Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Composite polycarboxylic acid water reducer and preparation method thereof
The invention relates to the field of water reducing agents, and particularly discloses a composite polycarboxylic acid water reducing agent and a preparation method thereof. The composite polycarboxylic acid water reducing agent at least comprises a polycarboxylic acid water reducing agent and an accelerant in a mass ratio of (10-15): (1-3), wherein the accelerant is prepared by carrying out condensation polymerization on polyether glycol and a bifunctional phenyl silane coupling agent in a molar ratio of 2: 1 under the catalysis of vacuumizing and dodecylbenzene sulfonic acid. The composite polycarboxylic acid water reducing agent has good adaptability to a concrete system with high carbon content, the dispersing performance of the water reducing agent can be effectively guaranteed, and the strength performance of concrete is improved.
本申请涉及减水剂领域，具体公开了一种复合型聚羧酸减水剂及其制备方法。该复合型聚羧酸减水剂至少包括质量比为10～15:1～3的聚羧酸减水剂和促进剂，所述促进剂由摩尔比为2:1的聚醚二元醇与二官能度苯基硅烷偶联剂在抽真空和十二烷基苯磺酸催化下缩聚制得。本申请的复合型聚羧酸减水剂与含碳量较高的混凝土体系具有良好的适应性，能够有效保障减水剂的分散性能，提高混凝土强度性能。
Composite polycarboxylic acid water reducer and preparation method thereof
The invention relates to the field of water reducing agents, and particularly discloses a composite polycarboxylic acid water reducing agent and a preparation method thereof. The composite polycarboxylic acid water reducing agent at least comprises a polycarboxylic acid water reducing agent and an accelerant in a mass ratio of (10-15): (1-3), wherein the accelerant is prepared by carrying out condensation polymerization on polyether glycol and a bifunctional phenyl silane coupling agent in a molar ratio of 2: 1 under the catalysis of vacuumizing and dodecylbenzene sulfonic acid. The composite polycarboxylic acid water reducing agent has good adaptability to a concrete system with high carbon content, the dispersing performance of the water reducing agent can be effectively guaranteed, and the strength performance of concrete is improved.
本申请涉及减水剂领域，具体公开了一种复合型聚羧酸减水剂及其制备方法。该复合型聚羧酸减水剂至少包括质量比为10～15:1～3的聚羧酸减水剂和促进剂，所述促进剂由摩尔比为2:1的聚醚二元醇与二官能度苯基硅烷偶联剂在抽真空和十二烷基苯磺酸催化下缩聚制得。本申请的复合型聚羧酸减水剂与含碳量较高的混凝土体系具有良好的适应性，能够有效保障减水剂的分散性能，提高混凝土强度性能。
Composite polycarboxylic acid water reducer and preparation method thereof
一种复合型聚羧酸减水剂及其制备方法
LU MINGRU (Autor:in) / YUE PIQIAO (Autor:in) / SHEN CONGRUI (Autor:in) / LIANG SHIQI (Autor:in) / XU YINGJIE (Autor:in)
23.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
Composite polycarboxylic acid water reducer and preparation method thereof
Europäisches Patentamt | 2022
Polycarboxylic acid type composite concrete water reducer and preparation method thereof
| Europäisches Patentamt | 2024
Ester polycarboxylic acid water reducer and preparation method thereof
| Europäisches Patentamt | 2023
Ester-ether composite polycarboxylic acid water reducer and preparation method thereof
| Europäisches Patentamt | 2023
Ester polycarboxylic acid water reducer and preparation method thereof
| Europäisches Patentamt | 2023