γ-Al_2O_3柔性纳米纤维膜的制备及机械性能（英文）

Fabrication and Mechanical Properties of Flexible γ-Al_2O_3 Nanofibrous Membranes

以氯化铝和异丙醇铝为原料,水和乙醇为溶剂,通过溶胶凝胶结合静电纺丝法制备了柔性γ-Al_2O_3纳米纤维膜.表征了纤维膜的形貌和机械性质,并研究了纤维膜的形成过程.组成纤维膜的纤维直径均匀,平均直径188 nm,纤维由粒径在15~30 nm的纳米颗粒组成且表面光滑.制备的纤维膜具有较好的柔性及抗拉强度(1.01 MPa).

Flexible γ-Al2O3 nanofibrous membranes were prepared by sol-gel combined electrospinning technique using aluminum chloride and aluminum isopropoxide as raw materials, water and ethanol as the solvents. The morphology and mechanical property of the membranes were characterized and the formation process was tracked. The membranes were composed of uniform nanofibers with a mean diameter of ca. 188 nm. The fibers＇ surfaces were smooth and the fibers were composed of nanopartieles with a size range of 15-30 nm. The prepared membranes exhibited excellent flexibility and tensile strength（ 1.01 MPa）.