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Early strength viscosity reduction type polycarboxylate superplasticizer and preparation method thereof
The invention relates to an early-strength viscosity-reducing polycarboxylate superplasticizer and a preparation method thereof. The early-strength viscosity-reducing polycarboxylate superplasticizeris prepared from the following raw materials: 90-100 parts of polyether monomer, 1-10 parts of inorganic early-strength component A, 1-5 parts of dispersing agent, 100 parts of water, 1-10 parts of inorganic early-strength component B, a dropwise adding liquid X1, a dropwise adding liquid X2, and 0.5-4.0 parts of initiator, namely hydrogen peroxide, wherein the inorganic early strength component Ais one or more of calcium nitrate, calcium formate, calcium bicarbonate, calcium chloride and calcium acetate, the inorganic early strength component B is one or more of sodium silicate, potassium silicate, lithium silicate and magnesium fluosilicate, the preparation method of the dropwise adding liquid X1 comprises the following steps: dissolving mercaptoacetic acid and sodium formaldehyde sulfoxylate in deionized water to obtain a dropwise adding liquid X1, and the preparation method of the dropwise adding liquid X2 comprises the following steps: dissolving acrylic acid in deionized water to obtain the dropwise adding liquid X2. The invention also provides the preparation method of the early strength viscosity-reducing type polycarboxylate superplasticizer. The inorganic early strengthcomponents and the polyether monomer are introduced, so that the water reducer has early strength and viscosity reduction effects at the same time.
一种早强降粘型聚羧酸减水剂及其制备方法，早强降粘型聚羧酸减水剂是由下述原料制成的：90～100份聚醚单体，1～10份无机早强组分A，1～5份分散剂，100份水，1～10份无机早强组分B，滴加液X1，滴加液X2，0.5～4.0份引发剂即过氧化氢。无机早强组分A为硝酸钙、甲酸钙、碳酸氢钙、氯化钙、乙酸钙中的一种或几种，无机早强组分B为硅酸钠、硅酸钾、硅酸锂、氟硅酸镁中的一种或几种，滴加液X1的制备方法是将巯基乙酸与吊白块溶于去离子水得到滴加液X1，滴加液X2的制备方法是将丙烯酸溶于去离子水得到滴加液X2。本发明还提供了早强降粘型聚羧酸减水剂的制备方法。发明通过引入无机早强组分和聚醚单体，使减水剂同时具有早强与降粘效果。
Early strength viscosity reduction type polycarboxylate superplasticizer and preparation method thereof
The invention relates to an early-strength viscosity-reducing polycarboxylate superplasticizer and a preparation method thereof. The early-strength viscosity-reducing polycarboxylate superplasticizeris prepared from the following raw materials: 90-100 parts of polyether monomer, 1-10 parts of inorganic early-strength component A, 1-5 parts of dispersing agent, 100 parts of water, 1-10 parts of inorganic early-strength component B, a dropwise adding liquid X1, a dropwise adding liquid X2, and 0.5-4.0 parts of initiator, namely hydrogen peroxide, wherein the inorganic early strength component Ais one or more of calcium nitrate, calcium formate, calcium bicarbonate, calcium chloride and calcium acetate, the inorganic early strength component B is one or more of sodium silicate, potassium silicate, lithium silicate and magnesium fluosilicate, the preparation method of the dropwise adding liquid X1 comprises the following steps: dissolving mercaptoacetic acid and sodium formaldehyde sulfoxylate in deionized water to obtain a dropwise adding liquid X1, and the preparation method of the dropwise adding liquid X2 comprises the following steps: dissolving acrylic acid in deionized water to obtain the dropwise adding liquid X2. The invention also provides the preparation method of the early strength viscosity-reducing type polycarboxylate superplasticizer. The inorganic early strengthcomponents and the polyether monomer are introduced, so that the water reducer has early strength and viscosity reduction effects at the same time.
一种早强降粘型聚羧酸减水剂及其制备方法，早强降粘型聚羧酸减水剂是由下述原料制成的：90～100份聚醚单体，1～10份无机早强组分A，1～5份分散剂，100份水，1～10份无机早强组分B，滴加液X1，滴加液X2，0.5～4.0份引发剂即过氧化氢。无机早强组分A为硝酸钙、甲酸钙、碳酸氢钙、氯化钙、乙酸钙中的一种或几种，无机早强组分B为硅酸钠、硅酸钾、硅酸锂、氟硅酸镁中的一种或几种，滴加液X1的制备方法是将巯基乙酸与吊白块溶于去离子水得到滴加液X1，滴加液X2的制备方法是将丙烯酸溶于去离子水得到滴加液X2。本发明还提供了早强降粘型聚羧酸减水剂的制备方法。发明通过引入无机早强组分和聚醚单体，使减水剂同时具有早强与降粘效果。
Early strength viscosity reduction type polycarboxylate superplasticizer and preparation method thereof
一种早强降粘型聚羧酸减水剂及其制备方法
SONG XIN (author) / NI TAO (author) / WANG YONGMEI (author) / LIU ZHAOYANG (author) / WANG JINCHUN (author) / LIU CUIFEN (author)
2020-12-04
Patent
Electronic Resource
Chinese
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