Oil Refining & Transportation
In the oil industry, process vessels, tanks and seals are often subjected to high temperatures, extreme pressures, and corrosive chemicals. Failure of components can be expensive in both time and money. Plastics are available which can maintain their properties and withstand the severe conditions.
The paragraphs below describe specific materials and their uses in this industry . . .
- Celazole® PBI (PolyBenzImidazole)
Celazole® offers excellent dimensional stability and strength at the highest sustained temperatures of any plastics -- up to 750°F, with excursions possible up to 1000°F.
- DuPont Vespel® (Polyimide)
DuPont Vespel® polyimide material provides a unique combination of strength, toughness, wear resistance, chemical stability at temperatures up to 550°F. It can be used for insulators, spacers, and other electrical components that must stand up to extreme temperatures.
- DuPont Kapton® (Polyimide Film)
DuPont Kapton® polyimide film is a high performance polymer which combines excellent physical, electrical, and mechanical properties at temperatures as low as -452°F (-269°C) and as high as +752°F (+400°C). It is typically orange and transparent in appearance. DuPont Kapton® offers excellent dimensional stability combined with excellent chemical resistance -- there are no known solvents. It is typically used for wire and cable tapes, formed coil insulation, flexible printed circuit board substrates, and magnet wire, transformer and capacitor insulation.
- Duratron® XP (Polyamide)
Duratron® XP offers dimensional stability, chemical resistance, and retains its strength at temperatures of up to 550°F. Duratron® XP is a slightly lower cost replacement for Vespel® polyimide.
- Torlon® PAI (PolyAmide-Imide)
Torlon® has high dielectric properties and low thermal expansion, and is much less expensive than some advanced polymers. It is also available in glass and carbon-filled versions to enhance its already excellent characteristics. Because of its wide temperature range and dimensional stability, Torlon® is ideal for connector bodies, insulators, spacers and other high-temperature electrical parts.
- Ultem® PEI (PolyEtherImide)
Ultem® has good dielectric properties and low thermal expansion, and is considerably less expensive than some other polymers. Its 30% glass-filled version, Ultem® 2300, has a excellent dimensional stability and a wide operating temperature range. Ultem® 2300 is an excellent choice for for insulators, spacers, connectors, and structural parts.
- PEEK (PolyEtherEtherKetone)
PEEK offers exceptional chemical resistance combined with heat resistance to 480°F. It does not degrade with exposure to water or steam, and is flame- and radiation-resistant. Glass and carbon-fiber reinforced grades are also available for improved dimensional stability, stiffness, compressive strength, and heat dissipation. Because of these properties, PEEK can withstand the chemical and mechanical stresses present during downhole operations. Connector bodies, insulators and spacers may be manufactured from PEEK. This material is available in sheet, rod and tube forms. NOTE: Boedeker Plastics now carries Virgin PEEK 450G Tube Stock.
- Ryton® PPS (PolyPhenylene Sulfide)
Bearing grade Ryton® PPS offers exceptional chemical resistance combined with heat resistance to 425°F. It does not degrade with exposure to water or steam, nor to hydrocarbon or other organic compounds. Many different bearing grades of Ryton® are available which are filled with solid lubricants for lower friction and higher wear resistance. Glass and carbon-fiber reinforced grades are also available for improved dimensional stability, stiffness, compressive strength, and heat dissipation. Ryton® PPS materials are suitable for bearing, thrust, and wear surfaces and structural components.
- G-10 and G-11 Glass-Epoxy Industrial Laminates
NEMA G-10 and G-11 glass-epoxy laminates are specified for their extremely high strength and high dimensional stability over temperature. G-10 is slightly stronger while G-11 is a better insulator and can take higher temperatures. These materials they are frequently used for insulators, spacers and structural parts which must stand vibration, shock, and high temperatures.
- Kynar® PVDF (PolyVinyliDene Fluoride)
PVDF is ultrapure, resistant to most chemicals, mechanically tough and abrasion resistant. Flame retardant grades are available. Parts made from PVDF are used in chemical handling systems and water purification systems. In addition, PVDF fabric-backed sheet is ideal for lining chemical tanks and trailers, including those used in high purity DI water or chemical storage & delivery systems.
- Halar® ECTFE (Ethylene-ChloroTriFluoro-Ethylene)
Parts made from ECTFE are resistant to strong alkalines, acids, and temperatures up to 300°F. It is also microsmooth and resists both bacterial adhesion and particulate generation. Flame retardant grades are available. ECTFE may be welded, bonded, machined and thermoformed for use in chemical handling systems.
- PTFE (PolyTetraFluoroEthylene)
PTFE offers high chemical resistance, resistance to most chemicals (including strong acids and bases), low friction, electrical and thermal insulation, and "slipperiness". It's useful temperature range is very wide; from -100°F to +400°F (-73°C to 204°C). Unfilled PTFE lacks mechanical strength in some configurations, so it is typically used for seals, gaskets, fittings, and non-loaded parts. A wide variety of filled grades are also available which offer improved or enhanced mechanical properties while maintaining many of PTFE's advantages.
- Tefzel® ETFE (Ethylene-TetraFluoro-Ethylene)
ETFE is free of fillers, lubricants or plasticizers and will not leach or contaminate. It is virtually unaffected by most chemicals, and has a continuous-use temperature range of -148°F to +311°F (-100°C to 155°C). ETFE is extremely durable with nylon-like abrasion characteristics. This material may be welded using special materials and conditions for use in chemical applications where the above properties are critical.
- Ertalyte® PET-P (Polyethylene Terephthalate)
Ertalyte® offers the dimensional stability of acetal with the wear resistance of nylon. Because of its excellent resistance to water and a broad range of pH (2.0 to 9.0), Ertalyte® can be used in wet environments without staining or weakening its mechanical properties.