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A coating type waterborne two-component fluorocarbon coating and its preparation and application

A fluorocarbon coating and coating technology, applied in polyurea/polyurethane coatings, coatings, photovoltaic power generation, etc., can solve problems such as high curing temperature, affecting system stability, and not conforming to PET materials

Active Publication Date: 2017-05-31
ETERNAL CHEM (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the two patents, in order to increase the hardness of the fluoropolymer layer, polymer fillers were added to increase the hardness, and there was a problem of uniform dispersion of polymer fillers in the coating solution, which in turn affected the stability of the system.
Furthermore, the curing temperature of the coating solution on the base material is 160°C to 170°C × 3 to 5 minutes, which does not meet the heat-resistant conditions of PET materials at 150°C (the production process of the general manufacturer of the coated back film : 140℃~150℃×2~3 minutes), and the curing temperature is higher, the curing time is longer, and consumes more energy, which is not conducive to environmental protection and energy saving

Method used

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  • A coating type waterborne two-component fluorocarbon coating and its preparation and application
  • A coating type waterborne two-component fluorocarbon coating and its preparation and application
  • A coating type waterborne two-component fluorocarbon coating and its preparation and application

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Experimental program
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preparation example Construction

[0082] Preparation of waterborne two-component fluorocarbon coating

[0083] The present invention also provides a preparation method of water-based two-component fluorocarbon coating, comprising the steps of:

[0084] (1) Preparation of component A: first add deionized water according to the formula amount, slowly add anti-sedimentation agent under stirring, disperse until it becomes a uniform viscous slurry liquid, add wetting dispersant and defoamer and stir for 15 minutes , then add the pigment, disperse evenly, and grind it with a grinder until the fineness is less than 10 μm, filter to remove the grinding medium, add fluorocarbon emulsion, co-solvent, substrate wetting agent, leveling agent, catalyst and matting powder, and disperse evenly and finely If the viscosity is less than 30μm, add a thickener at the end, adjust the viscosity with deionized water, and then filter and package it as component A;

[0085] (2) Preparation of component B: mix and disperse HDI, IPDI (...

Embodiment 1

[0100]

[0101]

[0102] Described fluorocarbon emulsion is ETERFLON 4303 series products (made by Changxing Chemical Industry);

[0103] (1) Preparation of component A: first add deionized water according to the formula amount, slowly add anti-sedimentation agent under stirring, disperse until it becomes a uniform viscous slurry liquid, add wetting dispersant and defoamer and stir for 15 minutes , then add the pigment rutile titanium dioxide, disperse evenly, grind it with a grinder until the fineness is less than 10 μm, filter and remove the grinding medium, add fluorocarbon emulsion, co-solvent, substrate wetting agent, leveling agent, catalyst and matting powder, Disperse evenly and have a fineness of less than 30 μm. Finally, add a thickener, adjust the viscosity with deionized water, and filter and pack it to become A component;

[0104] (2) Preparation of component B: After mixing and dispersing the HDI curing agent and ether ester solvent evenly according to the ...

Embodiment 2

[0111]

[0112]

[0113] Described fluorocarbon emulsion is ETERFLON 4303 series products (made by Changxing Chemical Industry);

[0114] (1) Preparation of component A: first add deionized water according to the formula amount, slowly add anti-sedimentation agent under stirring, disperse until it becomes a uniform viscous slurry liquid, add wetting dispersant and defoamer and stir for 15 minutes , then add the pigment rutile titanium dioxide, disperse evenly, grind it with a grinder until the fineness is less than 10 μm, filter and remove the grinding medium, add fluorocarbon emulsion, co-solvent, substrate wetting agent, leveling agent, catalyst and matting powder, Disperse evenly and have a fineness of less than 30 μm. Finally, add a thickener, adjust the viscosity with deionized water, and filter and pack it to become A component;

[0115] (2) Preparation of component B: After mixing and dispersing HDI curing agent, IPDI curing agent and ether ester solvent evenly ac...

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Abstract

The invention discloses a coated water-based double-component fluorocarbon paint, and preparation and application thereof. Particularly, the paint comprises a component A and a component B in a mass ratio of (12-25):1. The component A is composed of deionized water, an anti-settling agent, a wetting and dispersing agent, a defoaming agent, a pigment, a water-based fluorocarbon resin, a substrate wetting agent, a leveling agent, a cosolvent, a catalyst, matting powder and a thickener; and the component B is composed of a polyisocyanate curing agent. The paint can be used for preparing a coated PET (polyethylene terephthalate) back panel film.

Description

technical field [0001] The invention relates to the technical field of solar battery back film preparation, in particular to a water-based two-component fluorocarbon coating, and its preparation and application. Background technique [0002] Solar cell module packaging materials mainly include glass, EVA film, frame, back sheet film, junction box, silica gel, etc., and the back sheet film material is mainly polyethylene terephthalate (PET) film, which has excellent Electrical insulation and electrical properties, although it has excellent water and gas barrier properties, but weak resistance to humidity aging and weather resistance, so it is usually compounded with fluorine materials with better weather resistance and water resistance as protection. The composite process includes two types: reglue type and coating type. Re-adhesive solar backplane back film (TPT, KPK, etc.) is made of PVF or PVDF and other fluorine materials bonded and compounded with PET substrate through ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D151/00C09D175/04C09D7/12C08J7/04H01L31/049
CPCC08J7/0427C08J2367/02C08J2451/00C09D7/61C09D151/00C08L75/04C08K2003/2241C08K3/04Y02E10/50
Inventor 韩庆祥吴兼升
Owner ETERNAL CHEM (CHINA) CO LTD
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