Mechanical, electromagnetic shielding and gas sensing properties of flexible cotton fiber/polyaniline composites
Source abstract
Abstract
Abstract Cotton fibers/polyaniline (PANI) composites were prepared by in situ polymerization acting as flexible sensors in order to avoid the waste brought by traditional sensing substrates. The uniform coating of PANI endowed the cotton strip loaded with PANI sensor (CSPS) and cotton yarn loaded with PANI sensor (CYPS) with good mechanical, electromagnetic shielding and gas sensing properties. Both CSPS and CYPS show high selectivity to NH3, high resistance to humidity and good repeatability between sensors. Compared with the strip shaped CSPS, quasi-one-dimensional CYPS shows higher sensitivity, faster response and recovery speed due to the higher surface exposure rate. The response of CYPS to 100 ppm NH3 increased from −32.1% of CSPS to −92.1%, and the recovery time was shortened from 30.1 s of CSPS to 20.1 s. In addition, quasi-one-dimensional CYPS also displayed the stability of sensing signals against mechanical bending from 0° to 60° and the change of effective sensing length. Importantly, the research has endowed cotton fibers with new diversified functions and expanded their application field.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Conducting polymers and applications · Advanced Sensor and Energy Harvesting Materials · Polydiacetylene-based materials and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (42)
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