多羟基糖类结合剂对Al_(2)O_(3)-SiC-C质无水炮泥性能的影响  

Influence of polyhydroxy saccharide binders on properties of Al_(2)O_(3)-SiC-C waterless taphole clay

作　　者：李文凤[1] 申天姿 郭会师 曹金金 康晓旭 石凯[1] 康晓阳 Li Wenfeng;Shen Tianzi;Guo Huishi;Cao Jinjin;Kang Xiaoxu;Shi Kai;Kang Xiaoyang(School of Material Science and Engineering,Henan University of Technology,Zhengzhou 450001,Henan,China;不详)

机构地区：[1]河南工业大学材料科学与工程学院,河南郑州450001 [2]郑州轻工业大学材料与化学工程学院,河南郑州450051 [3]河南宏宇新材料科技有限公司,河南郑州451200

出　　处：《耐火材料》2024年第4期314-318,共5页Refractories

基　　金：国家自然科学基金(51802290);河南省重点科技攻关(232102231046,232102231051);河南工业大学青年骨干教师培育计划(21421211)。

摘　　要：为减少炮泥的污染,开发环境友好型炮泥,采用棕刚玉、SiC、焦炭、绢云母、蓝晶石、黏土、Si_(3)N_(4)-Fe粉等为主要原料,NS-FH为复合烧结助剂,分别以环保无污染的多羟基糖类葡萄糖和蔗糖为结合剂,制备Al_(2)O_(3)-SiC-C质无水炮泥。研究了葡萄糖或蔗糖溶液的外加量(加入质量分数分别为0、8%、9%、10%、11%、12%、13%)对该炮泥性能的影响。结果表明:以多羟基糖类葡萄糖或蔗糖为结合剂,可制得综合性能较好的Al_(2)O_(3)-SiC-C质无水炮泥;外加12%(w)的蔗糖溶液时,无水炮泥的性能最佳,其马夏值为1.14 MPa,1350℃埋石墨烧后的线收缩率、体积密度和显气孔率分别为0.72%、2.41 g·cm^(-3)和24.4%,常温耐压强度和高温抗折强度(1400℃埋碳并保温30 min)分别为40.1和12.1 MPa。To reduce the pollution of taphole clay and develop environment-friendly taphole clay,Al_(2)O_(3)-SiC-C waterless taphole clay was prepared using brown corundum,SiC,coke,sericite,kyanite,clay,and Si_(3)N_(4)-Fe powder as the main raw materials,NS-FH as the composite sintering aid,and environmentally friendly polyhydroxy saccharides glucose and sucrose as the binders.The effect of the extra addition of glucose or sucrose solution(0,8%,9%,10%,11%,12%and 13%,by mass)on the properties of Al_(2)O_(3)-SiC-C waterless taphole clay was studied.The results show that the Al_(2)O_(3)-SiC-C waterless taphole clay with good comprehensive properties can be prepared using polyhydroxy saccharides glucose or sucrose as the binder;when the addition of sucrose solution is 12%,the performance of the waterless taphole clay is the best,the Marshall value is 1.14 MPa,and the sample fired at 1350℃in an atmosphere with carbon embedded has the linear shrinkage rate of 0.72%,bulk density of 2.41 g·cm^(-3),apparent porosity of 24.4%,cold compressive strength of 40.1 MPa and hot modulus of rupture(embedded in carbon at 1400℃for 30 min)of 12.1 MPa.

关 键 词：多羟基糖类结合剂 Al_(2)O_(3)-SiC-C质无水炮泥 马夏值 力学性能 显微结构 

分 类 号：TQ175[化学工程—硅酸盐工业]