废口罩纤维改性沥青的微观机理及老化性能分析
Analysis of the Micro-Mechanism and Aging Properties of Asphalt Modified by Waste Mask Fibers
摘要: 为有效高值再利用废弃口罩，本研究将废口罩纤维用作改性沥青的改性剂，利用红外光谱法分析废口罩纤维改性沥青的改性机理；运用原子力显微镜分析废口罩纤维改性沥青的微观形貌和老化机理。研究发现废口罩纤维与基质沥青具有很好的相容性，两者属于物理混合；废口罩纤维改性沥青比原基质沥青，“蜂窝结构”的数量和面积明显减少，粗糙度大幅降低，老化程度深的“蜂窝结构”变化幅度小，具有更好的抗老化性能。
Abstract: In order to effectively reuse the waste masks at high value, this study uses the waste mask fibers as the modifier of modified asphalt, using infrared spectroscopy to analyze the modification mechanism of the waste mask fiber modified asphalt; atomic force microscopy to analyze the microscopic morphology of the waste mask fibers modified asphalt and the aging mechanism. Research has found that waste mask fibers have good compatibility with matrix asphalt, and the two belong to a physical mixture; Compared with the original matrix asphalt, the number and area of “honeycomb structure” of waste mask fiber modified asphalt are significantly reduced, and the roughness is significantly reduced. The “honeycomb structure” with deep aging degree has a small change range, which has better anti-aging performance.
文章引用：李心怡, 聂忆华, 杜思怡, 张广进, 杜泓毅. 废口罩纤维改性沥青的微观机理及老化性能分析[J]. 土木工程, 2024, 13(1): 65-71. https://doi.org/10.12677/HJCE.2024.131010

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