| 초록 |
The preparation of humidity sensor composed of carbon nanotubes(CNTs) and polymer mixture that was prepared from poly(acrylic acid)(PAA) and poly(vinyl alcohol)(PVA) is presented. Carbon nanotubes(CNTs) themselves have remarkable mechanical, thermal, and electrical properties, which enable a number of potential applications. PAA and PVA, which are called 'Super Absorbent Polymer(SAP)' are polymeric networks which can absorb a large amount of solvent in the aqueous medium and swell without being dissolved. In addition, crosslinking network by ester linkage can be formed between the carboxyl group of PAA and the hydroxyl group of PVA. In this study, hydrogel sensor based on CNT/PAA/PVA blend was prepared through different content of PVA as a crosslinking reagent and sensing characteristics of sensors such as response, sensitivity and linearity were investigated. |
