Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Foam-controlling monomer, polycarboxylate water reducer and preparation methods of foam-controlling monomer and polycarboxylate water reducer
The invention discloses a foam-controlling monomer, a polycarboxylate water reducer and preparation methods of the foam-controlling monomer and the polycarboxylate water reducer. The foam-controlling monomer is prepared by reacting unsaturated acid, an amphiphilic monomer, a catalyst, a water carrying agent and a polymerization inhibitor; and polymerization reaction is carried out on a polyether monomer, a unsaturated adsorption monomer, the foam-controlling monomer and the catalyst to prepare the polycarboxylate water reducer. The foam-controlling monomer is used in the polycarboxylate water reducer, the obtained polycarboxylate water reducer has a good foam control effect, the size and distribution of bubbles in a concrete structure can be effectively controlled, and the compressive strength and durability of concrete are guaranteed; when the concrete is newly mixed, the workability and the constructability of the concrete are ensured; and bubbles on the concrete surface can be reduced, and the appearance quality of the hardened concrete surface is improved.
本发明公开了一种控泡单体、聚羧酸减水剂及其制备方法，通过不饱和酸、两亲性单体、催化剂、携水剂和阻聚剂反应制备获得控泡单体；再通过聚醚单体、不饱和吸附单体、控泡单体和催化剂聚合反应制备获得聚羧酸减水剂。本发明将该控泡单体用于聚羧酸减水剂中，获得的聚羧酸减水剂具有良好的控泡效果，能够有效控制混凝土结构中的气泡大小和分布，保障混凝土的抗压强度和耐久性；在新拌混凝土，保证混凝土和易性、施工性；能够减少混凝土表面的气泡，改善硬化混凝土表面的外观质量。
Foam-controlling monomer, polycarboxylate water reducer and preparation methods of foam-controlling monomer and polycarboxylate water reducer
The invention discloses a foam-controlling monomer, a polycarboxylate water reducer and preparation methods of the foam-controlling monomer and the polycarboxylate water reducer. The foam-controlling monomer is prepared by reacting unsaturated acid, an amphiphilic monomer, a catalyst, a water carrying agent and a polymerization inhibitor; and polymerization reaction is carried out on a polyether monomer, a unsaturated adsorption monomer, the foam-controlling monomer and the catalyst to prepare the polycarboxylate water reducer. The foam-controlling monomer is used in the polycarboxylate water reducer, the obtained polycarboxylate water reducer has a good foam control effect, the size and distribution of bubbles in a concrete structure can be effectively controlled, and the compressive strength and durability of concrete are guaranteed; when the concrete is newly mixed, the workability and the constructability of the concrete are ensured; and bubbles on the concrete surface can be reduced, and the appearance quality of the hardened concrete surface is improved.
本发明公开了一种控泡单体、聚羧酸减水剂及其制备方法，通过不饱和酸、两亲性单体、催化剂、携水剂和阻聚剂反应制备获得控泡单体；再通过聚醚单体、不饱和吸附单体、控泡单体和催化剂聚合反应制备获得聚羧酸减水剂。本发明将该控泡单体用于聚羧酸减水剂中，获得的聚羧酸减水剂具有良好的控泡效果，能够有效控制混凝土结构中的气泡大小和分布，保障混凝土的抗压强度和耐久性；在新拌混凝土，保证混凝土和易性、施工性；能够减少混凝土表面的气泡，改善硬化混凝土表面的外观质量。
Foam-controlling monomer, polycarboxylate water reducer and preparation methods of foam-controlling monomer and polycarboxylate water reducer
一种控泡单体、聚羧酸减水剂及其制备方法
NI TAO (Autor:in) / HUANG YUMEI (Autor:in) / WANG YONGMEI (Autor:in) / SONG XIN (Autor:in) / FENG KE (Autor:in) / LIU ZHAOYANG (Autor:in) / MIRKO GRUBOR (Autor:in) / WANG JINCHUN (Autor:in)
01.10.2021
Patent
Elektronische Ressource
Chinesisch
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