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孔结构是苯乙烯型吸附树脂(以下简称吸附树脂)特征之一。溶剂对吸附树脂孔结构有影响,但并不一致,为此选择一系列溶度参数(δ_s)的溶剂,如水、乙醇、苯等,处理吸附树脂,用吸附法、压汞法、比重法及扫描电镜等方法研究其孔结构。研究取得影响的规律性,若吸附树脂溶度参数为δR,干态树脂的孔参数(如比表面积、孔体积、孔隙率等)随|ρS-ρR|值的增加而增大;并取得吸附树脂的处理方法,以良溶剂溶胀,再用水取代为最佳。
The pore structure is one of the characteristics of a styrene type adsorption resin (hereinafter referred to as an adsorption resin). The solvent has an influence on the pore structure of the adsorption resin, but it is not consistent. For this reason, a series of solvents with solubility parameters (δ_s), such as water, ethanol and benzene, were selected to treat adsorption resin. The adsorption method, mercury intrusion method, Electron microscopy and other methods to study the pore structure. If the solubility parameter of adsorption resin is δR, the pore parameters (such as specific surface area, pore volume, porosity, etc.) of dry resin increase with | ρS-ρR | and increase the adsorption Resin treatment, with a good solvent swelling, and then replaced by water for the best.