文章摘要
Study on Mechanochemical Modification of Rubber Powder and Properties of Its Blend with NR
Received:December 24, 2018  Revised:December 24, 2018
DOI：10.12136/j.issn.1000-890X.2020.03.0196
Key Words: rubber powder；mechanochemical modification；NR；blend；open mill；running number
Author NameAffiliationE-mail
ZENG Dong Yangzhou University zd403367596@126.com 
WU Junqing Yangzhou University  
LIU Junliang* Yangzhou University liujunliang@yzu.edu.cn 
ZHANG Ming Yangzhou University  
TIAN Yao China（Yangzhou） Material Handling Tech-Engineering Ltd  
MAO Qiu China（Yangzhou） Material Handling Tech-Engineering Ltd  
JIANG Jianliang China（Yangzhou） Material Handling Tech-Engineering Ltd  
CHEN Xuan China（Yangzhou） Material Handling Tech-Engineering Ltd  
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Abstract:
      The mechanochemical modification of the rubber powder on open mill was analyzed，and the properties of the modified rubber powder/natural rubber（NR） blends were studied. The results showed that，under the mechanochemistry action using an open mill，the crosslinking network of the rubber powder compound was broken apart，the bonds of the rubber molecular chain was broken to form free radicals，and the modification of the rubber powder was achieved. With increase of the run number of the rubber powder on open mill，the free radical concentration of the rubber power compound increased，the interface compatibility and interaction between the modified rubber powder and NR gradually increased，the dispersion of the rubber powder in NR was more uniform，the modified rubber powder compound and NR formed a co-construction network，and the tensile strength and elongation at break of the modified rubber powder/NR blend increased significantly.
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