静电纺制备ATO聚集状态可控的柔性导电材料及其性能研究

Synthesis and Properties of Flexible Conductive Materials with a Controllable State of ATO Aggregation via Electrospinning

采用溶剂热法制备氧化锡锑颗粒并使用硅烷偶联剂进行表面改性,然后通过静电纺丝形成导电网络。将其与有机树脂复合,制备得到复合柔性导电材料。采用XRD、FTIR、FE-SEM、TG、低阻抗分析仪、紫外可见分光光度计等测试方法对材料进行表征,结果表明经表面改性后,氧化锡锑颗粒的分散性及沉降稳定性得到明显改善,用于静电纺丝效果良好。在外力弯曲状态下,复合材料的电学性能保持稳定,电导率可达～2.6 S/m,在紫外-可见光区域具有相对较高的光透过性。

Antimony-doped SnO2 particles were synthesized by the solvothermal route and silanized with silane coupling agents. The conductive network was prepared by electrospinning a mixture of modified antimony-doped SnO2 and polyvinylpyrrolidone. The flexible composite consisted of a conductive network and a resin substrate was prepared subsequently. The obtained materials were characterized by XRD, FT- IR, FE-SEM, TG, low-impedance instrument and UV-vis spectrophotometer. The results indicated that the dispersity and sedimentation stability of the antimony-doped SnO2 particles were improved after silanization. The composite showed a very high electrical conductivity of - 2.6 S · m1, which exhibited superior electrical/mechanical performance when bent or twisted and relatively high optical transmittance in the visible and ultraviolet reasons.