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A platform for research: civil engineering, architecture and urbanism
Modified graphene oxide dispersion liquid and modified cement mortar as well as preparation method and application thereof
The invention belongs to the technical field of building materials, and relates to a modified graphene oxide dispersion liquid and modified cement mortar as well as a preparation method and application thereof. The modified graphene oxide dispersion liquid comprises silane modified graphene oxide, sodium cholate and water, the silane modified graphene oxide is prepared by reacting graphene oxide with alkenyl silane in the presence of an organic solvent. The preparation method is characterized in that graphene oxide is synergistically modified by adding alkenyl silane and sodium cholate, so that the obtained modified graphene oxide dispersion liquid can keep good dispersity in a high-alkali and high-calcium cement-based material environment, and the problem that graphene oxide is easy to coagulate in the high-alkali and high-calcium environment is solved; therefore, the compressive strength, breaking strength and other properties of the cement mortar material added with the modified graphene oxide dispersion liquid are remarkably improved.
本发明属于建筑材料技术领域，涉及一种改性氧化石墨烯分散液和改性水泥砂浆及其制备方法和应用。该改性氧化石墨烯分散液包括硅烷改性氧化石墨烯、胆酸钠和水；所述硅烷改性氧化石墨烯是由氧化石墨烯与烯基硅烷在有机溶剂存在下反应制备得到。本发明的关键在于通过添加烯基硅烷和胆酸钠对氧化石墨烯进行协同改性，由此得到的改性氧化石墨烯分散液在高碱高钙的水泥基材料环境中能够保持良好的分散性，克服氧化石墨烯在高碱高钙环境中容易聚沉的问题，从而对添加了该改性氧化石墨烯分散液的水泥砂浆材料的抗压强度、抗折强度等性能具有显著的改善提升作用。
Modified graphene oxide dispersion liquid and modified cement mortar as well as preparation method and application thereof
The invention belongs to the technical field of building materials, and relates to a modified graphene oxide dispersion liquid and modified cement mortar as well as a preparation method and application thereof. The modified graphene oxide dispersion liquid comprises silane modified graphene oxide, sodium cholate and water, the silane modified graphene oxide is prepared by reacting graphene oxide with alkenyl silane in the presence of an organic solvent. The preparation method is characterized in that graphene oxide is synergistically modified by adding alkenyl silane and sodium cholate, so that the obtained modified graphene oxide dispersion liquid can keep good dispersity in a high-alkali and high-calcium cement-based material environment, and the problem that graphene oxide is easy to coagulate in the high-alkali and high-calcium environment is solved; therefore, the compressive strength, breaking strength and other properties of the cement mortar material added with the modified graphene oxide dispersion liquid are remarkably improved.
本发明属于建筑材料技术领域，涉及一种改性氧化石墨烯分散液和改性水泥砂浆及其制备方法和应用。该改性氧化石墨烯分散液包括硅烷改性氧化石墨烯、胆酸钠和水；所述硅烷改性氧化石墨烯是由氧化石墨烯与烯基硅烷在有机溶剂存在下反应制备得到。本发明的关键在于通过添加烯基硅烷和胆酸钠对氧化石墨烯进行协同改性，由此得到的改性氧化石墨烯分散液在高碱高钙的水泥基材料环境中能够保持良好的分散性，克服氧化石墨烯在高碱高钙环境中容易聚沉的问题，从而对添加了该改性氧化石墨烯分散液的水泥砂浆材料的抗压强度、抗折强度等性能具有显著的改善提升作用。
Modified graphene oxide dispersion liquid and modified cement mortar as well as preparation method and application thereof
一种改性氧化石墨烯分散液和改性水泥砂浆及其制备方法和应用
WANG YAN (author) / YANG JI (author) / GUO ZHIWEI (author) / ZHAO ZHONGYU (author) / SONG SHUO (author) / CHEN JINXU (author) / HONG CONGBIN (author) / ZHANG ZONGHE (author)
2024-09-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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