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采用水热法,以乙二醇(EG)作为还原剂和溶剂制备银纳米线,在硝酸银(Ag NO3)与聚乙烯吡咯烷酮(PVP–K30)摩尔比为1:2时,加入1.0 mg/m L的氯化钠(Na Cl),在160℃的高压反应釜中反应7 h,经用去离子水洗涤静置,得到直径为100 nm左右、长度30~50μm的银纳米线。将得到的银纳米线用无水乙醇配制成1.0 mg/m L的分散液,在1 000 r/min下旋涂制备成膜,然后再以4 000 r/min速率旋涂浓度为21 mg/m L的聚甲基丙烯酸甲酯(PMMA)的1-甲基-2-吡咯烷酮溶液,可制备成具有良好附着性能、透明率为92.90%、方块电阻为12(?/□)的透明膜。
The silver nanowires were prepared by hydrothermal method with ethylene glycol (EG) as reducing agent and solvent. When the molar ratio of silver nitrate (AgNO3) to polyvinylpyrrolidone (PVP-K30) was 1: 2, 1.0 mg / m L sodium chloride (Na Cl) were reacted in an autoclave at 160 ° C for 7 h, washed with deionized water and allowed to stand to obtain a silver nanowire of about 100 nm in diameter and 30 to 50 μm in length. The obtained silver nanowires with anhydrous ethanol formulated into a 1.0 mg / mL dispersion, spin coating at 1000 r / min to prepare a film, and then spin coating at a rate of 4 000 r / min 21 mg / m L of a solution of polymethylmethacrylate (PMMA) in 1-methyl-2-pyrrolidone to prepare a transparent film having good adhesion, a transparency of 92.90% and a sheet resistance of 12 (? / □).