CN101220257A - Process for producing vehicle glass antifogging agent - Google Patents

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 method 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

A kind of preparation method of anti-fog agent for wind-screen of automobile

Technical field:

The present invention relates to a kind of compound method, belong to filed of daily-use chemical industry with macromolecule film former and bioactive agent composition anti-fog agent for wind-screen of automobile thereof.

Technical background:

Automobile has the electric heating anti-fog device on the front windshield of high-grade car at present, the windshield glass of its side window, rear window and general automobile such as passenger vehicle, agricultural vehicle, truck does not all have anti-smog device, inside and outside the vehicle temperature difference is arranged so in the winter time, or when rainy day, humidity was bigger, airborne water vapour is met cold meeting and is condensed at glass surface, make the glass surface atomizing, when windshield atomizes, can have a strong impact on pilot's line of vision.At present, existing a small amount of glass antidimmer product on the market, majority is the bottling liquid product, need during use to be sprayed onto antifogging agent on glass earlier or to be sprayed onto on the paper handkerchief, smear evenly with clean paper or napkin then, till polishing, exist and carry and use inconvenience, easily stain positions such as automotive seat, car panel during sprinkling, and the antifog time is short and effect is bad, leaves a trace easily after dried and adsorb dust.

Summary of the invention:

The objective of the invention is to overcome the deficiency that existing automobile antifogging agent exists, a kind of new automobile glass antidimmer preparation method is provided, more effectively reach anti-fog effect.

To achieve these goals, the deionized water that the present invention gets metering adds in the reactor, add 0.1～0.6% (mass percent) macromolecule film former, be heated to 40 ℃ and stirring and dissolving, add 0.6～4.0% fatty alcohol-polyoxyethylene ether or polyoxyethylene nonylphenol ether nonionogenic tenside then successively, 0.1～0.6% coco alkyl trimethyl ammonium chloride or lauryl both sexes propyl group sulfonate cats product, 0.2～1.0% monoethanolamine or trolamine acidity regulator, add 5.0～30% Virahols at last, ethanol, propylene glycol, glycerol stirs and reduces to room temperature and promptly get glass antidimmer.

The present invention has easy to carry, uses simply, and during glass atomization, wiping can be antifog conveniently, and the not only antifog time is long, and the glass transparent degree is good; Add the cation surface activating composition, antistatic effect is strong, and dry back glass surface does not adsorb dust, leaves no trace; The product colorless and odorless, safe and reliable.

Specific embodiments:

The present invention can be specifically described its preparation method by following examples:

Embodiment 1: quality %

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

Lauryl both sexes propyl group sulfonate 0.2～0.6%

Ethanol 6～15%

Glycerol 6～20%

Trolamine 0.2～2.0%

Virahol 1.0～5%

Polyoxyethylene glycol (800) 0.1～0.6%

Deionized water～100%

The deionized water of getting metering adds in the reactor, add 0.2% macromolecule film former polyoxyethylene glycol (800) and be heated to 40 ℃ and stirring and dissolving, the nonionogenic tenside that adds 2.0% fatty alcohol-polyoxyethylene ether (AEO-9) then successively, the cats product of 0.3% lauryl both sexes propyl group sulfonate, add 8% ethanol, 10% glycerol and 2.0% Virahol, add 0.5% acidity regulator trolamine at last, transferring pH value of solution is neutrality or slightly acidic, stirs to reduce to room temperature and promptly get the glass antifogging anti agent solution.

Embodiment 2: quality %

Polyoxyethylene nonylphenol ether (OP-10) 1～4%

Coco alkyl trimethyl ammonium chloride 0.2～0.6%

Ethanol 6～15%

Glycerol 6～20%

Trolamine 0.5～1.5%

Virahol 1～5%

Polyvinylpyrrolidone 0.1～0.6%

Deionized water～100%

The deionized water of getting metering adds in the reactor, add 0.2% macromolecule film former polyvinylpyrrolidone, be heated to 40 ℃ and stirring and dissolving, the nonionogenic tenside that adds 2% polyoxyethylene nonylphenol ether then successively, the cats product of 0.2% coco alkyl trimethyl ammonium chloride, add 8% ethanol, 10% glycerol and 2% Virahol, add 1% acidity regulator trolamine at last, transferring pH value of solution is neutrality or slightly acidic, stirs to reduce to room temperature and promptly get the glass antifogging anti agent solution.

Claims (2)

1. the preparation method of an anti-fog agent for wind-screen of automobile is to carry out in the reactor of routine, and it is molten to it is characterized in that adding deionized water, macromolecule film former polyoxyethylene glycol (800) or polyvinylpyrrolidone heated and stirred; Adding fatty alcohol-polyoxyethylene ether nonionogenic tenside, lauryl both sexes propyl group sulfonate cats product, ethanol, glycerol and Virahol then successively stirs, add the acidity regulator trolamine at last, making pH is neutrality or slightly acidic, stirs to reduce to room temperature and promptly get the glass antifogging anti agent solution.

2. the preparation method of a kind of anti-fog agent for wind-screen of automobile according to claim 1 is characterized in that cats product lauryl both sexes propyl group sulfonate or coco alkyl trimethyl ammonium chloride are 0.2～0.6%; Macromolecule film former polyoxyethylene glycol (800) or polyvinylpyrrolidone 0.1～0.6%.