Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Slow-release waterproof organic silicon emulsion and preparation method thereof
The invention relates to a slow-release waterproof organic silicon emulsion and a preparation method thereof, and the overall structure of the slow-release waterproof organic silicon emulsion is characterized in that the slow-release waterproof organic silicon emulsion is a core-shell structure in which an emulsifier shell wraps an inner core hydrophobic component, the emulsifier can be directionally arranged on an interface between the hydrophobic component and water, the hydrophobic end extends to the inner core hydrophobic component, the hydrophilic end extends to the water in the outer layer emulsion, and the emulsifier can be uniformly dispersed in the water to form a stable emulsion. When the slow-release waterproof organic silicon emulsion is doped into a cement-based material, the emulsion slowly releases hydrophobic component organic silicon along with continuous reaction and consumption of water with cement, and in an alkaline environment of the cement-based material, siloxane groups of the organic silicon are hydrolyzed and then have a condensation reaction with cement hydration product C-S-H gel, so that the cement-based material is formed. And the hydrophobic groups of the organic silicon are exposed in the capillary pores of the cement-based material, so that a stable integral waterproof layer is formed in the cement-based material.
本发明涉及一种缓释型防水有机硅乳液及其制备方法，此缓释型防水有机硅乳液的整体结构特征为乳化剂外壳包裹内核疏水组分的核壳型结构，其中由于乳化剂包括亲水端与疏水端，乳化剂可在疏水组分和水之间的界面上发生定向排列，疏水端伸向内核疏水组分，亲水端伸向外层乳液中的水，可以均匀地分散在水中，形成稳定的乳液。缓释型防水有机硅乳液内掺进水泥基材料中时，随着水分不断的与水泥反应消耗，乳液缓慢释放出疏水组分有机硅，在水泥基材料的碱性环境下，有机硅的硅氧烷基团发生水解进而与水泥水化产物C‑S‑H凝胶发生缩合反应，锚接在毛细孔壁上，而有机硅的疏水基团暴露在水泥基材料的毛细孔中，在水泥基材料中形成稳定的整体防水层。
Slow-release waterproof organic silicon emulsion and preparation method thereof
The invention relates to a slow-release waterproof organic silicon emulsion and a preparation method thereof, and the overall structure of the slow-release waterproof organic silicon emulsion is characterized in that the slow-release waterproof organic silicon emulsion is a core-shell structure in which an emulsifier shell wraps an inner core hydrophobic component, the emulsifier can be directionally arranged on an interface between the hydrophobic component and water, the hydrophobic end extends to the inner core hydrophobic component, the hydrophilic end extends to the water in the outer layer emulsion, and the emulsifier can be uniformly dispersed in the water to form a stable emulsion. When the slow-release waterproof organic silicon emulsion is doped into a cement-based material, the emulsion slowly releases hydrophobic component organic silicon along with continuous reaction and consumption of water with cement, and in an alkaline environment of the cement-based material, siloxane groups of the organic silicon are hydrolyzed and then have a condensation reaction with cement hydration product C-S-H gel, so that the cement-based material is formed. And the hydrophobic groups of the organic silicon are exposed in the capillary pores of the cement-based material, so that a stable integral waterproof layer is formed in the cement-based material.
本发明涉及一种缓释型防水有机硅乳液及其制备方法，此缓释型防水有机硅乳液的整体结构特征为乳化剂外壳包裹内核疏水组分的核壳型结构，其中由于乳化剂包括亲水端与疏水端，乳化剂可在疏水组分和水之间的界面上发生定向排列，疏水端伸向内核疏水组分，亲水端伸向外层乳液中的水，可以均匀地分散在水中，形成稳定的乳液。缓释型防水有机硅乳液内掺进水泥基材料中时，随着水分不断的与水泥反应消耗，乳液缓慢释放出疏水组分有机硅，在水泥基材料的碱性环境下，有机硅的硅氧烷基团发生水解进而与水泥水化产物C‑S‑H凝胶发生缩合反应，锚接在毛细孔壁上，而有机硅的疏水基团暴露在水泥基材料的毛细孔中，在水泥基材料中形成稳定的整体防水层。
Slow-release waterproof organic silicon emulsion and preparation method thereof
一种缓释型防水有机硅乳液及其制备方法
WEI JIANGXIONG (Autor:in) / ZHANG YUEYUE (Autor:in) / WANG BEIHAN (Autor:in) / XU WEITING (Autor:in) / HUANG HAOLIANG (Autor:in) / YU QIJUN (Autor:in)
29.07.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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