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A platform for research: civil engineering, architecture and urbanism
Modified carbon nanotube concrete and preparation method thereof
The invention provides modified carbon nanotube concrete and a preparation method thereof. The modified carbon nanotube concrete comprises a cement cementing material and a dispersion liquid of composite modified carbon nanotubes, wherein the doping amount of the composite modified carbon nanotubes is 0.1-2.0% of the cement cementing material, and the composite modified carbon nanotubes are carbonnanotubes of which the surfaces are non-covalently compositely modified with a layer of hydrophilic amino acids. Based on the hydrophilic and calcium-philic characteristics of amino acid, the amino acid is compounded on the surface of carbon nanotubes by a non-covalent compound modification method, so that the surface hydrophilicity of the carbon nanotubes is improved on the basis of not damagingthe surface structure of the carbon nanotubes, the dispersion state of the carbon nanotubes is stabilized, early hydration is promoted, and the enhancement of the mechanical property of concrete is facilitated.
本发明提供一种改性碳纳米管混凝土及其制备方法，包括水泥胶凝材料和复合改性的碳纳米管的分散液，其中，复合改性的碳纳米管的掺杂量为水泥胶凝材料的0.1‑2.0％，所述复合改性的碳纳米管为表面非共价地复合修饰有一层亲水性氨基酸的碳纳米管。本申请基于氨基酸亲水亲钙的特性，以非共价复合修饰的方法，将其复合在碳纳米管表面，在不损伤碳纳米管表面结构的基础上提高纳米管的表面亲水性，并且稳定其分散状态，同时促进早期水化，利于混凝土力学性能的增强。
Modified carbon nanotube concrete and preparation method thereof
The invention provides modified carbon nanotube concrete and a preparation method thereof. The modified carbon nanotube concrete comprises a cement cementing material and a dispersion liquid of composite modified carbon nanotubes, wherein the doping amount of the composite modified carbon nanotubes is 0.1-2.0% of the cement cementing material, and the composite modified carbon nanotubes are carbonnanotubes of which the surfaces are non-covalently compositely modified with a layer of hydrophilic amino acids. Based on the hydrophilic and calcium-philic characteristics of amino acid, the amino acid is compounded on the surface of carbon nanotubes by a non-covalent compound modification method, so that the surface hydrophilicity of the carbon nanotubes is improved on the basis of not damagingthe surface structure of the carbon nanotubes, the dispersion state of the carbon nanotubes is stabilized, early hydration is promoted, and the enhancement of the mechanical property of concrete is facilitated.
本发明提供一种改性碳纳米管混凝土及其制备方法，包括水泥胶凝材料和复合改性的碳纳米管的分散液，其中，复合改性的碳纳米管的掺杂量为水泥胶凝材料的0.1‑2.0％，所述复合改性的碳纳米管为表面非共价地复合修饰有一层亲水性氨基酸的碳纳米管。本申请基于氨基酸亲水亲钙的特性，以非共价复合修饰的方法，将其复合在碳纳米管表面，在不损伤碳纳米管表面结构的基础上提高纳米管的表面亲水性，并且稳定其分散状态，同时促进早期水化，利于混凝土力学性能的增强。
Modified carbon nanotube concrete and preparation method thereof
一种改性碳纳米管混凝土及其制备方法
YANG YONGMIN (author) / YANG ZHICHENG (author) / LYU JIANGEN (author) / ZHUO XIANRONG (author)
2020-07-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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