Product Description
PFA 440HPB X
Packing:25kg/bag
For inventory control purposes, product name may be followed by an X. Products labeled PFA 440HPB and PFA 440HPB X are equivalent, and all information in this document is applicable to both.
Description
PFA 440HPB is a special purpose fluoroplastic resin available in pellet form. This resin is a chemically modified form of PFA 340 that combines many of the benefits of the parent resin (a relatively high typical melt flow rate of 14) with several additional benefits including enhanced purity, improved thermal stability while processing, and chemical inertness; for example, to ozonated fluids.
Typical Applications
Applications for PFA 440HPB include fluid handling components for critical, high-purity processes, like semiconductor, pharmaceutical, and biotechnology, as well as applications where purity in the parts-per-billion range is needed. PFA 440HPB offers a slightly lower melt flow rate than PFA 440HPA, ultimately providing a higher degree of stresscrack resistance.
Processing
PFA 440HPB 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.
Storage and Handling
Special product isolation and packaging procedures are used to eliminate external contamination of PFA 440HPB resin. Processors also must avoid contamination for successful production of high purity products. The properties of PFA 440HPB 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.
We can give discount according to order quantity.
We also have good experience in transportation both by air and ocean to overseas.
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