Surface-Treated Recycling Fibers from Wind Turbine Blades as Reinforcement for Waste Phosphogypsum
An attempt at the treatment of the waste fiber (WF) from the wind turbine blade (WTB) was made through the modifier of dopamine hydrochloride and the compound modifier of dopamine hydrochloride and 2,5-dihydroxy terephthalic acid or 3,4-dihydroxy cinnamic acid or 3,4-dihydroxy benzonitrile, correspo...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/24/8668 |
| _version_ | 1797456076732366848 |
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| author | Lilin Yang Weilin Zhao Daobei Wang Yang Liu Dongzhi Wang Na Cui |
| author_facet | Lilin Yang Weilin Zhao Daobei Wang Yang Liu Dongzhi Wang Na Cui |
| author_sort | Lilin Yang |
| collection | DOAJ |
| description | An attempt at the treatment of the waste fiber (WF) from the wind turbine blade (WTB) was made through the modifier of dopamine hydrochloride and the compound modifier of dopamine hydrochloride and 2,5-dihydroxy terephthalic acid or 3,4-dihydroxy cinnamic acid or 3,4-dihydroxy benzonitrile, corresponding to obtain four modified waste fibers (MWF1, MWF2, MWF3, and MWF4). The MWFs samples’ microstructure properties were characterized using SEM, EDS, XPS, FTIR analyses, and water contact angle tests. The results revealed that all the MWF surfaces were wrapped by a distinct coating layer and had different elemental compositions and chemical groups, demonstrating the significant effect of the four modifications on the WF surfaces. The hydroxyl, amino, or nitrile groups were grafted onto the WF surfaces causing improvement of the hydrophilicity and reactivity. Furthermore, all the MWFs as the reinforced materials were incorporated into the industrial waste phosphogypsum (PG) to manufacture the phosphorous-building gypsum composites (PBGC). The effects on the micro-morphology and mechanical properties of the PBGC were evaluated. The results also show the improvement in flexural and compressive strength with the addition of MWFs into the PBGC, due to the enhancement of the compactness between the MWF and phosphogypsum matrix. In particular, the effects of three compound modifiers on the flexural and compressive strength are more significant. The highest flexural and compressive strength was contributed by the PBGC-MWF4 with 2% dosage using a compound modifier of dopamine hydrochloride and 3,4-dihydroxy benzonitrile, which were enhanced 61.04% and 25.97% compared with the PBG. |
| first_indexed | 2024-03-09T16:03:13Z |
| format | Article |
| id | doaj.art-5c7b409716574f369b50151d458b16a7 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T16:03:13Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-5c7b409716574f369b50151d458b16a72023-11-24T16:55:23ZengMDPI AGMolecules1420-30492022-12-012724866810.3390/molecules27248668Surface-Treated Recycling Fibers from Wind Turbine Blades as Reinforcement for Waste PhosphogypsumLilin Yang0Weilin Zhao1Daobei Wang2Yang Liu3Dongzhi Wang4Na Cui5School of Materials Science and Engineering, University of Jinan, Jinan 250000, ChinaSchool of Materials Science and Engineering, University of Jinan, Jinan 250000, ChinaSchool of Materials Science and Engineering, University of Jinan, Jinan 250000, ChinaSchool of Materials Science and Engineering, University of Jinan, Jinan 250000, ChinaSchool of Materials Science and Engineering, University of Jinan, Jinan 250000, ChinaSchool of Civil Engineering and Architecture, University of Jinan, Jinan 250000, ChinaAn attempt at the treatment of the waste fiber (WF) from the wind turbine blade (WTB) was made through the modifier of dopamine hydrochloride and the compound modifier of dopamine hydrochloride and 2,5-dihydroxy terephthalic acid or 3,4-dihydroxy cinnamic acid or 3,4-dihydroxy benzonitrile, corresponding to obtain four modified waste fibers (MWF1, MWF2, MWF3, and MWF4). The MWFs samples’ microstructure properties were characterized using SEM, EDS, XPS, FTIR analyses, and water contact angle tests. The results revealed that all the MWF surfaces were wrapped by a distinct coating layer and had different elemental compositions and chemical groups, demonstrating the significant effect of the four modifications on the WF surfaces. The hydroxyl, amino, or nitrile groups were grafted onto the WF surfaces causing improvement of the hydrophilicity and reactivity. Furthermore, all the MWFs as the reinforced materials were incorporated into the industrial waste phosphogypsum (PG) to manufacture the phosphorous-building gypsum composites (PBGC). The effects on the micro-morphology and mechanical properties of the PBGC were evaluated. The results also show the improvement in flexural and compressive strength with the addition of MWFs into the PBGC, due to the enhancement of the compactness between the MWF and phosphogypsum matrix. In particular, the effects of three compound modifiers on the flexural and compressive strength are more significant. The highest flexural and compressive strength was contributed by the PBGC-MWF4 with 2% dosage using a compound modifier of dopamine hydrochloride and 3,4-dihydroxy benzonitrile, which were enhanced 61.04% and 25.97% compared with the PBG.https://www.mdpi.com/1420-3049/27/24/8668waste fiberwind turbine bladephosphogypsumsurface treatment |
| spellingShingle | Lilin Yang Weilin Zhao Daobei Wang Yang Liu Dongzhi Wang Na Cui Surface-Treated Recycling Fibers from Wind Turbine Blades as Reinforcement for Waste Phosphogypsum Molecules waste fiber wind turbine blade phosphogypsum surface treatment |
| title | Surface-Treated Recycling Fibers from Wind Turbine Blades as Reinforcement for Waste Phosphogypsum |
| title_full | Surface-Treated Recycling Fibers from Wind Turbine Blades as Reinforcement for Waste Phosphogypsum |
| title_fullStr | Surface-Treated Recycling Fibers from Wind Turbine Blades as Reinforcement for Waste Phosphogypsum |
| title_full_unstemmed | Surface-Treated Recycling Fibers from Wind Turbine Blades as Reinforcement for Waste Phosphogypsum |
| title_short | Surface-Treated Recycling Fibers from Wind Turbine Blades as Reinforcement for Waste Phosphogypsum |
| title_sort | surface treated recycling fibers from wind turbine blades as reinforcement for waste phosphogypsum |
| topic | waste fiber wind turbine blade phosphogypsum surface treatment |
| url | https://www.mdpi.com/1420-3049/27/24/8668 |
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