Abstract：
Thermal insulation materials are important for building energy conservation, but their wastes have increased sharply. Furthermore, pyrolysis and combustion are increasingly utilized to dispose of solid wastes and convert them into value-added fuels. To better understand the pyrolysis and combustion characteristics of these materials, typical thermal insulation materials (expanded polystyrene (EPS) and extruded polystyrene (XPS)) were investigated by employing thermogravimetry and differential scanning calorimetry as well as cone calorimetry experiments. Pyrolysis behavior, kinetic parameters, pyrolysis index, thermodynamic parameters, endothermic properties and combustion parameters were estimated comprehensively. The results showed that EPS had better pyrolysis properties, while XPS had better combustion characteristics. Activation energies of EPS and XPS were 158.82 kJ/mol and 200.70 kJ/mol, respectively. Additionally, EPS had a higher pyrolysis stability index and comprehensive pyrolysis index, meaning a more intense reaction. Moreover, thermodynamic parameters indicated that the devolatilization products could be obtained easily from the two materials, and EPS and XPS could be converted into fuels. For the combustion, XPS had a smaller fire performance index and a larger fire growth index. These results can guide the reactor design and optimization for better converting polymer wastes into fuels and managing wastes.
摘要：
保温材料是建筑节能的重要材料,但是他们的浪费急剧增加。此外，热解和燃烧越来越多地用于处理固体废物并将其转化为增值燃料。为了更好地了解这些材料的热解和燃烧特性，通过热重法和差示扫描量热法以及锥形量热法实验研究了典型的隔热材料（发泡聚苯乙烯（EPS）和挤出聚苯乙烯（XPS））。热解行为，动力学参数，热解指数,热力学参数,对吸热特性和燃烧参数进行了综合评价。结果表明,EPS具有较好的热解性能,XPS具有较好的燃烧特性。EPS和XPS的活化能分别为158.82kJ/mol和200.70kJ/mol,分别。此外,EPS具有较高的热解稳定性指数和综合热解指数,意味着更强烈的反应。此外，热力学参数表明，从两种材料中可以容易地获得脱挥发分产物，EPS和XPS可以转化为燃料。对于燃烧，XPS具有较小的火灾性能指标和较大的火灾增长指数。这些结果可以指导反应器的设计和优化，以更好地将聚合物废物转化为燃料和管理废物。
