Method for surface in situ synthesis of conductive polyaniline PANi by using four acicular type zinc oxide crystal whisker T-ZnOw

Abstract

The invention discloses a method for T-ZnOw surface in-situ synthesizing conductive PANi. The method includes the steps: tetrapod zinc oxide whisker T-ZnOw is dried for 2 to 8 hours under temperature of 100 to 140 DEG C and then is dispersed into an absolute ethyl alcohol solution, silane coupling agent is added into the solution, and then the solution is stirred for 0.5 to 3 hours, heated to 70 to 95 DEG C, stirred and returned for 8 to 12 hours under constant temperature; the reaction product is washed by alcohol and water and then is dried and dispersed into the absolute ethyl alcohol, then aniline monomer and 0.5mol/ L hydrochloric acid solution are added, and then the mixture is stirred for 30 minutes in icy bathing water and the temperature is preserved between 0 and 5 DEG C; while in stirring, a solution formed by ammonium persulfate and distilled water is dropped into the mixture and the reaction is preserved for 6 to 8 hours under the temperature of 0 to 5 DEG C; the reaction product is filtered and washed by water and ketone and then is dried to obtain the T-ZnOw coated by PANi; the product is put into hydrochloric acid solution (the PH of which is equal to 0 to 2) for 6 to 18 hours of reaction with stirring, and then the solution is filtered and dried in vacuum to obtain the conductive PANi/T-ZnOw mixed with hydrochloric acid. The conductivity of the product is controlled through controlling the mixing.

Description

technical field [0001] The invention relates to the technical field of material modification, in particular to the technical field of conducting polymers and inorganic composite materials. Background technique [0002] Through the microscopic compounding of two or more materials, a composite material that has both the properties of each component material and unique optical, electrical, magnetic, and catalytic properties can be obtained. Among them, conductive polymer / inorganic particle composite materials have attracted increasing attention due to the combination of the advantages of polymer and inorganic particle materials. [0003] Tetraacicular zinc oxide whisker (T-ZnOw) is a multifunctional metal oxide material. Its microstructure includes a central point and four needle-shaped single crystals extending radially from the same central point into three-dimensional space. The length of the body is 10-200 μm, and the diameter of the root is 0.1-5 μm (such as figure 1 sho...

AI Technical Summary

Problems solved by technology

The preparation of zinc oxide / polyaniline composites by in-situ polymerization of aniline has not been reported so far, and there is no report on the preparation of core-shell structure zinc oxide whiskers / polyaniline with tetrapod structure zinc oxide whiskers as the core and conductive polymer as the shell. Composite Reporting

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