Long-acting glass antifog membrane and preparation method thereof

An anti-fog film and glass technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of use effect, light transmittance, unstable glass surface, etc., and achieve the effect of good stability

Inactive Publication Date: 2016-01-13
陈麒雅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since these formulas are very soluble in water and unstable on the glass surface, their anti-fog effect can only last for a short time, and the use effect is greatly affected
Chinese patent 201410689378 discloses a multi-component antifogging agent formula composed of propylene glycol, sodium phosphate, magnesium silicate, sodium tripolyphosphate, titanium oxide, sodium chloride, Tween, etc., which has a longer antifogging effect effect, but the introduction of a larger amount of inorganic components will have a greater impact on its light transmittance

Method used

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  • Long-acting glass antifog membrane and preparation method thereof
  • Long-acting glass antifog membrane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] In a 200mL beaker, weigh 50g of polyacrylic acid with a molecular weight of 3000, 4.5g of diethanolamine, and 5.0g of potassium hydroxide, and add them to 40.5g of deionized water in order, and obtain an antifogging agent after completely dissolving, and then pipette 5mL of antifogging agent. Put the spray agent in a clean petri dish, scrape it carefully with a glass rod, place it in an oven at 80°C, and dry it while reacting, take it out after 2 hours, and make a long-lasting glass anti-fog film.

Embodiment 2

[0018] In a 200mL beaker, weigh 55g of polyacrylic acid with a molecular weight of 3000, 1.5g of diethanolamine, and 10.0g of potassium hydroxide, and add them to 33.5g of deionized water in order, and obtain an antifogging agent after completely dissolving, and then pipette 5mL of antifogging agent. Put the spray agent in a clean petri dish, carefully scrape it with a glass rod, place it in a 50°C oven, and dry it while reacting. Take it out after 4 hours to obtain a long-lasting glass anti-fog film.

Embodiment 3

[0020] In a 200mL beaker, weigh 50g of polyacrylic acid with a molecular weight of 3000, 6.0g of diethanolamine, and 8.0g of sodium hydroxide, and add them to 36.0g of deionized water in order, and obtain an antifogging agent after completely dissolving, and then pipette 5mL of antifogging agent. Put the spray agent in a clean petri dish, carefully scrape it with a glass rod, place it in a 60°C oven, and dry it while reacting, take it out after 3 hours, and make a long-lasting glass anti-fog film.

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Abstract

The invention discloses a long-acting glass antifog membrane. The antifog membrane is composed of polyacrylic acid, diethanolamine and an alkaline substance with the mass ratio of 30-60:1-10:5-15. The invention also discloses a preparation method for the antifog membrane. The preparation method comprises firstly dissolving polyacrylic acid, diethanolamine and the alkaline substance in water according to the ratio, then uniformly spreading the antifog agent on the glass surface through a brushing, spraying or scraping manner, and finally putting the glass in an environment of 50-150 DEG C and drying. In the heating drying process, polyacrylic acid and diethanolaine are subjected to crosslinking reaction, and a uniform transparent hydrophilic organic membrane is formed. The antifog membrane is good in stability, and is capable of keeping the antifog capability for a long time, and the antifog effect can last several months.

Description

technical field [0001] The invention belongs to the field of anti-fog technology, and relates to a long-acting glass anti-fog film and a preparation method thereof, which is especially suitable for anti-fog treatment on the surface of automobile glass. Background technique [0002] In wet weather or when the temperature difference between inside and outside is large, the surface of the car glass is easy to form fog. After the rain is splashed on the rearview mirror and side glass in rainy days, it will seriously affect the rearview observation effect and bring great hidden dangers to driving safety. [0003] At present, the common anti-fog measures are mainly to wipe with a solution containing surfactant components. Chinese patent 201010528039.2 discloses an antifogging agent formula mainly composed of sodium dodecylbenzenesulfonate, glycerol, alkylphenol polyoxyethylene ether and the like. Chinese patent 201210555157 discloses an antifogging agent formula mainly composed o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/18C08J3/24
Inventor 陈麒雅
Owner 陈麒雅
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