Nylon 11 films (δ′-form) were plasticized by immersion in 2-ethyl 1,3 hexanediol. Two different kinds of studies were performed. In the first study, poled nylon 11 films were plasticized by immersion in the plasticizer for different lengths of time. The piezoelectric strain constant,d 31, initially increased up to a plasticizer content of ∼ 14% (by weight) and then decreased. The values of piezoelectric stress constant,e 31, however, decreased with increase in dipping time. In the second study, the films were initially plasticized and then poled. Bothd 31 ande 31 were higher for plasticized films compared to unplasticized films under identical poling conditions. X-ray diffraction studies showed some conversion of δ′-phase to α′-phase during the process of plasticization.
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Mathur, S.C., Sent, A., Newman, B.A. et al. Effects of plasticization on the piezoelectric properties of nylon 11 films. J Mater Sci 23, 977–981 (1988). https://doi.org/10.1007/BF01153997
- Diffraction Study
- Poling Condition
- Piezoelectric Property