Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cement dispersants comprising naphthalene sulfonic acid polycondensates and at least one of phosphorylated polycondensates and polycarboxylic acid ethers, and building compositions
A cement dispersant comprising a component i) and at least one of components ii) and iii). Component i) is a naphthalene sulfonic acid polycondensate obtainable by polycondensation of i-1) naphthalene sulfonic acid, i-2) an alkoxylated hydroxyaryl compound having a polyoxyalkylene chain containing 3 to 130 oxyalkylene units, and i-3) formaldehyde, the weight ratio of i-1): i-2) being 95: 5 to 60: 40. Component ii) is a phosphorylated polycondensate obtainable by polycondensation of: ii-1) an aromatic compound having a phosphate moiety, ii-2) an alkoxylated hydroxyaryl compound having a polyoxyalkylene chain having 3 to 130 oxyalkylene units, and ii-3) formaldehyde, the weight ratio of ii-1: ii-2 being from 2: 98 to 40: 60. Component iii) is a polycarboxylic acid ether having a carbon chain backbone having anionic and/or anionogenic groups and a polyoxyalkylene side chain having an average of 3 to 130 oxyalkylene units. The cement dispersant has good dosage efficiency, achieves good balance between effect and cost, does not affect compressive strength, and can avoid the compatibility problem and viscosity increase of the dispersant.
水泥分散剂，其包含其包含组分i)和组分ii)和iii)中的至少一种。组分i)为萘磺酸缩聚物，其可通过以下物质的缩聚反应获得：i‑1)萘磺酸，i‑2)烷氧基化的羟基芳基化合物，其具有含3至130个氧亚烷基单元的聚氧亚烷基链，和i‑3)甲醛，i‑1):i‑2)的重量比为95:5至60:40。组分ii)为磷酸化缩聚物，其可通过以下物质的缩聚反应获得：ii‑1)具有磷酸酯部分的芳族化合物，ii‑2)烷氧基化的羟基芳基化合物，其具有含3至130个氧亚烷基单元的聚氧亚烷基链，和ii‑3)甲醛，ii‑1):ii‑2)的重量比为2:98至40:60。组分iii)为聚羧酸醚，其具有含阴离子和/或阴离子源性基团的碳链主链和具有平均3至130个氧亚烷基单元的聚氧亚烷基侧链。所述水泥分散剂具有良好的剂量效率，并在效果和成本之间取得良好平衡，不影响抗压强度，同时还能避免分散剂的相容性问题和粘度增加。
Cement dispersants comprising naphthalene sulfonic acid polycondensates and at least one of phosphorylated polycondensates and polycarboxylic acid ethers, and building compositions
A cement dispersant comprising a component i) and at least one of components ii) and iii). Component i) is a naphthalene sulfonic acid polycondensate obtainable by polycondensation of i-1) naphthalene sulfonic acid, i-2) an alkoxylated hydroxyaryl compound having a polyoxyalkylene chain containing 3 to 130 oxyalkylene units, and i-3) formaldehyde, the weight ratio of i-1): i-2) being 95: 5 to 60: 40. Component ii) is a phosphorylated polycondensate obtainable by polycondensation of: ii-1) an aromatic compound having a phosphate moiety, ii-2) an alkoxylated hydroxyaryl compound having a polyoxyalkylene chain having 3 to 130 oxyalkylene units, and ii-3) formaldehyde, the weight ratio of ii-1: ii-2 being from 2: 98 to 40: 60. Component iii) is a polycarboxylic acid ether having a carbon chain backbone having anionic and/or anionogenic groups and a polyoxyalkylene side chain having an average of 3 to 130 oxyalkylene units. The cement dispersant has good dosage efficiency, achieves good balance between effect and cost, does not affect compressive strength, and can avoid the compatibility problem and viscosity increase of the dispersant.
水泥分散剂，其包含其包含组分i)和组分ii)和iii)中的至少一种。组分i)为萘磺酸缩聚物，其可通过以下物质的缩聚反应获得：i‑1)萘磺酸，i‑2)烷氧基化的羟基芳基化合物，其具有含3至130个氧亚烷基单元的聚氧亚烷基链，和i‑3)甲醛，i‑1):i‑2)的重量比为95:5至60:40。组分ii)为磷酸化缩聚物，其可通过以下物质的缩聚反应获得：ii‑1)具有磷酸酯部分的芳族化合物，ii‑2)烷氧基化的羟基芳基化合物，其具有含3至130个氧亚烷基单元的聚氧亚烷基链，和ii‑3)甲醛，ii‑1):ii‑2)的重量比为2:98至40:60。组分iii)为聚羧酸醚，其具有含阴离子和/或阴离子源性基团的碳链主链和具有平均3至130个氧亚烷基单元的聚氧亚烷基侧链。所述水泥分散剂具有良好的剂量效率，并在效果和成本之间取得良好平衡，不影响抗压强度，同时还能避免分散剂的相容性问题和粘度增加。
Cement dispersants comprising naphthalene sulfonic acid polycondensates and at least one of phosphorylated polycondensates and polycarboxylic acid ethers, and building compositions
包含萘磺酸缩聚物和磷酸化缩聚物和聚羧酸醚中的至少一种的水泥分散剂以及建筑组合物
AYKAN GEORGE (Autor:in) / SCHMIDT MICHAEL (Autor:in) / GOWDA SURESH (Autor:in) / BANDIERA MARCO (Autor:in)
09.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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