Poly (4-styrenesulfonic acid) (PSSA) solution with Carbon nanofiber (CNF) were mixed in polyvinylidene fluoride (PVDF) polymer matrix to prepare series of PVDF/PSSA/CNF blend membrane. The results demonstrate improvement in the gauge factor and piezoresistive sensitivity, with increasing concentration of CNF, in presence of PSSA. The morphology of the composite membranes was examined by scanning electron microscopy. The phase shift from α to β was observed by the XRD patterns and DSC curves confirmed no change in the crystallinity of the membranes. The elasticity was observed to be increased in thin membranes of ∼0.2 mm thickness, with increase in PSSA content. The detailed investigation revealed that, the tuning of PSSA in carbon-based polymer composite achieved significant increase in gauge factor up to 5.07, attributed to good interfacial linking characteristic of PSSA. The developed CPNC membranes may find their applications in prosthetic limbs, biomedical instruments and other wearable devices as pressure sensors.

将具有碳纳米纤维（CNF）的聚（4-苯乙烯磺酸）（PSSA）溶液与聚偏二氟乙烯（PVDF）聚合物基质混合，以制备一系列PVDF / PSSA / CNF共混膜。结果表明，在存在PSSA的情况下，随着CNF浓度的增加，应变系数和压阻灵敏度得到了改善。通过扫描电子显微镜检查复合膜的形态。通过XRD图谱观察到从α到β的相移，DSC曲线证实膜的结晶度没有变化。随着PSSA含量的增加，在约0.2 mm厚度的薄膜中发现弹性增加。详尽的调查表明，对碳基聚合物复合材料中PSSA的调整使测量系数显着提高至5.07，归因于PSSA的良好界面连接特性。发达的CPNC膜可能会在假肢，生物医学仪器和其他可穿戴设备中用作压力传感器。