| Material: | PFA |
|---|---|
| Usage: | Engineering Plastics |
| Plastic Properties After Heated: | Thermoplastic Plastics |
| Plastic Forming Method: | Extrusion |
| Color: | Natural |
| Lead Time: | 2 Days After Deposit |
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier PFA 445HP X
Packing:25kg/bag
For inventory control purposes, product name may be followed by an X. Products labeled PFA 445HP and PFA 445HP X are equivalent, and all information in this document is applicable to both.
Description
PFA 445HP is a special purpose fluoroplastic resin available in pellet form.This resin is a chemically modified form of PFA 345 that combines many of the benefits of the parent resin (excellent resistance to environmental stress-cracking with a typical MIT folding endurance of 50,000*) with several additional benefits including enhanced purity, improved thermal stability while processing, and chemical inertness;for example, to ozonated fluids.
PFA 445HP is a premium resin with the lowest level of extractables designed to meet ultra-high purity requirements.It has a medium-range melt flow rate (typical MFR of 5),and the highest level of inertness due to stable end group polymer structure. The enhanced purity of PFA 445HP makes it suitable for applications that require improved color, lower extractable fluorides,and freedom from other foreign materials.
This product contains no additives and is designed for hostile chemical environments where purity in the parts-per-billion range is needed. Examples are in semiconductor manufacture, fluid handling systems for industry or life sciences, and instrumentation for precise measurements of fluid systems. Compared to other thermoplastics, the high melt strength and thermal stability of PFA 445HP can be used to improve processing rates, combining the processing ease of conventional thermoplastics with many properties similar to those of polytetrafluoroethylene.
Typical Applications
Applications for PFA 445HP include tubing, unsupported pipe linings for the production of ultra-pure chemicals, semiconductor components, and fluid handling components for high-performance chemical delivery systems where purity in the parts-per-billion range is needed.
Processing
PFA 445HP can be processed by conventional melt extrusion, and by injection, compression, and transfer molding processes. High melt strength and heat stability permit the use of relatively large die openings and high temperature draw-down techniques that increase production rates. Reciprocating screw injection molding machines are preferred. Corrosion-resistant metals should be used in contact with molten fluoroplastic resin. Extruder barrel should be long, relative to diameter, to provide residence time for heating the resin to approximately 390 °C (730 °F). For more detailed processing information, including recommended draw-down ratios, consult your Chemours representative.
Food Contact Compliance
Properly processed products made from PFA 445HP resin can qualify for use in contact with food.
Storage and Handling
Special product isolation and packaging procedures are used by Chemours to eliminate external contamination of PFA 445HP resin. Processors also must avoid contamination for successful production of high purity products. The properties of PFA 445HP resin are not affected by storage time. Ambient storage conditions should be designed to avoid airborne contamination and water condensation on the resin when it is removed from containers.
Packaging
PFA 445HP is supplied as pellets and is available in 25-kg multilayer bags with an integral polyethylene liner.
We can give discount according to order quantity.
We also have good experience in transportation both by air and ocean to overseas.
Suppliers with verified business licenses
Audited Supplier 
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