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Long-acting anti-fog agent for automotive glass and preparation method of anti-fog agent

A technology of automobile glass and anti-fogging agent, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of short anti-fog time, flammability, explosion, etc., and achieve the effect of enhancing anti-fog effect and enhancing durability

Active Publication Date: 2016-06-29
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this type of product is that it is flammable and explosive, especially when used in automobiles and environments that require fire prevention, and it is dangerous and costly. The most important thing is that its anti-fog time is short, and the general anti-fog time does not exceed 2 hours. week

Method used

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  • Long-acting anti-fog agent for automotive glass and preparation method of anti-fog agent
  • Long-acting anti-fog agent for automotive glass and preparation method of anti-fog agent
  • Long-acting anti-fog agent for automotive glass and preparation method of anti-fog agent

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] The preparation method of modified nano silica sol comprises the steps:

[0030] (1), weigh each raw material in proportion, then in a 250ml there-necked bottle with a thermometer and a stirrer, add powdered nano-silicon dioxide and absolute ethanol, and stir for 10 minutes at 40°C, Then add vinyltriethoxysiloxane and stir again for 30 minutes;

[0031] (2), then add maleic anhydride, acrylic acid, methacrylic acid, and hydroxyethyl acrylate to the there-necked flask in turn, and after stirring for 10 minutes, add dibenzoyl peroxide and heat up to boiling;

[0032] (3) Boiling and reacting for 3 hours, keeping warm for 30 minutes, then adding polyvinyl alcohol and sorbitol, and stirring until completely dissolved. That is, the modified nano-silica sol is prepared.

[0033] The modified polyacrylate solutions in the following examples are all 8% solutions formed by copolymerization of acrylic acid-maleic anhydride-methacrylic acid. The preparation method of the modifi...

Embodiment 1

[0035] Described automobile glass antifogging agent, it comprises the raw material of following mass percentage composition:

[0036]

[0037]

[0038] Modified nano-silica sol (20% liquid) means that the mass percentage of modified nano-silica sol in the modified nano-silica sol prepared by adopting the formula and preparation method of the specific embodiment is 20% %. The following are the same.

[0039] Its concrete preparation steps of described automobile glass antifogging agent are:

[0040] (1) At room temperature, first add 8 g of glycerin, 5 g of propylene glycol, 15 g of ethanol, 2 g of OP-10 emulsifier, and 1 g of polyethylene glycol into the container. Modified polyacrylate solution 1g, stir well

[0041] (2), then add 0.5g of sodium lauryl sulfate, 0.5g of sodium dodecylbenzenesulfonate, 10g of nano-silica sol, and 57g of water into the container, and then stir evenly to obtain a long-lasting glass Anti-fog agent.

[0042] (3), apply this product on th...

Embodiment 2

[0044] A long-acting antifogging agent for automobile glass, which includes the raw materials of the following mass percentages:

[0045]

[0046] The sum of the total mass percentages is 100%. Modified nano-silica sol (20% liquid) means that the mass percentage of modified nano-silica sol in the modified nano-silica sol prepared by adopting the formula and preparation method of the specific embodiment is 20% %.

[0047] The preparation method in this example is identical with example 1.

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Abstract

The invention belongs to the technical field of preparation of anti-fog agents for automotive glass and particularly discloses a long-acting anti-fog agent for automotive glass and a preparation method of the anti-fog agent. The anti-fog agent comprises raw materials in percentage by mass as follows: 10%-15% of modified nano-silica sol, 1%-2% of a modified polyacrylate solution, 1%-3% of polyethylene glycol 1000, 2%-3% of OP-10, 0.5%-1% of sodium dodecyl sulfate, 0.5%-1% of sodium dodecylbenzenesulfonate, 8%-10% of glycerin, 5%-7% of propylene glycol, 15%-20% of ethyl alcohol and the balance of water, and the sum of total mass percentage composition is 100%. The anti-fog effect of the anti-fog agent is greatly enhanced through adoption of modified super-hydrophilic nano-silica; with adoption of the modified polyacrylate solution with better adhesion performance, super-hydrophilic nanoparticles and surfactant components can adhere to the glass without falling, so that the durability of the anti-fog agent is enhanced, and the anti-fog effect can be kept for 3 months.

Description

technical field [0001] The invention belongs to the technical field of preparation of an antifogging agent for automobile glass, in particular to a long-acting antifogging agent for automobile glass and a preparation method thereof. Background technique [0002] At present, with the rapid economic development, my country's car ownership has exceeded 100 million. Cars have greatly facilitated people's lives, but they have also brought a series of traffic safety hazards. Among them, in the autumn and winter seasons, the fog of car glass has become a traffic safety problem that cannot be ignored. The anti-fog agent for automobile glass is mainly used for anti-fog work inside and outside the car, reducing the condensation phenomenon caused by moisture on the surface of glass and plastic, and reducing the occurrence of traffic accidents. [0003] At present, there are many varieties of glass anti-fogging agents on the market, and they are basically made of organic solvents. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/18
CPCC09K3/18
Inventor 张发兴卫晓利
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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