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Effect of an antioxidant on the life cycle of wood flour/polypropylene composites

Journal of Forestry Research volume 31, pages 1435–1443 (2020)Cite this article

Abstract

This study assessed the life cycle of biocomposites with antioxidants by repeated processing. The effects of antioxidants on the life cycle of wood flour/polypropylene (PP) composites were determined by analyzing their mechanical and thermal properties. The composites were repeatedly processed for seven times with pelletizing and extruding. An antioxidant, pentaerythritoltetrakys 3-(3,5-ditert-butyl-4-hydroxyphenyl) propionate, was used. The mechanical strength of the biocomposites decreased after reprocessing. Fourier transformed infrared analysis showed that thermo-oxidative aging occurred during reprocessing. The thermal performance of the resulting composites decreased because of reprocessing. Wood flour/PP has a long lifetime and antioxidants can slow the thermo-oxidative and mechanical degradation during reprocessing.

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Authors and Affiliations

  1. Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin, 150040, People’s Republic of China

    Haigang Wang, Jingfa Zhang, Haitao Fu & Weihong Wang

  2. College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, People’s Republic of China

    Qingwen Wang

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  1. Haigang Wang
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  2. Jingfa Zhang
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  3. Haitao Fu
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  4. Weihong Wang
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  5. Qingwen Wang
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Correspondence to Weihong Wang or Qingwen Wang.

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Project funding: This work was supported by the Fundamental Research Funds for the Central Universities (Grant No. 2572018BB07) and the National Natural Science Foundation of China (Grant No. 31670570).

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Corresponding editor: Yu Lei.

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Wang, H., Zhang, J., Fu, H. et al. Effect of an antioxidant on the life cycle of wood flour/polypropylene composites. J. For. Res. 31, 1435–1443 (2020). https://doi.org/10.1007/s11676-019-00898-w

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  • DOI: https://doi.org/10.1007/s11676-019-00898-w

Keywords

  • Wood-plastic composites
  • Polypropylene
  • Reprocessing
  • Antioxidant