Polytetrafluoroethylene Powder PTFE Powder CAS No 9002-84-0

It is used in the electrical industry, in the aerospace, aviation, electronics, instrumentation, computer and other industries.

Product Details

About Polytetrafluoroethylene Powder PTFE Powder:
Polytetrafluoroethylene (Poly tetrafluoroethylene, abbreviated as PTFE), commonly known as "Plastic King", is a high molecular polymer obtained by polymerizing tetrafluoroethylene as a monomer. White waxy, translucent, excellent heat and cold resistance, can be used for a long time at -180 ~ 260ºC. This material has the characteristics of acid and alkali resistance and resistance to various organic solvents, and is almost insoluble in all solvents. At the same time, polytetrafluoroethylene has the characteristics of high temperature resistance, and its friction coefficient is extremely low, so it can be used for lubrication, and it has also become an ideal coating for easy cleaning of the inner layer of water pipes.


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Product Performance of Polytetrafluoroethylene Powder PTFE Powder:

1. Stable under normal temperature and pressure, avoid humidity, heat and high temperature

There is no real melting point, and it decomposes slowly above 450 ° C and directly turns into a gas. At 327°C, the mechanical strength suddenly disappeared. Insoluble in any solvent. In addition to being able to react with molten alkali metals, it is not attacked by any substance, even if it is boiled in hydrofluoric acid, aqua regia or fuming sulfuric acid, sodium hydroxide, it will not change.


2. White, odorless, tasteless, non-toxic powder, commonly known as "Plastic King". Has excellent chemical stability, corrosion resistance, sealing, high lubricating non-stick properties, electrical insulation and good aging resistance. High temperature resistance, working temperature up to 250 ℃. Low temperature resistance, good mechanical toughness at low temperature, can maintain 5% elongation even if the temperature drops to -196 ℃. Corrosion resistant, inert to most chemicals and solvents, resistant to strong acids and alkalis, water and various organic solvents. Good weather resistance and the best aging life in plastics. High lubrication, the lowest coefficient of friction among solid materials. Non-adhesion is the smallest surface tension of solid materials, and does not adhere to any substances. Non-toxic, physiologically inert, long-term implantation into the body as artificial blood vessels and organs without adverse reactions


How is Polytetrafluoroethylene Powder PTFE Powder Produced?

1. Preparation of monomeric tetrafluoroethylene

In industry, chloroform is used as raw material, and chloroform is fluorinated with anhydrous hydrofluoric acid, the reaction temperature is above 65ºC, antimony pentachloride is used as catalyst, and finally tetrafluoroethylene is prepared by thermal cracking method. Tetrafluoroethylene can also be obtained by reacting zinc with tetrafluorodichloroethane at high temperature.


2. Preparation of PTFE

In enamel or stainless steel polymerization kettle, using water as medium, potassium persulfate as initiator, ammonium perfluorocarboxylate as dispersant, fluorocarbon as stabilizer, tetrafluoroethylene is prepared by redox polymerization. vinyl.


Add various additives into the reaction kettle, the tetrafluoroethylene monomer enters the polymerization kettle in the gas phase, adjust the temperature in the kettle to 25℃, then add a certain amount of activator (sodium metabisulfite), and initiate the polymerization through the redox system. During the polymerization process, the monomer was continuously added to maintain the polymerization pressure of 0.49-0.78MPa. The dispersion obtained after polymerization was diluted with water to a certain concentration, and the temperature was adjusted to 15-20ºC. After coagulation with mechanical stirring, washed with water and dried, namely This product is a fine granular resin.


Applications of Polytetrafluoroethylene Powder PTFE Powder :

1. It is used in the electrical industry, in the aerospace, aviation, electronics, instrumentation, computer and other industries as an insulating layer for power supply and signal lines, corrosion-resistant, wear-resistant materials can be made into films, tube sheet rods, bearings, gaskets, valves and Chemical pipelines, pipe fittings, equipment container linings, etc.


2. It is used in electrical appliances, chemical industry, aviation, machinery and other fields to replace quartz glassware for ultra-pure chemical analysis and storage in atomic energy, medicine, semiconductor and other industries. Various acids, alkalis and organic solvents can be made into high-insulation electrical parts, High-frequency wire and cable sheathing, corrosion-resistant chemical utensils, high-cold-resistant oil pipelines, artificial organs, etc. can be used as additives for plastics, rubber, coatings, inks, lubricating oils, greases, etc.


3. This product has high temperature resistance, corrosion resistance, excellent electrical insulation, aging resistance, low water absorption, and excellent self-lubricating performance. It is a general-purpose lubricating powder suitable for various media. It can be quickly applied to form a dry film , as a substitute for graphite, molybdenum and other inorganic lubricants. Mold release agent for thermoplastic and thermoset polymers with excellent load-carrying capacity. Widely used in the elastomer and rubber industries and in anticorrosion.


4. Used as a filler for epoxy resins to improve the wear resistance, heat resistance and corrosion resistance of epoxy adhesives.


5. Mainly used as a binder and filler for powder cakes.


Storage Condition of Polytetrafluoroethylene Powder PTFE Powder:

The damp reunion will affect Polytetrafluoroethylene Powder PTFE Powder dispersion performance and using effects, therefore, Polytetrafluoroethylene Powder PTFE Powder should be sealed in vacuum packing and stored in the cool and dry room, the Polytetrafluoroethylene Powder PTFE Powder can not be exposure to air. In addition, the Polytetrafluoroethylene Powder PTFE Powder should be avoided under stress.

Packing & Shipping of Polytetrafluoroethylene Powder PTFE Powder:
We have many different kinds of packing which depend on the Polytetrafluoroethylene Powder PTFE Powder quantity.
Polytetrafluoroethylene Powder PTFE Powder packing: vacuum packing, 1kg/bag, 25kg/barrel, or as your request.
Polytetrafluoroethylene Powder PTFE Powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.





 


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