Waterborne resin antifogging coating special for films and antifogging film

An anti-fog coating and water-based resin technology, used in polyester coatings, coatings, other chemical processes, etc., can solve problems such as high price, affecting surface smoothness and uniformity, swelling and foaming, etc. Good film hardness and flexibility, durable anti-fog effect

Active Publication Date: 2018-05-29
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

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  • Waterborne resin antifogging coating special for films and antifogging film
  • Waterborne resin antifogging coating special for films and antifogging film
  • Waterborne resin antifogging coating special for films and antifogging film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A special water-based resin anti-fog coating for film, the coating comprises a first composition and a second composition;

[0049] Wherein the first composition includes the following components by weight:

[0050]

[0051] The second composition includes the following components in parts by weight:

[0052]

[0053] The number-average molecular weight of the water-based polyester resin is 7000; the cosolvent, solvent, catalyst, curing agent and wetting agent in the first composition are respectively 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. Described cosolvent is isopropanol; Described solvent is deionized water.

Embodiment 2

[0055] A special water-based resin anti-fog coating for film, the coating comprises a first composition and a second composition;

[0056] Wherein the first composition includes the following components by weight:

[0057]

[0058]

[0059] The second composition includes the following components in parts by weight:

[0060]

[0061] The number-average molecular weight of the water-based polyester resin is 7000; the cosolvent, solvent, catalyst, curing agent and wetting agent in the first composition are respectively 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. Described cosolvent is isopropanol; Described solvent is water.

Embodiment 3

[0063] A special water-based resin anti-fog coating for film, the coating comprises a first composition and a second composition;

[0064] Wherein the first composition includes the following components by weight:

[0065]

[0066] The second composition includes the following components in parts by weight:

[0067]

[0068]

[0069] The number-average molecular weight of the water-based polyester resin is 7000; the cosolvent, solvent, catalyst, curing agent and wetting agent in the first composition are respectively 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. Described cosolvent is isopropanol; Described 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 technical field of anti-fogging, in particular to a water-based resin anti-fogging coating for films, an anti-fogging film containing the water-based resin anti-fogging coating and a preparation method thereof. Background technique [0002] In daily life, we often encounter the phenomenon that the transparent material will condense and condense due to the temperature difference in the environment, forming small droplets. 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, foggy windows will affect the driver's line of sight, and lens fogging will affect observation and shooting. [0003] At present, coatings such as surfactants, inorganic sols, inorganic nanoma...

Claims

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Application Information

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Patent Type & Authority Applications(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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