文章摘要
Structure and Ashing Properties of Carbon Black-Silica Dual Phase Filler
Received:May 26, 2020  Revised:May 26, 2020
DOI：10.12136/j.issn.1000-890X.2021.08.0576
Key Words: carbon black-silica dual phase filler；microstructure；specific surface area；ashing performance
Author NameAffiliationE-mail
WEI Yuhan* Qingdao University of Science and Technology weiyh@qust.edu.cn 
LIU Fujun Qingdao University of Science and Technology  
WANG Zhengyue Qingdao University of Science and Technology  
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Abstract:
      In this study，the microstructure and ashing properties of three kinds of carbon black-silica dual phase fillers（CSDPF） including CSDPF A，CSDPF B and CSDPF C，were investigated by Fourier transform infrared spectroscopy（FTIR），X-ray photoelectron spectroscopy（XPS），nitrogen adsorption specific surface area test，transmission electron microscopy（TEM），scanning electron microscopy（SEM） and atomic force microscopy（AFM）. FTIR and XPS analysis results showed that CSDPF contained two components：carbon black and silica. SEM and TEM analysis results showed that there was a big difference in the specific surface area and ashing performance among different CSDPF fillers. As the ashing temperature increasing，the carbon black phase was first removed from the CSDPF，resulting in an increase in the specific surface area of the CSDPF，and then silica sintering became dominant，resulting in a decrease in the specific surface area of the CSDPF. SEM analysis results showed that during high-temperature ashing，CSDPF A and CSDPF B first formed spherical aggregates，and due to the different stability of silica，spherical aggregates could be sintered to form larger spherical aggregates or flakes or even network structures. CSDPF C formed a honeycomb structure during the ashing process，and its change was small. Moreover, most of the silica component in CSDPF A and CSDPF B was distributed inside，and most of the silica in CSDPF C was distributed on the surface.
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