Outdoor MDF powder coating and application thereof

A powder coating, outdoor technology, used in powder coatings, anti-corrosion coatings, polyester coatings, etc., can solve the problems of single variety and difficult to meet requirements, and achieve the effects of high utilization rate, excellent anti-aging and strong adaptability

Inactive Publication Date: 2015-04-08
山东朗法博粉末涂装科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current outdoor powder coatings, especially MDF outdoor powd...

Method used

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  • Outdoor MDF powder coating and application thereof
  • Outdoor MDF powder coating and application thereof
  • Outdoor MDF powder coating and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The outdoor MDF powder coating is made of the following mass percentage raw materials:

[0051]

[0052] The whole process steps are:

[0053] (1) Weigh, extrude, crush and grind according to the formula;

[0054] (2) Electrostatic powder spraying is performed on the MDF that has undergone surface pretreatment, and the thermosetting coating is obtained by curing. The curing method adopts medium-wave infrared pulse radiation heating, the curing temperature is set to 130°C, and the curing time is 10 minutes.

Embodiment 2

[0056] The difference from Example 1 is the outdoor MDF powder coating formula and the setting of thermosetting conditions. The rest is the same as Example 1. The outdoor MDF powder coating formula in Example 2 is made of the following mass percentages of raw materials:

[0057]

[0058] The later thermosetting conditions are: curing temperature is 140°C, curing time is 8min.

Embodiment 3

[0060] The difference from Example 1 is the outdoor MDF powder coating formula and the setting of the thermosetting conditions. The rest is the same as Example 1. The outdoor MDF powder coating formula in Example 3 is made of the following mass percentage of raw materials:

[0061]

[0062] The later thermosetting conditions are: curing temperature is 150℃, curing time is 5min.

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Abstract

The invention belongs to the technical field of powder coating, and particularly relates to an outdoor MDF powder coating and application thereof. The outdoor MDF powder coating is prepared from the following raw materials in percentage by weight: 40-45 percent of polyester resin, 26.7-30 percent of acrylic resin, 0.1-0.5 percent of a curing accelerator, 3-5 percent of a functional additive, 3-30 percent of filler and 1.2-25 percent of a pigment. The powder coating disclosed by the invention is high in strength and toughness, resistant to friction and corrosion, high in dielectric coefficient, resistant to ultraviolet light and good in radiation resistance. The powder coating is high in utilization rate in construction and free of three wastes and satisfies the environmental protection requirements; in comparison with traditional paint spraying and film pressing processes, the powder coating disclosed by the invention is lower in cost and higher than the film pressing process in product shape adaptability, can be produced by adopting a large-scale industrial production way and is excellent in physical performances such as ageing resistance and weather resistance during coating.

Description

Technical field [0001] The invention belongs to the technical field of powder coatings, and specifically relates to an outdoor MDF powder coating and its application. Background technique [0002] With the rapid development of outdoor building materials, home appliances, and automobiles, the demand for outdoor coating products continues to increase. Both the number of varieties and performance requirements have raised many new issues that the coating industry and raw material manufacturers need to solve urgently. Powder coatings occupies a large proportion of outdoor weather-resistant coatings due to their high coating efficiency and pollution-free characteristics. [0003] Because powder coating is far more corrosion-resistant than solvent-based coating, the powder coating process is basically adopted for foreign road sign posts. The epoxy powder coating with poor weather resistance was adopted in the initial period of use, but now it has been gradually replaced by polyester or a...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D133/00C09D7/12C09D5/03C09D5/08C09D5/29C09D5/28B05D7/24B05D3/02
CPCB05D1/12B05D3/0263C08L2205/025C08L2205/035C09D5/03C09D5/08C09D5/28C09D5/29C09D7/40C09D167/00C08L33/00C08L67/00C08L23/06C08L33/08C08K13/02C08K3/346C08K2003/3045C08K5/3475C08K5/07
Inventor 张剑李国威邢方圆陈辉
Owner 山东朗法博粉末涂装科技有限公司
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