FeCl_(3)/聚丙烯酸透明导电木材的制备及性能研究

Preparation and Properties of FeCl_(3)/Polyacrylic Acid Transparent Conductive Wood

以巴尔沙木为原料,脱除木质素后,浸渍丙烯酸溶液并固化得到透明木材,进一步浸渍FeCl_(3)溶液得到FeCl_(3)/聚丙烯酸透明导电木材。采用傅里叶红外光谱(FT-IR)、扫描电镜(SEM)等方法对材料进行表征,结果表明:透明木材在质量分数为0.75%的FeCl_(3)溶液中浸泡60~70 min时,其电导率(0.017 S/m)最佳;经0.5 mol/L FeCl_(3)溶液浸泡后的透明木材,其拉伸强度可达6.03 MPa,相比未浸泡的透明木材(0.55 MPa)提高了近10倍。透明木材对人体不同动作表现出特征性电学变化,具有电阻传感性能,在导电薄膜、人体传感器等领域有潜在的应用价值。

Using Balsa wood as raw material,lignin was removed,and the acrylic acid solution was impregnation and cured to get transparent wood.Subsequently,FeCl_(3) solution was further impregnated to form a flexible FeCl_(3)/polyacrylic acid transparent conductive wood.Fourier transform infrared spectroscopy(FT-IR)and scanning electron microscopy(SEM)were used to characterize these materials.The results showed that the transparent wood had the best conductivity when it was immersed in 0.75%FeCl_(3) solution for 60-70 min.The tensile strength of transparent wood soaked in 0.5 mol/L FeCl_(3) solution could reach 6.03 MPa,which was nearly 10 times higher than that of the unsoaked transparent wood(0.55 MPa).In addition,the resistance sensing performance of transparent wood was excellent,and it showed characteristic electrical changes correlated with the different human actions,which demonstrated the potential applications in conductive films,flexible human sensors and other fields.