カーボン薄膜でマイクロカプセル化したZnO微粒子導電粉

概要

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A new method has been developed for imparting electric conductivity to ZnO particles. The conductive particles, which are used as the antistatic agents for the protection of electronic machinery against disturbance by static electricity occurring in plastic and rubber materials, were obtained by treating pure ZnO particles with propylene at a temperature of- or higher than 300℃ and depositing the electric conductive film. The properties of the products deposited on ZnO particles were investigated by ESCA, X-ray diffraction and IR analysis. The electric conductivity, carbon content and whiteness levels of this powder were measured. The products on ZnO were mostly carbon and formed a 1nm thick film. In comparison with the conventional technique of Al doping ZnO, it has been ascertained that the conductivity is achievable by this new technique while the particles remain small in size. These conductive particles are comparable regarding conductivity, particle size and whiteness with the Sb-doped conductive SnO_2 particles currently in market. In addition, they are advantageous in that they can be produced at a much lower cost due to the simplified production process and lower material costs.
社団法人日本材料学会の論文
1989-02-15