PDF(Pubmed)
Abstract：
When navigating the environmental exigencies precipitated by global pandemics, the escalation of mask waste presents a multifaceted dilemma. In this avant-garde research, we unveil a novel approach: harnessing the sterilized shredded mask residues (SMRs), predominantly composed of 100 wt. % polypropylene, as pioneering modifiers for asphalt. Distinct proportions of SMR (e.g., 3, 6, and 9 wt. %) were judiciously integrated with fresh-virgin base AP-5 asphalt and subjected to an extensive suite of state-of-the-art examinations, encompassing thin-layer chromatography-flame ionization detection (TLC-FID), Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and specific rheological metrics. The TLC-FID diagnostic trajectories highlighted the nuanced rejuvenating influence of SMR on the binder, a facet reinforced by a pronounced elevation in the thermodynamic stability index (IC). The FT-IR spectra elucidated SMR\'s preeminent role as a filler, negating notions of chemical reactivity. The TGA analyses unveiled an elevated thermal onset of degradation, signposting enhanced thermal resilience, whereas the DSC readings illuminated a superior thermal comportment at lower extremities. The SEM evaluations rendered a clearer panorama: there was heightened textural perturbation at escalated SMR incorporations, yet the 3 wt. % concoction showcased an optimal, coherent microtexture symbiosis with asphalt. The rheological scrutinies revealed a systematic trajectory: a diminishing penetration and ductility countered by ascending softening points and viscosity metrics. The coup de maître stemmed from the DSR analyses, unequivocally validating SMR\'s unparalleled prowess in curtailing rutting distress. This seminal inquiry not only posits a blueprint for refined pavement longevity but also champions a sustainable countermeasure to pandemic-propelled waste, epitomizing the confluence of environmental prudence an d infrastructural fortitude.
摘要：
在应对全球流行病引发的环境紧急情况时，口罩浪费的升级带来了多方面的困境。在这项前卫的研究中，我们揭示了一种新的方法：利用灭菌的切碎的面膜残留物（SMR），主要由100重量组成。%聚丙烯,作为沥青的先驱改性剂。SMR的不同比例(例如，3、6和9wt。％）与新鲜的原始AP-5沥青进行了明智的整合，并接受了广泛的最新检查，包括薄层色谱-火焰离子化检测(TLC-FID)，傅里叶变换红外光谱(FT-IR),扫描电子显微镜（SEM），热重分析（TGA），差示扫描量热法(DSC),和特定的流变指标。TLC-FID诊断轨迹突出了SMR对粘合剂的细微差别的恢复影响，由热力学稳定性指数（IC）明显升高而增强的小平面。FT-IR光谱阐明了SMR作为填料的突出作用，否定化学反应性的概念。TGA分析揭示了降解的热开始升高，路标增强了热弹性，而DSC读数在下肢显示出优异的热性能。SEM评估呈现了更清晰的全景图：在升级的SMR合并中，纹理扰动增加，然而，3wt。%混合物显示出最佳效果，相干微纹理与沥青共生。流变学检查揭示了系统的轨迹：渗透率和延展性的下降被软化点和粘度指标的上升所抵消。政变源于DSR分析，明确验证了SMR在减少车辙困扰方面的无与伦比的能力。这项开创性的调查不仅为精致的路面寿命提供了蓝图，而且还倡导了针对大流行废物的可持续对策，体现了环境审慎与基础设施坚韧的融合。
