I can try to help you with the following composition

P(VDF-TrFE) COPOLYMER 75%/25%

Young’s modulus (MPa)

- machine direction, 950 ± 20%

- transverse direction, 1500 ± 20%

Tensile strength at break (MPa)

- machine direction, 90 ± 15%

- transverse direction, 30 ± 15%

εr about 9.4 ± 10%

tan δ about 0.014 ± 10% (0.1kHz - 10kHz)

hope this helps!

Thank you Salvatore.

But I already found enough information in text books for the P(VDF-TrFE)75/25 mol% .

However, It is still hard for me to find for the compositions i mentioned in my question.

I hope someone out there has the answer and to share me soon.

I appreciate your cooperation dear Salvatore !!

Thanks

Hi All,

I found the following Piezoelectric, dielectric, and elastic properties of PVDF and P(VDF–TrFE) 75/25mol% from Piezoelectric and Acoustic Materials for Transducer Applications text book, editted by Amad Safari E. Koray Akdogan.

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PVDF:

d31 (pC/N) =28, d32 (pC/N)= 4, d33 (pC/N)=-35

s11 (10E−10 Pa−1)= 3.65, s22 (10E−10 Pa−1)=4.24, s33 (10E−10 Pa−1)=4.72, s12(10E−10 Pa−1)= -1.1, s13 (10E−10 Pa−1)= -2.09, s23 (10E−10 Pa−1) = -1.92,

ε33/ε0 = 15,

k13 =0.13, kt = 0.144

P(VDF-TrFE)75/25, Real (Imaginary):

d31 (pC/N) =10.7(0.18), d32 (pC/N)= 10.1(0.19), d33 (pC/N)=-33.5(-0.65)

s11 (10E−10 Pa−1)= 3.32(0.1), s22 (10E−10 Pa−1)=3.24(0.07), s33 (10E−10 Pa−1)=3(0.07), s12(10E−10 Pa−1)= -1.44(-0.036), s13 (10E−10 Pa−1)= -0.89(-0.022), s23 (10E−10 Pa−1) = -0.86(-0.022),

ε33/ε0 = 7.9(0.09), 

k33 =0.23, K13=0.07, kt = 0.196

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However, I am still looking for the other compositions such as ;

P(VDF-TrFE)56/44 mol%

P(VDF-TrFE)68/32 mol%

P(VDF-HFP) 85/15 mol%

P(VDF-CTFE)88/12 mol% and

P(VDF–TrFE–CFE) 68/32/9 mol%

Thank You !

check our Researchgate publication or our website www.polyk-lab.com all kinds of PVDF homopolymer, copolymer, and terpolymers.