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A kind of molecular sieve coating film and preparation method thereof

A molecular sieve and coating technology, applied in the direction of coating, etc., can solve the problems of lower product yield, low tensile strength of aluminum foil, easy to tear, etc., and achieve the effect of improving efficiency, increasing adhesion, and improving hygroscopicity

Active Publication Date: 2021-07-02
FOSHAN SINO SCI NANO TECH MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low tensile strength of the existing molecular sieve aluminum foil, the aluminum foil is easy to tear when stamping, reducing the yield of the product

Method used

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  • A kind of molecular sieve coating film and preparation method thereof
  • A kind of molecular sieve coating film and preparation method thereof
  • A kind of molecular sieve coating film and preparation method thereof

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preparation example Construction

[0057] Correspondingly, the present invention also provides a kind of preparation method of molecular sieve coating film, comprising:

[0058] Provide the substrate;

[0059] Mix 80-150 parts of molecular sieve, 1.6-3 parts of water-soluble polymer substance, 0.08-0.15 parts of thickener and water to obtain a molecular sieve coating mixture, the viscosity of which is 40-60mm 2 / s;

[0060] Apply the molecular sieve coating mixture evenly on the substrate;

[0061] The substrate coated with the molecular sieve coating is dried at a temperature of 150-300°C.

[0062] The invention adjusts the viscosity of the molecular sieve coating mixture to 40-60mm 2 / s, not only can make the mixture evenly coated on the substrate, but also can improve the coating efficiency. If the viscosity of the molecular sieve coating mixture is lower than 40mm 2 / s, then the adhesive force of molecular sieve coating reduces, and reduces the thickness of single coating molecular sieve coating, incre...

Embodiment 1

[0065] A molecular sieve coating film, comprising aluminum foil and a molecular sieve coating arranged on the aluminum foil;

[0066] The molecular sieve coating consists of the following raw materials in parts by weight:

[0067] Molecular sieve 80 parts

[0068] 1.6 parts of water-soluble polymer

[0069] Thickener 0.08 parts;

[0070] The average pore distance of the molecular sieve is 2.7-3.1nm, and the surface area is 720-750m 2 / g, the pore volume is 0.3-0.4ml / g, the thickener is carboxymethyl cellulose 1000mm 2 / s, the water-soluble macromolecular substance is carboxymethyl starch, and the molecular weight of the water-soluble macromolecular substance is 18000.

Embodiment 2

[0072] A molecular sieve coating film, comprising aluminum foil and a molecular sieve coating arranged on the aluminum foil;

[0073] The molecular sieve coating consists of the following raw materials in parts by weight:

[0074] Molecular sieve 90 parts

[0075] 1.8 parts of water-soluble polymer substances

[0076] Thickener 0.09 parts;

[0077] The average pore distance of the molecular sieve is 2.7-3.1nm, and the surface area is 720-750m 2 / g, the pore volume is 0.3-0.4ml / g, the thickener is hydroxyethyl cellulose, and the viscosity of the thickener is 1100mm 2 / s, the water-soluble macromolecular substance is starch acetate and hydrolyzed polyacrylamide, and the molecular weight of the water-soluble macromolecular substance is 19,000.

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Abstract

The invention discloses a molecular sieve coating film, which comprises a substrate and a molecular sieve coating arranged on the substrate. The molecular sieve coating is composed of molecular sieves, water-soluble high molecular substances and thickeners. Correspondingly, the invention also discloses a preparation method of the molecular sieve coating film. The molecular sieve coating of the present invention cooperates and interacts with the molecular sieve, the water-soluble polymer substance and the thickener, so that the molecular sieve coating has its own adhesion property and can be directly adhered to the substrate, so a thicker molecular sieve can be formed coating, thereby increasing the hygroscopicity of the film. In addition, the preparation method of the present invention is simple and can reduce the production process and time.

Description

technical field [0001] The invention relates to the technical field of coating films, in particular to a molecular sieve coating film and a preparation method thereof. Background technique [0002] With the development of our country's economy and the continuous improvement of people's living standards, the requirements for ambient air quality are also increasing. An energy-saving ventilation system is being developed and utilized. Up to now, the runner and adsorption materials have developed to the fourth generation. , using advanced solid adsorption technology, it can operate continuously and stably with large-load air humidity control, especially in low-temperature and low-humidity conditions, it can achieve an ultra-low air dew point of -70°C. At present, the adsorption and separation of air solids mainly adopts the turntable metal adsorption body. During the dehumidification process, the adsorption turntable rotates slowly under the drive of the driving device. When the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C09D7/43C09D7/65
Inventor 刘福海
Owner FOSHAN SINO SCI NANO TECH MATERIAL CO LTD
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