Preparation of Silver Nanowire-SBR Composite Conductive Materials Using a Cross-linkable Multifunctional Dispersant.
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초록
내용
In stretchable conductive device field, silver nanowire (AgNWs) based rubber composites in particularly have attracted lot of interests. However, the two major challenges associated AgNWs are its poor dispersibility in hydrophobic solvents and polymer matrix, and poor stability of the electrical conductivity of the composite materials under repeated stretching and releasing cycles. In this study, we report a multifunctional polymer to improve the dispersion of AgNWs and thereof the fabrication of styrene butadiene rubber (SBR) composites using the modified AgNWs. In the polymer dispersant, disulfide groups interact with AgNWs (Ag-S bond) while azide groups react with double bonds of SBR through formation of the nitrenes. The modified AgNWs could be dispersed at high concentrations in hydrophobic solvent and mixed easily with SBR and its composite has low electrical resistance.