A transesterification-based epoxy vitrimer synthesis enabled high crack self-healing efficiency to fibrous composites
Adipic acid was grafted onto a general epoxy resin and then crosslinked with a primary amine to synthesize a novel remenable epoxy vitrimer (EPV). Also, carbon nanotubes were added into EPV to obtain reinforced EPVC. Results reveal that EPV and EPVC show good self-healing efficiencies to their respe...
Ausführliche Beschreibung
Autor*in: |
Wu, Pan [verfasserIn] Liu, Ling [verfasserIn] Wu, Zhanjun [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2022 |
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Schlagwörter: |
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Übergeordnetes Werk: |
Enthalten in: Composites / A - Amsterdam [u.a.] : Elsevier, 1996, 162 |
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Übergeordnetes Werk: |
volume:162 |
DOI / URN: |
10.1016/j.compositesa.2022.107170 |
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Katalog-ID: |
ELV009700617 |
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520 | |a Adipic acid was grafted onto a general epoxy resin and then crosslinked with a primary amine to synthesize a novel remenable epoxy vitrimer (EPV). Also, carbon nanotubes were added into EPV to obtain reinforced EPVC. Results reveal that EPV and EPVC show good self-healing efficiencies to their respective cracks, i.e. 74–77 % to fracture toughness and 62–67 % to tensile strength. But EPVC shows higher toughness and strength, respectively increased by 80 % and 3.2 % when compared with EPV. Also, the obtained fibrous composites are resistant to low temperature and the increased crack density is only 0.02 % after soaking in liquid nitrogen for 20 days, which can be completely healed by thermal activation. Moreover, EPV and EPVC-based laminates show a self-healing efficiency greater than 100 % to interlaminar toughness and strength after two loading-healing cycles. The EPVC laminate also has higher initial mechanical properties. Thus, the synthesized EPV/EPVC is potential in preparing self-healing structural composites. | ||
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10.1016/j.compositesa.2022.107170 doi (DE-627)ELV009700617 (ELSEVIER)S1359-835X(22)00352-9 DE-627 ger DE-627 rda eng 660 VZ 51.75 bkl Wu, Pan verfasserin aut A transesterification-based epoxy vitrimer synthesis enabled high crack self-healing efficiency to fibrous composites 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Adipic acid was grafted onto a general epoxy resin and then crosslinked with a primary amine to synthesize a novel remenable epoxy vitrimer (EPV). Also, carbon nanotubes were added into EPV to obtain reinforced EPVC. Results reveal that EPV and EPVC show good self-healing efficiencies to their respective cracks, i.e. 74–77 % to fracture toughness and 62–67 % to tensile strength. But EPVC shows higher toughness and strength, respectively increased by 80 % and 3.2 % when compared with EPV. Also, the obtained fibrous composites are resistant to low temperature and the increased crack density is only 0.02 % after soaking in liquid nitrogen for 20 days, which can be completely healed by thermal activation. Moreover, EPV and EPVC-based laminates show a self-healing efficiency greater than 100 % to interlaminar toughness and strength after two loading-healing cycles. The EPVC laminate also has higher initial mechanical properties. Thus, the synthesized EPV/EPVC is potential in preparing self-healing structural composites. A.Multifunctional composites A.Laminate B. Delamination B. Self-healing Liu, Ling verfasserin aut Wu, Zhanjun verfasserin aut Enthalten in Composites / A Amsterdam [u.a.] : Elsevier, 1996 162 Online-Ressource (DE-627)320501078 (DE-600)2012223-8 (DE-576)094531404 nnns volume:162 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2411 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.75 Verbundwerkstoffe Schichtstoffe VZ AR 162 |
spelling |
10.1016/j.compositesa.2022.107170 doi (DE-627)ELV009700617 (ELSEVIER)S1359-835X(22)00352-9 DE-627 ger DE-627 rda eng 660 VZ 51.75 bkl Wu, Pan verfasserin aut A transesterification-based epoxy vitrimer synthesis enabled high crack self-healing efficiency to fibrous composites 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Adipic acid was grafted onto a general epoxy resin and then crosslinked with a primary amine to synthesize a novel remenable epoxy vitrimer (EPV). Also, carbon nanotubes were added into EPV to obtain reinforced EPVC. Results reveal that EPV and EPVC show good self-healing efficiencies to their respective cracks, i.e. 74–77 % to fracture toughness and 62–67 % to tensile strength. But EPVC shows higher toughness and strength, respectively increased by 80 % and 3.2 % when compared with EPV. Also, the obtained fibrous composites are resistant to low temperature and the increased crack density is only 0.02 % after soaking in liquid nitrogen for 20 days, which can be completely healed by thermal activation. Moreover, EPV and EPVC-based laminates show a self-healing efficiency greater than 100 % to interlaminar toughness and strength after two loading-healing cycles. The EPVC laminate also has higher initial mechanical properties. Thus, the synthesized EPV/EPVC is potential in preparing self-healing structural composites. A.Multifunctional composites A.Laminate B. Delamination B. Self-healing Liu, Ling verfasserin aut Wu, Zhanjun verfasserin aut Enthalten in Composites / A Amsterdam [u.a.] : Elsevier, 1996 162 Online-Ressource (DE-627)320501078 (DE-600)2012223-8 (DE-576)094531404 nnns volume:162 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2411 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.75 Verbundwerkstoffe Schichtstoffe VZ AR 162 |
