| Study on Pyrolysis Kinetics of Silica Tread Compound |
| Received:March 18, 2020 Revised:March 18, 2020 |
| DOI：10.12136/j.issn.1000-890X.2020.11.0812 |
| Key Words: silica tread compound；pyrolysis；kinetics；thermogravimetric analysis；mechanism function；activation energy；pre-exponential factor |
| Author Name | Affiliation | E-mail | | ZHAO Baishun | Qingdao University of Science and Technoledgy | | | WANG Chuansheng* | Qingdao University of Science and Technoledgy | lsm8410@163.com |
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| Abstract: |
| Without the assumption of kinetic model，the kinetic analysis of complex pyrolysis process of silica tread compound was completed by integrating multiple dynamics research methods.The reaction mechanism of pyrolysis kinetics was obtained and three factors（mechanism function，activation energy and pre-exponential factor） of pyrolysis kinetics were got accurately.The results showed that the pyrolysis process of silica tread compound could be divided into two stages，namely sub reaction Ⅰ and sub reaction Ⅱ.The mechanism function of sub reaction Ⅰ was f（α）＝0.247 3α-3.043 7，activation energy was 155.26 kJ·mol-1，and pre-exponential factor was 1.288×1012 min-1.The mechanism function of sub reaction Ⅱ was f（α）＝0.414 2 (1－α) [－ln（1－α）]-1.414 3，activation energy was 315.40 kJ·mol-1，and the pre-exponential factor was 3.099×1024 min-1. |
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