Modification of Asphalt Modified by Packaging Waste EVA and Graphene Oxide
A composite modifier made from waste ethylene-vinyl acetate copolymer (WEVA) and graphene oxide (GO) is used to modify asphalt used to pave the roadway. At the same time, the effect of GO on the related properties of modified composite asphalt is investigated in terms of softening point, penetration...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2022-04-01
|
| Series: | Frontiers in Materials |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fmats.2022.833593/full |
| _version_ | 1811272478383669248 |
|---|---|
| author | Maorong Zhang Chao Lian Junyuan Wang Hongfu Wang Bo Cheng |
| author_facet | Maorong Zhang Chao Lian Junyuan Wang Hongfu Wang Bo Cheng |
| author_sort | Maorong Zhang |
| collection | DOAJ |
| description | A composite modifier made from waste ethylene-vinyl acetate copolymer (WEVA) and graphene oxide (GO) is used to modify asphalt used to pave the roadway. At the same time, the effect of GO on the related properties of modified composite asphalt is investigated in terms of softening point, penetration, ductility, as well as distribution. The preparation of the composite modifier can reduce the modification’s complexity and enhance the modifier’s dispersion in the asphalt system in the storage phase. By increasing WEVA and GO contents, the softening point of modified composite asphalt increases, and both the penetration and ductility decrease. It is proved that the high-temperature performance of composite asphalt modified by WEVA and GO is better than that of modified asphalt with WEVA. The distribution characteristics of modified asphalt on a fluorescence microscope show that by adding more GO, we get a more even and smaller “bee structure” asphalt system. It indicates that GO can promote dispersion and stop the aggregation of WEVA. The FTIR spectrum results show that the composite modification by adding WEVA and GO is a physical modification, indicating GO can physically prevent the aggregation of the polymers in the storage phase. We present a schematic of the effect on GO and WEVA in asphalt modification to show the improvement in the distribution of the asphalt system from GO. In all, this study provides an idea for the preparation of modified composite asphalt and the application of nano-materials. |
| first_indexed | 2024-04-12T22:41:01Z |
| format | Article |
| id | doaj.art-f4af3dc3938b4072945ae9b20de251b2 |
| institution | Directory Open Access Journal |
| issn | 2296-8016 |
| language | English |
| last_indexed | 2024-04-12T22:41:01Z |
| publishDate | 2022-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Materials |
| spelling | doaj.art-f4af3dc3938b4072945ae9b20de251b22022-12-22T03:13:43ZengFrontiers Media S.A.Frontiers in Materials2296-80162022-04-01910.3389/fmats.2022.833593833593Modification of Asphalt Modified by Packaging Waste EVA and Graphene OxideMaorong ZhangChao LianJunyuan WangHongfu WangBo ChengA composite modifier made from waste ethylene-vinyl acetate copolymer (WEVA) and graphene oxide (GO) is used to modify asphalt used to pave the roadway. At the same time, the effect of GO on the related properties of modified composite asphalt is investigated in terms of softening point, penetration, ductility, as well as distribution. The preparation of the composite modifier can reduce the modification’s complexity and enhance the modifier’s dispersion in the asphalt system in the storage phase. By increasing WEVA and GO contents, the softening point of modified composite asphalt increases, and both the penetration and ductility decrease. It is proved that the high-temperature performance of composite asphalt modified by WEVA and GO is better than that of modified asphalt with WEVA. The distribution characteristics of modified asphalt on a fluorescence microscope show that by adding more GO, we get a more even and smaller “bee structure” asphalt system. It indicates that GO can promote dispersion and stop the aggregation of WEVA. The FTIR spectrum results show that the composite modification by adding WEVA and GO is a physical modification, indicating GO can physically prevent the aggregation of the polymers in the storage phase. We present a schematic of the effect on GO and WEVA in asphalt modification to show the improvement in the distribution of the asphalt system from GO. In all, this study provides an idea for the preparation of modified composite asphalt and the application of nano-materials.https://www.frontiersin.org/articles/10.3389/fmats.2022.833593/fullasphaltgraphene oxideperformancedispersibilityWEVA |
| spellingShingle | Maorong Zhang Chao Lian Junyuan Wang Hongfu Wang Bo Cheng Modification of Asphalt Modified by Packaging Waste EVA and Graphene Oxide Frontiers in Materials asphalt graphene oxide performance dispersibility WEVA |
| title | Modification of Asphalt Modified by Packaging Waste EVA and Graphene Oxide |
| title_full | Modification of Asphalt Modified by Packaging Waste EVA and Graphene Oxide |
| title_fullStr | Modification of Asphalt Modified by Packaging Waste EVA and Graphene Oxide |
| title_full_unstemmed | Modification of Asphalt Modified by Packaging Waste EVA and Graphene Oxide |
| title_short | Modification of Asphalt Modified by Packaging Waste EVA and Graphene Oxide |
| title_sort | modification of asphalt modified by packaging waste eva and graphene oxide |
| topic | asphalt graphene oxide performance dispersibility WEVA |
| url | https://www.frontiersin.org/articles/10.3389/fmats.2022.833593/full |
| work_keys_str_mv | AT maorongzhang modificationofasphaltmodifiedbypackagingwasteevaandgrapheneoxide AT chaolian modificationofasphaltmodifiedbypackagingwasteevaandgrapheneoxide AT junyuanwang modificationofasphaltmodifiedbypackagingwasteevaandgrapheneoxide AT hongfuwang modificationofasphaltmodifiedbypackagingwasteevaandgrapheneoxide AT bocheng modificationofasphaltmodifiedbypackagingwasteevaandgrapheneoxide |