Preparation and property of CaCO3-SiO2-PANI conductivity composite powders
ZHAO Xing
LIAO Qilong
WANG Fu
LIU Laibao
YU Hongtao
Abstract：Calcium carbonate (CaCO3) was successfully coated by SiO2,then polyaniline (PANI) was in situ polymerized to form a novel CaCO3-SiO2-PANI conductivity composite powders.The samples were characterized by the means of SEM,XRD,TG and resistivity meter,the effects of mass ratio m(CaCO3-SiO2):m(An) on the morphology,structure and conductivity of CaCO3-SiO2-PANI powders were studied.The results shows that conductivity of CaCO3-SiO2/PANI powders decrease from 5.6×102 to 5.7×103 S ·cm-1 with increasing mass ratio m(CaCO3-SiO2):m(An) from 1:1 to 3:1.The morphology of CaCO3-SiO2-PANI changes obviously when mass ratio was 3:1 and CaSO4 formed,coating with PANI did not change the structure of CaCO3.The conductivity composite powders show good heat resistance and excellent conductivity when the temperature below 200 ℃.
Keywords：conductivity composite powderscalcium carbonatemorphologystructureconductivity
Publication Date：2017-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 93-98 )