Perfluoroelastomer(FFKM)
Perfluoroelastomer (FFKM) is synthesized by the copolymerization of tetrafluoroethylene monomer (TFE,CF₂=CF₂), perfluoro-methyl vinyl ether (PMVE,CF₃OCF=CF₂) and cure-site monomer (CSM,Rf-X).
The molecular structural formula is:
Perfluoroelastomer (FFKM) has the following properties compared to other elastomers (rubber):
· High temperature resistance
· Chemical solvent resistance
· Low permeability
· Plasma etch resistance
· Reliability and long service life
The specifications, types, characteristics and temperature resistance range of Yonghong perfluoroelastomers:
| Grades | Purpose | Feature | Min T(°C） | Max T(°C） |
| PFR-1000-R | General purpose | Outstanding chemical resistance | -10 | 230 |
| PFR-1100-R | Harsh chemical resistant | Outstanding chemical resistance to amines at high temperature | -10 | 230 |
| PFR-2000-R | Very high Temp | Extreme high temperature resistance | -10 | 315 |
| PFR-2100-R | Extreme high Temp | Extreme high temperature resistance | -10 | 350 |
| PFR-2600-R | High Temp | With organic filler | -10 | 300 |
| PFR-3000-R | High Temp | Excellent thermal and steam resistant grade | -10 | 290 |
| PFR-3600-R | High Temp | With organic filler | -10 | 270 |
Applications and characteristics of Yonghong perfluoroelastomers:
| Products and applications | Semicon | Flat Panel Display | Chemical industry | Petroleum Oil and natural gases | Pharma | Aerospace |
| PFR-1000-R | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| PFR-1100-R | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| PFR-2000-R | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| PFR-2100-R | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| PFR-2600-R | ✔ | ✔ | ✔ | ✔ | ||
| PFR-3000-R | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| PFR-3600-R | ✔ | ✔ | ✔ | ✔ | ✔ | |
| Application Features |
High purity chemica resistance, high temp resistance |
Resistant to chemicals and temperatures |
Resistant to chemicals and temperatures |
Resistant to chemicals and temperatures |
High purity, chemical resistance high temp resistance |
Resistant to chemicals and high temperatures |