High-impact-resistance powder coating

A powder coating and impact-resistant technology, used in powder coatings, anti-corrosion coatings, polyester coatings, etc., can solve the problems that powder coatings cannot meet the corrosion, antibacterial and protection fields, high energy consumption, and narrow application range, etc. Brittle and easy to crack, the storage time is not long, the preparation method is simple, and the wear resistance and corrosion resistance are improved.

Inactive Publication Date: 2016-10-05
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 coating have excellent adhesion, It has the advantages of impact resistance, heat and humidity resistance, etc. The filler uses precipitated barium sulfate and active silica powder to make the coating have good acid resistance and alkali resistance, but the powder coating prepared by this invention cannot meet the needs of corrosion, antibacterial and protection fields

Method used

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Embodiment Construction

[0014] A powder coating with high impact resistance, prepared from the following raw materials in parts by weight (kg): polydimethylsiloxane 0.3, sodium silicate 1, saturated polyester resin 12, stainless steel powder 2, heavy carbonic acid Calcium 6, ceramic slag powder 8, benzoin 1, dicyandiamide 3, zinc sulfide 1, boron carbide 3, fumed silica 1, anti-scorch agent CTP1, polyvinyl acetate emulsion 3, epoxy resin 90, phenolic resin 6 , rare earth chloride 0.1, chitosan 15, polyvinyl alcohol 4.

[0015] The powder coating with high impact resistance is prepared by the following specific steps:

[0016] (1) Dissolve sodium silicate with 10 times the amount of water, then add stainless steel powder and boron carbide and stir evenly, stir with slight heat until a viscous slurry is formed for later use;

[0017] (2) Coat the slurry prepared in step (1) on the surface of heavy calcium carbonate, add it to an oven for drying, add it to polyvinyl acetate emulsion after cooling, and ...

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Abstract

The invention discloses a high-impact-resistance powder coating which is prepared from, by weight, 0.3-.0.4 part of polydimethylsiloxane, 1-2 parts of sodium silicate, 12-14 parts of saturated polyester resin, 2-3 parts of stainless steel powder, 6-8 parts of heavy calcium carbonate, 8-9 parts of ceramic slag powder, 1-2 parts of benzoin, 3-4 parts of dicyandiamide, 1-2 parts of zinc sulfide, 3-4 parts of boron carbide, 1-2 parts of fumed silica, 1-2 parts of scorch retarder CTP, 3-5 parts of polyvinyl acetate emulsion, 90-100 parts of epoxy resin, 6-8 parts of phenolic resin, 0.1-0.2 part of rare earth chloride, 15-18 parts of chitosan and 4-5 parts of polyvinyl alcohol. The powder coating prepared has excellent adhesion, hardness, chemical resistance and physical and mechanical performance, has excellent impact resistance and is simple in preparation method worthy of popularization.

Description

technical field [0001] The invention relates to the technical field of powder coatings, in particular to a powder coating with high impact resistance. Background technique [0002] Powder coating has the characteristics of solvent-free, non-environmental pollution, powder recovery and high utilization rate, and has been widely used. Powder coatings can be divided into two categories: thermoplastic and thermosetting. Thermoplastic powder coatings use thermoplastic resin as a film-forming substance. Its characteristic is that the synthetic resin becomes soft as the temperature rises and becomes hard after cooling. This process can be repeated many times, and it will gradually age after each change. Eventually it becomes 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 baked and solidified at a certain tem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D167/00C09D5/03C09D5/08C09D5/14C09D7/12
CPCC08L2205/035C08L2205/16C09D5/033C09D5/08C09D5/14C09D163/00C08L67/00C08K13/02C08K2003/265C08K3/38C08K5/3155C08K3/36
Inventor 孔华英
Owner TONGLING SIDE TECH
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