Introduction to the properties of PFA tube materials

PFA tubes can be made into tubes, but as a special material there are many other uses, especially for cold-resistant PFA, which in fact has the same application areas as PTFE, but can be moulded into more complex shapes than PTFE.

　　In addition to the well-known PFA tubes, PFA heating wires are also a typical example, where the conductor is a resistance wire, which is wound around the outside of the tube and heats up when energised.

　　Cold-resistant PFA is also widely used in the semiconductor industry, becoming one of the main materials for making silicon wafer bearers, pipes and their fittings, and semiconductor parts. With the development of high purity PFA, the application of PFA in high purity semiconductor piping, drug processing and ultra-pure water has also been expanding.

　　Although PFA has been used in China for a relatively long time, it is not yet fully popular due to its high price, high processing requirements and limited usage. However, as PFA maintains many of the advantages of PTFE and has the same hot melt fluidity and uses as FEP, PFA is better than FEP in terms of heat resistance and stress cracking resistance, especially at high temperatures where the strength is higher than PTFE.

　　Advances in PFA rotational moulding technology have expanded its use in the semiconductor industry, while in the chemical field, PFA is very common as a lining material in reactors, distillation towers, storage tanks and pipe fittings.

　　PFA can be made into straight pipes, pipe joints, bushings, spacers and pipe linings, thanks to the material's own set of superior properties. It is believed that with the metal of technology, the scope of application of PFA can also be broadened.

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