allfields_unstemmed |
10.1016/j.compositesa.2022.107170 doi (DE-627)ELV009700617 (ELSEVIER)S1359-835X(22)00352-9 DE-627 ger DE-627 rda eng 660 VZ 51.75 bkl Wu, Pan verfasserin aut A transesterification-based epoxy vitrimer synthesis enabled high crack self-healing efficiency to fibrous composites 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Adipic acid was grafted onto a general epoxy resin and then crosslinked with a primary amine to synthesize a novel remenable epoxy vitrimer (EPV). Also, carbon nanotubes were added into EPV to obtain reinforced EPVC. Results reveal that EPV and EPVC show good self-healing efficiencies to their respective cracks, i.e. 74–77 % to fracture toughness and 62–67 % to tensile strength. But EPVC shows higher toughness and strength, respectively increased by 80 % and 3.2 % when compared with EPV. Also, the obtained fibrous composites are resistant to low temperature and the increased crack density is only 0.02 % after soaking in liquid nitrogen for 20 days, which can be completely healed by thermal activation. Moreover, EPV and EPVC-based laminates show a self-healing efficiency greater than 100 % to interlaminar toughness and strength after two loading-healing cycles. The EPVC laminate also has higher initial mechanical properties. Thus, the synthesized EPV/EPVC is potential in preparing self-healing structural composites. A.Multifunctional composites A.Laminate B. Delamination B. Self-healing Liu, Ling verfasserin aut Wu, Zhanjun verfasserin aut Enthalten in Composites / A Amsterdam [u.a.] : Elsevier, 1996 162 Online-Ressource (DE-627)320501078 (DE-600)2012223-8 (DE-576)094531404 nnns volume:162 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2411 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.75 Verbundwerkstoffe Schichtstoffe VZ AR 162 |
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10.1016/j.compositesa.2022.107170 doi (DE-627)ELV009700617 (ELSEVIER)S1359-835X(22)00352-9 DE-627 ger DE-627 rda eng 660 VZ 51.75 bkl Wu, Pan verfasserin aut A transesterification-based epoxy vitrimer synthesis enabled high crack self-healing efficiency to fibrous composites 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Adipic acid was grafted onto a general epoxy resin and then crosslinked with a primary amine to synthesize a novel remenable epoxy vitrimer (EPV). Also, carbon nanotubes were added into EPV to obtain reinforced EPVC. Results reveal that EPV and EPVC show good self-healing efficiencies to their respective cracks, i.e. 74–77 % to fracture toughness and 62–67 % to tensile strength. But EPVC shows higher toughness and strength, respectively increased by 80 % and 3.2 % when compared with EPV. Also, the obtained fibrous composites are resistant to low temperature and the increased crack density is only 0.02 % after soaking in liquid nitrogen for 20 days, which can be completely healed by thermal activation. Moreover, EPV and EPVC-based laminates show a self-healing efficiency greater than 100 % to interlaminar toughness and strength after two loading-healing cycles. The EPVC laminate also has higher initial mechanical properties. Thus, the synthesized EPV/EPVC is potential in preparing self-healing structural composites. A.Multifunctional composites A.Laminate B. Delamination B. Self-healing Liu, Ling verfasserin aut Wu, Zhanjun verfasserin aut Enthalten in Composites / A Amsterdam [u.a.] : Elsevier, 1996 162 Online-Ressource (DE-627)320501078 (DE-600)2012223-8 (DE-576)094531404 nnns volume:162 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2411 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.75 Verbundwerkstoffe Schichtstoffe VZ AR 162 |
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10.1016/j.compositesa.2022.107170 doi (DE-627)ELV009700617 (ELSEVIER)S1359-835X(22)00352-9 DE-627 ger DE-627 rda eng 660 VZ 51.75 bkl Wu, Pan verfasserin aut A transesterification-based epoxy vitrimer synthesis enabled high crack self-healing efficiency to fibrous composites 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Adipic acid was grafted onto a general epoxy resin and then crosslinked with a primary amine to synthesize a novel remenable epoxy vitrimer (EPV). Also, carbon nanotubes were added into EPV to obtain reinforced EPVC. Results reveal that EPV and EPVC show good self-healing efficiencies to their respective cracks, i.e. 74–77 % to fracture toughness and 62–67 % to tensile strength. But EPVC shows higher toughness and strength, respectively increased by 80 % and 3.2 % when compared with EPV. Also, the obtained fibrous composites are resistant to low temperature and the increased crack density is only 0.02 % after soaking in liquid nitrogen for 20 days, which can be completely healed by thermal activation. Moreover, EPV and EPVC-based laminates show a self-healing efficiency greater than 100 % to interlaminar toughness and strength after two loading-healing cycles. The EPVC laminate also has higher initial mechanical properties. Thus, the synthesized EPV/EPVC is potential in preparing self-healing structural composites. A.Multifunctional composites A.Laminate B. Delamination B. Self-healing Liu, Ling verfasserin aut Wu, Zhanjun verfasserin aut Enthalten in Composites / A Amsterdam [u.a.] : Elsevier, 1996 162 Online-Ressource (DE-627)320501078 (DE-600)2012223-8 (DE-576)094531404 nnns volume:162 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2411 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.75 Verbundwerkstoffe Schichtstoffe VZ AR 162 |
