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废口罩纤维改性沥青的微观机理及老化性能分析
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Abstract:
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。
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.
| [1] | 叶小波, 唐林, 陈春亮, 董雄伟, 叶兆青. 医用口罩非织造材料研究进展[J]. 纺织科技进展, 2020(10): 11-14+18. |
| [2] | 人民日报社. 16亿枚口罩正威胁海洋生态, 至少450年才能分解[EB/OL].
https://finance.sina.com.cn/jjxw/2021-02-04/doc-ikftssap3581427.shtml, 2023-10-22. |
| [3] | Kilmartin-Lynch, S., Saberian, M., Li, J., Roychand, R. and Zhang, G.M. (2021) Preliminary Evaluation of the Feasibility of Using Polypropylene Fibers from COVID-19 Single-Use Face Masks to Improve the Mechanical Properties of Concrete. Journal of Cleaner Production, 296, Article 126460. https://doi.org/10.1016/j.jclepro.2021.126460 |
| [4] | 马立纲, 葛生深, 赵增刚, 等.一次性医用口罩改性沥青的流变性能研究[EB/OL]. 武汉理工大学学报(交通科学与工程版). http://kns.cnki.net/kcms/detail/42.1824.U.20211202.2235.002.html, 2023-10-11. |
| [5] | 程培峰, 郑春萌, 张展铭, 等. 废旧口罩熔喷布对沥青及混合料性能影响研究[J]. 森林工程, 2021, 37(6): 126-134. |
| [6] | 杨军, 龚明辉, Pauli, T., 等. 基于原子力显微镜的沥青微观结构研究[J]. 石油学报(石油加工), 2015, 31(4): 959-965. |
| [7] | 吴文娟, 金永灿, 吴建涛, 等. 木质素改性沥青的红外光谱分析[J]. 江苏大学学报(自然科学版), 2019, 40(1): 120-124. |
| [8] | Pauli, A.T. and Grimes, W. (2003) Phological Stability Modeling of Sharp Asphalts: Stability and Compatibility of Heavy Oils and Residua. Preprints-American Chemical Society. Division of Petroleum Chemistry, 48, 19-23. |
| [9] | Loeber, L., Muller, G., Morel, J. and Sutton, O. (1998) Bitumen in Colloid Science: A Chemical, Structural 44 and Rheological Approach. Fuel, 77, 1443-1450. https://doi.org/10.1016/S0016-2361(98)00054-4 |
| [10] | 曹宇坤, 刘红瑛, 关泊, 等. 塔河沥青及其改性沥青微观结构特征研究[J]. 公路, 2023, 68(6): 410-417. |
| [11] | 许志杨, 沈菊男, 刘燕, 等. 基于原子力显微镜技术对全气候老化沥青的老化非线性预测[J]. 材料科学与工程学报, 2021, 39(2): 288-293+316. https://doi.org/10.14136/j.cnki.issn1673-2812.2021.02.020 |
| [12] | 樊钊甫. 基于沥青老化的沥青微观特性基础理论研究[D]: [硕士学位论文]. 广州: 华南理工大学, 2017. |
| [13] | 李冀. 基于AFM的SBS改性沥青老化前后微观特性研究[D]: [硕士学位论文]. 呼和浩特: 内蒙古工业大学, 2020. |
