Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modified sodium bentonite, preparation method thereof and waterproof structure
The invention provides modified sodium bentonite and a preparation method thereof, a bentonite waterproof blanket and a waterproof structure, and belongs to the field of road protection. The modified sodium bentonite provided by the invention comprises sodium bentonite particles, a first ionic polymer and a second ionic polymer, the first ionic polymer is located between lamellas of montmorillonite contained in the sodium bentonite particles, and the second ionic polymer is located on the surfaces of the sodium bentonite particles; the first ionic polymer and the second ionic polymer are positively charged. The surface of a montmorillonite crystal sheet layer is negatively charged, an ionic polymer with positive charges can be adsorbed on the surface of the montmorillonite crystal, cations in the ionic polymer can enter the space between the sheet layers after being exchanged, the interlayer spacing is increased, so that an ionic polymer molecular chain enters the space between the montmorillonite crystal sheet layers, the interlayer spacing is increased, and the surface of the montmorillonite crystal sheet layer is coated with the ionic polymer. Therefore, the expansion performance of the modified sodium bentonite is enhanced, the modified sodium bentonite can better block water seepage pore channels, and the anti-permeability performance is enhanced.
本发明提供了一种改性钠基膨润土及其制备方法、膨润土防水毯、防水结构，属于道路防护领域。本发明提供的改性钠基膨润土，包括钠基膨润土颗粒、第一离子型聚合物和第二离子型聚合物；所述第一离子型聚合物位于所述钠基膨润土颗粒含有的蒙脱石的片层间，所述第二离子型聚合物位于钠基膨润土颗粒表面；所述第一离子型聚合物和第二离子型聚合物带正电荷。蒙脱石晶体片层表面带负电荷，带正电荷的离子型聚合物会吸附在蒙脱石晶体表面，离子型聚合物中的阳离子通过交换后会进入片层间，使层间距增大，从而使离子型聚合物分子链进入蒙脱石晶体片层间，增大层间距，从而增强了改性钠基膨润土的膨胀性能，使得其能更好地堵塞渗水孔隙通道，增强抗渗性能。
Modified sodium bentonite, preparation method thereof and waterproof structure
The invention provides modified sodium bentonite and a preparation method thereof, a bentonite waterproof blanket and a waterproof structure, and belongs to the field of road protection. The modified sodium bentonite provided by the invention comprises sodium bentonite particles, a first ionic polymer and a second ionic polymer, the first ionic polymer is located between lamellas of montmorillonite contained in the sodium bentonite particles, and the second ionic polymer is located on the surfaces of the sodium bentonite particles; the first ionic polymer and the second ionic polymer are positively charged. The surface of a montmorillonite crystal sheet layer is negatively charged, an ionic polymer with positive charges can be adsorbed on the surface of the montmorillonite crystal, cations in the ionic polymer can enter the space between the sheet layers after being exchanged, the interlayer spacing is increased, so that an ionic polymer molecular chain enters the space between the montmorillonite crystal sheet layers, the interlayer spacing is increased, and the surface of the montmorillonite crystal sheet layer is coated with the ionic polymer. Therefore, the expansion performance of the modified sodium bentonite is enhanced, the modified sodium bentonite can better block water seepage pore channels, and the anti-permeability performance is enhanced.
本发明提供了一种改性钠基膨润土及其制备方法、膨润土防水毯、防水结构，属于道路防护领域。本发明提供的改性钠基膨润土，包括钠基膨润土颗粒、第一离子型聚合物和第二离子型聚合物；所述第一离子型聚合物位于所述钠基膨润土颗粒含有的蒙脱石的片层间，所述第二离子型聚合物位于钠基膨润土颗粒表面；所述第一离子型聚合物和第二离子型聚合物带正电荷。蒙脱石晶体片层表面带负电荷，带正电荷的离子型聚合物会吸附在蒙脱石晶体表面，离子型聚合物中的阳离子通过交换后会进入片层间，使层间距增大，从而使离子型聚合物分子链进入蒙脱石晶体片层间，增大层间距，从而增强了改性钠基膨润土的膨胀性能，使得其能更好地堵塞渗水孔隙通道，增强抗渗性能。
Modified sodium bentonite, preparation method thereof and waterproof structure
一种改性钠基膨润土及其制备方法、防水结构
LIU YING (Autor:in) / WANG XINPENG (Autor:in) / DU TIANLING (Autor:in) / LI HONGCHENG (Autor:in) / WANG JILIANG (Autor:in) / HOU RONGGUO (Autor:in)
22.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
,
Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse
/
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
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