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Scratch-resistant special coating and preparation method thereof

A scratch-resistant and coating technology, used in polyester coatings, polyether coatings, coatings, etc., can solve the problems of unsatisfactory scratch resistance, easy precipitation of coatings, easy cracking of coatings, etc., and achieves excellent thixotropy and Wetting, excellent scratch resistance, breakage avoidance

Inactive Publication Date: 2020-04-03
湖南太子化工涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the coating has a certain wear resistance, the coating is easy to precipitate, and the brittleness of the coating is relatively large, so that the coating is easy to break under external force shearing and scratching, and the scratch resistance effect is not ideal.

Method used

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  • Scratch-resistant special coating and preparation method thereof
  • Scratch-resistant special coating and preparation method thereof
  • Scratch-resistant special coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In the embodiment of the present invention, a scratch-resistant special coating includes the following raw materials in parts by weight:

[0030]

[0031]

[0032] A method for preparing a scratch-resistant special paint, comprising the following steps:

[0033] (1) Add polyester acrylate and amine-modified polyether acrylate to reactor A in sequence, and stir for 10-20min at a speed of 400-500r / min; , a dispersant, a thickener, a leveling aid and a polymerization inhibitor are added to the reactor A, and stirred for 30 minutes at a speed of 250-300r / min to obtain a solvent;

[0034] (2) Add nano-silica and aliphatic alcohol to autoclave B and react at 225-230° C. for 3 hours to obtain ethanol solvent;

[0035] (3) Slowly add the ethyl solvent into the reactor A, and stir for 20-30min at a speed of 400-450r / min;

[0036] (4) Add photoinitiator and ethoxylated trimethylolpropane triacrylate into reaction kettle A in sequence, and stir at 100-150 r / min for 20-25 m...

Embodiment 2

[0038] In the embodiment of the present invention, a scratch-resistant special coating includes the following raw materials in parts by weight:

[0039]

[0040] A method for preparing a scratch-resistant special paint, comprising the following steps:

[0041] (1) Add polyester acrylate and amine-modified polyether acrylate to reactor A in sequence, and stir for 10-20min at a speed of 450-500r / min; , a dispersant, a thickener, a leveling aid and a polymerization inhibitor are added to the reactor A, and stirred for 40-45min at a speed of 300-350r / min to obtain a solvent;

[0042] (2) Add nano silicon dioxide and aliphatic alcohol to autoclave B and react at 240-250° C. for 3h-3.5h to obtain ethanol solvent;

[0043] (3) Slowly add the ethyl solvent into the reactor A, and stir for 30-40min at a speed of 500-600r / min;

[0044] (4) Add photoinitiator and ethoxylated trimethylolpropane triacrylate into reaction kettle A in sequence, and stir for 25-30min at a rotating speed ...

Embodiment 3

[0046] In the embodiment of the present invention, a scratch-resistant special coating includes the following components by weight:

[0047]

[0048] A method for preparing a scratch-resistant special paint, comprising the following steps:

[0049] (1) Add polyester acrylate and amine-modified polyether acrylate to reactor A in turn, and stir for 10-20min at a speed of 400-450r / min; , a dispersant, a thickener, a leveling aid and a polymerization inhibitor are added to the reactor A, and stirred for 40-45min at a speed of 300-350r / min to obtain a solvent;

[0050](2) Add nano silicon dioxide and aliphatic alcohol to autoclave B and react at 225-230° C. for 3h-3.2h to obtain ethyl solvent;

[0051] (3) Slowly add the ethyl solvent into the reactor A, and stir for 20-30min at a speed of 400-500r / min;

[0052] (4) Add photoinitiator and ethoxylated trimethylolpropane triacrylate into reaction kettle A in sequence, and stir at 100-150 r / min for 20-25 min.

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Abstract

The invention discloses a scratch-resistant special coating and a preparation method thereof. The scratch-resistant special coating comprises polyester acrylate, amine modified polyether acrylate, ethoxylated trimethylolpropane triacrylate, a wetting agent, a dispersing agent, a thickening agent, a leveling aid, nano silicon dioxide, fatty alcohol, a photoinitiator and a polymerization inhibitor.The preparation method comprises the following steps: sequentially adding the polyester acrylate, the amine modified polyether acrylate, a coalescing agent, the leveling aid, the wetting agent, the dispersing agent, the thickening agent and the polymerization inhibitor into a reaction kettle A, stirring the materials to obtain a solvent A, adding nano silicon dioxide and fatty alcohol into a high-pressure reaction kettle B to obtain a solvent B, slowly adding the solvent B into the solvent A, then mixing and stirring the materials, finally sequentially adding the photoinitiator and ethoxylatedtrimethylolpropane triacrylate into the reaction kettle A, and stirring the materials to obtain a coating. The prepared coating has excellent wear resistance, scratch resistance and good comprehensive mechanical properties.

Description

technical field [0001] The invention relates to the technical field of paint formulations, in particular to a scratch-resistant special paint and a preparation method thereof. Background technique [0002] With the development of modern science and technology, artificial satellites, spaceships, high-speed trains, impellers of steam turbines and engines, propellers of ships, blades of hydroelectric generators, decks of ships, floors of buildings, road marking paint, etc. The high-speed airflow, the erosion of sand and water, and the action of mechanical force, the wear of the material is quite serious. In order to prolong the service life, the surface of the material needs to be coated with wear-resistant paint. [0003] The application number is CN106700681A, which discloses a wear-resistant and scratch-resistant coating and its preparation method, which is prepared by the following method: firstly, a mixed solution of alkaline silica sol, distilled water and acetic acid is ...

Claims

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Application Information

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IPC IPC(8): C09D167/06C09D171/00C09D7/20C09D7/62
CPCC08K2201/011C09D167/06C09D7/20C09D7/62C08L71/00C08K9/04C08K3/36
Inventor 刘骏
Owner 湖南太子化工涂料有限公司
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