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Extra-weather-resistant 3D polyester powder coating composition and preparation method thereof

A polyester powder and super-weather-resistant technology, which is applied in powder coatings, polyester coatings, coatings, etc., can solve problems such as poor water resistance, scratch resistance, and UV protection, which cannot meet the requirements and are expensive. Increase the effect of decorative performance, strong adhesion and bright colors

Inactive Publication Date: 2017-12-08
湖北睿智新材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid development of our country's economy and the improvement of people's living standards, people's demand for the quality and color diversity of supplies involved in daily life is also increasing. Gold embodies magnificence and is essential for some luxurious decorations. color, but the traditional coatings currently used are not only expensive, but also have poor water resistance, scratch resistance, and UV protection. For those who pursue a high-quality life, they are far from meeting the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Weigh the following appropriate amount of raw materials as the base powder, including 40 parts of thermosetting carboxyl-terminated polyester resin, 16 parts of acrylic resin, 0.8 part of curing agent, 30 parts of extinction barium sulfate, 0.8 part of leveling agent, 0.5 part of dispersant, 0.4 part of air agent, 0.01 part of loosening agent, 0.48 part of ultraviolet light absorber, 0.45 part of antioxidant, 0.08 part of accelerator, 0.08 part of sodium tetrafluoride, and 1 part of pigment. The above raw material mixture is passed through the high-speed mixer in turn, pre-mixed at 85r / min for 3 minutes, and then melted and extruded into an extruder with a temperature of 110°C in zone I and a temperature of 105°C in zone II to make it a sheet-like solid. Then it is cooled and crushed into small pieces of solid by tableting, and then crushed and classified by an air classifying mill, and finally sieved and separated by a vibrating sieve to obtain a base powder;

[0021] ...

Embodiment 2

[0026] Weigh the following appropriate amount of raw materials as the base powder, 44 parts of thermosetting carboxyl-terminated polyester resin, 17.6 parts of acrylic resin, 1.2 parts of curing agent, 32 parts of extinction barium sulfate, 1 part of leveling agent, 0.6 parts of dispersant, degassing 0.5 parts of agent, 0.02 parts of loosening agent, 0.5 parts of ultraviolet absorber, 0.5 parts of antioxidant, 0.1 part of accelerator, 0.1 part of sodium tetrafluoride, and 2 parts of pigment. The above raw material mixture is passed through the high-speed mixer in turn, pre-mixed at 85r / min for 3 minutes, and then melted and extruded into an extruder with a temperature of 110°C in zone I and a temperature of 105°C in zone II to make it a sheet-like solid. Then it is cooled and crushed into small pieces of solid by tableting, and then crushed and classified by an air classifying mill, and finally sieved and separated by a vibrating sieve to obtain a base powder;

[0027] Weigh t...

Embodiment 3

[0032]Weigh the following appropriate amount of raw materials as the base powder, 60 parts of thermosetting carboxyl-terminated polyester resin, 18.4 parts of acrylic resin, 1.6 parts of curing agent, 34 parts of extinction barium sulfate, 1.2 parts of leveling agent, 0.7 parts of dispersant, degassing 0.6 parts of agent, 0.03 parts of loosening agent, 0.52 parts of ultraviolet light absorber, 0.55 parts of antioxidant, 0.12 parts of accelerator, 0.12 parts of sodium tetrafluoride, and 3 parts of pigment. The above raw material mixture is passed through the high-speed mixer in turn, pre-mixed at 85r / min for 3 minutes, and then melted and extruded into an extruder with a temperature of 110°C in zone I and a temperature of 105°C in zone II to make it a sheet-like solid. Then it is cooled and crushed into small pieces of solid by tableting, and then crushed and classified by an air classifying mill, and finally sieved and separated by a vibrating sieve to obtain a base powder;

...

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PUM

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Abstract

The invention provides an extra-weather-resistant 3D polyester powder coating composition which comprises bottom powder and surface powder, wherein the bottom powder is composed of the following raw materials in parts by weight: 40-60 parts of a thermosetting carboxyl-terminated polyester resin, 16-18.4 parts of acrylic resin, 0.8-1.6 parts of a curing agent, 30-34 parts of extinction barium sulfate, 0.8-1.2 parts of a flatting agent, 0.5-0.7 part of a dispersing agent, 0.4-0.6 part of a degassing flux, 0.01-0.03 part of a bulking agent, 0.48-0.52 part of an ultraviolet absorber, 0.45-0.55 part of an antioxidant and other aids; and the surface powder is composed of the following raw materials in parts by weight: 60-72 parts of a thermosetting carboxyl-terminated polyester resin, 4.6-6.6 parts of a curing agent, 19-20 parts of extinction barium sulfate, 0.5-0.7 part of a dispersing agent, 0.01-0.03 part of a bulking agent, 0.48-0.52 part of an ultraviolet absorber, 0.45-0.55 part of an antioxidant, 0.05-0.15 part of an embossing agent and other aids. According to the coating composition disclosed by the invention, the decorative performance is increased, and the performances such as water resistance, scratch resistance and ultraviolet resistance are enhanced, so that the grade of the product is greatly improved.

Description

technical field [0001] The invention relates to a powder coating, in particular to a super weather-resistant 3D polyester powder coating composition and a preparation method thereof. Background technique [0002] Powder coating is a new type of solvent-free 100% solid powder coating, which has the characteristics of no solvent, no pollution, recyclable, environmental protection, energy and resource saving, reduced labor intensity and high mechanical strength of the coating film. It has been widely used in industrial , construction and other production processes. With the rapid development of my country's economy and the improvement of people's living standards, people's demand for the quality and color diversity of daily necessities is getting higher and higher. Gold embodies magnificence and is essential for some luxurious decorations. However, the traditional coatings currently used are not only expensive, but also have poor water resistance, scratch resistance, and UV pro...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D133/00C09D5/03C09D7/12
CPCC09D167/00C08K3/16C08K2003/3045C09D5/033C08L33/00C08K13/02C08K3/30
Inventor 王文军
Owner 湖北睿智新材料有限责任公司
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