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Preparation method of diatomite-based building humidifying material

A moisture-conditioning material, diatomite technology, applied in ceramic products, applications, household appliances, etc., to achieve the effects of good moisture absorption and desorption performance, excellent mechanical strength, and improved moisture absorption and desorption capabilities.

Inactive Publication Date: 2020-04-14
安徽领珂数据科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of diatomite to produce products with the function of regulating air humidity is also in full swing. When the indoor relative humidity of these products is high, the ultra-fine microporous structure in diatomite can automatically absorb moisture in the air and store it. When the relative humidity in the indoor air decreases, the stored moisture can be released to adjust the humidity in the air, but there is still room for further development of the humidity control performance of these products

Method used

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  • Preparation method of diatomite-based building humidifying material
  • Preparation method of diatomite-based building humidifying material

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A preparation method of a diatomite-based building humidity control material:

[0029] Mix diatomaceous earth, sodium hydroxide, and sodium hexametaphosphate with a weight ratio of 1:0.003:0.005 to obtain a mixture evenly, add the mixture to the scrubbing machine, and then add a certain amount of distilled water. The solid-liquid ratio is 1:3, the preparation time of the scrubbing machine is 20 minutes, the scrubbing and dispersing time is 20 minutes, the rotation speed of the scrubbing machine is 1400r / min, the scrubbed material is filtered by suction, washed with water until neutral, and passed through a 200-mesh standard sieve after drying Separated to obtain refined diatomite; the refined diatomite and nitric acid with a mass fraction of 40% were mixed in a weight ratio of 1:8, then kept and stirred in a water bath at 95°C for 1 hour, filtered out and washed with water until neutral drying Add it dry to an inorganic salt solution with a mass concentration of 30% (in...

Embodiment 2

[0031] A preparation method of a diatomite-based building humidity control material:

[0032]Mix diatomaceous earth, sodium hydroxide, and sodium hexametaphosphate with a weight ratio of 1:0.003:0.005 to obtain a mixture evenly, add the mixture to the scrubbing machine, and then add a certain amount of distilled water. The solid-liquid ratio is 1:2, the preparation time of the scrubbing machine is 10 minutes, the scrubbing and dispersing time is 20 minutes, the rotation speed of the scrubbing machine is 1400r / min, the scrubbed materials are filtered by suction, washed with water until neutral, dried and passed through a 200-mesh standard sieve Separated to obtain refined diatomite; mix refined diatomite and nitric acid with a mass fraction of 40% in a weight ratio of 1:5, and then heat and stir in a water bath at 90°C for 1 hour. After the treatment, filter out and wash with water until neutral drying. Add it dry to an inorganic salt solution with a mass concentration of 30% (...

Embodiment 3

[0034] A preparation method of a diatomite-based building humidity control material:

[0035] Mix diatomaceous earth, sodium hydroxide, and sodium hexametaphosphate with a weight ratio of 1:0.003:0.005 to obtain a mixture evenly, add the mixture to the scrubbing machine, and then add a certain amount of distilled water. The solid-liquid ratio is 1:2, the preparation time of the scrubbing machine is 10 minutes, the scrubbing and dispersing time is 30 minutes, the rotating speed of the scrubbing machine is 1500r / min, the scrubbed materials are filtered by suction, washed with water until neutral, dried and passed through a 200-mesh standard sieve Separated to obtain refined diatomite; mix refined diatomite and nitric acid with a mass fraction of 40% in a weight ratio of 1:5, and then heat and stir in a water bath at 90°C for 1 hour. After the treatment, filter out and wash with water until neutral drying. Add it dry to an inorganic salt solution with a mass concentration of 30% ...

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Abstract

The invention provides a preparation method of a diatomite-based building humidifying material, and relates to the field of humidifying materials, and the method comprises the following steps: refining diatomite; preparing inorganic salt modified diatomite; mixing the inorganic salt modified diatomite with bentonite and straw fibers, then adding the mixture into emulsion, carrying out ultrasonic oscillation for 5-15 minutes, uniformly dispersing microcrystalline wax into the emulsion, heating to 40-50 minutes, filtering out, and carrying out wet pressing molding to obtain a blank; transferringthe blank into a hydrothermal reaction kettle, performing hydrothermal treatment for 5 to 10 hours at a temperature of 120 to 150 DEG C and a saturated vapor pressure of 0.5 to 1.2 MPa, and aging for10 to 20 days.The diatomite-based building humidifying material has the advantages that the mechanical strength is excellent, in addition, the moisture absorption and desorption performance is good,the moisture absorption rate reaches 23.2 percent, the moisture desorption rate reaches 19.1 percent, and the function of adjusting the air humidity is realized.

Description

technical field [0001] The invention relates to the field of humidity control materials, in particular to a preparation method of diatomite-based building humidity control materials. Background technique [0002] With the development of society and the improvement of living standards, people's awareness of environmental protection and health has been significantly enhanced, and the requirements for the comfort and safety of the living environment are getting higher and higher. Indoor temperature, air relative humidity, and air quality are important environmental parameters for the comfort of living and the impact on people's health. Therefore, the role and harm of humidity has been paid more and more attention in China, and the research on humidity control and regulation has also been paid more and more attention. When the relative humidity is lower than 40%, it will cause deformation and cracking of home improvement paint and bamboo and wood furniture, affecting human meta...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B38/08C04B20/04C04B20/02C04B14/08
CPCC04B20/023C04B20/04C04B28/001C04B2201/50C04B14/08C04B18/24C04B24/36C04B24/2623C04B24/32C04B40/024C04B38/08
Inventor 张立双
Owner 安徽领珂数据科技有限公司
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