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Preparation method of water-based paint coating

A technology of water-based paint and water-based slurry, which is applied in coatings, polyester paints, rayon manufacturing, etc., and can solve problems such as coating thickness

Active Publication Date: 2021-02-12
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a representative of environmentally friendly coatings, powder coatings have derived different types of products in order to meet the market needs of various application fields, and their applications in the automotive field are also expanding. In recent years, they have been widely used in hoods and body parts. Parts coating, but due to its thick coating, it has not been widely used in automotive exterior coatings that require high appearance

Method used

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  • Preparation method of water-based paint coating
  • Preparation method of water-based paint coating
  • Preparation method of water-based paint coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A water-based paint coating, the film-forming components are formulated into water-based slurry, and the curing components and functional fillers are dispersed through a low-temperature wet grinding process; with the help of electrospinning, the slurry is sprayed to the metal substrate through a strong electric field to form filaments, By controlling the moving speed of the substrate in the horizontal direction, a comprehensive and uniform fiber coverage is formed on the metal substrate, and then cured to obtain a very thin powder coating, which is prepared according to the following steps:

[0024] (1) Pulping: Take 100g of polyester and TGIC powder, 1g of nano-silicon dioxide, 20g of polyvinyl alcohol powder and 400g of deionized water. The initial particle size of each material is less than 150 mesh. Grinding equipment, the grinding medium is zirconia microspheres, the grinding speed is 1700rpm, the temperature of the material during the grinding is controlled below 3...

Embodiment 2

[0027] A kind of water-based paint coating, similar to embodiment 1, is prepared according to the following steps:

[0028] (1) Pulping: Take 100g of polyester and TGIC powder, 5g of nano-silica, 90g of polyvinyl alcohol powder, and 900g of deionized water as ingredients. After premixing, pour them into wet grinding equipment. The grinding medium is zirconia micro Ball, the grinding speed is 2000rpm, the temperature of the material is controlled below 3°C during the grinding, when the particle size D90=0.5μm in the material is discharged, the coating slurry is obtained;

[0029] (2) Coating: The electrospinning equipment is the same as that in Example 1, and the coating slurry is added to the rubber tank 1, and at the same time connected to the peristaltic pump slurry feeding circulation system, the spiral rubber roller 3 is connected to a 100KV high voltage and Rotate the glue at an appropriate speed, the metal base 4 directly above the rubber tank 1 is grounded and moves hor...

Embodiment 3

[0031] A kind of water-based paint coating, similar to embodiment 1, is prepared according to the following steps:

[0032] (1) Pulping: Take 100g of polyester and TGIC powder, 2g of nano-silica, 50g of polyvinyl alcohol powder, and 600g of deionized water as ingredients. After premixing, pour them into wet grinding equipment. The grinding medium is zirconia micro Ball, the grinding speed is 1800rpm, the temperature of the material is controlled below 3°C during the grinding period, when the particle size D90=0.3μm in the material is discharged, the coating slurry is obtained;

[0033] (2) Coating: The electrospinning equipment is the same as in Example 1, and the coating slurry is added to the sizing tank, and connected to the peristaltic pump slurry feeding circulation system at the same time. The rubber roller is connected to 80KV high voltage and rotates at a suitable speed for gluing. The metal substrate directly above the trough is grounded and moves horizontally and uni...

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Abstract

The invention discloses a preparation method of a water-based paint coating. A film-forming component is prepared into water-based slurry, the water-based slurry is ground into slurry with very high fineness requirements through a low-temperature wet grinding process, and the curing component and the functional filler can be well dispersed; by means of an electrostatic spinning mechanism, slurry is jetted to a metal substrate through strong electric field force to form filaments, comprehensive and uniform fiber coverage is formed on a metal substrate by controlling the moving speed of the substrate in the horizontal direction, a very thin powder coating is obtained through curing treatment, and the hardness index is very ideal. No organic solvent participates in the technological process,and the preparation method is very environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a preparation method of a water-based paint coating. Background technique [0002] With the development of society and the improvement of people's living standards, a series of environmental problems such as environmental pollution and greenhouse effect have become more prominent year by year. Human beings have further realized the urgency and importance of protecting the environment. Saving energy and protecting the environment have become the The two major themes of the world's economic development are highly valued. All countries are devoting themselves to the development of energy-saving products, and at the same time strict environmental protection laws and regulations. As a representative of environmentally friendly coatings, powder coatings have derived different types of products in order to meet the market needs of various application fields, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D129/04C09D7/61D01F8/14D01F8/10D01F1/10D01D5/00
CPCC08K2201/011C09D129/04C09D167/00C09D7/61D01D5/003D01D5/0084D01F1/10D01F8/10D01F8/14C08L29/04C08K3/36
Inventor 崔大祥陈超王敬锋林琳金彩虹
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH