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Anti-fog coating, preparation method thereof and anti-fog glass

An anti-fog coating and anti-fog glass technology, applied in epoxy resin coatings, coatings and other directions, can solve the problems of cumbersome two-layer coating process, increase production costs, etc., achieve good anti-fog effect, reduce production costs, and simplify The effect of the production process

Active Publication Date: 2022-02-08
FUYAO GLASS IND GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process of forming a two-layer coating is cumbersome, which increases the production cost

Method used

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  • Anti-fog coating, preparation method thereof and anti-fog glass
  • Anti-fog coating, preparation method thereof and anti-fog glass
  • Anti-fog coating, preparation method thereof and anti-fog glass

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preparation example Construction

[0057] The preparation raw material of described hydrophilic copolymer comprises:

[0058] Hydrophilic monomer, initiator and second solvent;

[0059] The solubility of the epoxy resin in water is greater than or equal to 90%;

[0060] The solubility of the hydrophilic copolymer in water is greater than or equal to 90%.

[0061] The invention utilizes the polymerization reaction of the hydrophilic monomer under the action of the initiator to prepare the hydrophilic copolymer with high solubility. Then the hydrophilic copolymer and epoxy resin with high solubility react under the action of curing agent. Wherein, the hydrophilic copolymer is a linear polymer, and the hydrophilic copolymer of linear structure can be cross-linked with epoxy resin to form a firm semi-interpenetrating network structure, which is conducive to improving surface adhesion, wear resistance, toughness and durability. hot sex. The semi-interpenetrating network structure can release the stress generated...

Embodiment 1

[0119] This embodiment provides an anti-fog glass and a preparation method thereof. Proceed as follows:

[0120] Step 1: Preparation of Hydrophilic Copolymer

[0121] Weigh 2g of hydroxyethyl acrylate, 4g of acrylamide, and 40g of propylene glycol methyl ether into the reaction flask, pass through nitrogen protection, stir well, then add 0.15g of azobisisobutylcyanide, and place the reaction flask in a 70°C oil bath , stirred and reacted for 12 hours to obtain a hydrophilic copolymer with a solubility of 94%.

[0122] Step 2: Prepare anti-fog coating

[0123] Get 7.5g of the hydrophilic copolymer prepared in step 1, 5g of epoxy resin EX-313 (a commercial product of Nagase Chemtex Corporation in Japan, belonging to glycerol triglycidyl ether, with a solubility of 99%), and the mass ratio of the two is 1.5:1 , uniformly mix the two in 50 g of absolute ethanol, then add 0.5 g of silane coupling agent KH550 and 0.6 g of diethylenetriamine, stir evenly, and react at room tempera...

Embodiment 2

[0127] This embodiment provides an anti-fog glass and a preparation method thereof. Proceed as follows:

[0128] Step 1: Preparation of Hydrophilic Copolymer

[0129] Weigh 2g of hydroxyethyl acrylate, 4g of acrylamide, and 40g of propylene glycol methyl ether into the reaction flask, pass through nitrogen protection, stir well, then add 0.15g of azobisisobutylcyanide, and place the reaction flask in a 70°C oil bath , stirred and reacted for 12 hours to obtain a hydrophilic copolymer with a solubility of 94%.

[0130] Step 2: Prepare anti-fog coating

[0131] Get the hydrophilic copolymer prepared by 12g step 1, 3g epoxy resin EX-614B (the Japanese Nagase Chemtex Corporation commercial product, belong to sorbitol glycidyl ether, solubility is 94%), the mass ratio of the two is 4:1, will The two were uniformly mixed in 50 g of absolute ethanol, then 0.5 g of silane coupling agent KH560 and 0.4 g of diethylenetriamine were added, stirred evenly, and reacted at room temperatur...

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Abstract

The invention relates to the technical field of automotive glass, in particular to an anti-fog coating, a preparation method of the anti-fog coating and anti-fog glass. The anti-fog coating is prepared from the following raw materials: a hydrophilic copolymer, epoxy resin, a coupling agent, a curing agent and a first solvent, the hydrophilic copolymer is prepared from the following raw materials: a hydrophilic monomer, an initiator and a second solvent; the solubility of the epoxy resin in water is greater than or equal to 90%; the solubility of the hydrophilic copolymer in water is greater than or equal to 90%. The anti-fog coating disclosed by the invention can be directly coated on a glass substrate in a single layer, the production process is simplified, the production cost is reduced, and the antifogging coating has a very good antifogging effect and is not easy to peel off.

Description

technical field [0001] The invention relates to the technical field of glass for vehicles, in particular to an anti-fog coating, a preparation method thereof and an anti-fog glass. Background technique [0002] Automobile glass is prone to fogging under the condition of large difference in temperature and humidity inside and outside the car. Fogging will affect the visibility of the driver and may cause accidents. And if air-conditioning blowing and electric heating methods are generally used to remove fog, these methods have hysteresis and high energy consumption. [0003] At present, some technical solutions are disclosed to eliminate the fogging phenomenon by preparing two-layer coatings on the automotive glass substrate. In one version, the two-layer structure comprises a water-absorbing anti-fog layer which acts as an anti-fog and a substrate layer which acts as a joint cushion. The water-absorbing anti-fog layer repeatedly absorbs and releases water during use, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/26C09D133/24C09D133/14C09D163/00C09D7/63C03C17/32C03C17/30C03C17/28C03C27/12
CPCC09D133/066C09D133/14C09D7/63C03C17/326C03C17/32C03C17/30C03C17/28C08L2205/04C08L2201/08C08L63/00C08K5/544C08K5/5435
Inventor 孙盈盈郭善济庞淇瑞张灿忠柯城
Owner FUYAO GLASS IND GROUP CO LTD
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