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Paint repair paste used for automobile scratch restoration, and preparation method thereof

A technology for repairing paint and scratches, which is applied in the field of paint repair paste for car scratch repair and its preparation. It can solve the problems of poor dispersion of bacterial cellulose powder and aluminum powder and affect the repair effect, and shorten the surface drying time. , maintain the repair effect, improve the effect of anti-corrosion ability

Active Publication Date: 2019-06-25
广州元泽汽车有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the dispersibility of bacterial cellulose powder and aluminum powder in deionized water and resin is not strong, which affects the repair effect

Method used

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  • Paint repair paste used for automobile scratch restoration, and preparation method thereof

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preparation example Construction

[0051] The preparation method of described paint touch-up paste, comprises the steps:

[0052] The first step is to add the silicone oligomer into the water-based epoxy resin, stir and mix at room temperature 150r / min for 2-3h, and prepare the matrix;

[0053] Step 2: After adding deionized water into the matrix for dilution, add the modified filler, aluminum zinc tripolyphosphate powder, modified metal powder and wetting and dispersing agent into the matrix, and continue stirring for 30-40 minutes;

[0054] The third step is to continue to add pigments and defoamers, stir for 20-30 minutes, add thickener, stir and mix evenly, and make a paint touch-up paste;

[0055] The specific method of using the paint repair paste is as follows:

[0056] Pre-treatment of paint repair: remove the plastic parts in the repair area to avoid deformation due to baking and heat; use suitable sandpaper for the defects that need paint repair, and choose the type of sandpaper from small to large (...

Embodiment 1

[0063] A paint touch-up paste for car scratch repair, made of the following raw materials in parts by weight: 40 parts of water-based epoxy resin, 6 parts of silicone oligomer, 8 parts of pigment, 2 parts of modified filler, tripolyphosphoric acid 2 parts of aluminum zinc powder, 5 parts of modified metal powder, 0.6 part of wetting and dispersing agent, 0.5 part of defoamer, 0.5 part of ethyl hydroxyethyl cellulose, 10 parts of deionized water;

[0064] The touch-up paste is made by the following steps:

[0065] The first step is to add the silicone oligomer into the water-based epoxy resin, stir and mix at room temperature 150r / min for 2h, and prepare the matrix;

[0066] Step 2: After adding deionized water into the matrix for dilution, add the modified filler, aluminum zinc tripolyphosphate powder, modified metal powder and wetting and dispersing agent into the matrix, and continue stirring for 30 minutes;

[0067] The third step is to continue to add pigment and defoamer...

Embodiment 2

[0069] A paint touch-up paste for car scratch repair, made of the following raw materials in parts by weight: 45 parts of water-based epoxy resin, 7 parts of silicone oligomers, 9 parts of pigments, 2.5 parts of modified fillers, tripolyphosphoric acid 2.5 parts of aluminum zinc powder, 6.5 parts of modified metal powder, 0.8 part of wetting and dispersing agent, 0.6 part of defoamer, 0.6 part of methyl hydroxypropyl cellulose, 13 parts of deionized water;

[0070] The touch-up paste is made by the following steps:

[0071] The first step is to add the silicone oligomer into the water-based epoxy resin, stir and mix at room temperature 150r / min for 2.5h, and prepare the matrix;

[0072] Step 2: After adding deionized water to the matrix for dilution, add the modified filler, aluminum zinc tripolyphosphate powder, modified metal powder and wetting and dispersing agent into the matrix, and continue stirring for 35 minutes;

[0073] The third step is to continue to add pigments ...

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Abstract

The invention discloses a paint repair paste used for automobile scratch restoration. The paint repair paste used for automobile scratch restoration is prepared from, by weight, 40 to 50 parts of aqueous epoxy resin, 6 to 8 parts of organosilicon oligomer, 8 to 10 parts of a pigment, 2 to 3 parts of a modified filler, 2 to 3 parts of aluminum triphosphide powder, 5 to 8 parts of modified metal powder, 0.6 to 1 part of a wetting dispersant, 0.5 to 0.7 part of a defoaming agent, 0.5 to 0.7 part of a thickening agent, and 10 to 16 parts of deionized water. The invention also discloses a preparation method of the paint repair paste. According to the preparation method, the aqueous epoxy resin is taken as a base body of the paint repair paste, and the organosilicon oligomer is adopted for modification, so that the flexibility and the surface tension of the aqueous epoxy resin are improved; no organic solvent containing volatile substances is adopted, the preparation method is friendly to the environment; the modified filler is added, so that paint film is provided with excellent corrosion resistance, modified metal powder can be steadily and highly dispersed in the paint repair paste, and paint film metal luster is improved; the obtained paint repair paste is friendly to the environment, and repairing effect lasts long.

Description

technical field [0001] The invention belongs to the technical field of automobile maintenance, and in particular relates to a paint touch-up paste for repairing automobile scratches and a preparation method thereof. Background technique [0002] With the development of the times, the penetration rate of automobiles is getting higher and higher. At the same time, the problems in the use of automobiles are getting more and more attention. During the use of the car, it is inevitable that bumps and scratches will occur. For large-area paint damage, it is generally repaired by repainting, and for every small bump or scratch, it will be very difficult to repair it if it is also repainted. Troublesome and costly. At present, the product commonly used on the market to repair small car scratches is a paint repair pen. Apply paint to repair scratches. However, for deeper scratches, although the touch-up pen can make the scratches have the same color as the car body, there will stil...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/10C09D7/65C09D7/62C09D7/20
Inventor 汪安源
Owner 广州元泽汽车有限公司
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