Diatom ooze capable of releasing anions and preparation method of diatom ooze

A technology of diatom mud and negative ions, which is applied in the field of decorative coatings, can solve the problems of reducing the utilization efficiency of photocatalyst decomposition materials, affecting the use effect, and agglomeration of nanomaterials, achieving good air purification effects, no secondary pollution, and good adhesion Effect

Inactive Publication Date: 2017-08-11
北京科技大学广州新材料研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some researchers have used photocatalyst media to improve the function of diatom mud to purify the air, but due to the disadvantages of agglomeration and difficult dispersion of nanomaterials, direct addition will greatly reduce the utilization efficiency of photocatalyst decomposition materials and affect the use effect.

Method used

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  • Diatom ooze capable of releasing anions and preparation method of diatom ooze
  • Diatom ooze capable of releasing anions and preparation method of diatom ooze
  • Diatom ooze capable of releasing anions and preparation method of diatom ooze

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The diatom ooze that releases negative ions in the present embodiment is prepared from the following raw materials by its weight percentage:

[0047]40% selected diatomite, 20% composite tourmaline powder, 2.5% rare earth oxide, 15% anatase titanium dioxide, 14% gelling material, 7% redispersible latex powder, 1.5% short cellulose ( The length is 1-3 mm); wherein the rare earth oxide is lanthanum oxide, and the cementitious material is wollastonite.

[0048] Composite tourmaline powder is prepared by the following methods:

[0049] a, dissolving 5g of sodium silicate in deionized water to obtain a sodium silicate solution with a mass concentration of 10%;

[0050] b. Disperse 0.7g surfactant (sodium dodecylbenzenesulfonate) evenly with 10g deionized water to obtain dispersion A, add dispersion A to the sodium silicate solution and disperse evenly to obtain dispersion B ;

[0051] c. Add 25g of nano-titanium dioxide to the dispersion B under constant temperature stirr...

Embodiment 2

[0058] The diatom ooze that releases negative ions in the present embodiment is prepared from the following raw materials by its weight percentage:

[0059] 45% selected diatomite, 15% composite tourmaline powder, 2% rare earth oxide, 20% anatase titanium dioxide, 10% gelling material, 6% redispersible latex powder, 2% short cellulose ( The length is 1-3 mm); wherein the rare earth oxide is cerium oxide, and the cementitious material is wollastonite.

[0060] The preparation method of composite tourmaline powder is with embodiment 1.

[0061] The negative ion-releasing diatom ooze of this example is prepared by the following method: Weigh the raw materials with an electronic weighing scale, add them into a dry grinder in proportion, and grind them thoroughly for 30 minutes to obtain the diatom ooze powder of this example.

[0062] The diatom mud powder material and water are mixed according to the ratio of 1:1.1 to form a paste slurry, which can be used.

Embodiment 3

[0064] The diatom ooze that releases negative ions in the present embodiment is prepared from the following raw materials by its weight percentage:

[0065] 35% selected diatomite, 25% composite tourmaline powder, 3% rare earth oxide, 20% anatase titanium dioxide, 11% gelling material, 5.5% redispersible latex powder, 0.5% short cellulose ( The length is 1-3 mm); wherein the rare earth oxide is yttrium oxide, and the cementitious material is wollastonite.

[0066] The preparation method of composite tourmaline powder is with embodiment 1.

[0067] The negative ion-releasing diatom ooze of this example is prepared by the following method: Weigh the raw materials with an electronic weighing scale, add them into a dry grinder in proportion, and grind them thoroughly for 40 minutes to obtain the diatom ooze powder material of this example.

[0068] The diatom mud powder material and water are mixed according to the ratio of 1:1.5 to form a paste slurry, which can be used.

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Abstract

The invention relates to diatom ooze capable of releasing anions and a preparation method of the diatom ooze. The diatom ooze is prepared from the following raw materials in percentage by weight: 10-50% of kieselguhr, 10-40% of composite tourmaline powder, 0.5-5% of rare earth oxide, 5-30% of titanium dioxide, 5-30% of a cementing material, 1-15% of redispersible powder and 0.1-2% of cellulose, wherein the composite tourmaline powder is mainly prepared from the following raw materials in percentage by weight: 50-80% of tourmaline powder, 10-40% of nanometer titania, 1-10% of sodium silicate and 0.5-1% of a surfactant. The diatom ooze is capable of continuously releasing the anions and a far infrared ray, has good air purification effect and human health effect, is high in purification efficiency and purification persistence and has good adhesive force.

Description

technical field [0001] The invention relates to the field of decorative coatings, in particular to a diatom ooze releasing negative ions and a preparation method thereof. Background technique [0002] With the improvement of living standards, people's demand for high-quality interior decoration materials is becoming more and more urgent. As a new indoor wall decoration material integrating performance and environmental protection, diatom mud itself has porous structure, huge specific surface area, strong adsorption performance, acid resistance and alkali resistance, and can be mixed with other materials. Prepared as a multifunctional decorative material, it can adjust indoor humidity and increase the comfort of living, and does not contain harmful substances. It has become a new favorite in the interior decoration industry. [0003] However, because the conventional diatom mud interior decoration materials are purely physical adsorption, there is a problem that the function...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/18C04B14/08
CPCC04B28/182C04B2111/00025C04B2111/00482C04B14/08C04B14/04C04B12/04C04B14/305C04B14/30C04B2103/0057C04B16/02C04B2103/40C04B24/20
Inventor 何新波张涛
Owner 北京科技大学广州新材料研究院
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