Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Oleic acid modified polycarboxylate superplasticizer as well as preparation method and application thereof
The invention relates to the technical field of polycarboxylic acid water reducing agents and preparation methods and application thereof, in particular to an oleic acid modified polycarboxylic acid water reducing agent and a preparation method and application thereof, and the oleic acid modified polycarboxylic acid water reducing agent is prepared from polyether monomers, acrylic acid, oleic acid, an emulsifier, an oxidizing agent and the like. According to the invention, oleic acid which is cheaper and more environment-friendly than acrylic acid is selected as a third monomer to synthesize a new terpolymer (oleic acid modified polycarboxylate superplasticizer), so that the water-retaining property and adhesive property of slurry can be improved at the same time; the oleic acid modified polycarboxylate superplasticizer synthesized by the invention is more remarkable in the aspects of adsorbing and dispersing cement particles compared with an unmodified polycarboxylate superplasticizer, shows good effects of promoting cement hydration and improving the mechanical property of concrete, and has an application prospect in the engineering field with high requirements on the early strength of the concrete.
本发明涉及聚羧酸系减水剂及其制备方法和应用技术领域，是一种油酸改性聚羧酸减水剂及其制备方法和应用，该油酸改性聚羧酸减水剂，原料包括聚醚单体、丙烯酸、油酸、乳化剂、氧化剂等。本发明选择了比丙烯酸更便宜、更环保的油酸作为第三单体，合成一种新三元共聚物(油酸改性聚羧酸减水剂)，能够同时改善浆料的保水性和粘结性能；本发明合成的油酸改性聚羧酸减水剂在吸附、分散水泥颗粒方面较未改性聚羧酸减水剂更显著，表现出良好的促进水泥水化，提高混凝土力学性能的作用，在对混凝土早期强度要求高的工程领域具备应用前景。
Oleic acid modified polycarboxylate superplasticizer as well as preparation method and application thereof
The invention relates to the technical field of polycarboxylic acid water reducing agents and preparation methods and application thereof, in particular to an oleic acid modified polycarboxylic acid water reducing agent and a preparation method and application thereof, and the oleic acid modified polycarboxylic acid water reducing agent is prepared from polyether monomers, acrylic acid, oleic acid, an emulsifier, an oxidizing agent and the like. According to the invention, oleic acid which is cheaper and more environment-friendly than acrylic acid is selected as a third monomer to synthesize a new terpolymer (oleic acid modified polycarboxylate superplasticizer), so that the water-retaining property and adhesive property of slurry can be improved at the same time; the oleic acid modified polycarboxylate superplasticizer synthesized by the invention is more remarkable in the aspects of adsorbing and dispersing cement particles compared with an unmodified polycarboxylate superplasticizer, shows good effects of promoting cement hydration and improving the mechanical property of concrete, and has an application prospect in the engineering field with high requirements on the early strength of the concrete.
本发明涉及聚羧酸系减水剂及其制备方法和应用技术领域，是一种油酸改性聚羧酸减水剂及其制备方法和应用，该油酸改性聚羧酸减水剂，原料包括聚醚单体、丙烯酸、油酸、乳化剂、氧化剂等。本发明选择了比丙烯酸更便宜、更环保的油酸作为第三单体，合成一种新三元共聚物(油酸改性聚羧酸减水剂)，能够同时改善浆料的保水性和粘结性能；本发明合成的油酸改性聚羧酸减水剂在吸附、分散水泥颗粒方面较未改性聚羧酸减水剂更显著，表现出良好的促进水泥水化，提高混凝土力学性能的作用，在对混凝土早期强度要求高的工程领域具备应用前景。
Oleic acid modified polycarboxylate superplasticizer as well as preparation method and application thereof
油酸改性聚羧酸减水剂及其制备方法和应用
ZHEN WEIJUN (Autor:in) / ZHANG XIAOYU (Autor:in) / GUAN SHOULU (Autor:in) / CHEN JUN (Autor:in)
06.12.2022
Patent
Elektronische Ressource
Chinesisch
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