Majka Tomasz M, Ostrowski Krzysztof Adam, Piechaczek Marcin
Department of Chemistry and Technology of Polymers, Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland.
Faculty of Civil Engineering, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland.
Materials (Basel). 2023 Sep 18;16(18):6258. doi: 10.3390/ma16186258.
Due to the growing need to recycle plastics, new possibilities for their reuse are intensively sought. In the Asian market, waste polymers are increasingly used to modify road bitumen. This solution is beneficial in many aspects, especially in economic and ecological terms. In this work, recycled poly(ethylene terephthalate) (RPET), obtained from storage points located in Lesser Poland, was subjected to material recycling, and its properties were examined using three analyses: differential scanning calorimetry (DSC), thermogravimetric analysis (TG), and Fourier transform infrared spectroscopy (FTIR). The most important point of this research was the selection of conditions for obtaining modified asphalt mixtures through the addition of RPET. Subsequently, the effect of the polymer on the properties of road bitumens was assessed on the basis of penetration tests, softening point, elastic recovery, and structure. In the last stage of our research work, asphalt mixtures with the addition of modified waste PET (PMA) containing mineral filler in the form of basalt dust were obtained. The properties of the obtained mineral-polymer-asphalt mixtures were compared in terms of frost resistance, structure, and abrasion resistance with the properties of mineral-asphalt mixtures that were taken from damaged road surfaces in four points in the city of Tarnów (Lesser Poland) in the winter of 2022. It has been shown that the modification of road bitumen with the use of recyclate and mineral filler has a significant impact on its performance properties.
由于塑料回收需求不断增长，人们正在积极探寻其新的再利用可能性。在亚洲市场，废聚合物越来越多地用于改性道路沥青。这种解决方案在许多方面都有益处，特别是在经济和生态方面。在这项工作中，从位于小波兰的存储点获取的回收聚对苯二甲酸乙二酯（RPET）进行了材料回收，并使用差示扫描量热法（DSC）、热重分析（TG）和傅里叶变换红外光谱法（FTIR）三种分析方法对其性能进行了检测。本研究的最重要点是选择通过添加RPET获得改性沥青混合料的条件。随后，基于针入度试验、软化点、弹性恢复和结构评估了聚合物对道路沥青性能的影响。在我们研究工作的最后阶段，获得了添加含有玄武岩粉尘形式矿物填料的改性废PET（PMA）的沥青混合料。将所获得的矿物 - 聚合物 - 沥青混合料的抗冻性、结构和耐磨性等性能与2022年冬季从塔尔努夫市（小波兰）四个地点受损路面获取的矿物 - 沥青混合料的性能进行了比较。结果表明，使用回收物和矿物填料对道路沥青进行改性对其性能有显著影响。
