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<p>This study presents a detailed comparative analysis of thermogravimetric analysis (TGA) and microscale combustion calorimetry (MCC) applied to three types of waste polymers: polystyrene (PS), low-density polyethylene (LPE), and polyvinyl chloride (PVC). The goal is to ascertain the correlation between TGA and MCC for assessing the thermal decomposition characteristics and combustion behaviors of these polymers under varied atmospheric and heating conditions, emphasizing their potential recyclability and energy recovery efficiency in sustainable waste management. For PS and LPE in nitrogen atmospheres, both TGA and MCC demonstrate closely matched reaction rates and conversion profiles, indicating uniform decomposition processes conducive to energy recovery. Conversely, PVC exhibits significant differences under oxidative conditions, reflecting its complex, multi-stage decomposition which impacts its suitability for energy recovery. The findings underscore the importance of choosing the right analytical methods for evaluating the combustion properties of polymers, ensuring their compatibility with sustainable energy practices. This research not only advances our understanding of polymer decomposition in renewable energy contexts but also guides the optimization of material design for improved fire safety and sustainability.</p>

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Investigating correlations between thermogravimetric analysis and microscale combustion calorimetry in polymer studies

  • 期刊论文

  • 发表日期：

    2025年1月27日

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  • Mi Li,
  • Zhongxuan Han,
  • Lin Jiang,
  • Qiang Xu

摘要

This study presents a detailed comparative analysis of thermogravimetric analysis (TGA) and microscale combustion calorimetry (MCC) applied to three types of waste polymers: polystyrene (PS), low-density polyethylene (LPE), and polyvinyl chloride (PVC). The goal is to ascertain the correlation between TGA and MCC for assessing the thermal decomposition characteristics and combustion behaviors of these polymers under varied atmospheric and heating conditions, emphasizing their potential recyclability and energy recovery efficiency in sustainable waste management. For PS and LPE in nitrogen atmospheres, both TGA and MCC demonstrate closely matched reaction rates and conversion profiles, indicating uniform decomposition processes conducive to energy recovery. Conversely, PVC exhibits significant differences under oxidative conditions, reflecting its complex, multi-stage decomposition which impacts its suitability for energy recovery. The findings underscore the importance of choosing the right analytical methods for evaluating the combustion properties of polymers, ensuring their compatibility with sustainable energy practices. This research not only advances our understanding of polymer decomposition in renewable energy contexts but also guides the optimization of material design for improved fire safety and sustainability.