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A kind of silica gel coating film and preparation method thereof

A technology of silica gel and coating, which is applied in coatings, devices for coating liquid on surfaces, special surfaces, etc., can solve the problems of lower product yield, easy tearing, low tensile strength, etc., to improve efficiency and improve Adhesion, enhance the effect of tensile strength

Active Publication Date: 2021-05-18
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 silicone 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 silica gel coating film and preparation method thereof
  • A kind of silica gel coating film and preparation method thereof
  • A kind of silica gel coating film and preparation method thereof

Examples

Experimental program
Comparison scheme
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preparation example Construction

[0052] The preparation method of described modified acrylate adhesive comprises:

[0053] (1) Provide raw materials according to the formula;

[0054] (2) Methyl methpropionate, butyl acrylate, acrylic acid, acrylonitrile, phenylacetic acid, N-hydroxyacrylamide, initiator and calculated 60-70% emulsifier and water are added to the container for heating, Raise the temperature to 70-80°C, react for 3 hours, keep warm for 2 hours, cool to room temperature and filter to obtain the mixed solution, and adjust the pH value of the mixed solution to 7.0;

[0055] (3) Add the remaining emulsifier and water used in step (2) into the container, and heat up to 70-80°C while stirring;

[0056] (4) Add the mixed solution of step (2) dropwise to the emulsifier of step (3), the time is 3-3.5h, keep warm for 2-2.5h after the dropwise addition, filter after cooling room temperature, adjust the pH of the filtrate to 7.0, the modified acrylate adhesive was obtained.

[0057] In the present inve...

Embodiment 1

[0074] A silicone coating film comprising aluminum foil and a silicone coating disposed on the aluminum foil;

[0075] The silica gel coating is made up of the following raw materials in parts by weight:

[0076] Silicone 80 parts

[0077] Adhesive 1.6 parts

[0078] Thickener 0.08 parts;

[0079] The average pore distance of the silica gel is 2.45-2.85nm, and the surface area is 680-720m 2 / g, the pore volume is 0.36-0.38ml / g, the thickener is carboxymethyl cellulose 1000mm 2 / s, the adhesive is a cross-linked resin.

Embodiment 2

[0081] A silicone coating film comprising aluminum foil and a silicone coating disposed on the aluminum foil;

[0082] The silica gel coating is made up of the following raw materials in parts by weight:

[0083] Silicone 90 parts

[0084] Adhesive 1.8 parts

[0085] Thickener 0.09 parts;

[0086] The average pore distance of the silica gel is 2.45-2.85nm, and the surface area is 680-720m 2 / g, the pore volume is 0.36-0.38ml / g, the thickener is hydroxyethyl cellulose, and the viscosity of the thickener is 1100mm 2 / s, the adhesive is water-based acrylic resin.

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Abstract

The invention discloses a silica gel coating film, which comprises a substrate and a silica gel coating arranged on the substrate. The silica gel coating is composed of silica gel, an adhesive and a thickener. Correspondingly, the invention also discloses a preparation method of the silica gel coating film. The silica gel coating of the present invention cooperates and interacts with the silica gel, the adhesive and the thickener, so that the silica gel coating has its own adhesion properties and can directly adhere to the substrate, so a thicker silica gel coating can be formed , thereby improving 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 silica gel 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 adso...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C09D7/65C09D7/43B05D5/00B05D7/14B05D7/24
Inventor 刘福海
Owner FOSHAN SINO SCI NANO TECH MATERIAL CO LTD