Efficient disposal of composite materials recycled from wind turbine blades (WTB) at end-of-life needs to be solved urgently. To investigate the modification effects and mechanism on SBS-modified asphalt of the recycled glass fiber (GF) from WTB, GF-WTB/SBS composite-modified asphalt was prepared. Dynamic shear rheometer (DSR) and bending beam rheometer (BBR) were adopted to evaluate its performance. FTIR, SEM, EDS, and AFM methods were used to assess coupling agent pretreatment effects on GF-WTB and observe the modification mechanism. The macroscopic tests show that reasonable addition of GF-WTB effectively raises the high-temperature performance and low-temperature crack resistance evaluation index k-value of SBS-modified asphalt, and the optimal content is 2 wt% GF-WTB with 4 wt% SBS. FTIR, SEM, and EDS tests show GF-WTB can be successfully grafted by UP152 coupling agent and show that adhesion of the GF-WTB to the SBS-modified asphalt can be improved. AFM observation shows SBS and GF-WTB have good compatibility, improving the asphalt elasticity and toughness. This study provides a feasible solution for environmentally friendly regeneration of the composite materials from WTB and contributes to the development of the secondary modifier of SBS-modified asphalt.
机构:
Changan Univ, Key Lab Special Area Highway Engn, Minist Educ, Middle Sect South Erhuan, Xian 710064, Shaanxi, Peoples R ChinaChangan Univ, Key Lab Special Area Highway Engn, Minist Educ, Middle Sect South Erhuan, Xian 710064, Shaanxi, Peoples R China
Liu, Yumei
Zheng, Mulian
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Changan Univ, Key Lab Special Area Highway Engn, Minist Educ, Middle Sect South Erhuan, Xian 710064, Shaanxi, Peoples R ChinaChangan Univ, Key Lab Special Area Highway Engn, Minist Educ, Middle Sect South Erhuan, Xian 710064, Shaanxi, Peoples R China
Zheng, Mulian
Zhu, Yueming
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Tianjin Beichen Rd Construct & Maintenance Ctr, 10 Yunding Rd, Tianjin 300000, Peoples R ChinaChangan Univ, Key Lab Special Area Highway Engn, Minist Educ, Middle Sect South Erhuan, Xian 710064, Shaanxi, Peoples R China
Zhu, Yueming
Zhu, Linlin
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Changan Univ, Key Lab Special Area Highway Engn, Minist Educ, Middle Sect South Erhuan, Xian 710064, Shaanxi, Peoples R ChinaChangan Univ, Key Lab Special Area Highway Engn, Minist Educ, Middle Sect South Erhuan, Xian 710064, Shaanxi, Peoples R China
Zhu, Linlin
Li, Hongyin
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Qilu Transportat Dev Grp Co Ltd, Longao Rd, Jinan 250014, Shandong, Peoples R ChinaChangan Univ, Key Lab Special Area Highway Engn, Minist Educ, Middle Sect South Erhuan, Xian 710064, Shaanxi, Peoples R China
Li, Hongyin
Liu, Peng
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Qilu Transportat Dev Grp Co Ltd, Longao Rd, Jinan 250014, Shandong, Peoples R ChinaChangan Univ, Key Lab Special Area Highway Engn, Minist Educ, Middle Sect South Erhuan, Xian 710064, Shaanxi, Peoples R China
机构:
College of Polymer Science and Engineering, Sichuan University, Chengdu
Dongfang Electric Co., Ltd., DeyangCollege of Polymer Science and Engineering, Sichuan University, Chengdu
Yang, Senlin
Jia, Dezhuang
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College of Polymer Science and Engineering, Sichuan University, ChengduCollege of Polymer Science and Engineering, Sichuan University, Chengdu
Jia, Dezhuang
Li, Lei
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College of Polymer Science and Engineering, Sichuan University, ChengduCollege of Polymer Science and Engineering, Sichuan University, Chengdu
Li, Lei
Chen, Zhengyuan
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College of Polymer Science and Engineering, Sichuan University, ChengduCollege of Polymer Science and Engineering, Sichuan University, Chengdu
Chen, Zhengyuan
Xu, Jiazhuang
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College of Polymer Science and Engineering, Sichuan University, ChengduCollege of Polymer Science and Engineering, Sichuan University, Chengdu
Xu, Jiazhuang
Zhong, Ganji
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College of Polymer Science and Engineering, Sichuan University, ChengduCollege of Polymer Science and Engineering, Sichuan University, Chengdu