Antifogging agent and application method

A technology of anti-fogging agent and surfactant, applied in the field of anti-fogging agent, can solve the problems of loss of anti-fogging agent, entering eyes, anti-fogging coating is not wear-resistant, etc., to reduce interfacial tension, enhance mechanical properties, and good water resistance sexual effect

Inactive Publication Date: 2019-09-20
浙江跃维新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the original anti-fog coating of most swimming goggles does not last too long, especially after being soaked in water for a long time, it is easy to lose the anti-fog effect
Moreover, most of the anti-fog coatings are very wear-resistant, and the anti-fog effect will be greatly reduced if you accidentally touch them with your fingers.
Similarly, most anti-fogging agents are not resistant to water flushing, soaked in water, they will lose their effectiveness in a few minutes, and the lost anti-fogging agent may even enter the eyes, seriously irritating the eyes, and even causing eye diseases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The antifogging agent is composed of 1% cellulose nanocrystal, 3% silicon dioxide nanoparticle, 0.3% nonionic fluorocarbon surfactant, 0.05% xanthan gum, 10% ethanol, and the balance is water.

[0047] Apply it to the lenses of swimming goggles and diving goggles. After drying, it can be firmly adsorbed on the lenses and cannot be washed away by water. The coating has good hydrophilicity and can absorb a layer of water film to play the role of anti-fog. When the surface is stained with oil and other impurities and loses the anti-fog effect, you can gently wipe the lens back and forth with your fingers in the water to remove impurities and restore the anti-fog effect to the lens. A coating film can last for more than 30 days.

Embodiment 2

[0049] The composition of the antifogging agent is 1% cellulose nano crystal, 10% silicon dioxide nano particle, 0.1% hyaluronic acid, 30% ethanol, and the balance is water.

[0050] The lens is first treated with a plasma cleaning machine to make the surface of the lens hydrophilic, and then the anti-fog liquid without surfactant is applied to the lens and dried naturally to form a wear-resistant anti-fog coating. When the anti-fog effect gradually disappears due to impurities, the surface of the coating can be cleaned by rubbing with fingers to reactivate the anti-fog effect. The anti-fog effect can last for more than 60 days.

Embodiment 3

[0052]The composition of the antifogging agent is 0.5% of cellulose nanofiber, 2% of titanium dioxide nanoparticle, 0.2% of alkyl glucoside, and the balance is water. When the anti-fog effect gradually disappears due to impurities, it can be reactivated using the method in Example 1, and the anti-fog effect can last for more than 30 days cumulatively.

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PUM

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Abstract

The invention relates to a functional assistant, in particular to a reusable, safe and environment-friendly antifogging agent and an application method thereof. The antifogging agent comprises, by mass, 0.01-10% of nanocellulose, 0.1-30% of inorganic nanoparticles, 0-2% of surfactants, 0-1% water-soluble polymers, 0-50% of water-soluble solvents and the balance of water. The antifogging agent is mainly made from the nanocellulose which is blended with the inorganic nanoparticles, the water-soluble polymers, the surfactants, the solvents and the like, and has the advantages of water jet resistance, friction resistance and the like. When an antifogging coating is contaminated by grease and dust to disable the antifogging effect, due to the high friction resistance of the antifogging coating, users can slightly wipe away the grease and the dust by hands or wetted soft cloth, and accordingly, the antifogging effect is reactivated.

Description

technical field [0001] The invention relates to a functional auxiliary agent, in particular to an antifogging agent. Background technique [0002] Lenses such as diving goggles and swimming goggles are very prone to fogging due to temperature differences and changes in humidity. Fog will not only seriously affect the sportsman's line of sight, thereby reducing the performance of the sportsman, but also cause the sportsman to collide due to poor vision and unable to see clearly the situation in the water. Therefore, most swimming goggles and a small number of diving goggles will be equipped with original anti-fog coatings; and athletes will often use anti-fog agents to apply anti-fog on the lenses. At present, the original anti-fog coating of most swimming goggles does not last too long, especially after being soaked in water for a long time, it is easy to lose the anti-fog effect. Moreover, most of the anti-fog coatings are very wear-resistant, and the anti-fog effect will...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/18
CPCC09K3/18
Inventor 李银勇蔡建锋谭少青
Owner 浙江跃维新材料科技有限公司
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