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A composite multifunctional indoor wall material that releases negative ions for humidity control, antibacterial and air purification

A technology for multi-functional room and air purification, applied in the field of building materials for interior decoration, can solve the problems of high product cost, easy falling off, high surface free energy, and achieve the effects of improving efficiency, improving photocatalytic performance and strong antibacterial performance.

Active Publication Date: 2020-08-28
薛祥吉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to nano TiO 2 Powder, nano-ZnO powder, and ultrafine tourmaline powder have large specific surface area and high surface free energy, are in a state of unstable energy, and are very easy to agglomerate into secondary large particles, so it is difficult to disperse during the mixing process of dry powder, and there are a lot of The phenomenon of agglomeration inhibits the normal performance of various functions of indoor wall materials, and also leads to the problems of waste and high product cost due to the large amount of functional powder added
In addition, due to the nano-TiO 2 Powder, nano-ZnO powder, and ultra-fine tourmaline powder are not firmly combined with large-grained mineral components, and they are easily peeled off by external scratches and wind, while nano-powder particles are extremely fine and difficult to settle, and float in the air for a long time Will cause certain harm to human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: Based on the total weight of 1kg, weigh the components according to the following determined mass ratio: composite functional material 30%, heavy calcium powder 30%, calcined kaolin 20%, silica sand 10%, thickener 2% , Wood fiber 2%, dispersible rubber powder 4%, water reducing agent 2%. Add the weighed components into the high-speed disperser and stir at 250 r / min for 2 hours to obtain a uniform dry powder; according to the mass ratio of the mixed dry powder to water is 1:0.8, add water and stir for 30 min, and the stirring speed is controlled at 1000 r / min, the obtained slurry can be used for construction.

Embodiment 2

[0026] Example 2: Based on the total weight of 1kg, weigh the components according to the following determined mass ratio: composite functional material 40%, heavy calcium powder 25%, calcined kaolin 15%, silica sand 10%, thickener 2% , Wood fiber 2%, dispersible rubber powder 4%, water reducing agent 2%. Add the weighed components into the high-speed disperser and stir at 300 r / min for 2 hours to obtain a uniform dry powder; according to the mass ratio of the mixed dry powder to water is 1:1, add water and stir for 25 min, and the stirring speed is controlled at 1200 r / min, the obtained slurry can be used for construction.

Embodiment 3

[0027] Example 3: Based on the total weight of 1kg, weigh the components according to the following determined mass ratio: composite functional material 50%, heavy calcium powder 20%, calcined kaolin 10%, silica sand 10%, thickener 2% , Wood fiber 2%, dispersible rubber powder 4%, water reducing agent 2%. Add the weighed components into the high-speed disperser and stir at 400 r / min for 1.5 hours to obtain a uniform dry powder; according to the mass ratio of the mixed dry powder to water is 1:1.2, add water and stir for 20 min, the stirring speed is controlled At 1500 r / min, the obtained slurry can be constructed.

[0028] The composite functional materials used in Examples 4-6 were prepared according to the impregnation calcination method. The specific preparation process steps are: (1) According to the mass ratio of diatomaceous earth 40%, sepiolite 30%, ultrafine tourmaline powder 10%, nanometer TiO 2 10% of the powder and 10% of the nano-ZnO powder are weighed for each raw m...

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PUM

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Abstract

The invention discloses a composite multifunctional indoor wall material capable of regulating humidity, resisting bacteria, purifying air and releasing negative ions. The composite functional material comprises a composite functional material, a filler and an auxiliary agent; the composite functional material is a ZnO / TiO2 / tourmaline / porous mineral composite material; the filler comprises heavy calcium powder, calcined kaolin and silica sand; and the auxiliary agent comprises dispersible rubber powder, a thickening agent, wood fibers and a water reducing agent, wherein the mass ratio of eachcomponent is as follows: 30-50% of the composite functional material, 20-30% of the heavy calcium powder, 10-20% of the calcined kaolin, 5-10% of the silica sand, 2-4% of the dispersible rubber powder, 1-2% of the thickening agent, 1-2% of the wood fibers, and 1-2% of the water reagent. According to the invention, nano TiO2 particles, nano ZnO particles and superfine tourmaline particles are loaded on the surface of the porous mineral through a dipping calcining method or a hydrolysis precipitation method for preparing the ZnO / TiO2 / tourmaline / porous mineral composite material, and then the composite material is stirred and mixed with the corresponding filler and auxiliary agent to prepare the indoor wall material, so that the problem that the serious agglomeration phenomenon of nano TiO2 powder, nano ZnO powder and superfine tourmaline particles in indoor wall materials is effectively solved.

Description

Technical field [0001] The invention discloses a composite multifunctional indoor wall material capable of adjusting humidity, antibacterial and purifying air to release negative ions, and belongs to the technical field of building materials for indoor decoration. Background technique [0002] At present, the functions of indoor wall materials mainly focus on humidity control, antibacterial, air purification and release of negative ions. [0003] The humidity control function is mainly based on the strong adsorption of porous minerals such as diatomite, sepiolite and attapulgite. Because these porous minerals have a developed pore structure and a large specific surface area, they have adsorption and desorption effects on water molecules, so they can automatically adjust the indoor environmental humidity, that is, when the indoor environmental humidity is high, they can absorb moisture to reduce the indoor environmental humidity. When the indoor humidity is low, the humidity can be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B30/00C04B30/02C04B103/10C04B103/67
CPCC04B30/00C04B30/02C04B40/0042C04B2103/10C04B2103/67C04B2111/00017C04B2111/00482C04B14/30C04B14/305C04B14/04C04B14/46C04B14/4643C04B14/08C04B14/042C04B14/36C04B14/28C04B14/106C04B14/06C04B18/26C04B2103/44C04B2103/302C04B2103/0057
Inventor 薛祥吉
Owner 薛祥吉