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A kind of water vapor-proof coating, coating stock solution and its preparation method and application

A water-based coating and water-based technology, applied in coatings, polyether coatings, polyurea/polyurethane coatings, etc., can solve the problems of degraded OLED devices, reduced power generation efficiency of solar cells, and shortened product life. Anti-aging performance, excellent water vapor barrier, and environmentally friendly raw materials

Active Publication Date: 2020-08-14
CYBRID TECHNOLOGIES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the field of packaging, the penetration of water vapor will accelerate the damage of the product, shorten the life of the product, and cause direct economic losses; in the field of OLEDs, water vapor will deteriorate the components of the OLED device, especially weaken its luminous ability, and seriously reduce the OLED. The display quality and service life of the device; in the field of solar cells, the erosion of water vapor will reduce the power generation efficiency of solar cells and shorten the service life of photovoltaic modules

Method used

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  • A kind of water vapor-proof coating, coating stock solution and its preparation method and application
  • A kind of water vapor-proof coating, coating stock solution and its preparation method and application
  • A kind of water vapor-proof coating, coating stock solution and its preparation method and application

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Effect test

Embodiment 1

[0033] A kind of preparation method of water vapor-proof coating stock solution, described preparation method comprises the following steps:

[0034] (1) Mix 13.9g polyvinyl alcohol, 1g tetraethyl orthosilicate, 5g ethanol and 80g water to obtain a mixed solution;

[0035] (2) Add 0.1 g of ammonia water to the mixed solution obtained in step (1), and react for 6 h under stirring at 300 rpm to obtain the aqueous coating stock solution.

[0036] The obtained water-based coating stock solution was scraped and coated on a PET film with a thickness of 125 μm, and the solvent was evaporated at room temperature to obtain a water-based coating with high temperature resistance and water vapor barrier.

Embodiment 2

[0038] A kind of preparation method of water vapor-proof coating stock solution, described preparation method comprises the following steps:

[0039] (1) 20g polyethylene-vinyl acetate alcohol copolymer, 5g tetraethyl orthosilicate, 9g ethanol and 65g water are mixed to obtain a mixed solution;

[0040] (2) Add 1 g of formic acid to the mixed solution obtained in step (1), and react for 1 h under stirring at 600 rpm to obtain the aqueous coating stock solution.

[0041] The obtained water-based coating stock solution was scraped and coated on a PET film with a thickness of 125 μm, and the solvent was evaporated at room temperature to obtain a water-based coating with high temperature resistance and water vapor barrier.

Embodiment 3

[0043] A kind of preparation method of water vapor-proof coating stock solution, described preparation method comprises the following steps:

[0044] (1) 10g polyvinylidene chloride, 3.5g tetrakis (2-ethylhexyl) silicate, 10g n-propanol and 76g water are mixed to obtain a mixed solution;

[0045](2) Add 0.5 g of ammonium chloride to the mixed solution obtained in step (1), and react for 2 h under stirring at 500 rpm to obtain the aqueous coating stock solution.

[0046] The obtained water-based coating stock solution was scraped and coated on a PBT film with a thickness of 125 μm, and the solvent was evaporated at room temperature to obtain a water-based coating with high temperature resistance and water vapor barrier.

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Abstract

The invention provides a water vapor resisting water-borne coating stock solution and preparation method thereof and a water vapor resisting water-borne coating and an application thereof. The water vapor resisting water-borne coating stock solution comprises, by weight, 10%-20% of water-borne resin, 1%-5% of silicate ester, 75%-90% of a solvent and 0.1%-1% of a catalyst. The water-borne coating obtained by coating the water vapor resisting water-borne coating stock solution on a base plate is good in high temperature resistance and moisture barrier properties and good in ageing resistance, environmental stability and temperature tolerance, and the base coated is good in adhesion.

Description

technical field [0001] The invention belongs to the field of polymer materials, and relates to a water-based coating, in particular to a water-proof water-proof coating stock solution and a preparation method thereof, a water-proof water-proof coating and an application thereof. Background technique [0002] In daily life and production, the existence of water vapor will bring a lot of inconvenience and loss. In the field of packaging, the penetration of water vapor will accelerate the damage of the product, shorten the life of the product, and cause direct economic losses; in the field of OLEDs, water vapor will deteriorate the components of the OLED device, especially weaken its luminous ability, and seriously reduce the OLED. The display quality and service life of the device; in the field of solar cells, the erosion of water vapor will reduce the power generation efficiency of solar cells and shorten the service life of photovoltaic modules. [0003] The existing common...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D129/04C09D123/08C09D127/08C09D171/00C09D175/08C09D7/65C08J7/048C08G77/02C08L67/02C08L23/12
CPCC08G77/02C08J7/0427C08J2323/12C08J2367/02C08J2423/08C08J2427/08C08J2429/04C08J2471/00C08J2475/08C09D123/0853C09D127/08C09D129/04C09D171/00C09D175/08C08L83/02
Inventor 赵正柏陈洪野吴小平宇野敬一
Owner CYBRID TECHNOLOGIES INC
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