利用花岗岩锯泥制备发泡陶瓷多孔保温材料的研究  

Study on preparation of porous foamed ceramic based on granite saw mud

作　　者：潘红 麦俊明 高子栋 张建茂 陈瑞稼 PAN Hong;MAI Jun-ming;GAO Zi-dong;ZHANG Jian-mao;CHEN Rui-jia

机构地区：[1]山东省产品质量检验研究院,山东济南250102 [2]广东省建筑材料研究院有限公司,广东广州510160 [3]济南中威检测技术有限公司,山东济南250000

出　　处：《砖瓦》2022年第4期29-33,共5页Brick-tile

基　　金：广州市科技计划项目《数据驱动的工业废渣绿色智能低温脱水系统》(201903010068)。

摘　　要：以花岗岩锯泥为主要原料,外掺SiC发泡剂,采用粉末烧结工艺方法,通过粉磨预处理、搅拌混合、压片成型、高温烧结等工序制备了一种发泡陶瓷多孔保温材料;研究了烧成温度,SiC发泡剂掺量、保温时间对发泡陶瓷多孔保温材料平均孔径、气孔率、表观密度、抗压强度等性能指标的影响,并分析了其影响机理。结果表明,SiC发泡剂外掺量为1%,烧成温度为1170℃,保温时间为30min烧成的发泡陶瓷多孔保温材料的性能最优,其气孔率为55%,平均孔径为2.5mm,密度为473kg/m^(3),抗压强度为1.65MPa。The porous foamed ceramic with thermal insulation properties is prepared using granite saw mud as main raw material and SiC as foaming agent through the powder firing method,which processes included the pretreatment of grinding,stirring and mixing,compress moulding and high temperature firing.The effects of firing temperature,foaming agent content and holding time on the average pore size,porosity,density and compressive strength of the po⁃rous foamed ceramic with thermal insulation properties are studied,and their influence mechanisms are analyzed.The results showed that the performance of the porous foamed ceramic with thermal insulation properties is the best with porosity of 55%,average pore diameter of 2.5mm,density of 473kg/m^(3) and compressive strength of 1.65MPa un⁃der the conditions of 1%SiC foaming agent,firing temperature of 1170℃and holding time of 30min.

关 键 词：锯泥 发泡陶瓷 保温材料 粉末烧结 烧成温度 保温时间 

分 类 号：TU528.09[建筑科学—建筑技术科学]