Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Nano-silver-loaded anti-corrosion and anti-bacterial polycarboxylate superplasticizer and preparation method thereof
The invention belongs to the technical field of concrete admixtures. The invention discloses a nano-silver-loaded anti-corrosion and anti-bacterial polycarboxylate superplasticizer and a preparation method thereof. The superplasticizer comprises the following components in parts by weight: 0.5-2 parts of a silver compound, 1-2 parts of graphene oxide, 0.1-0.3 parts of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide, 10-50 parts of a polyether macromonomer, 2-10 parts of a vinyl micromonomer, 0.05-1 part of an initiator, and the balance of water. According to the invention, the silver compound, the graphene oxide and the polycarboxylate superplasticizer are connected through covalent bonds, the agglomeration problem of nano-silver and graphene oxide is fundamentally solved, the nano-silver introduced into the product has anti-corrosion/anti-bacterial effects, the anti-corrosion and anti-bacterial capability of the polycarboxylate superplasticizer can be remarkably improved, the problem that bacteria and microorganisms are easily bred on the surface of marine or hydraulic concrete is solved, the durability of the concrete is improved, and the service life of the concrete is prolonged.
本发明属于混凝土外加剂技术领域，公开了一种负载纳米银的防腐抗菌型聚羧酸减水剂及其制备方法，该减水剂组分包含：银化合物0.5~2份、氧化石墨烯1~2份、1‑(3‑二甲基氨基丙基)‑3‑乙基碳二亚胺0.1~0.3份、聚醚大单体10~50份、乙烯基小单体2~10份、引发剂0.05~1份和、其余为水。本发明中银化合物、氧化石墨烯和聚羧酸减水剂间通过共价键连接，从根本上解决了纳米银和氧化石墨烯的团聚问题，产品中引入的纳米银具有防腐/抗菌功效，能够显著提升聚羧酸减水剂的防腐抗菌能力，并解决海工或水工混凝土表面容易滋生细菌和微生物的问题，提升其耐久性能和服役寿命。
Nano-silver-loaded anti-corrosion and anti-bacterial polycarboxylate superplasticizer and preparation method thereof
The invention belongs to the technical field of concrete admixtures. The invention discloses a nano-silver-loaded anti-corrosion and anti-bacterial polycarboxylate superplasticizer and a preparation method thereof. The superplasticizer comprises the following components in parts by weight: 0.5-2 parts of a silver compound, 1-2 parts of graphene oxide, 0.1-0.3 parts of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide, 10-50 parts of a polyether macromonomer, 2-10 parts of a vinyl micromonomer, 0.05-1 part of an initiator, and the balance of water. According to the invention, the silver compound, the graphene oxide and the polycarboxylate superplasticizer are connected through covalent bonds, the agglomeration problem of nano-silver and graphene oxide is fundamentally solved, the nano-silver introduced into the product has anti-corrosion/anti-bacterial effects, the anti-corrosion and anti-bacterial capability of the polycarboxylate superplasticizer can be remarkably improved, the problem that bacteria and microorganisms are easily bred on the surface of marine or hydraulic concrete is solved, the durability of the concrete is improved, and the service life of the concrete is prolonged.
本发明属于混凝土外加剂技术领域，公开了一种负载纳米银的防腐抗菌型聚羧酸减水剂及其制备方法，该减水剂组分包含：银化合物0.5~2份、氧化石墨烯1~2份、1‑(3‑二甲基氨基丙基)‑3‑乙基碳二亚胺0.1~0.3份、聚醚大单体10~50份、乙烯基小单体2~10份、引发剂0.05~1份和、其余为水。本发明中银化合物、氧化石墨烯和聚羧酸减水剂间通过共价键连接，从根本上解决了纳米银和氧化石墨烯的团聚问题，产品中引入的纳米银具有防腐/抗菌功效，能够显著提升聚羧酸减水剂的防腐抗菌能力，并解决海工或水工混凝土表面容易滋生细菌和微生物的问题，提升其耐久性能和服役寿命。
Nano-silver-loaded anti-corrosion and anti-bacterial polycarboxylate superplasticizer and preparation method thereof
一种负载纳米银的防腐抗菌型聚羧酸减水剂及其制备方法
LIN YANKUN (Autor:in)
15.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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