基于纳米银线导电织物的制备及性能研究

Preparation and property of conductive fabric based on silver nanowires

采用溶剂热法合成平均长度约为50μm,平均直径约为40nm的纳米银线。采用简单的浸渍法制备导电织物,即将织物浸泡在不同浓度的纳米银线无水乙醇分散液中,研究了纳米银线浓度、浸泡时间、干燥温度和时间以及洗涤对织物表面方阻的影响。结果表明:以纳米银线为导电材料,采用简单的浸渍法可以获得良好导电性的织物。织物浸泡在5mg/mL纳米银线分散液中8min的织物的方阻约为1.36Ω/sq,在7mg/mL和9mg/mL纳米银线溶液中浸泡3min的织物方阻分别达到0.95Ω/sq和0.36Ω/sq。随着干燥时间延长和干燥温度升高,导电织物的导电性明显增强;洗涤后导电织物的方阻下降,但经过3次洗涤依然具有良好的导电性。

Silver nanowires with an average length of 50μm and an average diameter of 40 nm were synthesized by solvothermal method.Conductive fabrics were prepared by simple immersion method,in which the fabrics were immersed in different concentrations of silver nanowires anhydrous ethanol solutions.The effects of the concentration of silver nanowires,immersion time,drying temperature and time,and washing on the surface sheet resistance of the fabrics were studied.The results shown that the excellent conductive fabric can be obtained by simple immersion method with silver nanowires as conductive material.The sheet resistances of the fabric immersed in 5 mg/mL silver nanowire solution for 8 min was about 1.36Ω/sq,and the sheet resistance of the fabric immersed in 7 mg/mL and9 mg/mL silver nanowires solution for 3 min reached 0.95Ω/sq and 0.36Ω/sq,respectively.With the drying time and temperature increasing,the conductivity of the fabric was obviously enhanced.After washing,the sheet resistance of the fabric decreased,but it still had good conductivity after 3 times of washing.