响应面法优化模压烧结泡沫玻璃体积密度工艺!

Optimization of Volume Density of Foam Glass Prepared by Molding and Sintering Using Response Surface Methodology

以废平板玻璃为主要原料,CaCO3为发泡剂,采用模压烧结法制备了硅酸盐泡沫玻璃。通过单因素实验选取了响应面优化试验的因素和水平;根据中心组合(Box-Benhnken)试验设计原理以发泡剂含量、发泡温度、保温时间、原料湿磨时间为自变量,泡沫玻璃体积密度为响应值,采用四因素三水平的响应面试验设计,对各个因素的显著性和交互作用进行分析,优化了泡沫玻璃制备工艺。结果表明:模压烧结法制备泡沫玻璃的最佳工艺条件为发泡剂含量3.2 wt%、发泡温度840℃、保温时间62 min、原料湿磨时间56 min,该条件下泡沫玻璃的体积密度为0.31 g.cm-3。

Silicate porous glass was prepared by moulding and sintering, using waste plate glass, CaCQ as the main raw material. The factors and levels were selected by the single factor experiment. According to the center of the combination （Box-Benhnken） experiment design principle, selecting content of foaming agent, foaming temperature, holding time, wet-grinding time as independent variables, volume density of foam glass as response value, using four factors three levels of response surface experiment design, the siificance of each factor and interaction were analyzed. The optimal technological condition for the lowest volume density of foam glass were as follows： content of foaming agent 3.2 wt%, foaming temperature 840℃ , holding time 62 rain, wet-grinding time 56 min. The volume density of foam glass reached 0.31 g.cm-3 in such conditions.