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Process for producing vehicle glass antifogging agent

A technology for automotive glass and anti-fogging agent, applied in the field of daily chemical industry, can solve the problems of dust adsorption, glass surface fogging, short anti-fogging time, etc., to achieve strong anti-static ability, good glass transparency and long anti-fogging time Effect

Inactive Publication Date: 2008-07-16
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In addition to the electric heating anti-fog device on the front windshield of high-end cars, the side windows, rear window glass and windshields of general automobiles such as passenger cars, agricultural vehicles, and large trucks have no anti-fog devices. In winter, when there is a temperature difference between the inside and outside of the vehicle, or when the humidity is high in rainy days, the water vapor in the air will condense on the glass surface when it is cold, making the glass surface atomized. When the car windshield is atomized, it will seriously affect the driver's sight
At present, there are a small amount of glass anti-fogging agent products on the market, most of which are bottled liquid products. When using it, you need to spray the anti-fogging agent on the glass or on a paper towel, and then apply it evenly with a clean paper or cloth towel until it is polished. , it is inconvenient to carry and use, it is easy to stain car seats, car panels and other parts when spraying, and the anti-fog time is short and the effect is not good, it is easy to leave traces and absorb dust after drying

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Embodiment 1: Mass%

[0009] Fatty alcohol polyoxyethylene ether (AEO-9) 1.0~4.0%

[0010] Lauryl amphopropyl sulfonate 0.2~0.6%

[0011] Ethanol 6~15%

[0012] Glycerol 6~20%

[0013] Triethanolamine 0.2~2.0%

[0014] Isopropanol 1.0~5%

[0015] Polyethylene glycol (800) 0.1~0.6%

[0016] Deionized water ~100%

[0017] Take measured deionized water into the reaction kettle, add 0.2% polymer film-forming agent polyethylene glycol (800) and heat to 40°C and stir to dissolve, then add 2.0% fatty alcohol polyoxyethylene ether (AEO-9) in sequence Nonionic surfactant, 0.3% lauryl amphopropyl sulfonate cationic surfactant, add 8% ethanol, 10% glycerol and 2.0% isopropanol, finally add 0.5% acidity regulator triethanolamine , adjust the pH of the solution to be neutral or weakly acidic, stir evenly and cool down to room temperature to obtain the glass antifogging agent solution.

Embodiment 2

[0018] Embodiment 2: Mass%

[0019] Nonylphenol polyoxyethylene ether (OP-10) 1~4%

[0020] Coco alkyl trimethyl ammonium chloride 0.2~0.6%

[0021] Ethanol 6~15%

[0022] Glycerol 6~20%

[0023] Triethanolamine 0.5~1.5%

[0024] Isopropanol 1~5%

[0025] Polyvinylpyrrolidone 0.1~0.6%

[0026] Deionized water ~100%

[0027] Take measured deionized water into the reaction kettle, add 0.2% polymer film-forming agent polyvinylpyrrolidone, heat to 40°C and stir to dissolve, then add 2% nonylphenol polyoxyethylene ether nonionic surfactant in turn, 0.2% cationic surfactant of coconut oil alkyltrimethylammonium chloride, add 8% ethanol, 10% glycerol and 2% isopropanol, and finally add 1% acidity regulator triethanolamine to adjust the pH of the solution It is neutral or weakly acidic, stir evenly and cool down to room temperature to get the glass antifogging agent solution.

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PUM

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Abstract

The invention relates to a method for preparing an automobile glass antifoggant, wherein deionized water is added into a reaction kettle, and 0.1-0.6 percent of high molecular filmogen is added, heated to 40 DEG C, and agitated until dissolved, then 0.6-4.0 percent of fatty alcohol polyethenoxy ether or nonyl phenol polyethenoxy ether nonionics, 0.1-0.6 percent of coconut fatty alkyl trimethyl chloride or lauryl amphoteric propyl juanacidate cationic surfactant, and 0.2-1.0 percent mono ethanol amine or trolamine acidity modifier are added orderly; finally, 5.0-30 percent of isopropyl alcohol, ethanol, propanediol, and propanetriol are added, evenly agitated until the temperature lowers to the room temperature, and then the glass antifoggant is obtained. The invention has the advantages that the use is simple; the glass atomizing effect is good; dust can not be absorbed on the surface of the glass after the drying process, and no trace is left on the surface; the product is colorless and flavorless, safe and reliable.

Description

Technical field: [0001] The invention relates to a preparation method of an antifogging agent for automobile glass, which is composed of a polymer film-forming agent and an active agent, and belongs to the field of daily chemical industry. technical background: [0002] In addition to the electric heating anti-fog device on the front windshield of high-end cars, the side windows, rear window glass and windshields of general automobiles such as passenger cars, agricultural vehicles, and large trucks have no anti-fog devices. In winter, when there is a temperature difference between the inside and outside of the vehicle, or when the humidity is high in rainy days, the water vapor in the air will condense on the glass surface when it is cold, making the glass surface atomized. When the car windshield is atomized, it will seriously affect the driver's sight. At present, there are a small amount of glass anti-fogging agent products on the market, most of which are bottled liquid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/18
Inventor 于兹东高华
Owner QINGDAO UNIV
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