Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mud-resistant viscosity-reducing polycarboxylic acid water reducer and preparation method thereof
The invention discloses an anti-mud viscosity-reducing polycarboxylic acid water reducer and a preparation method thereof, and belongs to the technical field of building materials. The water reducing agent is prepared from the following components in parts by weight: 360 to 400 parts of unsaturated polyether monomer, 35 to 42 parts of unsaturated acid, 2 to 5 parts of functional monomer, 0.01 to 0.015 part of catalyst, 3 to 5 parts of initiator, 0.8 to 1.5 parts of reducing agent, 1.5 to 2.5 parts of chain transfer agent, 24 to 30 parts of neutralizing agent and 420 to 470 parts of deionized water. The water reducing agent is prepared by carrying out free radical copolymerization reaction on unsaturated polyether monomer, unsaturated carboxylic acid, functional monomer a, functional monomer b and catalyst under the oxidation-reduction action of initiator and reducing agent and then mixing with neutralizer, the doping amount level is 0.05-0.3%, the doping amount is low, the dispersity and anti-mud sensitivity are good, and the water reducing agent has good adaptability to various types of concrete and can be used for preparing concrete. The obtained concrete has excellent comprehensive performance.
本发明公开一种抗泥降粘型聚羧酸减水剂及其制备方法，属于建筑材料技术领域。本发明减水剂按重量份包含不饱和聚醚单体360‑400份、不饱和酸35‑42份、功能单体2‑5份、催化剂0.01‑0.015份，引发剂3‑5份、还原剂0.8‑1.5份、链转移剂1.5‑2.5份、中和剂24‑30份，去离子水420‑470份。减水剂由不饱和聚醚单体、不饱和羧酸、功能单体a、功能单体b和催化剂在引发剂和还原剂的氧化还原作用下进行自由基共聚反应，后经中和剂混合制得，掺量水平在0.05‑0.3％，掺量低，分散性和抗泥敏感性好，对各类混凝土具有良好的适应性，所得混凝土综合性能优异。
Mud-resistant viscosity-reducing polycarboxylic acid water reducer and preparation method thereof
The invention discloses an anti-mud viscosity-reducing polycarboxylic acid water reducer and a preparation method thereof, and belongs to the technical field of building materials. The water reducing agent is prepared from the following components in parts by weight: 360 to 400 parts of unsaturated polyether monomer, 35 to 42 parts of unsaturated acid, 2 to 5 parts of functional monomer, 0.01 to 0.015 part of catalyst, 3 to 5 parts of initiator, 0.8 to 1.5 parts of reducing agent, 1.5 to 2.5 parts of chain transfer agent, 24 to 30 parts of neutralizing agent and 420 to 470 parts of deionized water. The water reducing agent is prepared by carrying out free radical copolymerization reaction on unsaturated polyether monomer, unsaturated carboxylic acid, functional monomer a, functional monomer b and catalyst under the oxidation-reduction action of initiator and reducing agent and then mixing with neutralizer, the doping amount level is 0.05-0.3%, the doping amount is low, the dispersity and anti-mud sensitivity are good, and the water reducing agent has good adaptability to various types of concrete and can be used for preparing concrete. The obtained concrete has excellent comprehensive performance.
本发明公开一种抗泥降粘型聚羧酸减水剂及其制备方法，属于建筑材料技术领域。本发明减水剂按重量份包含不饱和聚醚单体360‑400份、不饱和酸35‑42份、功能单体2‑5份、催化剂0.01‑0.015份，引发剂3‑5份、还原剂0.8‑1.5份、链转移剂1.5‑2.5份、中和剂24‑30份，去离子水420‑470份。减水剂由不饱和聚醚单体、不饱和羧酸、功能单体a、功能单体b和催化剂在引发剂和还原剂的氧化还原作用下进行自由基共聚反应，后经中和剂混合制得，掺量水平在0.05‑0.3％，掺量低，分散性和抗泥敏感性好，对各类混凝土具有良好的适应性，所得混凝土综合性能优异。
Mud-resistant viscosity-reducing polycarboxylic acid water reducer and preparation method thereof
一种抗泥降粘型聚羧酸减水剂及其制备方法
WANG SHENGHUI (Autor:in) / LU JIANG (Autor:in) / JIAO YONGHUAN (Autor:in) / ZHAO WEI (Autor:in) / QIAN SHANSHAN (Autor:in) / SI HONGZHEN (Autor:in) / LI YAO (Autor:in) / QIN YOUMIN (Autor:in) / ZHU DESHUAI (Autor:in) / FENG ENJUAN (Autor:in)
20.09.2024
Patent
Elektronische Ressource
Chinesisch
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