Effects of Natural Chitosan as Biopolymer Coupling Agent on the Pyrolysis Kinetics of Wood Flour/ Polyvinyl Chloride Composites
The thermal degradation behavior and pyrolysis kinetic models of wood flour (WF)/PVC composites before and after adding chitosan were studied using thermogravimetry (TGA) and nine common kinetic model functions (f(α)). The results indicated that the thermal degradation temperature of WF/PVC composit...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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North Carolina State University
2015-06-01
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| Series: | BioResources |
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| Online Access: | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_3_4903_Xu_Natural_Chitosan_Biopolymer_Coupling_Agent |
| _version_ | 1811284303740403712 |
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| author | Kaimeng Xu Taian Chen Zhifeng Zheng Suyong Huang Kaifu Li Tuhua Zhong |
| author_facet | Kaimeng Xu Taian Chen Zhifeng Zheng Suyong Huang Kaifu Li Tuhua Zhong |
| author_sort | Kaimeng Xu |
| collection | DOAJ |
| description | The thermal degradation behavior and pyrolysis kinetic models of wood flour (WF)/PVC composites before and after adding chitosan were studied using thermogravimetry (TGA) and nine common kinetic model functions (f(α)). The results indicated that the thermal degradation temperature of WF/PVC composites was delayed to a higher value after adding chitosan. The first-order reaction order (L1) model and second-order reaction order (L2) model were found to be the best reaction order functions for the description of mass loss kinetics of WF/PVC without chitosan during the first and second stages. Two L2 models were suitable for both degradation stages of WF/CS/PVC. Activation energy (E) and frequency factor (A) for WF/PVC and WF/CS/PVC corresponded to 26.05 kJ·mol-1, 4.08×103 s-1, and 40.89 kJ·mol-1, 2.11×1010 s-1 at the first degradation stage, respectively, and 97.83 kJ·mol-1, 1.11×107 s-1 and 92.88 kJ·mol-1, 1.56×1011 s-1 at the second degradation stage. |
| first_indexed | 2024-04-13T02:27:42Z |
| format | Article |
| id | doaj.art-73b3dc3f4d2a402dbf734dfc30e8900a |
| institution | Directory Open Access Journal |
| issn | 1930-2126 1930-2126 |
| language | English |
| last_indexed | 2024-04-13T02:27:42Z |
| publishDate | 2015-06-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-73b3dc3f4d2a402dbf734dfc30e8900a2022-12-22T03:06:44ZengNorth Carolina State UniversityBioResources1930-21261930-21262015-06-011034903491210.15376/biores.10.3.4903-4912Effects of Natural Chitosan as Biopolymer Coupling Agent on the Pyrolysis Kinetics of Wood Flour/ Polyvinyl Chloride CompositesKaimeng Xu0Taian Chen1Zhifeng Zheng2Suyong Huang3Kaifu Li4Tuhua Zhong5University Key Laboratory of Biomass Chemical Refinery & Synthesis of Yunnan Province, College of Material Engineering, Southwest Forestry University; ChinaUniversity Key Laboratory of Biomass Chemical Refinery & Synthesis of Yunnan Province, College of Material Engineering, Southwest Forestry University; ChinaUniversity Key Laboratory of Biomass Chemical Refinery & Synthesis of Yunnan Province, College of Material Engineering, Southwest Forestry University; ChinaUniversity Key Laboratory of Biomass Chemical Refinery & Synthesis of Yunnan Province, College of Material Engineering, Southwest Forestry University; ChinaDepartment of Forestry, South China Agricultural University; ChinaDivision of Forestry and Natural Resources, West Virginia University; ChinaThe thermal degradation behavior and pyrolysis kinetic models of wood flour (WF)/PVC composites before and after adding chitosan were studied using thermogravimetry (TGA) and nine common kinetic model functions (f(α)). The results indicated that the thermal degradation temperature of WF/PVC composites was delayed to a higher value after adding chitosan. The first-order reaction order (L1) model and second-order reaction order (L2) model were found to be the best reaction order functions for the description of mass loss kinetics of WF/PVC without chitosan during the first and second stages. Two L2 models were suitable for both degradation stages of WF/CS/PVC. Activation energy (E) and frequency factor (A) for WF/PVC and WF/CS/PVC corresponded to 26.05 kJ·mol-1, 4.08×103 s-1, and 40.89 kJ·mol-1, 2.11×1010 s-1 at the first degradation stage, respectively, and 97.83 kJ·mol-1, 1.11×107 s-1 and 92.88 kJ·mol-1, 1.56×1011 s-1 at the second degradation stage.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_3_4903_Xu_Natural_Chitosan_Biopolymer_Coupling_AgentPVCChitosanWood flourPyrolysis kinetic model |
| spellingShingle | Kaimeng Xu Taian Chen Zhifeng Zheng Suyong Huang Kaifu Li Tuhua Zhong Effects of Natural Chitosan as Biopolymer Coupling Agent on the Pyrolysis Kinetics of Wood Flour/ Polyvinyl Chloride Composites BioResources PVC Chitosan Wood flour Pyrolysis kinetic model |
| title | Effects of Natural Chitosan as Biopolymer Coupling Agent on the Pyrolysis Kinetics of Wood Flour/ Polyvinyl Chloride Composites |
| title_full | Effects of Natural Chitosan as Biopolymer Coupling Agent on the Pyrolysis Kinetics of Wood Flour/ Polyvinyl Chloride Composites |
| title_fullStr | Effects of Natural Chitosan as Biopolymer Coupling Agent on the Pyrolysis Kinetics of Wood Flour/ Polyvinyl Chloride Composites |
| title_full_unstemmed | Effects of Natural Chitosan as Biopolymer Coupling Agent on the Pyrolysis Kinetics of Wood Flour/ Polyvinyl Chloride Composites |
| title_short | Effects of Natural Chitosan as Biopolymer Coupling Agent on the Pyrolysis Kinetics of Wood Flour/ Polyvinyl Chloride Composites |
| title_sort | effects of natural chitosan as biopolymer coupling agent on the pyrolysis kinetics of wood flour polyvinyl chloride composites |
| topic | PVC Chitosan Wood flour Pyrolysis kinetic model |
| url | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_3_4903_Xu_Natural_Chitosan_Biopolymer_Coupling_Agent |
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