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Antibacterial and negative ion-releasing water-based inorganic interior wall coating and preparation method thereof

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

Inactive Publication Date: 2019-05-03
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 coatings avoid the shortcoming of releasing organic solvents into the air, the current general water-based coatings use organic emulsions as film-forming materials, which are prone to more disadvantages when used, such as mildew and bulging. , fall off, and the service life is short, which brings a lot of inconvenience to users; and it does not have the functions of degrading, adsorbing harmful substances, adjusting indoor air humidity, and releasing negative ions.

Method used

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  • Antibacterial and negative ion-releasing water-based inorganic interior wall coating and preparation method thereof
  • Antibacterial and negative ion-releasing water-based inorganic interior wall coating and preparation method thereof
  • Antibacterial and negative ion-releasing water-based inorganic interior wall coating and preparation method thereof

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Embodiment approach

[0076] According to a preferred embodiment of the present invention, the coating comprises the following raw material components in weight ratio:

[0077] 10-40 parts by weight of water,

[0078] Silica sol 20~40 parts by weight,

[0079] 4-12 parts by weight of diatomaceous earth.

[0080] In a further preferred embodiment, the coating comprises the following raw material components in a weight ratio:

[0081] 15-35 parts by weight of water,

[0082] Silica sol 20~35 parts by weight,

[0083] 6-10 parts by weight of diatomaceous earth.

[0084] In a further preferred embodiment, the coating includes the following raw material components in weight ratio:

[0085] 15-30 parts by weight of water,

[0086] Silica sol 24~30 parts by weight,

[0087] 8-10 parts by weight of diatomaceous earth.

[0088] In a further preferred embodiment, the modified nano-titanium dioxide / diatomaceous earth composite is obtained as follows:

[0089] Step a, stirring and mixing the titanium ...

Embodiment 1

[0225] The preparation of embodiment 1 modified nano-titanium dioxide / diatomite composite

[0226] 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;

[0227] Weigh 30 g of diatomite powder, 0.67 g of polyvinyl alcohol, 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;

[0228] 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 modified nano-titanium dioxide / diatomite composite.

Embodiment 2

[0229] The preparation of embodiment 2 modified nano-titanium dioxide / diatomite composites

[0230] 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;

[0231] Weigh 30 g of diatomite powder, 0.88 g of polyvinyl alcohol, and the TiO prepared above 2 3.5 parts of precursor gel, add appropriate amount of water to the three, stir and mix them evenly, put them in a high-pressure reactor, and react at 150°C for 12 hours under magnetic stirring to obtain a mixed solution;

[0232] 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 modified nano-titanium dioxide / diatomite composite.

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Abstract

The invention discloses a water-based inorganic interior wall coating and a preparation method thereof, the coating comprises the following raw materials: water, silica sol and diatomite; wherein thecontent of silicon dioxide in the silica sol is 25-30%, the particle size of silicon dioxide particles is 8-10 nm, and the pH value of the silica sol is 8-11; and the coating further comprises a negative ion source material, a stabilizer and a silane coupling agent, and also comprises pigments and fillers, a thickening agent, water-based bentonite, a pH regulator, a functional assistant and a resin emulsion. The inorganic interior wall coating takes the silica sol as a main film-forming material, and is good in environmental protection property and good in fireproof flame retardancy, the resinemulsion is taken as an auxiliary film-forming material to improve the flexibility of the coating, and meanwhile, the inorganic interior wall coating contains the nano titanium dioxide, the diatomite, negative ion powder and other functional materials, so that the coating has the functions of degrading and adsorbing harmful substances, adjusting indoor air humidity, releasing negative ions and the like; the coating is capable of inhibiting the growth of fungi and algae due to the alkalinity of the coating, so that the wall surface is kept clean.

Description

technical field [0001] The invention relates to the field of coatings, in particular to water-based coatings, in particular to a water-based inorganic interior wall coating capable of sterilizing bacteria and releasing negative ions 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 ...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D5/14C09D5/18C09D7/61C09D7/65
Inventor 赵曦轮赵普平赵越超杨智
Owner 赵曦轮
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