A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anti-flocculation carboxylic acid water reducing agent and preparation method thereof
The invention discloses an anti-flocculation carboxylic acid water reducing agent and a preparation method thereof. The water reducing agent is mainly obtained by reacting polyether macromonomer diethylene glycol polyethylene glycol vinyl ether, 4-propyl guaiacol and tripropylene glycol diacrylate. Compared with the prior art, the anti-flocculation (PAM) polycarboxylic acid water reducing agent provided by the invention can greatly improve the adsorption efficiency of the water reducing agent in concrete and remarkably improve the performance of the water reducing agent, so that the workability of fresh concrete is enhanced; a benzene ring group is contained on a main chain, so that steric hindrance among cement particles can be increased, flocculation in machine-made sand is ineffective, and the purpose of resisting flocculation is achieved; the problems of low concrete flowability, high slump loss and the like after the machine-made sand containing the flocculating agent is added into the concrete can be solved; the preparation method is simple in synthesis process, low in cost and suitable for large-scale industrial production, and is an economical preparation method for obtaining the high-quality concrete admixture.
本发明公开了一种抗絮凝聚羧酸减水剂及其制备方法，所述减水剂主要是由聚醚大单体二乙二醇聚乙二醇乙烯基醚、4‑丙基愈创木酚和二缩三丙二醇二丙烯酸酯反应所得。与现有技术相比，本发明提供的抗絮凝(PAM)聚羧酸减水剂能够大大的提供减水剂在混凝土中的吸附效率，显著提高减水剂的性能，从而增强新拌混凝土的工作性；其主链上含有苯环基团，能够增大水泥颗粒之间的空间位阻，使机制砂中的絮凝失去作用，从而实现抗絮凝的目的；可以克服因在混凝土中加入含絮凝剂的机制砂后使混凝土流动性小，坍损大等问题；其合成工艺简单，成本低廉，适合大规模工业化生产，是一种经济的获得高品质的混凝土外加剂的制备方法。
Anti-flocculation carboxylic acid water reducing agent and preparation method thereof
The invention discloses an anti-flocculation carboxylic acid water reducing agent and a preparation method thereof. The water reducing agent is mainly obtained by reacting polyether macromonomer diethylene glycol polyethylene glycol vinyl ether, 4-propyl guaiacol and tripropylene glycol diacrylate. Compared with the prior art, the anti-flocculation (PAM) polycarboxylic acid water reducing agent provided by the invention can greatly improve the adsorption efficiency of the water reducing agent in concrete and remarkably improve the performance of the water reducing agent, so that the workability of fresh concrete is enhanced; a benzene ring group is contained on a main chain, so that steric hindrance among cement particles can be increased, flocculation in machine-made sand is ineffective, and the purpose of resisting flocculation is achieved; the problems of low concrete flowability, high slump loss and the like after the machine-made sand containing the flocculating agent is added into the concrete can be solved; the preparation method is simple in synthesis process, low in cost and suitable for large-scale industrial production, and is an economical preparation method for obtaining the high-quality concrete admixture.
本发明公开了一种抗絮凝聚羧酸减水剂及其制备方法，所述减水剂主要是由聚醚大单体二乙二醇聚乙二醇乙烯基醚、4‑丙基愈创木酚和二缩三丙二醇二丙烯酸酯反应所得。与现有技术相比，本发明提供的抗絮凝(PAM)聚羧酸减水剂能够大大的提供减水剂在混凝土中的吸附效率，显著提高减水剂的性能，从而增强新拌混凝土的工作性；其主链上含有苯环基团，能够增大水泥颗粒之间的空间位阻，使机制砂中的絮凝失去作用，从而实现抗絮凝的目的；可以克服因在混凝土中加入含絮凝剂的机制砂后使混凝土流动性小，坍损大等问题；其合成工艺简单，成本低廉，适合大规模工业化生产，是一种经济的获得高品质的混凝土外加剂的制备方法。
Anti-flocculation carboxylic acid water reducing agent and preparation method thereof
一种抗絮凝聚羧酸减水剂及其制备方法
YU HAO (author) / YANG WEIBEN (author) / JIAN KAI (author) / HU KAIWEI (author) / XING YABING (author) / LIU ZIYI (author)
2024-06-14
Patent
Electronic Resource
Chinese
Carboxylic acid water-reducing agent modified by multiamino fibers and preparation method thereof
| European Patent Office | 2015
Anti-mud water reducing agent and preparation method thereof
| European Patent Office | 2023
Anti-mud polycarboxylate water reducing agent and preparation method thereof
| European Patent Office | 2020
Anti-clay naphthalene water reducing agent and preparation method thereof
| European Patent Office | 2016
SHRINKAGE-REDUCING POLYCARBOXYLIC ACID WATER REDUCING AGENT AND PREPARATION METHOD THEREOF
| European Patent Office | 2021