Algoflon® DF PTFE powders are currently used for the production of tubing (including shrinkable and spaghetti tubing), pressure hoses (i.e. flexible and convoluted hoses) and pipe-liners

Polytetrafluoroethylene - Wikipedia

Li, G. et al. Rheological properties and foam preparation of biodegradable poly(butylene succinate). J. Appl. Polym. Sci. 127, 3586–3594 (2013). This report forecasts revenue and volume growth at global, regional, and country levels and provides an analysis of the latest industry trends in each of the sub-segments from 2014 to 2025. For this study, Grand View Research has segmented the global Polytetrafluoroethylene (PTFE) market report based on product, application, and region:Fillers/additives are crucial for increasing the porosity of PTFE compounds and thus affect electrical properties – they decrease the dielectric strength while increasing the dielectric constant and dissipation factor. An animal study conducted in 1955 concluded that it is unlikely that these products would be generated in amounts significant to health at temperatures below 250°C (482°F). [33] Above those temperatures the degradation by-products can be lethal to birds, [62] and can cause flu-like symptoms in humans ( polymer fume fever), [63] although in humans those symptoms disappear within a day or two of being moved to fresh air. [64] GenX Frequently Asked Questions" (PDF). GenX Investigation. Raleigh, NC: North Carolina Department of Environmental Quality (NCDEQ). 15 February 2018. What is PET Plastic | PET Characteristics | PET Copolymers | How is PET Made | Advantages & Disadvantages PFOA persists indefinitely in the environment. [68] PFOA has been detected in the blood of many individuals of the general US population in the low and sub- parts per billion range, and levels are higher in chemical plant employees and surrounding subpopulations. PFOA and perfluorooctanesulfonic acid (PFOS) have been estimated to be in every American person’s blood stream in the parts per billion range, though those concentrations have decreased by 70% for PFOA and 84% for PFOS between 1999 and 2014, which coincides with the end of the production and phase out of PFOA and PFOS in the US. [69] [70] The general population has been exposed to PFOA through massive dumping of C8 waste into the ocean and near the Ohio River Valley. [71] [72] [73] PFOA has been detected in industrial waste, stain-resistant carpets, carpet cleaning liquids, house dust, microwave popcorn bags, water, food and PTFE cookware.

3M PTFE | 3M United Kingdom

White Lightning Clean Ride anyone?…. Clean your chain with a cloth, apply well before a ride and repeat….

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I bit the bullet and went for the expensive UK sourced PTFE. I didn’t trust the Chinese stuff, or the delivery right now and over the course of thousands of miles and hundreds of dunks into the gloop, it is not such bad value vs lube. Sorry, I wasn’t aware of the environmental cost – I think that might have made me think twice.

PTFE dry lubricant ultra fine powder (50g) Materialix 100% PTFE dry lubricant ultra fine powder (50g)

PTFE is one of the best-known and widely applied PFAS commonly described as persistent organic pollutants or "forever chemicals". Only since the start of the 21st century has the environmental impact and toxicity to human and mammalian life been studied in depth. For decades, DuPont used perfluorooctanoic acid (PFOA, or C8) during production of PTFE, later discontinuing its use due to ecotoxicological and health issues that led to legal actions. Dupont's spin-off Chemours today manufactures PTFE using an alternative chemical it calls GenX, another PFAS. While PTFE is stable at lower temperatures, it begins to deteriorate at temperatures of about 260°C (500°F), it decomposes above 350°C (662°F), and pyrolysis occurs at temperatures above 400°C (752°F). [61] The main decomposition products are fluorocarbon gases and a sublimate, including tetrafluoroethylene (TFE) and difluorocarbene radicals (RCF2). [61]

How PTFE Powder is Produced

Coefficient of Friction (COF) Testing of Plastics. MatWeb Material Property Data. Retrieved 1 January 2007.

PTFE Fine Powders - Daikin America PTFE Fine Powders - Daikin America

The major application of PTFE, consuming about 50% of production, [ citation needed] is for the insulation of wiring in aerospace and computer applications (e.g. hookup wire, coaxial cables). This application exploits the fact that PTFE has excellent dielectric properties, specifically low group velocity dispersion, [39] especially at high radio frequencies, [39] making it suitable for use as an excellent insulator in connector assemblies and cables, and in printed circuit boards used at microwave frequencies. Combined with its high melting temperature, this makes it the material of choice as a high-performance substitute for the weaker, higher dispersion and lower-melting-point polyethylene commonly used in low-cost applications. The mechanical property of PTFE is also impressive but interior to other engineering plastics at room temperature. The addition of fillers has been proven as a successful way to overcome that obstacle. In its normal temperature range, PTFE exhibits some beneficial mechanical properties. Those properties are also hindered by processing variables such as sintering temperature, preform pressure, cooling rate, etc. Polymer attributes like molar mass particle size and particle size distribution can negatively impact mechanical properties. Many bicycle lubricants and greases contain PTFE and are used on chains and other moving parts subjected to frictional forces (such as hub bearings). In industrial applications, owing to its low friction, PTFE is used for plain bearings, gears, slide plates, seals, gaskets, bushings, [40] and more applications with sliding action of parts, where it outperforms acetal and nylon. [41] Electrets [ edit ]

Algoflon® DF Applications

Newer manufacturing methods aim to mitigate these issues. PTFE’s unique properties make it indispensable in modern engineering and materials science. Lertwimolnun, W. & Vergnes, B. Influence of compatibilizer and processing conditions on the dispersion of nanoclay in a polypropylene matrix. Polymer 46, 3462–3471 (2005). It is very corrosive, used for etching stainless steel, titanium, or glass. You probably don’t want that anywhere near your chain either.