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A platform for research: civil engineering, architecture and urbanism
Graphene oxide dispersion liquid as well as preparation method and application thereof
The present invention provides a graphene oxide dispersion liquid, which comprises pure water, graphene oxide, a polycarboxylate superplasticizer component and humic acid, and the mass of the pure water is greater than the mass of the polycarboxylate superplasticizer, the mass of the polycarboxylate superplasticizer is greater than the mass of the graphene oxide or the humic acid. According to thehigh-dispersity graphene oxide dispersion liquid provided by the invention, stable dispersion of the graphene oxide can be remarkably improved in a high-calcium and high-alkalinity environment, and high dispersity of the graphene oxide dispersion liquid can still be guaranteed; the mechanical property of mortar can be obviously improved by blending the dispersion liquid with the cement mortar, and the 28-day flexural strength and compressive strength can be greatly improved. The invention further provides a preparation method of the graphene oxide dispersion liquid, and advanced coagulation of the graphene oxide is prevented, so that the graphene oxide dispersion liquid with relatively high dispersity is prepared.
本发明提出了一种氧化石墨烯分散液，包括：纯水、氧化石墨烯、聚羧酸减水剂份以及腐殖酸，所述纯水的质量>所述聚羧酸减水剂的质量>所述氧化石墨烯或所述腐殖酸的质量。本申请提供的高分散性的氧化石墨烯分散液，在高钙高碱性的环境中能显著增加氧化石墨烯的稳定分散，仍能保证氧化石墨烯分散液具备较高的分散性；而使用此分散液掺配水泥砂浆能够明显提高砂浆的力学性能，能大幅度提升28天抗折与抗压强度。本申请还提供了该氧化石墨烯分散液的制备方法，防止氧化石墨烯提前聚沉，从而制备出具备较高的分散性的氧化石墨烯分散液。
Graphene oxide dispersion liquid as well as preparation method and application thereof
The present invention provides a graphene oxide dispersion liquid, which comprises pure water, graphene oxide, a polycarboxylate superplasticizer component and humic acid, and the mass of the pure water is greater than the mass of the polycarboxylate superplasticizer, the mass of the polycarboxylate superplasticizer is greater than the mass of the graphene oxide or the humic acid. According to thehigh-dispersity graphene oxide dispersion liquid provided by the invention, stable dispersion of the graphene oxide can be remarkably improved in a high-calcium and high-alkalinity environment, and high dispersity of the graphene oxide dispersion liquid can still be guaranteed; the mechanical property of mortar can be obviously improved by blending the dispersion liquid with the cement mortar, and the 28-day flexural strength and compressive strength can be greatly improved. The invention further provides a preparation method of the graphene oxide dispersion liquid, and advanced coagulation of the graphene oxide is prevented, so that the graphene oxide dispersion liquid with relatively high dispersity is prepared.
本发明提出了一种氧化石墨烯分散液，包括：纯水、氧化石墨烯、聚羧酸减水剂份以及腐殖酸，所述纯水的质量>所述聚羧酸减水剂的质量>所述氧化石墨烯或所述腐殖酸的质量。本申请提供的高分散性的氧化石墨烯分散液，在高钙高碱性的环境中能显著增加氧化石墨烯的稳定分散，仍能保证氧化石墨烯分散液具备较高的分散性；而使用此分散液掺配水泥砂浆能够明显提高砂浆的力学性能，能大幅度提升28天抗折与抗压强度。本申请还提供了该氧化石墨烯分散液的制备方法，防止氧化石墨烯提前聚沉，从而制备出具备较高的分散性的氧化石墨烯分散液。
Graphene oxide dispersion liquid as well as preparation method and application thereof
一种氧化石墨烯分散液及其制备方法和应用
YUAN XIAOYA (author) / GAO JUN (author) / LIN HUANGZHI (author)
2020-07-10
Patent
Electronic Resource
Chinese
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