Recycling of waste printed circuit boards: Effect of PCB on aging resistance property of SBR modified asphalt

被引:7
|
作者
Meng, Yongjun [1 ,2 ,3 ]
Zhang, Chunyu [1 ]
Liu, Zhirong [1 ]
Ling, Lishan [1 ]
Lei, Jiechao [1 ,4 ]
Fang, Guipeng [1 ]
Luo, Xiaowan [1 ]
机构
[1] Guangxi Univ, Coll Civil Engn & Architecture, Nanning 530004, Peoples R China
[2] Minist Educ, Key Lab Disaster Prevent & Engn Safety, Nanning 530004, Peoples R China
[3] Special Geol Highway Safety Engn Technol Res Ctr G, Nanning 530004, Peoples R China
[4] Guangxi Transportat Sci & Technol Grp Co Ltd, Nanning 530004, Peoples R China
来源
JOURNAL OF BUILDING ENGINEERING | 2023年 / 72卷
基金
中国国家自然科学基金;
关键词
Printed circuit boards nonmetallic powder; Styrene butadiene rubber; Aging property; Microscopic mechanism; HIGH-TEMPERATURE PERFORMANCE; EVOLUTION; RHEOLOGY; BINDERS; ACID;
D O I
10.1016/j.jobe.2023.106617
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The disposal of nonmetallic waste of printed circuit boards (PCB) is mainly through incineration or landfill, which can cause serious environmental pollution and waste resources. In order to efficiently recover PCB, this paper focuses on the effect of PCB on the aging property of SBR modified asphalt. Indoor simulated aging tests were employed to evaluate the aging property of PS asphalt, and the aging rheological behaviors explored by the Dynamic shear rheometer (DSR). Furthermore, fluorescence microscopy (FM) and Fourier Transform Infrared spectroscopy (FTIR) tests were employed for the analysis of PS asphalt's aging mechanism from the microscopic composition and structure. The results show that with the incorporation of PCB, the asphaltene and glial molecules in the structure of SBR asphalt components increase. These macromolecules are adsorbed on the surface of asphalt and are not easily aged, which can protect the internal components of asphalt from the effects of aging. Therefore, the aging performance index of PS asphalt is significantly better than that of SBR and base asphalt, and the aging performance is obviously improved, and the incorporation of PCB enhances the deformation resistance of SBR asphalt; FM analysis shows that the incorporation of PCB before aging helps to improve the deformation resistance of SBR asphalt, but weakens its compatibility. The PS asphalt after aging is more stable in structure; FTIR test shows that the addition of PCB makes the PS asphalt can better inhibit the formation of asphalt carbonyl and sulfoxide groups and has strong resistance to aging. The study shows that the addition of PCB as a modifier to SBR modified asphalt improves the aging resistance and rheological property of SBR asphalt after aging, and can be used as a new environmental protection means to treat PCB.
引用
收藏
页数:17
相关论文
共 50 条
  • [31] Recycling Of the Epoxy Resin of the Waste Printed Circuit Boards Using Solvent Extraction
    Ma Linzhuan
    Wang Hua
    Qing Shan
    Ma Linzhuan
    MANUFACTURING SCIENCE AND TECHNOLOGY, PTS 1-8, 2012, 383-390 : 3140 - 3144
  • [32] Using vacuum pyrolysis and mechanical processing for recycling waste printed circuit boards
    Long, Laishou
    Sun, Shuiyu
    Zhong, Sheng
    Dai, Wencan
    Liu, Jingyong
    Song, Weifeng
    JOURNAL OF HAZARDOUS MATERIALS, 2010, 177 (1-3) : 626 - 632
  • [33] A novel recycling approach for transforming waste printed circuit boards into a material resource
    Khanna, R.
    Cayumil, R.
    Mukherjee, P. S.
    Sahajwalla, V.
    URBAN ENVIRONMENTAL POLLUTION 2013 - CREATING HEALTHY, LIVABLE CITIES, 2014, 21 : 42 - 54
  • [34] Effect of Membrane Pore Size on Copper Recycling from Waste Printed Circuit Boards by Slurry Electrolysis
    Tian, Wenzeng
    Yan, Hongyan
    Pang, Fuwei
    Liang, Qian
    Chen, Mengjun
    JOM, 2024,
  • [35] Study on Rheological Properties of Bituminous Binders and Mixtures Containing Waste Printed Circuit Boards (PCBs) and SBR Compound Modified Bitumen
    Meng, Yongjun
    Liao, Yongjie
    Liu, Zhirong
    Chen, Jing
    Yang, Xiaolong
    Rong, Hongliu
    MATERIALS, 2021, 14 (07)
  • [36] Effect of Membrane Pore Size on Copper Recycling from Waste Printed Circuit Boards by Slurry ElectrolysisEffect of Membrane Pore Size on Copper Recycling from Waste Printed Circuit Boards by Slurry ElectrolysisTian, Yan, Pang, Liang, and Chen
    Wenzeng Tian
    Hongyan Yan
    Fuwei Pang
    Qian Liang
    Mengjun Chen
    JOM, 2025, 77 (5) : 3105 - 3111
  • [37] Determining the Most Appropriate Upcycling and Recycling Methods for the Management of Waste Printed Circuit Boards
    Elmas, Zehra Gizem
    Gunkaya, Zerrin
    Ozkan, Aysun
    Banar, Mufide
    PROCEEDINGS OF THE 6TH EURASIA WASTE MANAGEMENT SYMPOSIUM, EWMS 2022, 2022, : 101 - 107
  • [38] Separating and recycling metal mixture of pyrolyzed waste printed circuit boards by a combined method
    Chen, Bin
    He, Jie
    Sun, Xiaojun
    Zhao, Jiuzhou
    Jiang, Hongxiang
    Zhang, Lili
    WASTE MANAGEMENT, 2020, 107 : 113 - 120
  • [39] Recycling of waste printed circuit boards: A review of current technologies and treatment status in China
    Huang, Kui
    Guo, Jie
    Xu, Zhenming
    JOURNAL OF HAZARDOUS MATERIALS, 2009, 164 (2-3) : 399 - 408
  • [40] Liquid-liquid hierarchical separation and metal recycling of waste printed circuit boards
    Chen, Bin
    He, Jie
    Xi, Yaoyao
    Zeng, Xiangfeng
    Kaban, Ivan
    Zhao, Jiuzhou
    Hao, Hongri
    JOURNAL OF HAZARDOUS MATERIALS, 2019, 364 : 388 - 395