PTFE - Polyterafluoroethylene
- PTFE is in great demand, making it represntative of fluorocarbon polymer due to the strong chemical bonding energy of the fluorone atom.
● General
- The basic properties of PTFE are due to the chemical structure of the polymer, which is composed of a double carbon and fluorine bond. The size of the fluorine atoms allows the formation of a uniform and continuous sheath around the carbon-carbon bonds and protects them from external attack, thereby providing the molecule with chemical resistance and stability. PTFE have superior thermal stability and chemical resistance properties. PTFE belong to the thermoplastics group but has an unusually hing melt viscosity. It can’t be modede using the same method as those for regular thermoplastics. Various molding methods have been developed based on the powder cohesion method in which polymer powder is compressed once and then beated beyond the melting point. Various types of PTFE are available to suit the various properies required in molded goods, and also to correspond to various molding methods.
● Features
The major properties of PTFE deliver quantifiable and valued benefits, which originate from its chemical structure.
▶ High melting point
▶ High thermal stability
▶ Wide range of temperatures (–200° C to +260°C)
▶ Insolubility
▶ Low dynamic coefficient of friction
▶ Low dielectric constant/dissipation factor
▶ Low absorption coefficient
▶ Excellent weatherability
▶ Flame-retardant properties
▶ Purity
▶ Excellent non-stick properties
▶ Biological inertness
▶ Suited for use in some cryogenic applications
▶ Excellent chemical resistance
▶ Excellent insulating properties
● Competitiveness
▶ Service temperature : working conditions from -100℃ (-148℉) up to 250℃(482℉), performance down to -200℃(-328℉)
▶ Chemical resistance : Offer high inertness towards nearly all know chemicals.
▶ Solvents resistance : Offer insoluble properties in all solvents up to high as 300℃(572℉)
● Available supplying
▶ NFF (Non Free Flow) Powder
▶ FF (Free Flow) Powder
▶ FF Compound Powder (with Glass, Carbon, Carbon Fiber, MoS2, Bronze or PPS)
▶ Micro Powder
● Application
▶ This makes PTFE ideal for use in many high-end application in industries such as Chemical, Electrical and Electronic, Petrochemical, Automotive, Mechanical, Medical, Aerospace, Semiconductors and Food.
● Company Quality System
▶ IIP, CISQ, IQNET, ACCREDIA