A specially structured conductive nickel-deposited poly(ethylene terephthalate) nonwoven membrane intertwined with microbial pili-like poly(vinyl alcohol-co-ethylene) nanofibers and its application for alcohol sensor
作者：A specially structured conductive nickel-deposited poly(ethylene terephthalate) nonwoven membrane in
關(guān)鍵字：Flex conductive textile; nanofibrous membrane;
論文來源：期刊
發(fā)表時間：2014年
The trend in development of portable and wearable sensors in
healthcare-related applications promotes an expanding demand for flexible,
stretchable and electrically conductive fabrics. A novel structured conductive
nickel-deposited poly(ethylene terephthalate) (PET) membrane intertwined with
microbial pili-like poly(vinyl alcohol-co-ethylene) (PVA-co-PE) nanofibers has been
prepared. FTIR and XRD analysis indicated that the deposited metallic nickel was
semi-crystallized with a FCC structure. SEM observations showed that nickel was
compactly deposited on the surfaces of the nanofibers and PET substrate in
Ni@nanofibers/PET membranes. The coated nanofibers acted as conductive bridges
among the randomly entangled PET fibers, leading to a significant increase in the
conductivity of Ni@PVA-co-PE nanofibers/PET membranes. Abrasion tests
suggested that Ni@PVA-co-PE nanofibers/PET membranes have superior stability in
electrical conductivity compared to that of native Ni@PET membrane. The membrane
with high conductivity and good stability was employed as electrodes to construct a
capacitive alcohol sensor. The sensor demonstrated good sensitivity and high
efficiency