Nano-zinc Oxide Preparation And Amine Ester Polymer Synthesis, Doping Nature Of The Study

In the paper, nano ZnO with about 25nm diameter has been prepared by the circumfluence reaction. The experiments were carried out in order to determine the optimum conditions such as reaction time and the type of dispersant. The results show that the best reaction time is 10h and the type of non-ionic dispersant is better. The UV adsorption behavior of the nano ZnO has also been studied.The alcohol and amine were used to synthesize a polymer with high glutinosity. The concentration of oxidant, time of solidification and the glutinosity of the viscoid have been determined as 0.6g/L, 3h and 2703mpa.s, respectively.The polymer was doped with nano ZnO by the means of co-mix treatment. The experiments of electrochemistry reveal that the conductivity of the polymer doped by ZnO is 435×10^-3S/m and the doped ratio, 12wt%. When the ratio is lower than it, the conductivity increases with the doped contents, while higher than 12wt%, in reverse, there occurs decrease. In order to improve the conductivity, SnCl₂ and SnO₂ were chosen to mix with nano ZnO, and the mixtures were doped into the polymer to form two types of co-doped ones. Their conductivity are 2.16×10^-2S/m, 6.25×10^-5S/m, respectively. A set of experiments of photoelectric effects for the doped polymers has been carried out. The results show the highest currents caused by light are 8.9mA, 13.6mA and 20.7mA, respectively, for three kinds of the different doped polymers that are with nano-ZnO individual, mixed with SnCl₂ as well as with SnO₂. The doped with ZnO mixed with SnO₂ among them is the best.