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Environmentally-friendly flame-retardant water-based inorganic coating for interior walls and preparation method of coating

A technology of interior wall paint and paint, applied in the field of paint, can solve problems such as shedding, mildew, and short service life

Inactive Publication Date: 2019-05-07
赵曦轮 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, although the existing water-based paints have avoided the shortcoming of releasing organic solvents into the air, the current common water-based paints use organic emulsions as film-formers, which have a relatively large odor and have water resistance, alkali resistance, The air permeability is relatively poor; however, some chemical raw materials such as acrylic monomers, emulsifiers, and initiators will be used in the production of these resin emulsions, which will have a certain impact on the environment; at the same time, the existing water-based coatings are prone to more disadvantages, such as Mildew, drumming, falling off, short service life, bring a lot of inconvenience to users

Method used

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  • Environmentally-friendly flame-retardant water-based inorganic coating for interior walls and preparation method of coating
  • Environmentally-friendly flame-retardant water-based inorganic coating for interior walls and preparation method of coating
  • Environmentally-friendly flame-retardant water-based inorganic coating for interior walls and preparation method of coating

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Experimental program
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Effect test

Embodiment approach

[0068] According to a preferred embodiment of the present invention, the coating comprises the following raw material components in weight ratio:

[0069] 10-40 parts by weight of water,

[0070] Silica sol 20~40 parts by weight,

[0071] Emulsion 4~6 parts by weight.

[0072] In a further preferred embodiment, the coating comprises the following raw material components in a weight ratio:

[0073] 15-35 parts by weight of water,

[0074] Silica sol 22~32 parts by weight,

[0075] Emulsion 3-5 parts by weight.

[0076] Wherein, in the present invention, the silica sol is used as the main film-former, and the emulsion is the auxiliary film-former to increase the flexibility of the coating. Wherein, since the volume shrinkage of silica sol is relatively large in the film-forming process, cracks are prone to occur, and in the present invention, the emulsion is added to modify the silica sol, so that the emulsion is filled in the gaps of the Si-O-Si network structure of the sili...

Embodiment 1

[0203] The preparation of embodiment 1 diatomaceous earth compound

[0204] Take 15mL of tetrabutyl titanate, 75mL of absolute ethanol, 7.5mL of distilled water and 1.5mL of acetic acid, stir and mix tetrabutyl titanate and absolute ethanol, then add acetic acid dropwise, and then slowly add distilled water dropwise to form TiO 2 Precursor gel, prepare multiple copies and store them for later use;

[0205] Weigh 30 g of diatomite powder, 0.8 g of graphene, and the TiO prepared above 2 Precursor gel 5g, add an appropriate amount of water to the three, stir and mix well, put it in a high-pressure reactor, and react at 150°C for 12 hours under magnetic stirring to obtain a mixed solution;

[0206] The mixed solution was dried at 60°C and placed in a nitrogen atmosphere furnace, and kept at 650°C for 2 hours to obtain the diatomite composite.

Embodiment 2

[0207] The preparation of embodiment 2 diatomaceous earth compound

[0208] Take 6 mL of tetrabutyl titanate, 75 mL of absolute ethanol, 10 mL of distilled water and 5 mL of acetic acid, stir and mix tetrabutyl titanate and absolute ethanol, then add acetic acid dropwise, and then slowly add distilled water dropwise to form TiO 2 Precursor gel, preparation of multiple TiO 2 The precursor gel is placed for use;

[0209] Weigh 28g of diatomite powder, 0.8g of graphene, and the TiO prepared above 2 Precursor gel 3.5g, add an appropriate amount of water to the three, stir and mix well, put it in a high-pressure reactor, and react at 150°C for 12 hours under magnetic stirring to obtain a mixed solution;

[0210] The mixed solution was dried at 60°C and placed in a nitrogen atmosphere furnace, and kept at 650°C for 2 hours to obtain a diatomaceous earth compound.

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Abstract

The invention discloses a water-based inorganic coating for interior walls and a preparation method of the coating. The coating comprises the following raw material components: water, a silica sol andan emulsion, wherein the silica sol has a silicon dioxide content of 25-30%, silicon dioxide particles have a particle size of 8-10 nm, and the silica sol has a pH value of 8-11; and the coating further comprises a stabilizing agent and a silane coupling agent, and can also comprise a pigment filler, a thickening agent, water-based bentonite, a pH regulating agent and a functional auxiliary agent. The inorganic coating for the interior walls provided by the invention uses the silica sol as a main film-forming material, thereby having good environmental protection, good fire resistance and flame retardancy, and good gas permeability; the coating uses the emulsion as an auxiliary film-forming material, so that the flexibility of the coating is increased; and meanwhile, alkalinity of the inorganic coating for the interior walls can inhibit bacteria and algae from growing, so that wall surfaces can be kept clean.

Description

technical field [0001] The invention relates to the field of coatings, in particular to water-based coatings, in particular to an environmentally friendly and flame-retardant water-based inorganic interior wall coating and a preparation method thereof. Background technique [0002] Traditional oil-based paints use organic solvents as solvents. In this way, volatile organic compounds (VOC) will be released, which will easily pollute the atmosphere and cause fire hazards during construction. Moreover, when used in interior wall coatings, organic solvents will be released indoors, directly endangering people's health. [0003] With the improvement of people's living standards, consumers' requirements for quality of life have also been greatly improved, and more and more attention has been paid to the problem of decoration pollution. Not only pay attention to the general performance of coatings, but also pay more attention to the non-toxic and harmless properties of coatings to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/18C09D5/08C09D5/14C09D7/65C09D7/61
Inventor 赵曦轮赵普平赵越超杨智
Owner 赵曦轮
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