DESCRIPTION

The following is a detailed introduction:

Material properties

Chemical structure: The full name of PFA is polyperfluoroalkoxyethylene, which is a high-performance fluoroplastic copolymerized by tetrafluoroethylene (TFE) and perfluoropropyl vinyl (FPVE). The presence of carbon-fluorine bonds gives PFA extremely high chemical stability and thermal stability.

Chemical corrosion resistance: It can resist the erosion of almost all known acids, alkalis, salts and organic solvents, and can remain stable even in extreme chemical environments. It is very suitable for chemical equipment, pipelines and other occasions that require high corrosion resistance.

High temperature resistance: The long-term use temperature range is -200℃ to +260℃, and the melting point is as high as 305℃. It can maintain its physical and chemical properties in high temperature environments and can meet the needs of high-temperature industrial environments such as petrochemicals and semiconductor production.

Low friction coefficient: The surface is smooth and has an extremely low friction coefficient. It is suitable for parts that require low friction and low wear. It has special advantages in food processing equipment, medical equipment and other fields. It is not easy to adhere to other substances and is easy to clean.

Electrical insulation: It has excellent electrical insulation performance and is suitable for insulating parts of electronic equipment and electrical systems. It can work stably under high voltage.

Processing performance: It is a thermoplastic resin with excellent melt fluidity and good film-forming performance. It can be processed by various processes such as electrostatic spraying, fluidized bed coating, and rotational molding to make coated products of various shapes.

Product model

AC-5539: Gray powder, suitable for electrostatic coating.
AC-5600: White powder, used for electrostatic coating, can form a single coating with a thickness of up to 100 microns, with good chemical resistance and appearance.
AC-5820: White powder, high purity, mainly used for rotational molding and lining, can provide good corrosion resistance and hygienic properties.
AC-5830: Gray powder, mixed use can improve heat resistance, often used for rotational molding and lining.
ACX-21: White powder, used for thin film, improved wear resistance, suitable for electrostatic coating.
ACX-31: White powder, used for thin film, with good electrostatic spraying performance.
ACX-34: White powder, high purity, thin film, made by high purity treatment, has excellent non-stickiness, and is also a common material for electrostatic coating.
 

Application field

Chemical industry: It can be used to manufacture coatings for chemical equipment, pipelines, reactors, filters, etc., to ensure the long-term stability of equipment in harsh environments such as strong acids and alkalis.

Semiconductor industry: In semiconductor manufacturing, it is often used for coatings of high-purity pipelines, valves and joints to ensure the ultra-cleanliness and corrosion resistance of the system and meet the high environmental requirements of semiconductor production.

Medical equipment: The material is non-toxic and odorless, meets food safety standards, and can be used to manufacture coatings for medical equipment and pharmaceutical equipment parts, such as surgical instruments, catheters, etc., using its non-stickiness and biocompatibility to improve the performance and safety of the equipment.

Food processing: It can be used for coatings of food processing equipment, such as baking trays, grills, conveyor belts, molds, etc., to ensure the safety of food contact, prevent food adhesion, facilitate cleaning, and improve production efficiency.

Aerospace: Its high temperature resistance and chemical resistance make it an ideal material for coating seals, cable protective sleeves and other parts in the aerospace field, and it can ensure the performance of parts under extreme environmental conditions.

Process characteristics: Taking ACX-34 as an example, when spraying, the substrate is generally roughened first, and then the primer is sprayed. EK-1200 series and TC-1500 series can be used as primers. After the primer is dried and thoroughly cooled, use an electrostatic spray gun (voltage 20-50kV) to spray ACX-34 to 30-80μm. After spraying, immediately put it into the sintering furnace for sintering. The recommended sintering conditions are above 380℃ for 20min, and the temperature generally does not exceed 450℃ to prevent the resin from decomposing.

Advantages and Disadvantages

Advantages: It has super chemical resistance, high temperature resistance, excellent electrical insulation, low friction coefficient and non-stickiness, and is environmentally friendly and does not contain harmful substances.

Disadvantages: The production cost is high, resulting in a relatively expensive product price; PFA material has a high hardness and is difficult to process, requiring the use of professional processing equipment and technology; the thermal expansion coefficient is large, and it is easy to deform in high or low temperature environments, which may affect the bonding strength between the coating and the substrate and the overall performance of the coating; in some specific extreme environments, such as strong acid environments, its performance may be affected.

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