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A transesterification-based epoxy vitrimer synthesis enabled high crack self-healing efficiency to fibrous composites |
author_sort |
Wu, Pan |
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Composites / A |
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Composites / A |
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eng |
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600 - Technology |
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2022 |
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zzz |
author_browse |
Wu, Pan Liu, Ling Wu, Zhanjun |
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Elektronische Aufsätze |
author-letter |
Wu, Pan |
doi_str_mv |
10.1016/j.compositesa.2022.107170 |
dewey-full |
660 |
author2-role |
verfasserin |
title_sort |
a transesterification-based epoxy vitrimer synthesis enabled high crack self-healing efficiency to fibrous composites |
title_auth |
A transesterification-based epoxy vitrimer synthesis enabled high crack self-healing efficiency to fibrous composites |
abstract |
Adipic acid was grafted onto a general epoxy resin and then crosslinked with a primary amine to synthesize a novel remenable epoxy vitrimer (EPV). Also, carbon nanotubes were added into EPV to obtain reinforced EPVC. Results reveal that EPV and EPVC show good self-healing efficiencies to their respective cracks, i.e. 74–77 % to fracture toughness and 62–67 % to tensile strength. But EPVC shows higher toughness and strength, respectively increased by 80 % and 3.2 % when compared with EPV. Also, the obtained fibrous composites are resistant to low temperature and the increased crack density is only 0.02 % after soaking in liquid nitrogen for 20 days, which can be completely healed by thermal activation. Moreover, EPV and EPVC-based laminates show a self-healing efficiency greater than 100 % to interlaminar toughness and strength after two loading-healing cycles. The EPVC laminate also has higher initial mechanical properties. Thus, the synthesized EPV/EPVC is potential in preparing self-healing structural composites. |
abstractGer |
Adipic acid was grafted onto a general epoxy resin and then crosslinked with a primary amine to synthesize a novel remenable epoxy vitrimer (EPV). Also, carbon nanotubes were added into EPV to obtain reinforced EPVC. Results reveal that EPV and EPVC show good self-healing efficiencies to their respective cracks, i.e. 74–77 % to fracture toughness and 62–67 % to tensile strength. But EPVC shows higher toughness and strength, respectively increased by 80 % and 3.2 % when compared with EPV. Also, the obtained fibrous composites are resistant to low temperature and the increased crack density is only 0.02 % after soaking in liquid nitrogen for 20 days, which can be completely healed by thermal activation. Moreover, EPV and EPVC-based laminates show a self-healing efficiency greater than 100 % to interlaminar toughness and strength after two loading-healing cycles. The EPVC laminate also has higher initial mechanical properties. Thus, the synthesized EPV/EPVC is potential in preparing self-healing structural composites. |
abstract_unstemmed |
Adipic acid was grafted onto a general epoxy resin and then crosslinked with a primary amine to synthesize a novel remenable epoxy vitrimer (EPV). Also, carbon nanotubes were added into EPV to obtain reinforced EPVC. Results reveal that EPV and EPVC show good self-healing efficiencies to their respective cracks, i.e. 74–77 % to fracture toughness and 62–67 % to tensile strength. But EPVC shows higher toughness and strength, respectively increased by 80 % and 3.2 % when compared with EPV. Also, the obtained fibrous composites are resistant to low temperature and the increased crack density is only 0.02 % after soaking in liquid nitrogen for 20 days, which can be completely healed by thermal activation. Moreover, EPV and EPVC-based laminates show a self-healing efficiency greater than 100 % to interlaminar toughness and strength after two loading-healing cycles. The EPVC laminate also has higher initial mechanical properties. Thus, the synthesized EPV/EPVC is potential in preparing self-healing structural composites. |
collection_details |
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title_short |
A transesterification-based epoxy vitrimer synthesis enabled high crack self-healing efficiency to fibrous composites |
remote_bool |
true |
author2 |
Liu, Ling Wu, Zhanjun |
author2Str |
Liu, Ling Wu, Zhanjun |
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isOA_txt |
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doi_str |
10.1016/j.compositesa.2022.107170 |
up_date |
2024-07-07T00:03:31.119Z |
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