Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-mud tackifying slow-release polycarboxylate polycarboxylic acid water reducer as well as preparation and application thereof
The invention provides an anti-mud tackifying slow-release polycarboxylate polycarboxylic acid water reducer and preparation and application thereof. The polycarboxylic acid water reducer is prepared by carrying out free radical polymerization reaction on an anti-mud functional monomer (1) synthesized by esterification reaction of trimethylolpropane and an acrylic acid compound, an anti-mud functional monomer (2) synthesized by esterification reaction of 1,2,6-hexanetriol and an itaconic acid compound, an isopentenol polyoxyethylene ether monomer, acrylic acid, hydroxyethyl acrylate and hydroxypropyl acrylate under the action of a hydrogen peroxide and vitamin C redox system and chain transfer. The polycarboxylic acid water reducer prepared by the invention forms a spatial net-shaped three-dimensional structure under the action of the anti-mud functional monomer, reduces clay adsorption, improves the anti-mud tackifying effect of the water reducer, and slowly releases the water reducer with a water reducing function under the action of two slow-release monomers, namely hydroxyethyl acrylate and hydroxypropyl acrylate.
本发明提供一种抗泥增粘缓释型聚羧酸减水剂及其制备和应用，聚羧酸减水剂由三羟甲基丙烷与丙烯酸类化合物进行酯化反应合成的抗泥功能单体①，1,2,6‑己三醇与衣康酸类化合物进行酯化反应合成的抗泥功能单体②，与异戊烯醇聚氧乙烯醚单体、丙烯酸、丙烯酸羟乙酯、丙烯酸羟丙酯在双氧水和维生素C氧化还原体系和链转移的作用下进行自由基聚合反应而制得。本发明制备的聚羧酸减水剂在抗泥功能单体的作用下形成空间网状立体结构，减少黏土吸附，提高减水剂的抗泥增粘效果，并在丙烯酸羟乙酯、丙烯酸羟丙酯两种缓释单体的作用下，缓慢释放出具有减水功能的减水剂。
Anti-mud tackifying slow-release polycarboxylate polycarboxylic acid water reducer as well as preparation and application thereof
The invention provides an anti-mud tackifying slow-release polycarboxylate polycarboxylic acid water reducer and preparation and application thereof. The polycarboxylic acid water reducer is prepared by carrying out free radical polymerization reaction on an anti-mud functional monomer (1) synthesized by esterification reaction of trimethylolpropane and an acrylic acid compound, an anti-mud functional monomer (2) synthesized by esterification reaction of 1,2,6-hexanetriol and an itaconic acid compound, an isopentenol polyoxyethylene ether monomer, acrylic acid, hydroxyethyl acrylate and hydroxypropyl acrylate under the action of a hydrogen peroxide and vitamin C redox system and chain transfer. The polycarboxylic acid water reducer prepared by the invention forms a spatial net-shaped three-dimensional structure under the action of the anti-mud functional monomer, reduces clay adsorption, improves the anti-mud tackifying effect of the water reducer, and slowly releases the water reducer with a water reducing function under the action of two slow-release monomers, namely hydroxyethyl acrylate and hydroxypropyl acrylate.
本发明提供一种抗泥增粘缓释型聚羧酸减水剂及其制备和应用，聚羧酸减水剂由三羟甲基丙烷与丙烯酸类化合物进行酯化反应合成的抗泥功能单体①，1,2,6‑己三醇与衣康酸类化合物进行酯化反应合成的抗泥功能单体②，与异戊烯醇聚氧乙烯醚单体、丙烯酸、丙烯酸羟乙酯、丙烯酸羟丙酯在双氧水和维生素C氧化还原体系和链转移的作用下进行自由基聚合反应而制得。本发明制备的聚羧酸减水剂在抗泥功能单体的作用下形成空间网状立体结构，减少黏土吸附，提高减水剂的抗泥增粘效果，并在丙烯酸羟乙酯、丙烯酸羟丙酯两种缓释单体的作用下，缓慢释放出具有减水功能的减水剂。
Anti-mud tackifying slow-release polycarboxylate polycarboxylic acid water reducer as well as preparation and application thereof
一种抗泥增粘缓释型聚羧酸减水剂及其制备和应用
HU ZHIHAO (Autor:in) / WANG YUAN (Autor:in) / WANG SUPING (Autor:in) / WEN XUAN (Autor:in)
05.11.2021
Patent
Elektronische Ressource
Chinesisch
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