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Long-acting automobile glass rain repellent and preparation method thereof

A technology for automobile glass and rainproof agent, which is applied in chemical instruments and methods, other chemical processes, coatings, etc., can solve the problem of no rainproof agent for automobile glass, and achieves enhanced durability, enhanced rainproof effect, and the use of handy effect

Active Publication Date: 2016-08-17
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are glass rainproof agents on the market, but there are almost no rainproof agents specifically for automotive glass.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0041] The preparation method of described modified nano silica sol comprises the following steps:

[0042] (1), weigh each raw material in proportion, then in a 250ml there-necked flask with a thermometer and a stirrer, add 18g of nano silicon dioxide and 78.8g of absolute ethanol, stir at 40°C for 10 minutes, then Add 0.2g of vinyltriethoxysiloxane and stir again for 30 minutes;

[0043] (2), then add 0.5g maleic anhydride, 1g acrylic acid, 0.5g methacrylic acid, 0.5g hydroxyethyl acrylate to the there-necked flask, stir thoroughly for 10 minutes, add 0.1g dibenzoyl peroxide, heat up to boiling;

[0044] (3) Boiling reaction for 3 hours, heat preservation for 30 minutes, then adding 0.1 g of polyvinyl alcohol and 0.3 g of sorbitol, and stirring until completely dissolved, the modified nano-silica sol was obtained.

[0045] The preparation method of described modified polyacrylic acid solution comprises the following steps:

[0046] In a three-necked flask, add 2g of acryl...

Embodiment 1

[0049] A kind of long-acting anti-rain agent for automobile glass, comprising the following raw materials in mass percentage:

[0050] Modified nano silica sol 10%

[0051] Modified polyacrylic acid solution 1%

[0052] Modified sorbitol solution 5%

[0053] Sodium Alginate 0.1%

[0054] Polyvinyl alcohol solution 1%

[0055] Tween-60 0.5%

[0056] Sodium Lauryl Sulfate 0.5%

[0057] Glycerin 5%

[0058] Propylene Glycol 5%

[0059] water balance,

[0060] The sum of the total mass percentages is 100%.

[0061] The concrete preparation steps of automobile glass rainproof agent during this long-acting time are:

[0062] (1) At room temperature, first add 10g of modified nano-silica sol, 72g of water, 5g of glycerin, 5g of propylene glycol, 1g of modified polyacrylic acid solution, 5g of modified sorbitol solution, and 1g of polyvinyl alcohol solution in the container , sodium alginate 0.1, stir well.

[0063] (2) Add 0.5 g of sodium lauryl sulfate and 0.5 g of Tween-...

Embodiment 2

[0066] A kind of long-acting anti-rain agent for automobile glass, comprising the following raw materials in mass percentage:

[0067] Modified nano silica sol (wt30% liquid) 15%

[0068] Modified polyacrylic acid solution (wt8%) 1.5%

[0069] Modified sorbitol solution (wt15%) 7%

[0070] Sodium Alginate 0.3%

[0071] Polyvinyl alcohol solution (wt3%) 3%

[0072] Tween-60 0.7%

[0073] Sodium Lauryl Sulfate 0.7%

[0074] Glycerin 7%

[0075] Propylene Glycol 7%

[0076] water balance

[0077] The sum of the total mass percentages is 100%.

[0078] Described preparation method is with example 1.

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Abstract

The invention belongs to the technical field of fine chemical engineering, and particularly relates to a long-acting automobile glass rain repellent and a preparation method thereof. The glass rain repellent is prepared from the following raw materials in percentage by weight: 10-20% of modified nano silicon dioxide sol, 1-2% of modified polyacrylic acid solution, 5-10% of modified sorbitol solution, 0.1-0.5% of sodium alginate, 1-5% of polyvinyl alcohol solution, 0.5-1% of Tween-60, 0.5-1% of lauryl sodium sulfate, 5-10% of glycerol, 5-10% of propanediol and the balance of water, totaling 100%. The modified super-hydrophilic nano silicon dioxide is adopted to greatly enhance the rain repelling effect. By adopting the high-adhesion modified polyacrylic acid solution, the superhydrophilic nanoparticles and surfactant component can be attached to the glass without shedding, thereby further enhancing the durability of the rain-repelling product. The rain repellent can keep the rain repelling effect for 15 days.

Description

technical field [0001] The invention belongs to the technical field of fine chemicals, in particular to a long-acting rainproof 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. And still growing. Cars have greatly facilitated people's lives, but they have also brought a series of traffic safety hazards. According to statistics from relevant departments, 70% of major car traffic accidents occur in rainy days and at night. Driving in the rain, unclear vision is the biggest safety hazard. In heavy rain, even if the wiper swivels at a high speed, it still cannot wipe off the rain on the glass. At this time, the water film formed on the glass will make you unable to see the front clearly; The water splashed by the wheels will splash on the car window. At this time, the situation outside the car is unclear, and the safety hazard is ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/18C03C17/00
CPCC03C17/009C03C2217/213C03C2217/445C03C2217/478C03C2217/76C09K3/18
Inventor 张发兴卫晓利
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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