Relaxor-ferroelectric and High-k Terpolymers
Additional CTFE or CFE monomer units are introduced into the well-organized VDF-TrFE chains, which improve dipole mobility, and thus induce unique relaxor ferroelectric properties.
Piezotech® RT
P(VDF-TrFE-CTFE) or P(VDF-TrFE-CFE) are unique relaxor ferroelectric polymers that exhibit high electrostrictive strain and high dielectric constants.
- High deformation (directly proportional to the applied electric field squared, E²)
- High elastic energy
- High stress.
Piezotech® RT Terpolymer Powders
Piezotech® RT terpolymer powders are available with either CFE or CTFE as the termonomer.
Specific composition or molecular weight can be produced upon request.
|
Product Name |
Termonomer |
Typical termonomer |
Typical melting |
Typical relative dielectric |
|---|---|---|---|---|
|
Piezotech® RT-TS |
CTFE | Standard composition, please contact us | 122 | 40 |
|
Piezotech® RT-FS |
CFE |
Standard composition, please contact us |
127 |
55 |
Piezotech® RT Inks
Solvents and concentrations have been optimized to allow for the use of standard printing conditions. 3 standard formulations adapted for conventional techniques are available. Standard Piezotech® RT Inks are formulated with Piezotech® RT-TS polymer powder. Specific inks can be formulated upon request.
|
Grade |
Technology |
Viscosity (mPa.s at 32 °c) |
Thickness range (µm) |
Indicative dry content (wt%) |
|---|---|---|---|---|
|
Ink L |
Spin-coating Slot-die |
< 1000 | 0.1 - 2 | 7 |
|
Ink H |
Spin-coating Solvent-casting |
1500 - 3000 |
Spin-coat: 0.5 – 2 Solvent-cast: 2 - 80 |
20 |
|
Ink P |
Screen-printing | 15000 - 20000 | 1 - 10 | 17.5 |
Download our Technical Guide
The different technical guides support the use of the different Piezotech® products:
- Piezotech® FC
- Piezotech® RT
- Piezotech® FC Ink P
- Piezotech® PVDF Shock Gauges
- TDS Piezotech® FC Films
These documents summarize some typical properties, the general processing rules and advices and the integration into electrical devices and signal processing guidelines.