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Modified kieselguhr and preparation method thereof, and indoor decorative material containing modified kieselguhr and preparation method thereof

A technology of interior decoration and diatomite, which is applied in the application field of modified diatomite and its preparation, and preparation of interior decoration materials, which can solve the problem of reducing the adsorption capacity of diatomite to harmful substances and blocking the micropore structure of diatomite , Reduce the environmental performance of materials and other issues, and achieve the effect of no volatility in organic matter content, low organic matter content, and high integrity

Active Publication Date: 2013-01-30
长白朝鲜族自治县天宝硅藻土功能制品有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the addition of whitening agents such as titanium dioxide and organic substances, while reducing the content of diatomite in the material, will block the microporous structure of diatomite itself, reduce the adsorption capacity of diatomite to harmful substances, and more importantly Yes, the addition of organic matter will cause the material to release harmful gases to the human body, reducing the environmental performance of the material

Method used

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  • Modified kieselguhr and preparation method thereof, and indoor decorative material containing modified kieselguhr and preparation method thereof
  • Modified kieselguhr and preparation method thereof, and indoor decorative material containing modified kieselguhr and preparation method thereof
  • Modified kieselguhr and preparation method thereof, and indoor decorative material containing modified kieselguhr and preparation method thereof

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preparation example Construction

[0082] The tap density provided by the present invention is 450kg / m 3 ~490kg / m 3 The preparation method of the modified diatomite is divided into the following steps: firstly, obtain diatomite; then, take the diatomite, add sodium carbonate, activate it at a high temperature of 900°C to 1100°C after heating, and break it, namely Among them, the tap density of diatomite is not less than 500kg / m 3 ; The mass ratio of sodium carbonate to the diatomite is 1-3:100; the heating temperature is 600°C-900°C.

[0083] The present invention also provides a tap density of 450kg / m 3 ~490kg / m 3 The modified diatomite, its preparation method is divided into the following steps:

[0084] Step 1, obtaining diatomite;

[0085] Step 2. Take diatomaceous earth, add sodium carbonate, activate it at a high temperature of 900°C~1100°C after heating, and break it to get it;

[0086] The tap density of diatomite used in this method is not less than 500kg / m 3 ; The mass ratio of sodium carbonate...

Embodiment 1

[0124] Embodiment 1 tap density is 450kg / m 3 Preparation of Modified Diatomite

[0125] Take the diatomite raw ore, after a year of natural weathering, decomposition, and drying, select the part with a moisture content below 15% for crushing, and crush it to 30 mesh to 120 mesh; at the same time, further dry it to reduce the moisture content to 4%~ 6%; then select the qualified products with the required particle size of 80 mesh to 120 mesh through the air separation device. The obtained diatomite is detected by the national standard determination method, and its tap density is 500kg / m after determination. 3 .

[0126] Take the tap density as 500kg / m 3 Diatomite mixed with 1% sodium carbonate by mass, calcined at 600°C for 600 seconds, activated at 900°C for 60 seconds, so that a small amount of vitrified sodium silicate is produced on the surface of the micropores of diatomite, thereby thickening the individual diatoms The thin position of the surface increases the streng...

Embodiment 2

[0129] Embodiment 2 tap density is 470kg / m 3 Preparation of Modified Diatomite

[0130] Take the diatomite raw ore, after a year of natural weathering, decomposition, and drying, select the part with a moisture content below 15% for crushing, and crush it to 30 mesh to 120 mesh; at the same time, further dry it to reduce the moisture content to 4%~ 6%; then select the qualified products with the required particle size of 80 mesh to 120 mesh through the air separation device. The obtained diatomite is detected by the national standard determination method, and its tap density is 600 kg / m after determination. 3 .

[0131] Take the tap density as 600kg / m 3 Diatomite mixed with 2% sodium carbonate by mass, calcined at 750°C for 600 seconds, and activated at 1000°C for 50 seconds, so that a small amount of vitrified sodium silicate is produced on the surface of the micropores of diatomite, thereby thickening the individual diatoms The thin position of the surface increases the ...

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Abstract

The invention provides modified kieselguhr of which the tap density is 450-490 kg / m<3> and a preparation method thereof. The method comprises the following specific steps: acquiring kieselguhr; and adding sodium carbonate into the kieselguhr, heating, then activating at a high temperature of 900-1100 DEG C, and crushing. The modified kieselguhr provided by the invention has the characteristics of high whiteness, low tap density and high strength and has favorable adsorption property and heat-insulating property. Besides, the invention also provides an indoor decorative material containing the modified kieselguhr of which the tap density is 450-490 kg / m<3>, calcium hydroxide, sepiolite and film-forming assistant, and provides a preparation method thereof. The material is low in organic substance content, is nonvolatile, has high whiteness, low tap density and high strength, and ensures that the material can not volatilize harmful gas while ensuring favorable adsorption property and heat-insulating property, thereby being safer and more environment-friendly.

Description

technical field [0001] The technical field of building materials of the present invention particularly relates to a modified diatomite and its preparation method and its application in the preparation of interior decoration materials. Background technique [0002] For people, home is the most important resting place. However, the situation that affects people's health because of improper home decoration happens from time to time. The main reason for this chronic killer known as "interior decoration pollution syndrome" is: while the airtightness of the house is continuously improved and the air permeability is reduced, people use too many kinds of harmful chemicals when they carry out interior decoration. Material decoration materials, coupled with poor indoor ventilation, people living in this environment for a long time will gradually appear various abnormal symptoms, and some of them will be quite serious. [0003] In this case, many new interior decoration materials usi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B14/08C04B28/12
Inventor 庄广明
Owner 长白朝鲜族自治县天宝硅藻土功能制品有限公司
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