A kind of high flatness medium paint and preparation method thereof

A high-spreading and painting technology, which is applied in the field of intermediate coatings, can solve the problems that affect the smoothness of the appearance, the balance of gloss, fullness, blackness, dispersion, leveling, and flatness of the topcoat. To achieve the effect of improving paint leveling, leveling mirror effect, and enhancing shading

Active Publication Date: 2016-01-20
CHANGZHOU HUASHI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At the present stage, limited by market cost pressure, it is difficult to balance the blackness, dispersion, leveling and flatness of the black primer during material selection and manufacture, and the prepared black primer has a gloss of 30-60%. , a large number of fillers contained in the system affect its smooth appearance and contribution to the gloss and fullness of the topcoat

Method used

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  • A kind of high flatness medium paint and preparation method thereof
  • A kind of high flatness medium paint and preparation method thereof

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preparation example Construction

[0045] like figure 1 , the preparation method of the present invention's high flatness intermediate paint, its complete steps are as follows:

[0046] 1. Production preparation: Prepare modified acrylic resin, high Tg acrylic resin, isobutanol modified amino resin, low molecular weight epoxy resin, phosphoric acid polyester adhesion promoter, fluorine-modified The proportion of each component of acrylate leveling agent, carbon black slurry and mixed solvent. The equipment includes: dispersing and mixing equipment, paint mixing tank, electronic scale, key spoon and 10-liter convenient bucket, etc.

[0047] Two, production.

[0048] 3. Resin material mixing: leveling modified acrylic resin, high Tg acrylic resin, isobutanol modified amino resin, low molecular weight epoxy resin, phosphoric acid polyester adhesion promoter, fluorine modified acrylic ester Put the agent into the paint mixing tank, control the stirring speed at 500-600 rpm, stir for 20 minutes, and the various m...

Embodiment 1

[0053] Prepare raw materials, modified acrylic resin 22%; high Tg acrylic resin 18%; low molecular weight epoxy resin 2.6%; isobutanol modified amino resin 24%; phosphoric acid polyester adhesion promoter 1%; carbon black paste 22% %; Acrylic leveling agent 0.4%, mixed solvent 10%. The above raw materials are mixed according to the ratio: production preparation→resin material mixing→carbon black slurry and mixed solvent are mixed to prepare the finished intermediate coating.

Embodiment 2

[0055] Prepare raw materials, modified acrylic resin 19%; high Tg acrylic resin 23%; low molecular weight epoxy resin 4.0%; isobutanol modified amino resin 22%; phosphoric acid polyester adhesion promoter 1.5%; carbon black paste 24% %; Acrylic leveling agent 0.5%, mixed solvent 7%. The above raw materials are mixed according to the ratio: production preparation→resin material mixing→black slurry and mixed solvent are mixed to prepare the finished intermediate coating.

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Abstract

The invention relates to the technical field of intermediate coatings, in particular to a high-spreading intermediate coating, the main components of which include: 18-22% modified acrylic resin; 18-22% high Tg acrylic resin; 2.1-22% low molecular weight epoxy resin 4.1%; isobutanol modified amino resin 22-24%; phosphoric acid polyester adhesion promoter 1-2%; carbon black pulp 20-24%; acrylate leveling agent 0.4-0.6%; mixed solvent 7 -11%. The high-spreading intermediate paint of the present invention and the primer prepared by the preparation method can significantly improve the leveling property of the paint, the interlayer adhesion of multiple recoats, and enhance the shielding of the sand marks on the powder bottom, providing a very smooth High-gloss coating film with excellent mirror effect and various properties.

Description

technical field [0001] The invention relates to the technical field of intermediate coatings, in particular to a high-flatness intermediate coating and a preparation method thereof. Background technique [0002] With the increasingly fierce competition in the domestic auto market and more and more requirements for personalization and energy saving, the style of the wheel hub that supports the car has become unique. There is a sense of hierarchy and the corresponding wheels are also novel and domineering. The decoration on the surface of the wheels is not only silver as the main paint color, but a series of blacks such as electroplated silver, fine car, black, and black matte are used as the basis. Various colors showing a special metallic feeling and black tone are used as decorations on the base coat, which requires the black base coat not only to have a pure color but also to have good leveling, fineness, flatness, Toughness after high temperature resistance and good foil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00C09D161/32C09D7/12
Inventor 黄勤力
Owner CHANGZHOU HUASHI CHEM
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