铁氟龙, 氟橡胶, 铁氟龙FEP, PVDF法国阿科玛9000HD, ETFE日本旭硝子C-88AX, PFA美国杜邦340, PA66/F/PTFE美国液氮RFL-403, PA66/PTFE美国液氮RL-4040, POM/PTFE基础创新塑料KL004
铁氟龙, 氟橡胶, 铁氟龙FEP, PVDF法国阿科玛9000HD, ETFE日本旭硝子C-88AX, PFA美国杜邦340, PA66/F/PTFE美国液氮RFL-403, PA66/PTFE美国液氮RL-4040, POM/PTFE基础创新塑料KL004
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| Teflon® PTFE 669 X | |||
| Polytetrafluoroethylene | |||
| Product Description: | |||
| DuPont ™ Teflon ® PTFE 669 X is a polytetrafluoroethylene fine powder resin used primarily for paste extrusion. Teflon ® PTFE 669 X offers the excellent combination of properties typical of the Teflon ® fluoropolymer resins: | |||
| non-aging characteristics; | |||
| chemical inertness to nearly all industrial chemicals and solvents; | |||
| exceptional dielectric properties, stable with frequency and temperature; | |||
| toughness and flexibility; | |||
| low coefficient of friction; | |||
| non-stick characteristics; | |||
| negligible moisture absorption; | |||
| excellent weather resistance; | |||
| service temperature up to 260°C (500°F); | |||
| useful properties at -240 °C (-400 °F); | |||
| moderate stiffness and high ultimate elongation. | |||
| Teflon ® PTFE 669 X is designed for processing at very low to medium reduction ratios (10:1 to 500:1). It is particularly suitable for production of pipe liners and general tubing. | |||
| Teflon ® PTFE 669 X meets the requirements of ASTM D4895-91a, Type I, Grade 2, Class A. | |||
| Typical Applications | |||
| Teflon ® PTFE 669 X is mainly used for the production of pipe liners used in the chemical industry. It is also used for making tubing and unsintered tape for mechanical, chemical and electrical applications. | |||
| General | |||
| Features | Food Contact Acceptable | Good Stiffness | Low Friction |
| Good Chemical Resistance | Good Toughness | Low Moisture Absorption | |
| Good Electrical Properties | Good Weather Resistance | Solvent Resistant | |
| Good Flexibility | High Elongation | ||
| Uses | Liners | Tape | Tubing |
| Agency Ratings | EU 10/2011 | FDA 21 CFR 177.1550 | |
| Forms | Powder | ||
| Processing Method | Extrusion | ||
| Physical | Nominal Value | Unit | Test Method |
| Specific Gravity | 2.17 | g/cm³ | ISO 12086, ASTM D4895 |
| Apparent Density | 0.52 | g/cm³ | ASTM D4895, ISO 12086 |
| Average Particle Size | |||
| -- | 450 | µm | ISO 12086 |
| -- | 450 | µm | ASTM D4895 |
| Thermal | Nominal Value | Unit | Test Method |
| Melting Temperature | ASTM D4895, ISO 12086 | ||
| -- 3 | 326 | °C | |
| -- 4 | 344 | °C | |
| Additional Information | Nominal Value | Unit | Test Method |
| Extrusion Pressure - at RR = 100:1 | |||
| -- | 7.5 | MPa | ISO 12086 |
| -- | 7.5 | MPa | ASTM D4895 |
