Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Composite lightweight concrete air entraining agent and preparation method thereof
The invention relates to the field of concrete additives, in particular to a composite lightweight concrete air entraining agent and a preparation method thereof.The composite lightweight concrete air entraining agent is prepared from, by weight, 10-30 parts of fatty alcohol polyoxypropylene polyoxyethylene ether sulfonate, 10-20 parts of foam stabilizer, 40-60 parts of dispersing agent, 30-50 parts of sodium alpha-olefin sulfonate, 5-10 parts of sodium gluconate and 180-220 parts of water. A polyoxypropylene-polyoxyethylene block group (PO-EO) is introduced between a hydrophilic group and a hydrophobic group of a traditional surfactant, so that the length of a hydrophobic chain in a molecular structure is prolonged, formation of micelles is facilitated, the hydrophilic performance of the molecules is improved, and fatty alcohol polyoxypropylene polyoxyethylene ether sulfonate with excellent surface performance and air entraining performance is generated; the interaction between anion and nonionic molecules is utilized, a large number of uniform, tiny and stable bubbles are introduced, and the air entraining performance and the bubble stabilizing and foaming performance of the air entraining agent are improved through the synergistic effect.
本发明本发明涉及混凝土添加剂领域，特别涉及一种复合型轻质混凝土引气剂及其制备方法，原料按重量份计，包括：脂肪醇聚氧丙烯聚氧乙烯醚磺酸盐10‑30份、稳泡剂10‑20份、分散剂40‑60份、α‑烯基磺酸钠30‑50份、葡萄糖酸钠5‑10份、水180‑220份。通过在传统表面活性剂的亲水基和疏水基之间引入聚氧丙烯‑聚氧乙烯嵌段基团(PO‑EO)，从分子结构上延长了疏水链长度，有助于形成胶束，提高其分子亲水性能，生成具有优异的表面性能和引气性能的脂肪醇聚氧丙烯聚氧乙烯醚磺酸盐；并利用阴离子和非离子分子间的相互作用，并引入大量均匀、微小、稳定的气泡，通过协同效应提高引气剂的引气性能、稳泡起泡性能。
Composite lightweight concrete air entraining agent and preparation method thereof
The invention relates to the field of concrete additives, in particular to a composite lightweight concrete air entraining agent and a preparation method thereof.The composite lightweight concrete air entraining agent is prepared from, by weight, 10-30 parts of fatty alcohol polyoxypropylene polyoxyethylene ether sulfonate, 10-20 parts of foam stabilizer, 40-60 parts of dispersing agent, 30-50 parts of sodium alpha-olefin sulfonate, 5-10 parts of sodium gluconate and 180-220 parts of water. A polyoxypropylene-polyoxyethylene block group (PO-EO) is introduced between a hydrophilic group and a hydrophobic group of a traditional surfactant, so that the length of a hydrophobic chain in a molecular structure is prolonged, formation of micelles is facilitated, the hydrophilic performance of the molecules is improved, and fatty alcohol polyoxypropylene polyoxyethylene ether sulfonate with excellent surface performance and air entraining performance is generated; the interaction between anion and nonionic molecules is utilized, a large number of uniform, tiny and stable bubbles are introduced, and the air entraining performance and the bubble stabilizing and foaming performance of the air entraining agent are improved through the synergistic effect.
本发明本发明涉及混凝土添加剂领域，特别涉及一种复合型轻质混凝土引气剂及其制备方法，原料按重量份计，包括：脂肪醇聚氧丙烯聚氧乙烯醚磺酸盐10‑30份、稳泡剂10‑20份、分散剂40‑60份、α‑烯基磺酸钠30‑50份、葡萄糖酸钠5‑10份、水180‑220份。通过在传统表面活性剂的亲水基和疏水基之间引入聚氧丙烯‑聚氧乙烯嵌段基团(PO‑EO)，从分子结构上延长了疏水链长度，有助于形成胶束，提高其分子亲水性能，生成具有优异的表面性能和引气性能的脂肪醇聚氧丙烯聚氧乙烯醚磺酸盐；并利用阴离子和非离子分子间的相互作用，并引入大量均匀、微小、稳定的气泡，通过协同效应提高引气剂的引气性能、稳泡起泡性能。
Composite lightweight concrete air entraining agent and preparation method thereof
一种复合型轻质混凝土引气剂及其制备方法
ZHU SHAOHONG (Autor:in) / ZHANG JIAYAN (Autor:in) / JIANG ZHUOJUN (Autor:in) / WU JINSONG (Autor:in) / WANG YANGJIE (Autor:in) / LIN TIANXING (Autor:in)
03.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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