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Food-grade powder coating as well as preparation method and application thereof

A technology of powder coating and phenolic epoxy resin, applied in the field of coatings, can solve the problems of short curing time, heavy corrosion resistance, limitation, etc., and achieve the effects of short curing time, good adhesion and low curing temperature

Active Publication Date: 2019-02-15
GUANGZHOU KINTE IND
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Therefore, the market capacity of powder coatings for water pipes and valves is large and the prospect is promising. However, powder coatings for water pipes and valves not only require excellent heavy-duty anti-corrosion properties, but also meet food-grade hygiene and safety requirements, which limits its further development.
[0004] How to improve the formulation of powder coatings, so that it not only has heavy anti-corrosion, strong impact resistance, short curing time, excellent coating appearance and other comprehensive properties, but also meets the requirements of food-grade hygiene and safety is still a great challenge.

Method used

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  • Food-grade powder coating as well as preparation method and application thereof
  • Food-grade powder coating as well as preparation method and application thereof
  • Food-grade powder coating as well as preparation method and application thereof

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Embodiment Construction

[0033] Examples are further listed below to describe the present invention in detail. It should also be understood that the following examples are only used to further illustrate the present invention, and should not be construed as limiting the protection scope of the present invention. Some non-essential improvements and adjustments made by those skilled in the art according to the principles set forth in the present invention all belong to the present invention scope of protection. The specific process parameters and the like in the following examples are only examples of the appropriate range, that is, those skilled in the art can make a selection within the appropriate range through the description herein, and are not limited to the specific data exemplified below.

[0034] Below in conjunction with embodiment and comparative example the present invention is described in detail, and the component of the powder coating of each embodiment and comparative example sees table ...

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Abstract

The invention discloses a food-grade powder coating as well as a preparation method and application thereof. The powder coating comprises modified phenolic epoxy resin, a phenolic curing agent and anaid. The powder coating has the properties of high corrosion resistance, strong impact resistance, low curing temperature, short curing time, good adhesion force, excellent coating appearance and thelike, can meet the food-grade health and safety requirements and is particularly suitable for the protection of water-related workpieces or containers such as water pipes, valves and water faucets andthe like for drinking water or groundwater.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a food-grade powder coating and a preparation method and application thereof. Background technique [0002] Powder coating has the characteristics of energy saving, no VOC emission, and safe use. In recent years, with the change of national environmental protection policy, "paint to powder" has become the general trend, and domestic powder coating technology has developed rapidly. The water pipes and valves that were originally painted with paint began to be gradually switched to powder coating. [0003] Powder coating products for water pipes and valves are mainly used in the protection of drinking water transmission and distribution equipment, such as the protective coating of the inner and outer walls of metal substrates for water-related products such as water pipes and valves. The coating thickness is usually 300~ 500μm, which is thicker than the coating thickness of general industr...

Claims

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Application Information

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IPC IPC(8): C09D163/04C09D5/03C09D5/08
CPCC09D5/03C09D5/08C09D163/04
Inventor 戴创波史中平罗绵生肖龙和曹秋秋
Owner GUANGZHOU KINTE IND
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