Polymer Science and Engineering Division, National Chemical Laboratory, Dr Homi Bhabha Road, Pune, India.
Nanoscale. 2012 Feb 7;4(3):752-6. doi: 10.1039/c2nr11841f. Epub 2012 Jan 11.
PVDF nanofibers are prepared using electrospinning. The effect of addition of a hydrated salt, nickel chloride hexahydrate (NiCl(2)·6H(2)O), on the phase formation is examined. Addition of the hydrated salt (NC) is found to enhance the polar β phase by about 30%. The peak to peak piezo-voltage generated for PVDF NC is almost 0.762 V, a factor of 3 higher than that for PVDF. The fiber mats exhibit a significantly enhanced dynamic strain sensor response. The voltage generated per unit micro-strain developed during the free vibration test for PVDF was 0.119 mV whereas it was 0.548 mV for PVDF NC, exhibiting a non-linearly enhanced performance vis a vis the increase in the β phase component.
聚偏氟乙烯纳米纤维是通过静电纺丝制备的。研究了添加水合盐六水合氯化镍（NiCl(2)·6H(2)O）对相形成的影响。添加水合盐（NC）被发现可将极性β相增强约 30%。对于 PVDF-NC，产生的峰值对峰值压电压几乎为 0.762 V，是 PVDF 的 3 倍。纤维垫表现出显著增强的动态应变传感器响应。在自由振动测试中，PVDF 每单位微应变产生的电压为 0.119 mV，而对于 PVDF-NC，电压为 0.548 mV，相对于β相成分的增加，表现出非线性增强的性能。
