Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modified water repellent and preparation method thereof
The invention relates to a modified water repellent. The modified water repellent is mainly prepared from the following raw materials: sodium hydroxide, methyl silicic acid, inorganic salt, an auxiliary agent and water, wherein a molar ratio of the sodium hydroxide to the methyl silicic acid to the inorganic salt is (2-3): 1: (1-1.5), and the mass percentage of the auxiliary agent in the total rawmaterials is 0.02-0.1%. The pH value of the modified water repellent is 6.5-7.5, and the modified water repellent is neutral, is safe and environmentally friendly in construction, and prevents the surface of a base material from saltpetering; and due to the fact that a hydrophobic effect is not only generated on the surface, but also generated in the interior, the base material has permanent waterproofness, and the base material also has dustproof performance.
本发明涉及一种改性憎水剂，主要由以下原料制备而成：氢氧化钠、甲基硅酸、无机盐、辅助剂和水；其中氢氧化钠、甲基硅酸与无机盐的摩尔比为2‑3:1:1‑1.5，所述的总原料中辅助剂的质量百分含量为0.02‑0.1％。本发明PH值为6.5‑7.5，呈中性，在施工中安全环保，本发明不会使基材表面返碱，本发明由于憎水效应不仅产生于表面，而且产于与内部，所以使基材具有永久的防水性，而且具有防尘性能。
Modified water repellent and preparation method thereof
The invention relates to a modified water repellent. The modified water repellent is mainly prepared from the following raw materials: sodium hydroxide, methyl silicic acid, inorganic salt, an auxiliary agent and water, wherein a molar ratio of the sodium hydroxide to the methyl silicic acid to the inorganic salt is (2-3): 1: (1-1.5), and the mass percentage of the auxiliary agent in the total rawmaterials is 0.02-0.1%. The pH value of the modified water repellent is 6.5-7.5, and the modified water repellent is neutral, is safe and environmentally friendly in construction, and prevents the surface of a base material from saltpetering; and due to the fact that a hydrophobic effect is not only generated on the surface, but also generated in the interior, the base material has permanent waterproofness, and the base material also has dustproof performance.
本发明涉及一种改性憎水剂，主要由以下原料制备而成：氢氧化钠、甲基硅酸、无机盐、辅助剂和水；其中氢氧化钠、甲基硅酸与无机盐的摩尔比为2‑3:1:1‑1.5，所述的总原料中辅助剂的质量百分含量为0.02‑0.1％。本发明PH值为6.5‑7.5，呈中性，在施工中安全环保，本发明不会使基材表面返碱，本发明由于憎水效应不仅产生于表面，而且产于与内部，所以使基材具有永久的防水性，而且具有防尘性能。
Modified water repellent and preparation method thereof
一种改性憎水剂及其制备方法
ZHENG XIUQI (Autor:in) / ZHENG QIUJIAN (Autor:in) / CAI YUANLIN (Autor:in) / HU ZHENGBO (Autor:in)
25.08.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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