A special water-based resin anti-fog coating and anti-fog film for thin film

A technology of anti-fog coatings and water-based resins, applied in polyester coatings, coatings, and other chemical processes, can solve the problems of high price, affecting surface smoothness and uniformity, expansion and foaming, etc., and achieve low cost and long-lasting Anti-fog, good adhesion effect

Active Publication Date: 2019-12-06
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Products based on inorganic sol and metal oxide sol such as organosilicon sol are expensive, and will expand and foam when suddenly heated, affecting the smoothness and uniformity of the surface

Method used

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  • A special water-based resin anti-fog coating and anti-fog film for thin film
  • A special water-based resin anti-fog coating and anti-fog film for thin film
  • A special water-based resin anti-fog coating and anti-fog film for thin film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A special water-based resin anti-fog coating for thin films, said coating comprising a first composition and a second composition;

[0059] Wherein the first composition comprises the following components in parts by weight:

[0060]

[0061] The second composition comprises the following components in parts by weight:

[0062]

[0063] The number-average molecular weight of the water-based polyester resin is 7000; the auxiliary solvent, solvent, catalyst, curing agent, and wetting agent in the first composition are the same as those in the second composition. The hydrophilic component is polyvinyl alcohol 1788 low-viscosity type; the catalyst is toluene-4-sulfonic acid. The curing agent is methyl etherified amino resin. The wetting agent is polyether modified polydimethylsiloxane. The co-solvent is isopropanol; the solvent is deionized water.

Embodiment 2

[0065] A special water-based resin anti-fog coating for thin films, said coating comprising a first composition and a second composition;

[0066] Wherein the first composition comprises the following components in parts by weight:

[0067]

[0068]

[0069] The second composition comprises the following components in parts by weight:

[0070]

[0071] The number-average molecular weight of the water-based polyester resin is 7000; the auxiliary solvent, solvent, catalyst, curing agent, and wetting agent in the first composition are the same as those in the second composition. The hydrophilic component is polyvinyl alcohol 1788 low-viscosity type; the catalyst is toluene-4-sulfonic acid. The curing agent is methyl etherified amino resin. The wetting agent is polyether modified polydimethylsiloxane. The co-solvent is isopropanol; the solvent is water.

Embodiment 3

[0073] A special water-based resin anti-fog coating for thin films, said coating comprising a first composition and a second composition;

[0074] Wherein the first composition comprises the following components in parts by weight:

[0075]

[0076] The second composition comprises the following components in parts by weight:

[0077]

[0078]

[0079] The number-average molecular weight of the water-based polyester resin is 7000; the auxiliary solvent, solvent, catalyst, curing agent, and wetting agent in the first composition are the same as those in the second composition. The hydrophilic component is polyvinyl alcohol 1788 low-viscosity type; the catalyst is toluene-4-sulfonic acid. The curing agent is methyl etherified amino resin. The wetting agent is polyether modified polydimethylsiloxane. The co-solvent is isopropanol; the solvent is water.

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Abstract

The invention discloses waterborne resin antifogging coating special for films and an antifogging film. The waterborne resin antifogging coating comprises a first composition and a second composition,wherein the first composition comprises waterborne polyester resin, a cosolvent, a solvent, a catalyst, a curing agent and a wetting agent; the second composition comprises a hydrophilic component cosolvent, a solvent, a catalyst, a curing agent and a wetting agent. The antifogging film is coated with the coating above. The waterborne resin antifogging coating has the advantages that the antifogging coating is colorless and transparent and has extremely high light transmittance; the waterborne polyester resin and the hydrophilic component in the antifogging coating are chemically crosslinkedvia the curing agents, so that the coating layer formed by the antifogging coating and a film base material have lasting antifogging performance, water resistance and wear resistance.

Description

technical field [0001] The invention relates to the field of anti-fog technology, in particular to a special water-based resin anti-fog coating for films, an anti-fog film containing the water-based resin anti-fog coating and a preparation method thereof. Background technique [0002] In daily life, it is often encountered that transparent materials will condense and condense water vapor to form small droplets due to the temperature difference in the environment. Due to the existence of these tiny water droplets, the light will be refracted and reflected when passing through the transparent material, which will significantly reduce the light transmittance of the transparent material, increase the haze, seriously affect the clarity, and bring serious consequences. For example, the fogging of the car window will affect the driver's line of sight, and the fogging of the lens will affect the observation and shooting. [0003] At present, coatings such as surfactants, inorganic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/02C09D129/04C09D7/65C09D7/20C08J7/04C09K3/18
CPCC08J7/042C08J2429/04C08J2467/02C08L2201/10C08L2205/03C09D129/04C09D167/02C09K3/18C08L83/12C08L61/32C08K5/05
Inventor 张群朝张世贤郝同辉蒋涛
Owner HUBEI UNIV
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