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Water-based flash colored paint and preparation method thereof

A water-based paint technology, applied in the direction of metal-free paints, coatings, anti-corrosion coatings, etc., can solve the mechanical properties of paint films, poor chemical resistance, difficult to orientate water-based aluminum powder, and paint storage stability. Not strong and other problems, to achieve the effect of good random color effect, good flash effect and low VOC value

Inactive Publication Date: 2019-09-13
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, it is difficult to realize the directional arrangement of water-based aluminum powder (pearl powder) in the existing water-emulsion system of glitter paint, the storage stability of the paint is not strong, and the construction is difficult
After painting, the flash effect and color flop effect are poor
The mechanical properties and chemical resistance of the paint film are poor

Method used

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  • Water-based flash colored paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1, auxiliary tank, take a suitable container B, according to the mass fraction, first add 3 parts of water-based aluminum powder, then add 4.5 parts of solvent propylene glycol methyl ether, 4.5 parts of iso-octanol, stir at a low speed, add aluminum powder coating agent during the stirring process 1 part of polypropylene glycol, continue to stir for 20 minutes to make it fully mixed evenly, then let it stand for 30 minutes to make it ripen, and prepare a part of the aluminum paste for later use.

[0034] For the main cylinder, take a suitable container A, add 35 parts of water initially according to the mass fraction, start the disperser, disperse at a low speed, first add 5.5 parts of core-shell acrylic emulsion, then add 19 parts of water-based acrylic emulsion, self-crosslinking acrylic emulsion 17 parts, make it fully mixed evenly, add 0.2 parts of pH regulator, adjust the pH value to 8, then add 8.3 parts of methyl etherified high imino melamine resin. The...

Embodiment 2

[0036]Example 2, auxiliary tank, take a suitable container B, according to the mass fraction, first add 3 parts of water-based aluminum powder, then add 4.5 parts of solvent propylene glycol methyl ether, 4.5 parts of iso-octanol, stir at a low speed, add aluminum powder coating agent during the stirring process 1 part of polypropylene glycol, continue to stir for 20 minutes to make it fully mixed evenly, then let it stand for 30 minutes to make it ripen, and prepare a part of the aluminum paste for later use.

[0037] For the main cylinder, take a suitable container A, add 35 parts of water initially according to the mass fraction, start the disperser, and disperse at a low speed. 17 parts of non-toxic acrylic emulsion, make it fully mixed evenly, add 0.2 parts of pH adjuster, adjust the pH value to 8, and then add 8.3 parts of methyl etherified high imino melamine resin. Then add 0.7 parts of acetylene glycol defoaming wetting agent, add 1.3 parts of BASF RheovisAS 1130 rheo...

Embodiment 3

[0039] Example 3, auxiliary tank, take a suitable container B, according to the mass fraction, first add 3 parts of pearl powder, then add 4.5 parts of solvent propylene glycol methyl ether, 4.5 parts of isooctyl alcohol, stir at low speed for 20 minutes, make it fully mixed, and then statically Place it for 30 minutes to make it ripen to obtain the pearlescent powder part.

[0040] For the main cylinder, take a suitable container A, add 26 parts of water initially according to the mass fraction, start the disperser, disperse at a low speed, first add 5 parts of core-shell acrylic emulsion, then add 24 parts of water-based acrylic emulsion, self-crosslinking acrylic emulsion 22 parts, make it fully mixed evenly, add 0.2 parts of pH adjuster, adjust the pH value to 8, and then add 9 parts of methyl etherified high imino melamine resin. Then add 0.8 part of acetylenic diol antifoaming wetting agent, add rheology control agent 1 part of BASF Rheovis AS 1130, and disperse for 30 m...

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Abstract

The invention belongs to the technical field of chemical materials, and particularly relates to water-based flashing colored paint and a preparation method thereof. According to the invention, directionally arranged aluminum powder or pearl powder provides a flashing effect, an acrylic emulsion is a main film-forming substance, and an appropriate amount of a rheological control agent, a wetting leveling auxiliary agent, a defoaming agent, an aluminum powder wrapping agent, a dispersing agent and the like are added. The invention solves the problem that construction difficulty is large and reworking easily occurs in an existing water emulsion system due to the fact that the directional arrangement method of aluminum powder (pearl powder) is single and difficult and has a poor effect. A coating film of the coating has good flashing and optically variable decorative effect, storage stability of the paint is prolonged, no sediment, layering or floating phenomenon occurs after long-time placement, and the paint has the advantages of low volatile organic compound (VOC) value, safety and environmental protection. Meanwhile, mechanical performance and chemical resistance of the paint filmare superior to mechanical performance and chemical resistance of oily products of the same type.

Description

technical field [0001] The invention belongs to the technical field of chemical materials, and in particular relates to a water-based glitter paint and a preparation method thereof. Background technique [0002] In recent years, with the public's increasing awareness of safety and environmental protection, national and local governments have also continuously strengthened laws and regulations on environmental protection, and the development of industrial coatings to environmental protection coatings has become increasingly obvious. Among them, water-based coatings use water to replace volatile and harmful organic solvents, which can greatly reduce the pressure on environmental protection. [0003] As a coating material, baking-type water-based flash paint can meet the production efficiency of enterprises on the basis of minimal changes to the original oil-based production line, and has the advantages of safety and environmental protection. But for now, it is difficult to re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D161/32C09D151/00C09D5/38C09D5/08
CPCC08K2003/0812C08L2205/025C08L2205/035C09D5/08C09D5/38C09D133/04C08L33/04C08L61/32C08L51/003C08K3/08
Inventor 顾广新薛国明徐杰张景斌
Owner FUDAN UNIV
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