Application of PFA in the medical field

Whether it's chemical, biopharmaceutical, or traditional Chinese medicine manufacturing, great importance is attached to ensuring the purity of materials. The medical and pharmaceutical manufacturing process is usually affected by biological and chemical components. PFA materials can also provide excellent chemical stability in very harsh environments due to their wide temperature range, making them an ideal choice for many high clean and high-purity applications, and are widely used in the medical and pharmaceutical industries.

In response to the high requirements for fluid delivery products in the pharmaceutical industry, pharmaceutical grade hoses made of PFA materials can be used for liquid transmission and filling in pharmaceutical and biotechnology manufacturing processes, as well as for transporting blood, urine, or any other liquids that may coagulate or suspend in the medical sector, as well as any media containing powder or corrosive drugs. It is tear resistant and does not decompose any odors and odors. Its outstanding non stickiness prevents the inner wall of the tube from adhering to colloids and chemicals, and does not form a dirt layer inside the tube.

PFA is also found in some medical devices. PFA digestion tubes and cups used in medical disease control testing are mainly applicable to the digestion of samples before chemical analysis of blood samples, urine samples, dairy products, etc. PFA digestion tube and graphite digestion instrument are currently one of the direct and effective sample pretreatment methods for elemental analysis.

PFA measuring cylinders are mainly used in biomedicine, pharmaceutical research and development, and trace analysis due to their low dissolution and precipitation. PFA folding filter element is used for sterilization and filtration of highly corrosive and oxidizing liquids, and is used in high-end pharmaceutical, chemical, and microelectronic industries.

PFA spoons are commonly used when retrieving drugs in the laboratory. PFA tweezers are used to clip blocky drugs, metal particles, etc. under harsh conditions.

PFA is a copolymer of a small amount of perfluoropropyl perfluoroethylene ether and polytetrafluoroethylene. In 1972, DuPont Company of the United States developed PFA, which is also known as fusible polytetrafluoroethylene because its performance is similar to that of polytetrafluoroethylene and can be processed using thermoplastic resin processing methods.

Compared to polytetrafluoroethylene (PTFE), PFA adds perfluoroalkoxy, which is equivalent to one fluorine atom in PTFE being replaced by perfluoroalkoxy. In terms of molecular structure, the carbon chain of PFA is relatively short, and the degree of chain entanglement is higher. The long-term use temperature is - 80-200 degrees. PFA has good dielectric properties, excellent radiation resistance, and excellent chemical corrosion resistance.

The metal ion content of PFA tubes is very low (especially for tubes made of high-purity PFA), and their chemical purity conforms to all the guidelines of the Food and Drug Administration (FDA) regarding safety and direct contact with food.

Medical devices made of PFA have a translucent appearance and many excellent properties, such as high and low temperature resistance, corrosion resistance, insulation resistance, pollution resistance, etc., making them an ideal choice for storing standard materials and highly corrosive substances. In harsh environments, it can also ensure good corrosion resistance and adapt to harsh mechanical and chemical applications, medical fluid delivery, gas and compressed air delivery, and applications requiring strict cleaning.