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A kind of paint repair paste for car scratch repair and preparation method thereof

A paint and scratch technology, applied in the field of repair paint paste for automobile scratch repair and its preparation, can solve the problems of poor dispersibility of bacterial cellulose powder and aluminum powder, affecting the repair effect, etc., so as to shorten the surface drying time , maintenance repair effect, foam reduction effect

Active Publication Date: 2021-07-27
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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  • A kind of paint repair paste for car scratch repair 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 to stir 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 for repairing scratches in automobiles. , 2-3 parts of modified filler, 2-3 parts of aluminum-zinc tripolyphosphate powder, 5-8 parts of modified metal powder, 0.6-1 part of wetting and dispersing agent, 0.5-0.7 part of defoamer, 0.5 part of thickener -0.7 parts and 10-16 parts of deionized water; the invention also discloses a preparation method of the paint repair paste. The invention adopts the water-based epoxy resin as the paint-repairing paste matrix, and modifies it with an organosilicon oligomer, improves the flexibility and surface tension of the epoxy resin, does not use an organic solvent containing volatile substances, and is environmentally friendly; By adding modified fillers, the paint film coating has excellent corrosion resistance, and the modified metal powder can be stably and highly dispersed in the paint paste, which can improve the metallic luster of the paint film; the obtained paint repair paste is green and environmentally friendly, and can maintain repair for a long time Effect.

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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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/10C09D7/65C09D7/62C09D7/20
Inventor 童娜娜
Owner 广州元泽汽车有限公司
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