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A kind of nano-carbon composite diatomite and preparation method thereof

A technology of diatomite and nano-carbon, which is applied in the direction of conductive coatings and coatings, can solve the problems of easy powder falling, increased indoor dust volume, difficult cleaning, etc., achieves improved strength and wear resistance, and reduces electrostatic adsorption , the effect of reducing the speed of dust accumulation

Active Publication Date: 2018-05-22
SUZHOU FIRST ELEMENT NANO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, diatomite coatings also have many disadvantages, the most prominent of which are the difficulty of dust removal on the surface and the strength of the coating.
The interior decoration of the house is generally used for more than 20 years. During this period, diatomite will deposit a lot of dust on the surface after long-term use, and because of its uneven surface, it is extremely difficult to clean. It has become a popular choice in the domestic market, especially in China. Difficult problems for promotion under poor air quality
Another disadvantage of diatomite coating is the strength problem. Because the surface of diatomite coating is rough and uneven, many diatom mud products are easy to lose powder, which not only increases the amount of indoor dust, but also affects the appearance of the wall.

Method used

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  • A kind of nano-carbon composite diatomite and preparation method thereof
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  • A kind of nano-carbon composite diatomite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Choose diatomaceous earth, the main component is SiO 2 , while containing part of Al 2 o 3 , CaO, MgO, etc. and a small amount of organic matter, the particle size is about 0.7-1.5μm. Carbon nanotubes are selected as additives, with a diameter of about 70 nm and an average length of about 5 μm. Diatomaceous earth and carbon nanotubes were vacuum-dried at 105° C. and -0.9 MPa for 4 hours, respectively. Then it was tested that the water content of diatomaceous earth and carbon nanotubes were both less than 0.5wt.%. 100 g of carbon nanotubes and 900 g of diatomaceous earth were successively loaded into a vacuum stirrer, and then the stirring was started when the vacuum was evacuated to about -0.1 MPa. After timing for about 1.5 hours, the stirring was stopped, and the material was collected to obtain a composite diatomite containing 4 wt.% of carbon nanotubes. According to the mud coating test, compared with the diatomite without carbon nanotubes, the surface resistan...

Embodiment 2

[0023] Choose diatomaceous earth, the main component is SiO 2 , while containing part of Al 2 o 3 , CaO, MgO, etc. and a small amount of organic matter, the particle size is about 0.7-1.5μm. Carbon nanotubes are selected as additives, with a diameter of about 60 nm and an average length of about 5 μm. Diatomaceous earth and carbon nanotubes were vacuum-dried at 105° C. and -0.9 MPa for 4 hours, respectively. Then it was tested that the water content of diatomaceous earth and carbon nanotubes were both less than 0.5wt.%. 50 g of carbon nanotubes and 950 g of diatomaceous earth were successively loaded into a vacuum stirrer, and then the stirring was started when the vacuum was reduced to about -0.1 MPa. After timing for about 3 hours, the stirring was stopped, and the material was collected to obtain a composite diatomite containing 5 wt.% of carbon nanotubes. According to the mud coating test, compared with the diatomite without carbon nanotubes, the surface resistance of...

Embodiment 3

[0025] Choose diatomaceous earth, the main component is SiO 2 , while containing part of Al 2 o 3 , CaO, MgO, etc. and a small amount of organic matter, the particle size is about 0.1-0.5μm. Carbon nanotubes are selected as additives, with a diameter of about 40 nm and an average length of about 5 μm. Diatomaceous earth and carbon nanotubes were vacuum-dried at 105° C. and -0.9 MPa for 4 hours, respectively. Then it was tested that the water content of diatomaceous earth and carbon nanotubes were both less than 0.5wt.%. 50 g of carbon nanotubes and 950 g of diatomaceous earth were successively loaded into a vacuum stirrer, and then the stirring was started when the vacuum was reduced to about -0.1 MPa. After timing for about 3 hours, the stirring was stopped, and the material was collected to obtain a composite diatomite containing 5 wt.% of carbon nanotubes. According to the mud coating test, compared with the diatomite without carbon nanotubes, the surface resistance of...

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Abstract

The invention discloses a nano-carbon composite diatomite and a preparation method thereof. The specific steps of the method are: uniformly mixing diatomite and nano-carbon materials through vacuum mechanical stirring to prepare nano-carbon and diatomite uniformly dispersed. Composite diatomaceous earth. This product can be used as a coating after mixing with an appropriate amount of water. Compared with ordinary diatomaceous earth, it has the advantages of not being easy to stick to dust, high strength after molding, and high durability. The preparation method of the product is simple and easy for industrialization.

Description

technical field [0001] The invention relates to a nano-carbon composite diatomite and a preparation method thereof, belonging to the application field of inorganic non-metallic composite materials. Background technique [0002] In the newly renovated rooms, building materials, furniture, paint, floors, etc. usually emit formaldehyde, benzene, radon and other harmful substances, causing indoor air pollution and causing great harm to the human body. As an excellent environmental protection coating, diatomite has good thermal insulation effect, high absorption rate of harmful substances in the air, and can release negative oxygen ions. [0003] However, diatomite coatings also have many disadvantages, the most prominent of which are the difficulty of dust removal on the surface and the strength of the coating. The interior decoration of houses is generally used for more than 20 years. During this period, diatomite will deposit a lot of dust on the surface after long-term use, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C09D5/24
Inventor 肖伟李红
Owner SUZHOU FIRST ELEMENT NANO TECH
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