Study on Adsorption Properties of Naphthalene Sulfonic Acid Formaldehyde Condensate Dispersant

2019 International Conference on Advanced Electronic Materials, Computers and Materials Engineering

无线电电子学;计算机科学;材料科学

Yan-Min, Zhang^1

College of Chemistry and Chemical Engineering, Longdong University, Qingyang, China^1

关键词: Adsorption behavior;    Adsorption capacities;    Adsorption performance;    Adsorption properties;    High water reducing rates;    Naphthalene sulfonates;    Ultra-violet spectrums;    Water-reducing agents;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/563/2/022041/pdf
DOI  :  10.1088/1757-899X/563/2/022041

来源: IOP

【 摘 要 】

Concrete water reducer is one of the indispensable components of modern concrete. Naphthalene sulfonate acid formaldehyde condensate (FDN) has the characteristics of high water reducing rate, no air entrainment and good adaptability of cement. FDN is one of the most widely used water reducing agents in commercial concrete. The dispersion of water reducer is achieved by adsorbing on the surface of solid particles. In this paper, FDN was synthesized from the laboratory. The molecular structure of FDN was analyzed by infrared spectrum. The variation of FDN adsorption capacity with FDN concentration and adsorption time was analyzed by ultraviolet spectrum. The adsorption behavior of FDN on the surface of cement particles was investigated and its adsorption performance was studied.