What is PFA Tube?
PFA pipe is a kind of pipe made of perfluoroalkoxy resin, which has excellent chemical inertiness and high temperature resistance. It can maintain stability in extreme environments, high transparency, and good flexibility, suitable for the production of corrosion-resistant fluid transport pipes, wire and cable insulation, and chemical equipment components, etc., in the semiconductor, aerospace and pharmaceutical industries are widely used.
What is FEP tube?
FEP tubes are also made of fluoroplastic materials, the main component of which is fluorinated ethylene propylene copolymer. Triflure FEP tubes have excellent chemical resistance, non-viscosity and electrical insulation properties to maintain stable performance over a wide temperature range. It is commonly used in applications requiring high corrosion resistance and clean environments, such as transmission lines, laboratory equipment and wire and cable sheathing in the chemical industry.
How to distinguish PFA tube and FEP tube?
Distinguishing PFA tubes from FEP tubes is usually based on their physical characteristics and application performance:
Appearance and transparency: Although both have a certain amount of transparency, PFA tubes tend to be more transparent and visually clearer than FEP tubes.
Mechanical properties: Compared with FEP tubes, PFA tubes may be slightly better in hardness and wear resistance, showing better creep resistance.
Temperature resistance: the long-term use temperature upper limit of PFA tube is generally higher than that of FEP tube, and the melting point range of PFA tube is 295~310°C, while the melting point range of FEP tube is mostly between 250-270 °C.
Processing characteristics: PFA requires more stringent process conditions during the molding process, such as the need to control the mold temperature to reduce internal stress, and to avoid excessive molding temperature resulting in color changes or bubbles; The FEP tube also needs to pay attention to temperature control during processing, but its processing window is relatively broad.
Practical application test: the two can be further distinguished by tensile strength, elongation at break, solvent resistance and other tests.
Sanfulai, high-end fluorine plastic products manufacturer. Supplier of high purity PFA tubes for semiconductor factories.
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