设计制备了导电 TiO 2材料,使用(NaPO 3)6对其进行表面活性处理,并与聚酰胺(PA)混合造粒,再经熔融纺丝制备了一种白色导电纤维。测试表明经处理的导电 TiO 2材料可以很好地分散于 PA 基体中且相容性良好,纺出的纤维具有良好的...设计制备了导电 TiO 2材料,使用(NaPO 3)6对其进行表面活性处理,并与聚酰胺(PA)混合造粒,再经熔融纺丝制备了一种白色导电纤维。测试表明经处理的导电 TiO 2材料可以很好地分散于 PA 基体中且相容性良好,纺出的纤维具有良好的导电性能。对其导电机理进行了研究,结果表明当导电 TiO 2含量<7%时属于隧道导电,含量为10%~13%时属于隧道导电和欧姆导电组合导电,含量>13%时以欧姆导电为主。展开更多
Poly[2-methoxy-5-(20-ethylhexyloxy)-io-phenylenevinylene] (MEH-PPV), [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) and titanium dioxide (TiO2) nanoparticles (n-type) were dissolved, mixed and deposited b...Poly[2-methoxy-5-(20-ethylhexyloxy)-io-phenylenevinylene] (MEH-PPV), [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) and titanium dioxide (TiO2) nanoparticles (n-type) were dissolved, mixed and deposited by physical methods (spin-coating) on indium tin-oxide (ITO) substrate. The incorporation of the titanium dioxide nanoparticles changed the morphology and increased the roughness of polymers film (MEH-PPV/PCBM), and the photocurrent density of the composite (MEH-PPV/PCBM +n-TiO2) was higher than that of single MEH- PPV/PCBM film. The study showed that the presence of n-TiO2 particles in the polymeric film improves the photoelectrochemical properties of M EH-PPV/PCBM composite.展开更多
文摘设计制备了导电 TiO 2材料,使用(NaPO 3)6对其进行表面活性处理,并与聚酰胺(PA)混合造粒,再经熔融纺丝制备了一种白色导电纤维。测试表明经处理的导电 TiO 2材料可以很好地分散于 PA 基体中且相容性良好,纺出的纤维具有良好的导电性能。对其导电机理进行了研究,结果表明当导电 TiO 2含量<7%时属于隧道导电,含量为10%~13%时属于隧道导电和欧姆导电组合导电,含量>13%时以欧姆导电为主。
文摘Poly[2-methoxy-5-(20-ethylhexyloxy)-io-phenylenevinylene] (MEH-PPV), [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) and titanium dioxide (TiO2) nanoparticles (n-type) were dissolved, mixed and deposited by physical methods (spin-coating) on indium tin-oxide (ITO) substrate. The incorporation of the titanium dioxide nanoparticles changed the morphology and increased the roughness of polymers film (MEH-PPV/PCBM), and the photocurrent density of the composite (MEH-PPV/PCBM +n-TiO2) was higher than that of single MEH- PPV/PCBM film. The study showed that the presence of n-TiO2 particles in the polymeric film improves the photoelectrochemical properties of M EH-PPV/PCBM composite.