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Aerogel used for anti-haze paint, and preparation method thereof

An airgel and anti-smog technology, applied in chemical instruments and methods, coatings, inorganic chemistry, etc., can solve the problems of poor anti-smog performance and achieve good adhesion, stable performance, and low cost

Active Publication Date: 2018-06-08
江苏晨光涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the relatively poor anti-haze performance of existing coatings, and provide an aerogel for anti-haze coatings and a preparation method thereof

Method used

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  • Aerogel used for anti-haze paint, and preparation method thereof
  • Aerogel used for anti-haze paint, and preparation method thereof
  • Aerogel used for anti-haze paint, and preparation method thereof

Examples

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preparation example Construction

[0041] Specifically, an airgel for anti-haze coatings of the present invention is prepared by the following steps:

[0042] Step 1, preparation of nano Ag-carbon microspheres

[0043] Adding AgNO to the suspension of carbon microspheres with a mass concentration of 0.3-0.5% wt 3 solution to obtain a mixed solution, and the Ag in the mixed solution + The concentration is 1~1.5mol / L, the obtained carbon microspheres-AgNO 3 The mixed solution was stirred with a 180-220rpm magnetic rotor for 20-24h, then centrifuged at a speed of 2800-3000rpm for 10-15min to remove excess silver ions, and then the obtained nano-Ag-carbon microspheres were washed with distilled water and alcohol, and then washed again with After ultrasonic dispersion for 45-60 minutes, uniform nanometer Ag-carbon microspheres can be obtained. The carbon microspheres have a hollow structure with a specific surface area of ​​1800-2200 g / m 2 , the size of the nano-silver ions in the obtained nano-Ag-carbon microsp...

Embodiment 1

[0054] A method for preparing an airgel for anti-haze coatings in this embodiment, the schematic diagram and flow chart of the preparation process are as follows image 3 , Figure 4 As shown, it specifically includes the following steps:

[0055] (1) Preparation of carbon microspheres: using cellulose as a raw material, carbon microspheres were prepared by hydrothermal carbonization.

[0056] Specifically, weigh 0.8g of cellulose into a 20ml sample bottle, add 15mL of deionized water, stir magnetically for 30min at a speed of 30r / min, and disperse the cellulose evenly in the solution, then place it in a 25mL Inside the hydrothermal reactor. After sealing the hydrothermal reaction kettle, put it into a muffle furnace and keep it constant for 7 hours at 220°C, and then naturally cool it to room temperature in the muffle furnace. The substance in the lower layer of the hydrothermal reaction kettle was suction-filtered, washed with absolute ethanol and distilled water, and dri...

Embodiment 2

[0063] A kind of preparation method of graphene / Ag-carbon microsphere airgel coating of the present embodiment, its preparation process schematic diagram and flow chart are as follows image 3 , Figure 4 As shown, it specifically includes the following steps:

[0064] (1) Preparation of carbon microspheres: using cellulose as a raw material, carbon microspheres were prepared by hydrothermal carbonization.

[0065]Specifically, weigh 0.8g of cellulose into a 20ml sample bottle, add 10mL of deionized water, stir magnetically at a speed of 40r / min for 20min, and disperse the cellulose evenly in the solution, then place it in a 25mL Inside the hydrothermal reactor. After sealing the hydrothermal reaction kettle, put it into a muffle furnace and keep it constant for 8 hours at 200°C, and then naturally cool it to room temperature in the muffle furnace. The substance in the lower layer of the hydrothermal reaction kettle was suction-filtered, washed with absolute ethanol and dis...

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Abstract

The invention discloses an aerogel used for anti-haze paint, and a preparation method thereof, and belongs to the technical field of coating new material. The preparation method comprises following steps: firstly, nanometer Ag-carbon microsphere is prepared, and then is mixed with an AgNO3 solution, and stirring, centrifugation, washing, and ultrasonic dispersion are carried out so as to obtain uniform nanometer Ag-carbon microsphere; an oxidized graphene suspension fluid is added into the nanometer Ag-carbon microsphere, 5 to 10wt% of cysteine is added, and stirring is carried out so as to obtain a hydrogel mixture; the hydrogel mixture is subjected to treatment in hot oil of 75 to 85 DEG C for 8 to 10h, and washing and freeze drying post-treatment are carried out so as to obtain the graphene / Ag-carbon microsphere aerogel. The aerogel possesses extremely excellent VOCs absorption performance and self-degradation capacity, and anti-haze effect can be improved effectively via adding theaerogel into paint as an additive.

Description

technical field [0001] The invention belongs to the technical field of new coating materials, and more specifically relates to an aerogel for an anti-smog coating and a preparation method thereof. Background technique [0002] With the continuous growth of my country's national economy and the continuous improvement of people's living standards, environmental protection has become a main theme for people to pursue a healthy and green life. As people have higher and higher requirements for coatings for indoor and outdoor decoration, more and more people focus on anti-smog and environmental protection coatings in the process of choosing functional coatings. Forest-like fresh air", therefore, it is of great significance to research and develop coatings with anti-smog effect. [0003] Graphene is the thinnest and strongest material known to human beings. It contains a single layer of carbon atoms. These atoms are connected in a honeycomb arrangement. The thickness of graphene i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/62C01B32/348
Inventor 冒海燕李保松缪国元黄润州杨蕊兰平梅长彤周晓燕周定国储富强马宇飞
Owner 江苏晨光涂料有限公司
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