Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Nanometer crystal nucleus enhanced starch-based thixotropic agent as well as preparation method and application thereof
The invention provides a nanocrystal nucleus enhanced starch-based thixotropic agent as well as a preparation method and application thereof. The starch-based thixotropic agent comprises the following raw material components in percentage by mass: 0.2-0.8% of a nanocrystal nucleus material, 15-30% of modified carboxymethyl starch ether, 20-40% of cellulose ether, 1.5-3% of a dispersing aid, 0.5-2% of a rheological stabilizer and the balance of water. Hydrophobic groups are introduced into carboxymethyl starch ether through an etherification reaction, a hydrophobic association area is increased, the emulsibility, the surface activity and the smoothness degree are improved, and dispersion of a nanocrystal nucleus material can be further promoted. When the nanocrystal nucleus enhanced starch-based thixotropic agent provided by the invention is doped into a cement-based material, the thixotropy can be remarkably improved, particularly, the smoothness is improved in the construction process so as to facilitate construction, and the development of early strength is promoted, so that the problem that the strength is damaged due to a relatively large doping amount of the thixotropic agent is solved, and the nanocrystal nucleus enhanced starch-based thixotropic agent has a good application prospect.
本发明提供了一种纳米晶核增强型淀粉基触变剂及其制备方法和应用，所述淀粉基触变剂的各原料组分质量百分比为：纳米晶核材料(0.2‑0.8％)，改性羧甲基淀粉醚(15‑30％)，纤维素醚(20‑40％)，助分散剂(1.5‑3％)，流变稳定剂(0.5‑2％)，余量为水。其中，对羧甲基淀粉醚通过醚化反应引入疏水性基团，增加疏水缔合区域，提升乳化性、表面活性和顺滑程度，也可进一步促进对纳米晶核材料的分散。本发明提供的纳米晶核增强型淀粉基触变剂掺入水泥基材料中可显著提升触变性，特别是在施工过程中提升爽滑性以便于施工，并促进早期强度的发展，从而解决了因触变剂掺量较大而导致的强度受损问题，具有良好的应用前景。
Nanometer crystal nucleus enhanced starch-based thixotropic agent as well as preparation method and application thereof
The invention provides a nanocrystal nucleus enhanced starch-based thixotropic agent as well as a preparation method and application thereof. The starch-based thixotropic agent comprises the following raw material components in percentage by mass: 0.2-0.8% of a nanocrystal nucleus material, 15-30% of modified carboxymethyl starch ether, 20-40% of cellulose ether, 1.5-3% of a dispersing aid, 0.5-2% of a rheological stabilizer and the balance of water. Hydrophobic groups are introduced into carboxymethyl starch ether through an etherification reaction, a hydrophobic association area is increased, the emulsibility, the surface activity and the smoothness degree are improved, and dispersion of a nanocrystal nucleus material can be further promoted. When the nanocrystal nucleus enhanced starch-based thixotropic agent provided by the invention is doped into a cement-based material, the thixotropy can be remarkably improved, particularly, the smoothness is improved in the construction process so as to facilitate construction, and the development of early strength is promoted, so that the problem that the strength is damaged due to a relatively large doping amount of the thixotropic agent is solved, and the nanocrystal nucleus enhanced starch-based thixotropic agent has a good application prospect.
本发明提供了一种纳米晶核增强型淀粉基触变剂及其制备方法和应用，所述淀粉基触变剂的各原料组分质量百分比为：纳米晶核材料(0.2‑0.8％)，改性羧甲基淀粉醚(15‑30％)，纤维素醚(20‑40％)，助分散剂(1.5‑3％)，流变稳定剂(0.5‑2％)，余量为水。其中，对羧甲基淀粉醚通过醚化反应引入疏水性基团，增加疏水缔合区域，提升乳化性、表面活性和顺滑程度，也可进一步促进对纳米晶核材料的分散。本发明提供的纳米晶核增强型淀粉基触变剂掺入水泥基材料中可显著提升触变性，特别是在施工过程中提升爽滑性以便于施工，并促进早期强度的发展，从而解决了因触变剂掺量较大而导致的强度受损问题，具有良好的应用前景。
Nanometer crystal nucleus enhanced starch-based thixotropic agent as well as preparation method and application thereof
一种纳米晶核增强型淀粉基触变剂及其制备方法和应用
05.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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