Water-resisting powder coating

A technology of powder coating and water resistance, applied in powder coating, anti-fouling/underwater coating, anti-corrosion coating, etc. It can solve the problems that powder coating cannot meet the fields of corrosion, antibacterial and protection, large energy consumption and narrow application range, etc. Achieve the effects of improving brittleness and cracking, short storage time, long service life and prolonging the action time

Inactive Publication Date: 2016-04-13
TONGLING SIDE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The patent number is CN201510396989.7 "A New Type of Low-Temperature Curing Epoxy Powder Coating". It is an important method for general-purpose powder coatings with high curing temperature, narrow application range and high energy consumption. It uses the good compatibility characteristics of bisphenol A epoxy resin and modified crosslinking agent to make the

Method used

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Experimental program
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Embodiment Construction

[0014] A water-resistant powder coating is prepared from the following raw materials in parts by weight (kg): 0.2 dimethylimidazole, 2 zinc sulfate, 12 kaolin, 5 dicyandiamide, 1 guar gum, 4 polyurethane emulsion, 4 beryllium oxide 1. Coal tar 2, molybdenum disulfide 2, bamboo charcoal powder 5, aluminum powder 2, calcium ascorbate 0.7, epoxy resin 90, phenolic resin 6, rare earth chloride 0.1, chitosan 15, polyvinyl alcohol 4.

[0015] The water-resistant powder coating is prepared by the following specific steps:

[0016] (1) Dissolve guar gum with 11 times the amount of water, then add molybdenum disulfide and beryllium oxide to disperse evenly by ultrasonic, stir with slight heat until it forms a viscous substance for later use;

[0017] (2) coating the viscous material prepared in step (1) on the surface of the bamboo charcoal powder, dipping it into the polyurethane emulsion after drying, vacuuming for 5 minutes, then taking out, drying and grinding into micropowder for ...

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Abstract

The invention discloses water-resisting powder coating. The water-resisting powder coating is prepared from the following raw materials in parts by weight: 0.2 to 0.8 part of dimethylimidazole, 2 to 3 parts of zinc sulfate, 12 to 14 parts of kaolin, 5 to 6 parts of dicyandiamide, 1 to 2 parts of guar gum, 4 to 5 parts of polyurethane emulsion, 1 to 2 parts of beryllium oxide, 2 to 3 parts of coal tar, 2 to 3 parts of molybdenum disulfide, 5 to 6 parts of bamboo charcoal powder, 2 to 3 parts of aluminum powder, 0.7 to 1 part of calcium ascorbate, 90 to 100 parts of epoxy resin, 6 to 8 parts of phenolic resin, 0.1 to 0.2 part of rare earth chloride, 15 to 18 parts of chitosan and 4 to 5 parts of polyvinyl alcohol. The powder coating prepared by the invention has good water resistance and oil resistance, and excellent acid and alkali corrosion resistance, can be used for coating outdoors and has a good comprehensive performance and a long service life.

Description

technical field [0001] The invention relates to the technical field of powder coatings, in particular to a water-resistant powder coating. Background technique [0002] Powder coatings have the characteristics of no solvent, no environmental pollution, high powder recovery and high utilization rate, and are widely used. Powder coatings can be divided into two categories: thermoplastic and thermosetting. Thermoplastic powder coating uses thermoplastic resin as film-forming material. Its characteristic is that the synthetic resin becomes softer as the temperature rises and becomes hard after cooling. This process can be repeated many times, and it will gradually age after each change. The final result is a non-plastic powder. Thermosetting powder coatings use thermosetting synthetic resins as film-forming substances. It is characterized by the use of some prepolymer resins with a lower degree of polymerization, which are cured by baking at a certain temperature in the prese...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D161/14C09D105/08C09D129/04C09D5/03C09D5/08C09D5/14C09D7/12
CPCC09D163/00C08L2201/02C08L2201/08C08L2205/035C08L2205/16C08L2312/00C09D5/033C09D5/08C09D5/14C08L61/14C08L5/08C08L29/04C08K13/06C08K9/10C08K3/04C08K3/346C08K2003/0812
Inventor 孔华英
Owner TONGLING SIDE TECH
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