High-Temperature Chemical-Resistant PTFE Hexagonal Nuts

Polytetrafluoroethylene (Polytetrafluoroethylene, abbreviated as PTFE), alias Teflon, commonly known as the "plastic king," is a tetrafluoroethylene as a monomer polymerization of polymers; the chemical formula is (C2F4)n, heat, and cold resistance is excellent, can be used for an extended period in the -180 ~ 260ºC. It has excellent heat and cold resistance and can be used for a long time from -180 to 260ºC. High-Temperature Chemical-Resistant PTFE Hex Nuts is characterized by resistance to acids, alkalis, and various organic solvents and is almost insoluble in all solvents. At the same time, PTFE is characterized by high-temperature resistance, and its coefficient of friction is extremely low so that it can be used for lubrication. It is also an ideal coating for the inner layer of easy-to-clean water pipes.

1. It is stable at room temperature and pressure, avoiding moisture, heat, and high temperature. There is no real melting point; it slowly decomposes above 450℃ and directly turns into gas. At 327℃, the mechanical strength suddenly disappears. It is insoluble in any solvent. In addition to reacting with molten alkali metals, it is not eroded by any substance, even if it is boiled in hydrofluoric acid, aqua regia fuming sulfuric acid, or sodium hydroxide; it does not show any change.

2. White, odorless, tasteless, non-toxic powder, commonly known as "Plastic King." It has excellent chemical stability, corrosion resistance, sealing, high lubrication and non-stickiness, electric insulation, and good anti-aging resistance: high-temperature resistance, using a working temperature of 250 ℃. Low-temperature resistance and good mechanical toughness at low temperatures, even if the temperature drops to -196 ℃, can also maintain the elongation of 5%. Corrosion resistance: most chemicals and solvents show inertia and resistance to strong acids, alkalis, water, and organic solvents. It has good weathering resistance and has the best aging life among plastics: high lubricity and the lowest coefficient of friction among solid materials. Non-adhesion, the lowest surface tension among solid materials, does not adhere to any substance. Non-toxic, physiologically inert, as artificial blood vessels and organs implanted in the body for a long time without adverse reactions.

PTFE applications industry solutions

1. Anti-corrosion: Due to its corrosion resistance, PTFE material has been widely used in petroleum, textile, and many other industries. This includes exhaust, steam, high school, low-pressure piping, valves, etc. Conventional materials can not be used in low temperatures, anti-sticking, and other relatively harsh environmental conditions, which are more reflective of PTFE's advantages.

2. Electrical and electronic: PTFE has a relatively small dielectric constant, so it can be used to prepare enameled wire, which can be used in micro-motors. In addition, fluoroplastic film has a specific selective permeability to various gases, so this feature can be utilized to prepare oxygen sensors. Nowadays, many forms of PTFE materials play an essential role in electrical and electronic insulation. PTFE glass enameled cloth and glass cloth are used to produce high-temperature and high-frequency insulating materials, which can be used in satellite communications and computers, etc.; PTFE film is used to make capacitors, as an insulating layer between the instruments, gaskets, cables, etc.; PTFE thin-walled tubes of different calibers are used for lead-in wire casing, heat-shrinkable tube and Spiral tube, generator insulation water pipe, etc.

3. In medical treatment: PTFE's excellent biocompatibility, many people in recent years as a biological material for in-depth research; in recent years, domestic and foreign development of PTFE film used as artificial organs, such as artificial blood vessels, heart valves, etc., such as in the clinic as artificial blood vessels, rhinoplasty in the prosthesis stent material, have achieved good results.

4. In construction: by coating PTFE resin on ultrafine glass fiber fabric, PTFE membrane material is lightweight, high strength, fire-resistant, flame retardant, self-cleaning, unaffected by ultraviolet rays, fatigue, distortion-resistant, ageing-resistant, long service life, high light transmittance, and minimal heat absorption. Because of the invention of this cross-generation membrane material, the membrane structure building becomes a modernized permanent building.

5. Low friction performance in terms of load: because of its relatively low coefficient of friction compared to the vast majority of solid materials, filled PTFE gradually evolved into various types of parts High-Temperature Chemical-Resistant PTFE Hex Nuts oil-free lubrication of the excellent material fasteners. Its extensive use includes chemical equipment bearings, piston rings, steel structure roof support sliders, bridge transitions, etc.