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<p>In the current scenario, paddy straw burning or parali burning is a major environmental concern causing severe air pollution, and contributing to global warming as well as affecting human health. This study explores the gainful utilization of these agro-wastes paddy straw particulates (PSP) as reinforcement in polypropylene (PP) matrix for fabricating wood plastic composites (WPCs) with different filler loadings up to 60 wt% and manufactured via injection molding at 160℃. The developed composites were characterized for mechanical, structural, thermal and morphological properties. The density and water absorption of the developed WPCs ranged from 0.936 to 1.035&#xa0;g/cm<sup>3</sup> and 0.092–1.816%, respectively. Thermal conductivity decreased with increasing PSP content, reaching a minimum of 0.236 ± 0.012&#xa0;W/mK at maximum 60 wt% filler. Further, maximum tensile and flexural strengths of 27.83 ± 0.49&#xa0;MPa and 44.44 ± 0.13&#xa0;MPa were achieved at 20% filler loading, whereas, maximum impact strength of 1.89 ± 0.13 KJ/m<sup>2</sup> was recorded at 60 wt%. Thus, the findings confirmed the possibility of cellulosic PSP as a potential reinforcing filler for fabricating WPCs, significantly contributing towards sustainable circular economy approach aligned with United Nation Sustainable Development Goals (UNSDGs).</p>

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Cellulosic paddy straw particulates fortified sustainable wood plastic composites & its performance - towards a sustainable approach

  • 期刊论文

  • 发表日期：

    2026年7月14日

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  • Ravi Patidar,
  • Medha Mili,
  • Asokan Pappu

摘要

In the current scenario, paddy straw burning or parali burning is a major environmental concern causing severe air pollution, and contributing to global warming as well as affecting human health. This study explores the gainful utilization of these agro-wastes paddy straw particulates (PSP) as reinforcement in polypropylene (PP) matrix for fabricating wood plastic composites (WPCs) with different filler loadings up to 60 wt% and manufactured via injection molding at 160℃. The developed composites were characterized for mechanical, structural, thermal and morphological properties. The density and water absorption of the developed WPCs ranged from 0.936 to 1.035 g/cm3 and 0.092–1.816%, respectively. Thermal conductivity decreased with increasing PSP content, reaching a minimum of 0.236 ± 0.012 W/mK at maximum 60 wt% filler. Further, maximum tensile and flexural strengths of 27.83 ± 0.49 MPa and 44.44 ± 0.13 MPa were achieved at 20% filler loading, whereas, maximum impact strength of 1.89 ± 0.13 KJ/m2 was recorded at 60 wt%. Thus, the findings confirmed the possibility of cellulosic PSP as a potential reinforcing filler for fabricating WPCs, significantly contributing towards sustainable circular economy approach aligned with United Nation Sustainable Development Goals (UNSDGs).