The crystallization behavior of polyolefins continues to gain much attention for the prediction of suitable processing conditions. This study aims to understand the influence of biochar (BC) particles on the crystallization behavior of the selected semi-crystalline polypropylene (PP). For this purpose, BC samples were prepared from waste biomass at various pyrolysis temperature. The prepared BC samples were used to fabricate PP composites via melt processing technique. The crystallization behavior of these composites was studied by differential scanning calorimetry (DSC) calorimetry and validated using Avrami analysis in a non-isothermal conditions. It was observed that BC particles act as nucleating agents and accelerate the overall rate of crystallization. Avrami theory analysis indicated that the addition of BC particles provides polypropylene (PP) composites with a higher crystallization rate, i.e. about one order of magnitude higher than the neat PP. The results of the TGA analysis showed that the BC particles enhanced the thermal stability of the BC/PP composites, and is up to 80 °C higher than the neat PP sample.

聚烯烃的结晶行为继续在预测合适的加工条件方面引起广泛关注。这项研究旨在了解生物炭（BC）颗粒对所选半结晶聚丙烯（PP）结晶行为的影响。为此目的，在各种热解温度下，由废生物质制备了BC样品。将制备的BC样品用来制造PP复合材料通过熔体加工技术。通过差示扫描量热法（DSC）量热法研究了这些复合材料的结晶行为，并在非等温条件下使用Avrami分析对其进行了验证。观察到，BC颗粒充当成核剂并加速了总体结晶速率。Avrami理论分析表明，添加BC颗粒可为聚丙烯（PP）复合材料提供更高的结晶速率，即比纯PP高约一个数量级。TGA分析的结果表明，BC颗粒增强了BC / PP复合材料的热稳定性，并且比纯PP样品高80°C。