文章摘要
Micronized Fly Ash Prepared through Microbiolization and Ball Milling and Its Reinforcement to NR
Received:June 29, 2021  Revised:June 29, 2021
DOI：10.12136/j.issn.1000-890X.2022.12.0883
Key Words: fly ash；microbiolization；corrosion；ball milling；micronization；NR；reinforcement
Author NameAffiliationE-mail
MENG Ziyi Hubei University of Technology bluesmengz@163.com 
LIU Yongming Beihang University  
KUAI Rong Hubei University of Technology  
LEI Qianjie Hubei University of Technology  
FU Xudong Hubei University of Technology  
ZHANG Rong Hubei University of Technology  
HU Shengfei Hubei University of Technology  
Liu Qingting* Hubei University of Technology liuqt@hbut.edu.cn 
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Abstract:
      In the first step，the fly ash was subjected to microbial corrosion treatment，and then the micronized fly ash was prepared by ball-milling process. After 20 min of ball milling，the average particle size of the fly ash was effectively reduced from about 1 250 nm to 194 nm，which was significantly smaller than that of the fly ash （about 504 nm） obtained by direct ball milling under the same conditions. More importantly，there were still hydrophilic and lipophilic biofilms on the surface of the microbial modified fly ash even after ball milling，which was beneficial to improve the interface compatibility of the fly ash and organic materials. The tensile strength of natural rubber（NR） composites with micronized fly ash/carbon black blend could reach 24. 6 MPa，which was equivalent to that of NR composite reinforced by carbon black alone. The scanning electron microscope analysis also confirmed that the compatibility of the micronized fly ash after microbiolization and ball milling treatment with NR was greatly improved.
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