A composite multifunctional sepiolite/diatomite-based environmental protection indoor wall material

A composite function, sepiolite technology, applied in the field of indoor building materials, can solve the problems of high product cost, easy to fall off, influence, etc., and achieve the effect of improving efficiency

Active Publication Date: 2018-06-08
盐城市绿之韵环保建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large specific surface area and high surface free energy of nano functional powders, it is easy to agglomerate into large particles for the second time, which affects the normal performance of its corresponding functions.
In the mixing process of dry powder, due to the limited stirring force and depth, the dispersion of nano-functional powders is relatively difficult, and there are a lot of agglomeration phenomena, which not only reduces the functionality of environmentally friendly indoor wall materials, but also seriously wastes expensive nano-functional powders. Powder
Usually, in order to achieve a certain degree of functional effect, it is often necessary to add an excessive amount of nano-functional powder, resulting in a substantial increase in product cost
It can be seen that this method of directly adding nano functional powder and dry powder mixing with other components has many defects such as serious agglomeration of nano functional powder, inhibited functionality, large dosage, and high product cost.
In addition, there is another phenomenon that needs to be paid attention to. During the use of environmentally friendly indoor wall materials, because nano-functional powders are not firmly combined with other large-particle components, they are easily scraped by external forces and wind. It falls off, and the nano functional powder particles are extremely fine and difficult to settle, floating in the air for a long time, if inhaled into the human body, it will cause certain harm to health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: Taking the total weight of 1kg as the criterion, each component is weighed according to the mass ratio determined as follows: composite functional material 30%, heavy calcium carbonate 25%, ash calcium powder 15%, calcined kaolin 15%, silica sand 5% %, thickener 2%, wood fiber 2%, dispersible rubber powder 5%, thixotropic lubricant 0.5%, water reducer 0.5%. Add the weighed components into a high-speed disperser and stir at 250 r / min for 2 hours to obtain a mixed dry powder; add water and stir for 30 min according to the mass ratio of the mixed dry powder to water at 1:0.8, and the stirring speed is controlled at 1000 r / min, the obtained slurry can be used for construction.

Embodiment 2

[0027] Embodiment 2: Taking the total weight of 1kg as the criterion, each component is weighed according to the mass ratio determined as follows: composite functional material 40%, heavy calcium carbonate 20%, ash calcium powder 15%, calcined kaolin 10%, silica sand 5% %, thickener 2%, wood fiber 2%, dispersible rubber powder 5%, thixotropic lubricant 0.5%, water reducer 0.5%. Add the weighed components into a high-speed disperser and stir at 300 r / min for 2 hours to obtain a mixed dry powder; add water and stir for 25 minutes according to the mass ratio of the mixed dry powder to water at 1:1, and the stirring speed is controlled at 1200 r / min, the obtained slurry can be used for construction.

Embodiment 3

[0028] Embodiment 3: Taking the total weight of 1kg as the criterion, each component is weighed according to the mass ratio determined as follows: composite functional material 50%, heavy calcium carbonate 15%, ash calcium powder 10%, calcined kaolin 10%, silica sand 5% %, thickener 2%, wood fiber 2%, dispersible rubber powder 5%, thixotropic lubricant 0.5%, water reducer 0.5%. Add the weighed components into a high-speed disperser and stir at 400 r / min for 1.5 h to obtain a mixed dry powder; add water and stir for 20 min according to the mass ratio of the mixed dry powder to water at 1:1.2, and the stirring speed is controlled At 1500 r / min, the obtained slurry can be used for construction.

[0029] Prepare composite functional materials with the same content of sepiolite and diatomite for use in Examples 4-6. The specific preparation process steps are: (1) 40% sepiolite, 40% diatomite, and nano-TiO 2 10% powder and 10% nano-ZnO powder were weighed for each raw material; (2)...

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Abstract

The invention discloses a composite multifunctional sepiolite / diatomite based environment-friendly interior wall material. The composite functional material is prepared through the following method: (1) weighing the following raw materials in percentages by mass: 30 to 50% of sepiolite, 30 to 50% of diatomite, 10 to 15% of nanometer TiO2 powder and 10 to 15% of nanometer ZnO powder; (2) adding the nanometer TiO2 powder and the nanometer ZnO powder into water, carrying out dispersing under stirring so as to obtain a suspension with a mass concentration of 2 to 4%; (3) adding sepiolite and diatomite into the suspension, carrying out mixing under rapid stirring for 0.5 to 1 h, and carrying out filtering; and (4) subjecting a filtered product to drying, and carrying out calcination at 300 to 400 DEG C for 1 to 2 h, wherein filling materials comprise heavyweight calcium carbonate, ash calcium powder, calcined kaolin and silica sand; and additives comprise a thickening agent, wood fiber, dispersible adhesive powder, a thixotropic lubricating agent and a water reducing agent. According to the invention, by adopting a dip-calcination method, the environment-friendly interior wall material is prepared by loading nanometer TiO2 and nanometer ZnO on the surface of the sepiolite and the diatomite and mixing with the filling materials and the additives under stirring, so the problem of serious agglomeration phenomenon of the nanometer TiO2 and the nanometer ZnO in the environment-friendly interior wall material is effectively solved.

Description

technical field [0001] The invention discloses a composite multifunctional sepiolite / diatomite-based environmental protection indoor wall material, which belongs to the technical field of indoor building materials. Background technique [0002] With the improvement of people's living standards and the enhancement of health and environmental protection awareness, the quality of indoor living environment has been paid more and more attention. In the process of interior wall decoration, people not only pay attention to the beautiful decoration, but also pay attention to the harmlessness and functionality of materials when choosing wall materials. Among them, natural mineral-based environmentally friendly indoor wall materials with multiple functions are becoming more and more popular. first choice. At present, the functions of natural mineral-based environmentally friendly indoor wall materials mainly focus on the three major functions of humidity control, air purification, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/12C04B18/02C04B103/67C04B111/34
CPCC04B18/023C04B28/12C04B2103/67C04B2111/343C04B14/28C04B14/06C04B24/383C04B16/02C04B24/2623C04B24/28C04B24/24C04B14/042C04B14/08C04B14/305C04B14/30
Inventor 吉凤英薛祥吉
Owner 盐城市绿之韵环保建材有限公司
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