News

• 11

  AUG

  How to distinguish the pros and cons of PTFE molded board

  The quality of PTFE molded board mainly depends on its material and absorption film. The material is usually MDF, which is density board, and the environmental protection standard must reach E1 level. The best film is made in Germany, followed by South Korea, Taiwan, etc. As for the specific choice of where to produce it, it depends on your investment capital. Among them, the most expensive is Germany, while Taiwan is the cheapest. A cabinet made of PTFE molded board, the most important thing to choose is to look at the quality of the cabinet, the fineness of the workmanship, and whether the three-in-one connection is used. If the cabinet is directly assembled with screws, please consider carefully. As far as hardware accessories are concerned, ordinary configuration is good, the price is reasonable, and it is not suitable for rust. Polytetrafluoroethylene molded board: is usually the so-called suction board. It has always been the mainstream material for the door panels of European kitchen, bathroom, and bathroom furniture. Since 1997, domestic companies have begun to produce products and start using them. The material and use of PTFE molded board: Its material is usually selected high-quality medium density board, milled, sanded, and formed on the surface by the principle of vacuum absorption, and the PVC film is closely adhered to it. Door panels and decorative panel products have the advantages of good waterproof performance, environmental protection, diverse shapes and color textures. It is also a major feature of PTFE molded panels that are currently cost-effective and commonly used products in China. They can be retro or fashionable, and more avant-garde.

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• 04

  AUG

  Introducing polytetrafluoroethylene (PTFE)

  Polytetrafluoroethylene (Poly tetra fluoroethylene, abbreviated as PTFE), commonly known as "Plastic King", is a polymer prepared by polymerizing tetrafluoroethylene as a monomer. White waxy, translucent, excellent heat and cold resistance, and can be used for a long time at -180~260ºC. This material is resistant to acids, alkalis, and various organic solvents, and is almost insoluble in all solvents. At the same time, PTFE has the characteristics of high temperature resistance, its friction coefficient is very low, so it can be used as a lubricating effect, and it has also become an ideal coating for easy cleaning of the inner layer of water pipes; it is toxic and carcinogenic to the human body. According to the list of carcinogens of the International Agency for Research on Cancer of the World Health Organization, polytetrafluoroethylene is classified as three types of carcinogens, that is, it is not clear about its carcinogenic effects on humans. Property data editing 1. Properties: There are three types of granular, powder and dispersion. It is transparent when it is neutral, and the thickness increases to become off-white 2. Density (g/mL, 25ºC): 2.1~2.3 3. Relative vapor density (g/mL, air=1): not determined 4. Melting point (ºC): 327 5. Boiling point (ºC, normal pressure): 400 6. Boiling point (ºC, 5.2kPa): not determined 7. Refractive index: 1.37 (20ºC) 8. Solubility: insoluble in any solvent Nature and stabilityedit 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℃ and becomes a gas directly. At 327°C, the mechanical strength suddenly disappeared. Insoluble in any solvents. In addition to reacting with molten alkali metals, it is not corroded by any substance, even if it is boiled in hydrofluoric acid, aqua r

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• 06

  JUL

  PTFE and PTFE-BASED GASKETS

  Cong feng is the leading manufacturer of PTFE gaskets with excellent chemical resistance and very low leakage rate. PTFE gaskets are more resistant to corrosive environments than standard non-asbestos gaskets and are highly resistant to chemicals, solvents, caustics and acids in addition to alkali metals and fluorine. In addition, PTFE has low surface energy and is compliant with FDA regulations. Ptfe-based gaskets can withstand more severe chemical conditions (including high oxidation) than standard non-asbestos gaskets. However, their temperature, pressure and mechanical properties are not as good as those of standard non-asbestos gaskets. Metal inserted and expanded PTFE can operate at higher pressures. PTFE is primarily used as a gasket material because it is immune to most chemicals used in industry. In most cases, it is also classified as a food-grade material, allowing it to be used in both the medical and food production industries. PTFE gasket materials come in three basic types. Pure PTFE, filled PTFE and expanded PTFE. Pure PTFE is by far the cheapest of the three varieties and is used in most conventional applications. Filled PTFE is a gasket material with a pure PTFE substrate to which substances are added during the manufacturing process to improve the sealing performance of PTFE. Although ceramics are sometimes used, the "filler" is usually glass or graphite particles. The resulting gasket material is strong, but highly compressible and has excellent chemical resistance, although not universal. Expanded polytetrafluoroethylene (PTFE) is unprocessed polytetrafluoroethylene (PTFE), which has been added stress resistance through molecular rearrangement in the manufacturing process. This process ensures that the chains that make up PTFE do not arrange themselves in a fixed pattern. This means that the expanded PTFE has no structural defects (grains) and expands and contracts equall

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