Polytetrafluoroethylene resin

The product attacks glass slowly on standing, and a moderate increase in pressure takes place. The product can be stored for a period of several days in a polyethylene bottle, but it is best to prepare the material shortly before use. If prolonged storage is required, a stainless steel cylinder or a bottle fabricated from Teflon polytetrafluoroethylene resin is suggested. 

Fitzsimmons, V. G., and W. A. Zisman Thin films of polytetrafluoroethylene resin ("Teflon ) as lubricants and preservative coatings for metals. NRL Report 4753. Naval Research Laboratory, Washington, D. C., June 15, 1956. See also Ind. Eng. Chem. 50, 781-784 (1958). 

Matsumae, K., M. Watanabe, A. Nishioka and T. Ichimiya Viscosity and elasticity of gamma-irradiated polytetrafluoroethylene resin above the melting point. J. Polymer Sci. 28, 653—655 (1958). 

Nishioka, A., K. Matsumae, M. Watanabe, M. Tajima and M. Owaki Effects of gamma radiation on some physical properties of polytetrafluoroethylene resin. J. Appl. Polymer Sci. 2, 114 — 119 (1959). 

FEP resin). A copolymer of tetrafluoroethyl-ene and hexafluoropropylene with properties similar to polytetrafluoroethylene resin. The repeating structure of the molecule is... 

Compounds, known as granular powders, are made with granular polytetrafluoroethylene resin. The choice and concentration of the filler depends on the desired properties of the final part. Glass fiber, bronze, steel, carbon, carbon fiber, and graphite are among the common filler materials. Up to 40% by volume of filler can be added to the resin without complete loss of physical properties. The impact of additives below 5% by volume of filler on the properties of compounds is insignificant. Above 40%, most physical properties of the compounds drop sharply. 

In this section, heat and temperature related or dependent properties of polytetrafluoroethylene resins are discussed. These include thermal stability, thermal expansion, thermal conductivity, and specific heat (heat capacity). These characteristics are important to both design and use of PTFE parts. 

Polytetrafluoroethylene resins are very stable at their normal use temperature range (<260°C). They exhibit a small degree of degradation at higher temperatures. The rate of decomposition is a function of the specific polymer, temperature, time at temperature, and, to some extent, on the pressure and nature of decomposition environment. In actual processing, degradation is tracked by indirect measurement of mo-... 

Polytetrafluoroethylene resins have very low thermal conductivity and are considered good insulators. The values of thermal conductivity are given in Table 3.37. 

Chem. Descrip. Polytetrafluoroethylene resin CAS 9002-84-0 EINECS/ELINCS 204-126-9 Uses Lubricant, antiwear agent in plastic and elastomeric parts and lubricants improves rub resist., slip, surf, smoothness, and gloss in inks and coatings... 

Chem. Descrip. Polytetrafluoroethylene resin CAS 9002-84-0 EINECS/ELINCS 204-126-9... 

CAS 9002-84-0 EINECS/ELINCS 204-126-9 Synonyms Poly (ethylene tetrafluoride) Polytef Polytetrafluoroethene Polytetrafluoroethylene resin PTFE (INCI) Tetrafluoroethene homopolymer Tetrafluoroethylene polymer Tetrafluoroethylene polymers Tetrafluoroethylene resin Classification Thermoplastic homopolymer Definition Polymer of tetrafluoroethylene Emprkal (CiF,),... 

Synonyms Poly (ethylene tetrafluoride) Polytef Polytetrafluoroethene Polytetrafluoroethylene resin PTFE (INCI)... 

Tetrafluoroethylene (TFE, perfluoroethylene) n. CF2=C 2 a colorless gas used as the monomer for polytetrafluoroethylene resins. Prepared by the thermal cracking at about 700° C of cholordifluoromethane, itself produced by reaction of hydrogen fluoride with chloroform. The production of polytetrafluoroethyelene and its co-polymer is carried out by free radical polymerization. 

Reinforced polytetrafluoroethylene resin which contains a highly inert inorganic silicate base filler. 

PTFE piping products lined with polytetrafluoroethylene resin. 

Regulatory FDA 21CFR 175.105,175.300 Canada DSL ManuWistn b. Acres Org. Aldrich Allchem Ind. Rochem Int l. Shamrock Tech. Sigma-Aidrich Chemie GmbH/Fluka Polytetrafluoroethylene resin. See Polytetrafluoroethylene Polythene. See Polyethylene... 

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