失效磷酸基抛光液与赤泥反应制备地质聚合物的工艺探讨

Study on the Preparation of Geopolymer by the Reaction of Ineffective Phosphoric Acid-based Polishing Solution and Red Mud

磷酸基地质聚合物是一种由[AlO4]、[SiO4]、[PO4]四面体构成的具有三维立体网状的铝硅酸盐无机聚合物,它具有热稳定性好、强度高、介电常数和介电损耗低等优点。本试验利用工业经氢氧化钠浸渍后的废铝矿(俗称赤泥)与失效磷酸基抛光液作为原料,探索原料添加量比例,外加剂和水的添加量比例以及反应温度对反应程度的影响,通过测定试块的抗压强度来判断反应的好坏。

Phosphoric acid-based geopolymer is an aluminosilicate inorganic polymer composed of[AlO4],[SiO4],[PO4]tetrahedron with three-dimensional network.It has the advantages of good thermal stability,high strength,low dielectric constant and dielectric loss.This experiment uses industrial waste aluminum ore(commonly known as red mud)which is impregnated with sodium hydroxide and ineffective phosphoric acid-based polishing solution as raw materials to explore the proportion of raw materials,proportion of additive and water,and the effects of the reaction temperature on the reaction degree.The reaction quality is judged by measuring the compressive strength of the test block.