塑胶原料 > 行业新闻 > 今日新到产品

Teflon® PTFE 669 X

Teflon® PTFE 669 X

2018-09-10 09:08:33

  

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
       

点击这里给我发消息 点击这里给我发消息