铝硅酸盐聚合保温材料的性能影响因素研究

Experimental investigation on influencing factors of performance of Aluminosilicate Polymer Insulation Material

传统建筑外墙保温材料存在成本高、稳定性差等问题。为研制新型保温材料,利用超细偏高岭土、水玻璃和双氧水制备了铝硅酸盐聚合保温材料,采用单因素四水平试验研究了养护温度、双氧水用量和水玻璃含量对该聚合材料的导热系数、体积密度和抗压强度的影响。结果表明,导热系数和体积密度随着养护温度的增加先减小后增大,而抗压强度先增大后减小;导热系数、体积密度和抗压强度均随着双氧水用量的增加而先减小后增大;水土比越大,抗压强度越大,而导热系数和体积密度先减小后增大;为该类聚合保温材料在实际生产中的应用提供了指导性的理论依据。

The traditional insulation material of building external wall exist some disadvantages including highcost and poor stability. In order to prepare new thermal insulation material, Super-fine metakaolin, water glass andhydrogen peroxide are used to prepare aluminosilieate polymer insulation material, and influences of curing tempera-ture, H202 content, and water glass content on material＇s performances are analyzed by 1-factor 4-levels experi-ments. The results show, aluminosilicate polymer＇s thermal conductivity and bulk density decline and then increasewith the increase of curing temperature, while the compressive strength show an increase before declining with thedevelopment of curing time. Thermal conductivity, bulk density and compressive strength see a same trend with theincrease of hydrogen peroxide content. Furthermore, the aluminosilicate polymer material give a remarkable increasein compressive with the growth of water glass content, while thermal conductivity and bulk density show a decrease,before rising.