Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-adaptability polycarboxylate superplasticizer and preparation method thereof
The invention relates to a high-adaptability polycarboxylate superplasticizer and a preparation method thereof. The applicable polycarboxylate superplasticizer comprises 200 to 216 parts of deionizedwater, 190 to 200 parts of a polyether macromonomer, 19 to 21 parts of acrylic acid, 1 to 2 parts of a functional monomer, 0.8 to 0.85 part of a chain transfer agent, 0.7 to 0.9 part of an oxidizing initiator, 0.25 to 0.29 part of a reducing initiator and 19 to 20 parts of a neutralizer. Compared with a common polycarboxylate superplasticizer, the superplasticizer has a more complex space structure and steric hindrance, and is more suitable for complex ground materials; meanwhile, functional groups such as phosphate groups and sulfonic groups are introduced, so that the superplasticizer has relatively good slump loss resistance, and the workability and slump loss resistance of concrete are improved.
本发明涉及一种高适应性聚羧酸减水剂及其制备方法，该适用性聚羧酸减水剂的组成如下：去离子水200‑216份，聚醚大单体190‑200份，丙烯酸19‑21份，功能性单体1‑2份，链转移剂0.8‑0.85份，氧化性引发剂0.7‑0.9份，还原性引发剂0.25‑0.29份，中和剂19‑20份。相对于普通的聚羧酸减水剂，该减水剂具有更复杂的空间结构和空间位阻，更适应复杂的地材；同时引入的磷酸基、磺酸基等功能性基团能使减水剂具有较好的保坍性，提高了混凝土的和易性和保坍工作性能。
High-adaptability polycarboxylate superplasticizer and preparation method thereof
The invention relates to a high-adaptability polycarboxylate superplasticizer and a preparation method thereof. The applicable polycarboxylate superplasticizer comprises 200 to 216 parts of deionizedwater, 190 to 200 parts of a polyether macromonomer, 19 to 21 parts of acrylic acid, 1 to 2 parts of a functional monomer, 0.8 to 0.85 part of a chain transfer agent, 0.7 to 0.9 part of an oxidizing initiator, 0.25 to 0.29 part of a reducing initiator and 19 to 20 parts of a neutralizer. Compared with a common polycarboxylate superplasticizer, the superplasticizer has a more complex space structure and steric hindrance, and is more suitable for complex ground materials; meanwhile, functional groups such as phosphate groups and sulfonic groups are introduced, so that the superplasticizer has relatively good slump loss resistance, and the workability and slump loss resistance of concrete are improved.
本发明涉及一种高适应性聚羧酸减水剂及其制备方法，该适用性聚羧酸减水剂的组成如下：去离子水200‑216份，聚醚大单体190‑200份，丙烯酸19‑21份，功能性单体1‑2份，链转移剂0.8‑0.85份，氧化性引发剂0.7‑0.9份，还原性引发剂0.25‑0.29份，中和剂19‑20份。相对于普通的聚羧酸减水剂，该减水剂具有更复杂的空间结构和空间位阻，更适应复杂的地材；同时引入的磷酸基、磺酸基等功能性基团能使减水剂具有较好的保坍性，提高了混凝土的和易性和保坍工作性能。
High-adaptability polycarboxylate superplasticizer and preparation method thereof
一种高适应性聚羧酸减水剂及其制备方法
ZHU JINJIAN (Autor:in) / ZHENG JIANMIN (Autor:in) / BAO FENGLI (Autor:in) / YU XIAORONG (Autor:in) / WU ZHULIANG (Autor:in) / XIE ZHONGHUI (Autor:in) / HUI YONGPAN (Autor:in)
28.04.2020
Patent
Elektronische Ressource
Chinesisch
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