Imported polytetrafluoroethylene turning plate, ptfe molded plate rod tube

Introduction to the product (polytetrafluoroethylene English name, brand name Fluoron, Teflon plastic king テフロン (Japanese), or Teflon is made of suspended polytetrafluoroethylene resin by molding and can be made into plates, turning films, pipes It is pressed and pushed into shape and mixed with graphite to form boards, rods, packings, ropes, and raw material tapes. It is called non-stick coating or easy-to-clean wok material. It is a kind of non-stick coating or easy-to-clean wok material. It uses fluorine to replace all the hydrogen atoms in polyethylene. Synthetic polymer material. This material is acid and alkali resistant, resistant 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 In addition to its lubrication effect, it has also become an ideal coating for easy-to-clean pans and the inner layer of water pipes. Two characteristics
The application temperature range is very wide (from ℃ to + ℃, the melting point can reach ℃ and the boiling point can reach ℃)
Basically resistant to all chemicals except some fluorides and alkaline metal liquids
Good mechanical properties including aging resistance, especially for bending and swing applications
Outstanding resistance Flammability (in compliance with and test procedures, regulated as a flame retardant material in air
Good insulating properties (regardless of frequency and temperature)
Very low water content, self-lubricating and non-sticky and a series of unique properties
Friction coefficient, wear resistance is very good
3. Advantages and Disadvantages
①Point
High temperature resistance, the working temperature can reach ℃.
Resistance It has good mechanical toughness at low temperatures and can maintain a high elongation even if the temperature drops to ℃.
Corrosion resistance It is inert to most chemicals and solvents and can withstand strong acids and alkalis, water and various organic solvents.
Weather resistance has the best aging life among plastics.
High lubrication is the lowest friction coefficient among solid materials.
Non-adhesion is the smallest surface tension among solid materials and does not adhere to anything. Substance.
It is non-toxic and physiologically inert. It can be used as artificial blood vessels and organs for long-term implantation in the body without adverse reactions.
The relative molecular weight of polytetrafluoroethylene is relatively large, ranging from hundreds of thousands to as high as More than 10 million, usually millions (the degree of polymerization is in the order of magnitude, while polyethylene is only in). The general crystallinity is ~, and the melting temperature is ~°C. The units in the polytetrafluoroethylene molecule are arranged in a zigzag shape, due to the fluorine atoms The radius is slightly larger than that of hydrogen, so adjacent units cannot be completely trans-cross-oriented, but form a spiral twisted chain, and fluorine atoms almost cover the surface of the entire polymer chain. This molecular structure explains the polytetrafluoro Various properties of ethylene. When the temperature is lower than ℃, a helix is formed and a phase change occurs at ℃, and the molecules are slightly unraveled to form a helix.
②Point
Tetrafluoroethylene has cold flow properties. That is, the material The plastic deformation (creep) of the product under long-term continuous load brings certain restrictions to its application. For example, when used as a sealing gasket, the bolts are tightened so that the specific compression is exceeded for tight sealing. When stressed, the gasket will produce cold flow (creep) and be crushed. These shortcomings can be overcome by adding appropriate fillers and improving the part structure.
It has outstanding non-stickiness, which limits its industrial application. It is an excellent anti-stick material, which makes it extremely difficult to bond to other surfaces.
The linear expansion coefficient is ~ times that of steel, which is larger than most plastics. Its linear expansion coefficient changes very irregularly with changes in temperature. When used in applications, if insufficient attention is paid to this aspect of performance, losses can easily occur.
4. Application fields: seals/gaskets, rings, wear-resistant plates/seats, insulation parts, anti-corrosion industries, mechanical parts, linings, oil and natural gas, petrochemical industry, chemical industry, instrumentation and equipment Manufacturer, etc.
Specifications and special sizes can be customized
Plate thickness*width/*length/, thickness width/*length/
Rod diameter and length
Color milky white, black, blue
Origin: United States, Germany