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Rubber powder polymer grafted block copolymer composite modified asphalt as well as preparation method and regeneration application thereof
The invention discloses rubber powder polymer grafted block copolymer composite modified asphalt as well as a preparation method and regeneration application thereof, and belongs to the technical field of road engineering materials. The composite modifier disclosed by the invention is formed by grafting a rubber powder polymer modified by a fluorescent amino group and a functional block copolymer. Amino groups on the surface of the fluorescent amino group modified rubber powder and anhydride groups on the surface of a copolymer are subjected to an esterification reaction, so that the surface of the obtained composite modifier has rich functional groups, and the composite modifier and asphalt components are subjected to a chemical cross-linking reaction during preparation of modified asphalt, so that the high-temperature stability and low-temperature crack resistance of the modified asphalt are improved, and the service life of the modified asphalt is prolonged. And the overall performance is ensured. The regenerated mixture prepared from the composite modified asphalt can improve the overall pavement performance in practical application, effectively improve the rutting resistance, freeze-thaw resistance and water stability of the road pavement, save the construction cost, effectively reduce the environmental pollution, and have high application value.
本发明公开了一种胶粉聚合物接枝嵌段共聚物复合改性沥青、其制备方法及再生应用，属于道路工程材料技术领域。本发明所述的复合改性剂由荧光氨基基团修饰的胶粉聚合物和功能化嵌段共聚物接枝而成。本发明通过荧光氨基基团修饰胶粉的表面氨基与共聚物表面的酸酐基团发生酯化反应，使得到的复合改性剂表面具有丰富的功能基团，从而在制备改性沥青时与沥青组分发生化学交联反应，以提高改性沥青的高温稳定性与低温抗裂性，保证其整体性能。利用所述复合改性沥青制备得到的再生混合料，可在实际应用中改善整体路用性能，有效提高道路路面的抗车辙性能、抗冻融性以及水稳定性，不仅节约了施工成本，还能够有效减少环境污染，具有较高的应用价值。
Rubber powder polymer grafted block copolymer composite modified asphalt as well as preparation method and regeneration application thereof
The invention discloses rubber powder polymer grafted block copolymer composite modified asphalt as well as a preparation method and regeneration application thereof, and belongs to the technical field of road engineering materials. The composite modifier disclosed by the invention is formed by grafting a rubber powder polymer modified by a fluorescent amino group and a functional block copolymer. Amino groups on the surface of the fluorescent amino group modified rubber powder and anhydride groups on the surface of a copolymer are subjected to an esterification reaction, so that the surface of the obtained composite modifier has rich functional groups, and the composite modifier and asphalt components are subjected to a chemical cross-linking reaction during preparation of modified asphalt, so that the high-temperature stability and low-temperature crack resistance of the modified asphalt are improved, and the service life of the modified asphalt is prolonged. And the overall performance is ensured. The regenerated mixture prepared from the composite modified asphalt can improve the overall pavement performance in practical application, effectively improve the rutting resistance, freeze-thaw resistance and water stability of the road pavement, save the construction cost, effectively reduce the environmental pollution, and have high application value.
本发明公开了一种胶粉聚合物接枝嵌段共聚物复合改性沥青、其制备方法及再生应用，属于道路工程材料技术领域。本发明所述的复合改性剂由荧光氨基基团修饰的胶粉聚合物和功能化嵌段共聚物接枝而成。本发明通过荧光氨基基团修饰胶粉的表面氨基与共聚物表面的酸酐基团发生酯化反应，使得到的复合改性剂表面具有丰富的功能基团，从而在制备改性沥青时与沥青组分发生化学交联反应，以提高改性沥青的高温稳定性与低温抗裂性，保证其整体性能。利用所述复合改性沥青制备得到的再生混合料，可在实际应用中改善整体路用性能，有效提高道路路面的抗车辙性能、抗冻融性以及水稳定性，不仅节约了施工成本，还能够有效减少环境污染，具有较高的应用价值。
Rubber powder polymer grafted block copolymer composite modified asphalt as well as preparation method and regeneration application thereof
一种胶粉聚合物接枝嵌段共聚物复合改性沥青、其制备方法及再生应用
DING YONGLING (author) / SUN HUADONG (author) / PANG LAIXUE (author) / TANG YIJUN (author) / SUN XIN (author) / GAN WANG (author) / DU ZHUHENG (author) / YUAN JIACHENG (author)
2024-06-07
Patent
Electronic Resource
Chinese
IPC:
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C04B
Kalk
,
LIME
/
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
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