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Preparation method of automotive scratch-proof coating

An anti-scratch and coating technology, applied in the coating and other directions, can solve the problem of poor anti-scratch performance, and achieve the effect of improving the anti-scratch performance, reducing agglomeration and improving the anti-scratch performance.

Inactive Publication Date: 2018-10-26
袁杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: aiming at the problem of poor scratch resistance of the currently used automobile paint, the present invention provides a preparation method of the automobile scratch resistant paint

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020]Mix white oil and fumed silica in a beaker at a mass ratio of 12:2, and add a surfactant 0.1 times the mass of white oil into the beaker, stir and mix at a temperature of 35°C and a speed of 240r / min After 50 minutes, an oil phase mixture was obtained; acrylamide and water were mixed in a flask at a mass ratio of 1:10, and acrylic acid 0.6 times the mass of acrylamide and N,N-methylene 0.14 times the mass of acrylamide were added to the flask Bisacrylamide was stirred and mixed for 60 minutes at a temperature of 55°C and a rotational speed of 350r / min, and the pH of the material in the flask was adjusted to neutral with a 12% sodium hydroxide solution to obtain an acrylamide mixture. Mix acrylamide mixture and sodium bisulfite at a mass ratio of 15:2, stir and mix for 30 minutes at a temperature of 50°C and a rotational speed of 300r / min to obtain a water phase mixture, and mix the water phase mixture and the oil phase mixture by Mix in a conical flask with a mass ratio ...

example 2

[0022] Mix aluminum sulfate octadecahydrate and water at a mass ratio of 1.5:2.0, and adjust the pH of the mixture of aluminum sulfate octadecadecahydrate and water to 9.2 with ammonia water with a mass fraction of 28%, to obtain a mixture of aluminum sulfate octadecadecahydrate. Put the mixture of aluminum sulfate water into a high-pressure closed reaction kettle, and react at a constant temperature for 28 hours at a temperature of 220 ° C and a pressure of 0.8 MPa. After cooling, the pretreated aluminum sulfate octadecahydrate mixture is obtained. Centrifuge to obtain a precipitate. After the precipitate is ultrasonically washed at a frequency of 55kHz for 20 minutes, and then dried at a temperature of 90°C for 25 minutes, a precursor is obtained. The precursor is heated at a temperature of 660°C After calcination for 5 hours, pre-modified alumina is obtained; mix absolute ethanol and phenyltrimethoxysilane at a mass ratio of 10:1, and add absolute ethanol mass to the mixture...

example 3

[0024] Mix white oil and fumed silica in a beaker at a mass ratio of 12:2, and add a surfactant 0.1 times the mass of white oil into the beaker, stir and mix at a temperature of 35°C and a speed of 240r / min After 50 minutes, an oil phase mixture was obtained; acrylamide and water were mixed in a flask at a mass ratio of 1:10, and acrylic acid 0.6 times the mass of acrylamide and N,N-methylene 0.14 times the mass of acrylamide were added to the flask Bisacrylamide was stirred and mixed for 60 minutes at a temperature of 55°C and a rotational speed of 350r / min, and the pH of the material in the flask was adjusted to neutral with a 12% sodium hydroxide solution to obtain an acrylamide mixture. Mix acrylamide mixture and sodium bisulfite at a mass ratio of 15:2, stir and mix for 30 minutes at a temperature of 50°C and a rotational speed of 300r / min to obtain a water phase mixture, and mix the water phase mixture and the oil phase mixture by Mix in a conical flask with a mass ratio...

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PUM

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Abstract

The invention discloses a preparation method of automotive scratch-proof coating and belongs to the technical of polymer materials. The preparation method includes: weighing, by weight, 55-65 parts ofwaterborne acrylic resin, 15-20 parts of water, 15-25 parts of additives, 8-12 parts of modified alumina, 4-6 parts of a surfactant, and 12-18 parts of a pigment in sequence, mixing the waterborne acrylic resin and water in a mixer, adding the surfactant, the pigment, the additives and the modified alumina into the mixer, and mixing and stirring at 45-55 DEG C under 300-400 r / min for 30-40 min toobtain the automotive scratch-proof coating. The automotive scratch-proof coating has excellent scratch resistance.

Description

technical field [0001] The invention discloses a preparation method of an automobile anti-scratch coating, which belongs to the technical field of polymer materials. Background technique [0002] In recent years, cars have become the main means of transportation for people to travel. Spraying paint on the car not only forms a protective film on the surface of the car body, the car body is not easy to be corroded, but also can prolong the service life of the car, and it also gives people a kind of aesthetic enjoyment. [0003] Automotive coatings have the following functions: (1) Beautify the appearance of the car: the paint film is required to be full, the luster is gorgeous and soft, the sharpness of reflection is good, the colors are various and in line with the trend, so that the appearance looks more pleasing to the eye and gives people a sense of Aesthetics; (2) Excellent construction and supporting properties. Automobile paints are generally multi-layer coatings. Beca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D7/62C09D7/61C09D7/63C08F220/56C08F220/06C08F222/38C08F2/44
CPCC08F2/44C08F220/56C08K2003/2272C09D7/61C09D7/62C09D7/63C09D7/70C09D133/00C08K13/06C08K9/06C08K9/02C08K9/10C08K3/22C08K3/36C08K7/00C08F220/06C08F222/385
Inventor 袁杰万振
Owner 袁杰