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塑胶原料报价
PTFE 601A 聚四氟乙烯超细粉
  • 产 品:PTFE 601A 聚四氟乙烯超细粉
  • 产 地:Teflon 杜邦
  • 价 格:电话报价
  • 库 存:20吨
  • 交 货:江苏苏州
  • 苏州希普能:185 5121 3137 谭经理

DuPont™ Teflon® PTFE 601A
fluoropolymer resin
Fine Powder Lubricated Extrusion Resin

Brand
Teflon® is a registered trademark of DuPont for its brand of fluoropolymer resins, which can only be licensed by DuPont for use in approved applica-tions. Customers who wish to use the Teflon® trademark in connection with DuPont Fine Powder products under license from DuPont should contact (86) 13662986968. Without a license, customers may not identify their product as containing Teflon®, but may refer to the resin as PTFE 601A.

Description
DuPont™ Teflon® PTFE 601A is manufactured in North America. Teflon® PTFE 601A and Teflon® PTFE 601J are equivalent products manufactured in the Netherlands and Japan, respectively. All product specifications are identical for the different regions.

Teflon® PTFE 601A is a white powder composed of agglomerated particles of polytetrafluoroethylene (PTFE). It can be blended with solvent and ram extruded by a process called paste extrusion. The coherent extrudate obtains its structural integrity from the propensity of fine powder to fibrillate and form a fibrous matrix.

Table 1
Typical Property Data for DuPont™ Teflon® PTFE 601A Fluoropolymer Resin

Property ASTM
Test Method
Unit Nominal
Value
Average Particle Diameter D4895 µm 570
Standard Specific Gravity D618 - 2.15
Rheometer Pressure*  D4895 MPa(psi) 11.4(1,660)
Second Melt Point D1458 ℃(℉) 327 (621)
Typical properties are not suitable for specification purposes.
*Reduction Ratio 100:1

Teflon® PTFE 601A is DuPont's highest molecular weight fine powder resin and can be stretched significantly with no break. It can be extruded with excellent green stength even at low reduction ratios.

Properly processed products made from neat Teflon® PTFE 601A provide the superior properties typical of PTFE resins:
• retention of properties after service at 260°C (500°F)
• useful properties down to –240°C (–400°F)
• chemical inertness to nearly all chemicals and solvents
• low friction and antistick surfaces
• outstanding dielectric properties
Teflon® PTFE 601A is ASTM D4895, Type I, Grade I, Class A.

Processing
Teflon PTFE® 601A is prepared for extrusion by mixing with a liquid extrusion aid. The damp pow-der is compressed into a cylindrical preform slug and placed in the cylinder of a ram-type extruder. Under high pressure, the billet is forced through a finishing die with a large cross section selected for making beading or other special profiles.

Reduction ratio (RR) is the ratio of cross section of preform to that of extrudate; it is an extruder option also affecting the selection of resin grade.

Safety Precautions
WARNING!
VAPORS CAN BE LIBERATED THAT MAY BE HAZARDOUS IF INHALED.
Before using Teflon® PTFE 601A, read the Material Safety Data Sheet and the detailed information in the “Guide to the Safe Handling of Fluoropolymer Resins, Latest Edition," published by the Fluoro-polymers Division of The Society of the Plastics Industry—available from DuPont.

Open and use containers only in well-ventilated areas using local exhaust ventilation (LEV). Vapors and fumes liberated during hot processing, or from smoking tobacco or cigarettes contaminated with Teflon® PTFE 601A, may cause flu-like symptoms (chills, fever, sore throat) that may not occur until several hours after exposure and pass within about 24 hr. Vapors and fumes liberated during hot pro-cessing should be exhausted completely from the work area; contamination of tobacco with polymers should be avoided. Mixtures with some finely di-vided metals, such as magnesium or aluminum, can
be flammable or explosive under some conditions.

Flammable solvents mixed with Teflon® PTFE 601A can cause fires in ovens and mixing areas. Obtain manufacturers’ recommendations before using.

Storage and Handling
Fine powder can be shear damaged because of its propensity to fibrillate. Shear damaged resin will not process properly and may result in an infe-rior product. Fine powder can withstand signifi-cantly more abuse when it is in the below room temperature transition state. Teflon® PTFE 601A fluoropolymer resin will remain in this cold transi-tion state until it is warmed above 19°C (66°F). If this resin is allowed to go above 19°C (66°F) at any time, it must be cooled below about 10°C (50°F) to bring it back to the cold state. Consequently, it is preferable to transport and blend in the cold state.

To prevent moisture contamination, the drum must not be opened where the ambient dew point is above the temperature of the resin. Otherwise, immediate condensation on the resin will occur and proper processing may be severely affected.

Storage and handling (blender, etc.) facilities should be kept clean and dry. Fine powder resin will rapidly attract dust and airborne contamination. Particles of Teflon® left in processing equipment will easily shear damage, resulting in product de-fects. It is preferred that the resin be poured from one container to another. Scooping can cause se-vere shear damage.

Packaging
Teflon® PTFE 601A is packaged in 27.2-kg (60-lb) containers.

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