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240723s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2024.07.020
|2 doi
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|a pubmed24n1498.xml
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|a eng
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|a Xu, Mingxin
|e verfasserin
|4 aut
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|a Recovering high-quality glass fibers from end-of-life wind turbine blades through swelling-assisted low-temperature pyrolysis
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|c 2024
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|a Text
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 10.08.2024
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|a Date Revised 10.08.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2024 Elsevier Ltd. All rights reserved.
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|a The recycling of end-of-life wind turbine blades has become a global environmental challenge driven by the rapid growth of wind power. Pyrolysis is a promising method for recovering glass fibers from these discarded blades, but traditional pyrolysis is often operated at high temperatures, which degrades the mechanical properties of recovered fibers. To address this issue, a swelling-assisted pyrolysis method was proposed to recover high-quality glass fibers from end-of-life wind turbine blades at low temperatures. The results confirmed that the decomposition of the resin matrix within the blade was significantly promoted at low temperatures in the swelling-assisted pyrolysis process, achieving a resin decomposition ratio of 76.8 % at 350 °C. This improvement was attributed to enhanced heat transfer and co-pyrolysis with acetic acid. Swelling could physically disrupt the cross-linked structure of the blade, creating a more porous and layered structure, thereby enhancing heat transfer during the pyrolysis process. Simultaneously, the co-pyrolysis with acetic acid could generate hydrogen radicals, which promoted the cracking of macromolecular oligomers into lighter products or gaseous alkanes. Consequently, the formation of pyrolysis char within the solid pyrolysis product was reduced, shortening the oxidation duration to 30 min. In comparison to traditional pyrolysis, the swelling-assisted pyrolysis process effectively suppressed the diffusion of surface defects over the recovered fibers, leading to promising improvements in their flexibility, elasticity, and mechanical properties, with tensile strength notably increased by 27.5 %. These findings provided valuable insights into recovering high-quality glass fibers from end-of-life wind turbine blades
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|a Journal Article
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|a Epoxy resin degradation
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|a Low-temperature
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|a Recovered glass fibers
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|a Swelling-assisted pyrolysis
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|a Wind turbine blade
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|a fiberglass
|2 NLM
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|a Yang, Jie
|e verfasserin
|4 aut
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|a Ji, Haiwen
|e verfasserin
|4 aut
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|a Wu, Yachang
|e verfasserin
|4 aut
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|a Li, Jihong
|e verfasserin
|4 aut
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|a Di, Jinyi
|e verfasserin
|4 aut
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|a Meng, Xiangxi
|e verfasserin
|4 aut
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|a Jiang, Hao
|e verfasserin
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|a Lu, Qiang
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 187(2024) vom: 01. Aug., Seite 179-187
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnns
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|g volume:187
|g year:2024
|g day:01
|g month:08
|g pages:179-187
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|u http://dx.doi.org/10.1016/j.wasman.2024.07.020
|3 Volltext
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