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Hydrophobic nano composite automobile finish and preparation method thereof

An automotive topcoat and nano-composite technology, applied in coatings, anti-corrosion coatings, etc., can solve the problems of unpopular production, poor coating durability, and need for regular replacement, and achieve good mechanical properties, good adhesion, and save on car washing Effects of Water Use and Costs

Inactive Publication Date: 2014-05-28
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, this coating is poorly durable and needs to be replaced periodically
And the cost is quite high, it cannot be popularized and produced, nor can it replace the existing automobile topcoat paint and directly spray it on the primer and the middle coat

Method used

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  • Hydrophobic nano composite automobile finish and preparation method thereof
  • Hydrophobic nano composite automobile finish and preparation method thereof
  • Hydrophobic nano composite automobile finish and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Put 20g of 3-triethoxysilyl-1-propylamine into the reaction kettle, add 200g ethyl acetate and 170g xylene, stir for 30 minutes (rotational speed is 600 rpm), keep stirring, then add 50g of nano-silica to obtain a nano-silica dispersion; use an ultrasonic nano-material disperser to disperse for 30 minutes at a temperature of 45° C. and an ultrasonic frequency of 30 kHz.

[0024] Add 500g of car topcoat (selected from Reiz Acrylic Car Paint 2k52) into the reactor, control the temperature at 35°C, and stir for 1.5 hours (rotational speed is 400 rpm) to make it fully mixed and the state is uniform and stable. Put the mixed solution in an ultrasonic disperser, disperse with ultrasonic for 60 minutes, at a temperature of 45° C., and an ultrasonic frequency of 30 kHz, and remove the solvent by suction filtration to obtain the hydrophobic topcoat of the present invention.

Embodiment 2

[0026] Put 20g of γ-glycidoxypropyltrimethoxysilane into the reaction kettle, add 400g ethyl acetate, stir for 40 minutes (rotation speed is 400 rpm), keep stirring, then add 50 nanometer silica , To obtain a nano-silica dispersion. Use an ultrasonic nano-material disperser to disperse for 20 minutes at a temperature of 30°C and an ultrasonic frequency of 40 kHz.

[0027] Add 500g of car topcoat (selected from Reiz acrylic type car paint RZ9000) into the reaction kettle, control the temperature at 30°C, and stir for 1 hour (rotational speed is 800 rpm) to make it fully mixed and the state is uniform and stable. Put the mixed solution in an ultrasonic disperser, disperse by ultrasonic for 45 minutes, at a temperature of 30° C., and an ultrasonic frequency of 40 kHz, and remove the solvent by suction filtration to obtain the hydrophobic topcoat of the present invention.

Embodiment 3

[0029] Put 50g of 3-triethoxysilyl-1-propylamine into the reaction kettle, add 500g of xylene, stir for 20 minutes (rotational speed is 800 rpm), keep stirring, then add 55g of nano silica , Obtain the nano-silica dispersion liquid; use an ultrasonic nano-material disperser, disperse for 40 minutes, the temperature is 55 DEG C, the ultrasonic frequency is 20 kHz.

[0030] Add 600g of car topcoat (selected from Reiz Acrylic Car Paint 1KS22B) into the reactor, control the temperature at 40°C, and stir for 2 hours (rotational speed is 300 rpm) to make it fully mixed and the state is uniform and stable. Put the mixed solution in an ultrasonic disperser, disperse with ultrasonic for 90 minutes, at a temperature of 55° C., and an ultrasonic frequency of 20 kHz, and remove the solvent by suction filtration to obtain the hydrophobic topcoat of the present invention.

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PUM

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Abstract

The invention provides a hydrophobic nano composite automobile finish which has hydrophobic and self-cleaning capacities, and a preparation method for the composite automobile finish. Nano silicon dioxide is treated by nano dispersion, and is dispersed into various components of an acrylic automobile finish under the cavitation of ultrasonic waves, and the acrylic finish is modified. The automobile finish has the characteristics of high adhesion, high hardness, high bending strength, water, acid, alkali and gasoline resistance, hydrophobicity, self cleaning, pollution and dust prevention and the like.

Description

technical field [0001] The invention provides a hydrophobic nano-composite automobile topcoat, which has hydrophobic and self-cleaning capabilities, and discloses a preparation method of the composite automobile topcoat, which belongs to the technical field of automobile surface protection. Background technique [0002] In recent years, hydrophobic films have been widely used in many fields such as scientific research, industrial and agricultural production, and people's daily life. Hydrophobic technology is also of great practical significance for anti-corrosion, anti-rust and anti-fouling in the construction industry, metal industry, etc. Especially in recent years, the rapid development of high and new technologies such as microelectronic systems, optoelectronic components and nanotechnology has given vitality to the research and application of hydrophobic coatings. But up to the present, still do not have a kind of automotive topcoat with hydrophobicity and self-cleanin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D7/12C09D5/00C09D5/08C09D133/00
Inventor 于多年冯方智牛双卢思宇杜习宇陈延红周维杰贺维华胡正才鲁重阳朱利民
Owner JILIN UNIV
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