二茂铁含量对不烧镁钙系耐火材料性能的影响  

Effect of ferrocene content on properties of unburned magnesia - calcia refractories

作　　者：李金锋 王黎 漆小鹏[1] 钟俊鹏[2] 张宇 张敦新 Li Jinfeng;Wang Li;Qi Xiaopeng;Zhong Junpeng;Zhang Yu;Zhang Dunxin(Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China)

机构地区：[1]江西理工大学,江西赣州341000 [2]洛阳理工学院,河南洛阳471000 [3]洛阳市科创绿色建材研究院,河南洛阳471000 [4]山东鲁桥新材料股份有限公司,山东淄博255200

出　　处：《耐火材料》2021年第1期64-68,共5页Refractories

基　　金：河南省高新技术领域科技攻关项目(152102210122)。

摘　　要：以人工合成镁钙砂、电熔镁砂为主原料,无水酚醛树脂作为结合剂,制备了不烧镁钙系试样。研究了二茂铁外加量(质量分数分别为0、0.5%、1%、1.5%)对试样性能的影响,并通过SEM和XRD分析了试样的显微结构和相组成。结果表明:1)经过200、1 650℃热处理后,试样的体积密度、常温耐压强度和抗水化时长随着二茂铁含量的增加呈先上升后下降的趋势,当二茂铁含量为1%(w)时,性能最佳;2) 1 650℃热处理后,二茂铁的引入可以在试样中形成铁酸钙,且有部分碳残留。Unburned magnesia-calcium based specimens were prepared using synthetic magnesia-calcia sand and fused magnesia as the main raw materials,anhydrous phenolic resin as the binder.Effect of the ferrocene addition(0,0.5%,1%,and 1.5%,by mass)on the specimens was researched.SEM and XRD were used to characterize the microstructure and phase composition of the specimens.The results show that:(1)the bulk density,the cold crushing strength and the hydration resistance of the specimens increase first and then decrease as the ferrocene addition increases after heat treatment at 200℃and 1650℃;when the ferrocene addition is 1%,the performance of the specimens is the best;(2)the introduction of ferrocene can form calcium ferrite in the specimen and some carbon remains after the heat treatment at 1650℃.

关 键 词：二茂铁 镁钙砂 不烧镁钙砖 显微结构 抗水化 

分 类 号：TQ175[化学工程—硅酸盐工业]