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以硝酸锌(Zn(NO_3)_2)、硝酸铝(Al(NO_3)_3)为原料,通过水热合成法在二氧化钛(TiO_2)晶须表面包覆掺铝氧化锌(AZO)导电膜层,制备导电二氧化钛晶须(AZO@TiO_2)。将AZO@TiO_2添加到聚丙烯腈(PAN)纺丝液中,经湿法纺丝制得PAN/AZO@TiO_2复合导电纤维。分别采用扫描电子显微镜、X射线衍射仪、热重分析仪、Electrometer电阻测试仪和万能拉伸试验机分剐对复合导电纤维的结构性能进行表征,结果表明:当AZO@TiO_2掺杂量为30%时,PAN/AZO@TiO_2复合导电纤维电阻值达到15.7 MΩ,拉伸强度最大达到5.5 MPa,断裂伸长率最大为19.7%。
Zinc nitrate (Zn (NO_3) _2) and aluminum nitrate (Al (NO_3) _3) were used as the raw materials to coat the surface of titanium dioxide (TiO_2) whiskers with aluminum doped zinc oxide (AZO) Conductive titanium dioxide whiskers (AZO @ TiO_2). AZO @ TiO_2 was added into polyacrylonitrile (PAN) spinning solution to obtain PAN / AZO @ TiO_2 composite conductive fibers by wet spinning. The structural properties of the composite conductive fibers were characterized by scanning electron microscopy, X-ray diffraction, thermogravimetric analysis, Electrometer resistance tester and universal tensile testing machine. The results show that when the AZO @ TiO 2 doping amount is 30 %, The electrical resistance of PAN / AZO @ TiO_2 composite conductive fiber reached 15.7 MΩ, the tensile strength reached 5.5 MPa and the maximum elongation at break reached 19.7%.