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- Title
Co-pyrolysis of poly (methyl methacrylate) and sugarcane bagasse evaluated through multiple kinetic analysis methods.
- Authors
Zhang, Huili; Huang, Zhen; Liu, Ting-ting; Zheng, Siqi
- Abstract
The aim of present work is to evaluate pyrolysis characteristics of poly(methyl methacrylate) (PMMA) and its blends with sugarcane bagasse (SB) contents of 10 and 20 mass % for the purpose of exploring the effect of SB on pyrolysis of PMMA. Non-isothermal pyrolysis determinations of three PMMA samples were performed thermogravimetrically and the initial pyrolysis temperatures of two PMMA blends are significantly lower than that of pure PMMA while the main pyrolysis shifts to higher temperature range. Using model-free isoconversional methods, pyrolysis activation energies calculated are varying within 71.7 ~ 154.0, 107.8 ~ 192.0 and 121.3 ~ 171.0 kJ·mol−1 for PMMA and its 10 or 20 mass % SB blends, respectively. The added SB turns to increase the activation energy of PMMA and thus make pyrolysis of PMMA become more arduous to accomplish. With the model-fitting method, the order-based F2/3, F3 and F3 chemical reaction models are found to be the most appropriate pyrolysis mechanisms for PMMA and its 10 or 20 mass % SB blends, respectively. Accordingly, their pre-exponential factor values are estimated to separately span in the range of 3.23 × 104 ~ 1.76 × 1011, 3.52 × 108 ~ 7.63 × 1016 and 1.55 × 1010 ~ 1.13 × 1015 min−1. The findings acquired from present work can provide necessary information for performing potential pyrolysis designs of PMMA and its biomass blended wastes.
- Subjects
METHYL methacrylate; CHEMICAL models; ACTIVATION energy; CHEMICAL reactions; BAGASSE
- Publication
Journal of Thermal Analysis & Calorimetry, 2024, Vol 149, Issue 17, p9353
- ISSN
1388-6150
- Publication type
Article
- DOI
10.1007/s10973-024-13396-x