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Preparation method of long-acting wiping-resistant window glass anti-fogging agent

A car window glass, wipe-resistant technology, applied in the direction of chemical instruments and methods, other chemical processes, etc., can solve the problems of anti-fogging agent loss, solvent resistance, and wipe resistance, etc., to achieve broad application prospects, simple preparation process, Excellent scratch resistance

Inactive Publication Date: 2016-07-06
CHANGZHOU C PE PHOTO ELECTRICITY SCI & TECHN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention: the components of the common antifogging agents are all small molecular substances, which cannot form a real antifogging film, and are not resistant to wiping and solvents. The antifogging agent evaporates with the moisture And the loss shortens the anti-fog effect and can not play the defect of anti-fog effect for a long time. A preparation method of long-acting anti-fog agent for wipe-resistant car window glass is provided.
The antifogging agent prepared by the present invention uses castor oil and aluminum sol as base materials, and after coating, a firm metal oxide oily film will be formed on the glass surface to keep the glass surface moist and solve the problem of traditional antifogging agents. The problem of wiping resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] Weigh 10g of aluminum isopropoxide and dissolve it in 100mL of absolute ethanol, put it into an ultrasonic disperser and disperse it ultrasonically at 200W for 30min to obtain a precursor solution, then add 200mL of 0.1mol / L nitric acid solution and 1L deionized solution to the precursor solution Water, moved into a 60°C water bath, stirred and hydrolyzed for 1 hour to obtain aluminum sol, and set aside; put the castor beans in the stove after drying, and roast them at 90°C for 30 minutes. After the roasting, put the castor beans into the pan The castor bean powder is obtained by manual rolling in a milling tank for 20 minutes and passed through a 60-mesh standard sieve; put the above-mentioned castor bean powder into a wooden retort, cover the castor bean powder with lotus leaves, and put it in a pot Add water to the bottom of the wooden retort, heat up to boiling, and cook for 5 minutes until the steam around the wooden retort is uniform but the castor beans are not ye...

example 2

[0020] Weigh 13g of aluminum isopropoxide and dissolve it in 130mL of absolute ethanol, put it into an ultrasonic disperser and disperse ultrasonically at 250W for 35min to obtain a precursor solution, then add 250mL of 0.1mol / L nitric acid solution and 1L deionized solution to the precursor solution Water, moved into a 70°C water bath, stirred and hydrolyzed for 2 hours to obtain aluminum sol, and set aside; put the castor beans in the stove after drying, and roast them at 95°C for 35 minutes. After the roasting, put the castor beans into the pan The castor bean powder is obtained by manual rolling in a grinding tank for 30 minutes and passed through a 60-mesh standard sieve; put the above-mentioned castor bean powder into a wooden retort, cover the castor bean powder with lotus leaves, and put it in a pot Add water to the bottom of the wooden retort, heat up to boiling, and cook for 8 minutes until the steam around the wooden retort is uniform but the castor beans are not yet...

example 3

[0023] Weigh 15g of aluminum isopropoxide and dissolve it in 150mL of absolute ethanol, put it into an ultrasonic disperser and disperse it ultrasonically at 300W for 40min to obtain a precursor solution, then add 300mL of 0.1mol / L nitric acid solution and 2L of deionized Water, moved into a water bath at 80°C, stirred and hydrolyzed for 3 hours to obtain aluminum sol, and set aside; put the castor beans in the sun and put them into a large pot on the stove for roasting at 100°C for 40 minutes, and put the castor beans into the pan after roasting The castor bean powder is obtained by manual rolling in a milling tank for 40 minutes and passed through a 60-mesh standard sieve; put the above-mentioned castor bean powder into a wooden retort, cover the castor bean powder with lotus leaves, and put it into a pot Add water to the bottom of the wooden retort, heat up to boiling, and cook for 10 minutes until the steam around the wooden retort is uniform but the castor beans are not ye...

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PUM

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Abstract

The invention relates to a preparation method of a long-acting anti-fogging agent for wipe-resistant car window glass, belonging to the field of anti-fogging agent preparation. In this method, aluminum sol is first prepared, and then castor oil is obtained by pressing, supplemented with polytetrafluoroethylene, polyvinyl alcohol and magnesium stearate, and compounded in a high-temperature reaction kettle to obtain a long-lasting anti-fogging agent for wipe-resistant car window glass . The anti-fogging agent prepared by the present invention uses castor oil and aluminum sol as the base material, and after coating, a firm metal oxide oily film will be formed on the glass surface to keep the glass surface moist and solve the problem of traditional anti-fogging agents. Wipe resistance issue. Then, the anti-fogging agent has better film-forming properties by adding nano-titanium dioxide and polyurethane. Nano-titanium dioxide can reduce the contact angle of the anti-fogging film surface while preventing ultraviolet rays, so that the water in the air can diffuse and form a water film after contacting it. Scattering is generated to prevent fogging, and it also makes up for the shortcomings of traditional anti-fogging agents such as poor film-forming properties and short anti-fogging time, and has excellent anti-fogging effects.

Description

technical field [0001] The invention relates to a preparation method of a long-acting anti-fogging agent for wipe-resistant car window glass, belonging to the field of anti-fogging agent preparation. Background technique [0002] When using glass and transparent plastic, there is often a certain temperature difference between the two sides separated from each other. The water vapor in the air will condense into fog on the surface, and water droplets (condensation) will adhere to it. If the temperature on one side is too low, it may even be fine. frost. Whether it is fog or frost, it will significantly reduce the light transmittance of transparent materials, affect the line of sight, bring a lot of inconvenience, and even cause major losses. For example, the fog on the surface of glasses makes us "see flowers in the fog", but this inconvenience is tolerable, while the fogging of car window glass is a hidden danger of a large number of traffic accidents. Especially in the ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/18
CPCC09K3/18
Inventor 郭伟明林茂平
Owner CHANGZHOU C PE PHOTO ELECTRICITY SCI & TECHN