Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Polycarboxylate superplasticizer with super high early strength and preparation method of polycarboxylate superplasticizer
The invention discloses a polycarboxylate superplasticizer with super high early strength and a preparation method of the polycarboxylate superplasticizer. The polycarboxylate superplasticizer is prepared as follows: amine polyoxyethylene ether, acrylic acid, maleic hydroxy acid ester and allyl amine are taken as monomers and added with an inorganic peroxide initiator for free radical copolymerization, main chains of molecules of the superplasticizer contain carboxylic acid groups, sulfonic acid groups and amino groups simultaneously, side chains adopt long-chain polyamine ether, and the ratio of polyoxyethylene ether to acrylic acid to water to maleic hydroxy acid ester to allyl amine to the inorganic peroxide initiator in parts by mass is 100:(20-30):(100-150):(2-10):(2-10):(0.1-0.5). The invention further provides the preparation method of the polycarboxylate superplasticizer. The polycarboxylate superplasticizer with super high early strength has the advantages of short setting time, high early strength, good adaptability, extremely low chlorine ion content and capability of improvement of the concrete durability; meanwhile, the production process is simple, low in cost, environment-friendly and pollution-free, and mass production can be realized.
Polycarboxylate superplasticizer with super high early strength and preparation method of polycarboxylate superplasticizer
The invention discloses a polycarboxylate superplasticizer with super high early strength and a preparation method of the polycarboxylate superplasticizer. The polycarboxylate superplasticizer is prepared as follows: amine polyoxyethylene ether, acrylic acid, maleic hydroxy acid ester and allyl amine are taken as monomers and added with an inorganic peroxide initiator for free radical copolymerization, main chains of molecules of the superplasticizer contain carboxylic acid groups, sulfonic acid groups and amino groups simultaneously, side chains adopt long-chain polyamine ether, and the ratio of polyoxyethylene ether to acrylic acid to water to maleic hydroxy acid ester to allyl amine to the inorganic peroxide initiator in parts by mass is 100:(20-30):(100-150):(2-10):(2-10):(0.1-0.5). The invention further provides the preparation method of the polycarboxylate superplasticizer. The polycarboxylate superplasticizer with super high early strength has the advantages of short setting time, high early strength, good adaptability, extremely low chlorine ion content and capability of improvement of the concrete durability; meanwhile, the production process is simple, low in cost, environment-friendly and pollution-free, and mass production can be realized.
Polycarboxylate superplasticizer with super high early strength and preparation method of polycarboxylate superplasticizer
WANG HUQUN (Autor:in) / DUAN WENFENG (Autor:in) / HU YANSHAN (Autor:in) / YANG XIAOFENG (Autor:in) / XIONG WEIFENG (Autor:in)
27.01.2016
Patent
Elektronische Ressource
Englisch
| Europäisches Patentamt | 2016
| Europäisches Patentamt | 2016
| Europäisches Patentamt | 2023