What is powder coating composition analysis

There are two main categories of powder coatings: thermoplastic powder coatings and thermoset powder coatings. Thermoplastic powder coatings consist of thermoplastic resins, pigments, fillers, plasticizers, and stabilizers.

Thermoplastic powder coatings include: polyethylene, polypropylene, polyvinyl chloride, chlorinated polyether, polyamide, cellulose, polyester. Thermosetting powder coatings are composed of thermosetting resins, curing agents, pigments, fillers, additives, etc.

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Powder coatingIt is made of resinCuring agent, thermosetting powder coatings composed of antimicrobial agents, fillers and additivesThe main ingredient is resin, generally the resin content accounts for about 50%, the filler accounts for less than 50%, and the pigment belongs to the filler category, accounting for 30%. Pure white pigments have the highest content, and there are many inorganic pigments.

Powder coating features:

1. The product does not contain toxicity, solvents and volatile toxic substances, so there is no poisoning, no fire, no discharge of "three wastes" and other public hazards, and is fully in line with the national environmental protection law.

requirements. 2. The utilization rate of raw materials is high, and the powder produced by some well-known brands of powder manufacturers can be used for oversprayed powder, and the highest utilization rate can even reach more than 99.

3. After the pretreatment of the coated object, one-time construction, without primer, can obtain a coating film of sufficient thickness, which is easy to realize automatic operation, high production efficiency and can reduce costs.

4. The coating is dense, adhesive, impact strength and toughness, with high corner coverage, excellent chemical corrosion resistance and electrical insulation performance.

5. The storage and transportation of powder coating are safe and convenient.

Powder coating composition analysis is resin. The main component of powder coating is resin, which generally accounts for about 50% of resin, less than 50% of filler, and pigment belongs to the category of filler, accounting for 30%. Pure white pigments have the highest content, and there are many inorganic pigments.

In terms of environmental protection, you don't have to worry, the environmental performance of powder coatings is still very strong, and inorganic pigments include various metal oxides, chromates, carbonates, sulfates and sulfides.

Classification of powder coatings

Powder coating is a completely different form from general coating, and it exists in the state of fine powder. Since no solvents are used, it is called powder coating. The main characteristics of powder coating are: harmless, high efficiency, resource saving and environmental protection.

It has two main categories: thermoplastic powder coatings and thermosetting powder coatings.

Thermoplastic powder coatings are composed of components such as thermoplastic resins, pigments, fillers, plasticizers, and stabilizers. Thermoplastic powder coatings include: polyethylene, polypropylene, polyester, polyvinyl chloride, chlorinated polyether, polyamide, cellulose, polyester, etc.

Thermosetting powder coatings are composed of thermosetting resins, curing agents, pigments, fillers and additives. Thermosetting powder coatings include epoxy resin, epoxy polyester, polyester, polyurethane, acrylic resin, etc. Disadvantages: uneven powder on the corners.

1. After curing, the defects of the coating film are difficult to cover, the curing conditions are high, and the use of the substrate is limited.

There are many classification standards, and the names of various types of powders on the market are uneven. According to the properties of film-forming substances, it is divided into two categories: thermoplastic powder coatings and thermosetting powder coatings. Or according to the appearance of film-forming substances, they can be divided into matting type, high-gloss type, art type, etc.

It can also be divided into two categories: indoor type and outdoor type according to the use environment.

Powder coating is a kind of coating containing 100% solids, in powder form, using electrostatic adsorption coating, mainly composed of resin, curing agent, pigment, filler and additives, etc., it is different from general solvent-based coatings and water-based coatings, not using solvent or water as a dispersion medium, but with the help of air as a dispersion medium. Therefore, the organic solvent (VOC) of powder coating is equal to zero, which not only saves a lot of resources, but also avoids the atmospheric pollution caused by the photochemical reaction and toxicity of organic solvents, and also avoids the problems of wastewater treatment, which is an ideal coating variety that meets the requirements of environmental protection.

According to the curing mechanism or curing method of powder coating film-forming substances, there are thermoplastic, thermosetting, radiation curing, radiation-heat dual curing.

According to the use of powder coatings, there are mainly decorative coatings and functional coatings. Decorative powder coatings can form a variety of different textures and special effects such as plane, wood grain, sand grain, wrinkles, skin grain, metal flash, gradient color, rocky old color flowers, transparent, etc., among which flat coatings can have different gloss effects such as standard, matte, matte, flat and high-gloss; Functional powder coatings mainly include polyester, zinc-rich, weather-resistant, ultra-weather-resistant, fluorocarbon (PVDF), anti-bacterial, self-cleaning, heat insulation, high temperature resistance, anti-static and flame retardant and other different functional effects.

Summary. Powder coating is a solid powder synthetic resin coating composed of solid resin, pigments, fillers and additives. Unlike ordinary solvent-based paints and water-based paints, its dispersion medium is not solvent and water, but air.

It has the characteristics of no solvent pollution, 100% film formation, and low energy consumption. There are two main categories of powder coatings: thermoplastic and thermoset.

Hello! Kiss. Powder coating is a solid powder synthetic resin coating composed of solid resin, pigments, fillers and additives.

Unlike ordinary solvent-based paints and water-based paints, its dispersion medium is not solvent and water, but air. It has the characteristics of no solvent pollution, 100% film formation, and low energy consumption. There are two main categories of powder coatings: thermoplastic and thermoset.

What are the materials of powder?

Special resins, pigments and fillers, curing agents and other additives.

1. Decorative protective coating: used for shells and parts of household appliances, metal furniture, automobiles, instrumentation, bicycles, sewing machines, mechanical and electrical equipment, light industrial equipment, agricultural machinery, building hardware and other products;

2. Insulating and moisture-proof coating: used in transformers, cores, coils, resistors, batteries, etc. for motors, electrical appliances, electronic components and other products;

3. Anti-corrosion coating: used in chemical tanks, oil pipelines, drinking water pipelines and valve bodies, household goods, electroplating fixtures, etc.