive, 45 parts of pigments and fillers (15 parts of titanium dioxide, 15 parts of kaolin, 15 parts of barium sulfate), pearlescent 10 parts of powder paste;

[0041] Among them, the graphene-modified anti-formaldehyde auxiliary agent is prepared as follows: the sheet-layer graphene with a single-layer rate greater than 75% is ultrasonically dispersed in deionized water, and after adding a surfactant and a coupling agent, the relationship between graphene and titanium dioxide The ratio is 1-5:1000, add nano-titanium dioxide and mix, stir for 40 minutes, dehydrate and dry at 105°C for 8 ho...

Embodiment 2

[0050] An embodiment of the present invention, the preparation method is the same as in Example 1, the difference is that the components are: 20 parts of inorganic resin, 0.2 part of graphene modified anti-formaldehyde auxiliary agent, 0.3 part of multifunctional auxiliary agent, 18.4 parts of deionized water, 5 parts of polymer emulsion, 0.3 part of defoamer, 0.2 part of dispersant, 0.1 part of rheological additive, 0.5 part of thickening additive, pigments and fillers (10 parts of titanium dioxide, 10 parts of kaolin, 20 parts of Pfizer ground calcium carbonate) in total 40 parts, 15 parts of pearl paste; inorganic resin is potassium silicate: silica sol is 1:1 configuration.

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Abstract

The invention discloses a graphene inorganic coating with a pearlescent effect and a preparation method, and belongs to the field of building material coatings, the graphene inorganic coating comprises the following components: inorganic resin, a graphene modified anti-formaldehyde auxiliary agent, a multifunctional auxiliary agent, deionized water, a polymer emulsion, a defoaming agent, a dispersing agent, a rheological auxiliary agent, a thickening auxiliary agent, a pigment filler and pearl powder slurry; and the problems that a coating is insufficient in formaldehyde removal effect, unstable in performance and prone to fading are solved, and the technical problems that the coating contains free formaldehyde and is insufficient in adhesive force and poor in environment-friendly effect are solved.

Description

technical field [0001] The invention belongs to the field of building material coatings, and in particular relates to a graphene inorganic coating with a pearlescent effect and a configuration method. Background technique [0002] Formaldehyde is a colorless irritating gas that can irritate human eyes and nose. Long-term exposure to formaldehyde may cause chronic respiratory diseases, damage the liver, nervous system and immune system, and cause cancer in severe cases. . According to CCTV reports, the average rate of formaldehyde exceeding the standard in newly installed residential buildings in my country is nearly 80%, and 68% of human diseases are related to indoor air (formaldehyde). Every year, 4.8 million people die from formaldehyde, of which 2.1 million are children. Control is imminent. [0003] Formaldehyde is contained in furniture boards such as furniture, flooring, and wood; chemical products such as paints, adhesives, and plastic products contain formaldehyde;...

Claims

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Application Information

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IPC IPC(8): C09D1/04C09D1/00C09D5/36C09D7/62C09D7/40
CPCC09D1/04C09D1/00C09D5/36C09D7/62C09D7/40
Inventor 李智璐连丽青揣会波
Owner QINGDAO REALEADER ADVANCED MATERIALS TECH
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