A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Early-strength type water reducing agent and preparation method thereof
The invention relates to an early-strength type water reducing agent and a preparation method thereof. The early-strength type water reducing agent provided by the invention is prepared by carrying out free radical polymerization on high-activity 4-hydroxybutyl vinyl polyoxyethylene ether, acrylic acid and a self-made early-strength monomer in a low-temperature water phase under the initiation action of inorganic peroxide; the molecular structure of the early-strength type water reducing agent is inverted T-shaped; a self-made unsaturated early strength monomer simultaneously containing carboxyl, amide group and terminal amino is introduced into a main chain structure; and the early strength of the concrete is improved under the combined effect of a long side chain and an early strength functional monomer.
本发明涉及一种早强型减水剂及其制备方法，本发明提供的早强聚羧减水剂是由高活性的4‑羟丁基乙烯基聚氧乙烯基醚、丙烯酸、自制早强单体在无机过氧化物的引发作用下在低温水相中自由基聚合制成，其分子结构为倒T型，在主链结构中引入自制同时羧基、酰胺基团和端胺基的自制不饱和早强单体，在长侧链和早强功能单体的共同作用下，实现混凝土早期强度的提高。
Early-strength type water reducing agent and preparation method thereof
The invention relates to an early-strength type water reducing agent and a preparation method thereof. The early-strength type water reducing agent provided by the invention is prepared by carrying out free radical polymerization on high-activity 4-hydroxybutyl vinyl polyoxyethylene ether, acrylic acid and a self-made early-strength monomer in a low-temperature water phase under the initiation action of inorganic peroxide; the molecular structure of the early-strength type water reducing agent is inverted T-shaped; a self-made unsaturated early strength monomer simultaneously containing carboxyl, amide group and terminal amino is introduced into a main chain structure; and the early strength of the concrete is improved under the combined effect of a long side chain and an early strength functional monomer.
本发明涉及一种早强型减水剂及其制备方法，本发明提供的早强聚羧减水剂是由高活性的4‑羟丁基乙烯基聚氧乙烯基醚、丙烯酸、自制早强单体在无机过氧化物的引发作用下在低温水相中自由基聚合制成，其分子结构为倒T型，在主链结构中引入自制同时羧基、酰胺基团和端胺基的自制不饱和早强单体，在长侧链和早强功能单体的共同作用下，实现混凝土早期强度的提高。
Early-strength type water reducing agent and preparation method thereof
一种早强型减水剂及其制备方法
ZHU YANJIAO (author) / ZENG XIANHUA (author) / ZHU QIAOYONG (author) / XIONG HAONAN (author) / HUANG WENYAO (author) / YU FEIYU (author)
2021-11-12
Patent
Electronic Resource
Chinese
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