陶瓷纤维对硬硅钙石保温材料性能的影响  

The effect of ceramic fiber on the properties of xonotlite insulation material

作　　者：刘金婵 乐红志[1] 朱建平 李洪达 田贵山[1] 李富功 LIU Jinchan;YUE Hongzhi;ZHU Jianping;LI Hongda;TIAN Guishan;LI Fugong(School of Materials Science and Engineering,Shandong University of Technology,Zibo 255049,China;Shandong Industrial Ceramics Research and Design Institute,Zibo 255000,China)

机构地区：[1]山东理工大学材料科学与工程学院,山东淄博255049 [2]山东工业陶瓷研究设计院有限公司,山东淄博255000

出　　处：《山东理工大学学报（自然科学版）》2021年第5期62-66,共5页Journal of Shandong University of Technology:Natural Science Edition

基　　金：山东省重大科技创新工程项目(2018CXGC1011);淄博市校城融合发展计划项目(2018ZBXC002)。

摘　　要：为了研究纤维加入量和烧制温度对硬硅钙石性能的影响,采用动态水热法合成硬硅钙石。在硬硅钙石粉体中加入硅酸铝陶瓷短纤维,压滤成型后烘干,并在600、800和1000℃分别煅烧2 h。结果表明:硬硅钙石试样的抗弯强度随温度增加而增大,1000℃烧制的试样中硬硅钙石纤维熔融形成珊瑚状骨架结构,具有较高的抗弯强度。当烧制温度为1000℃时,纤维质量分数为10%和15%时的样品抗弯强度较好;当纤维质量分数为15%时,导热系数为最低值0.1398 W/(m·K);陶瓷纤维掺量的增加使硬硅钙石试样的体积密度增大。The effects of fiber content and firing temperature on the properties of xonotlite were studied.The xonotlite was synthesized by dynamic hydrothermal method.Aluminium silicate ceramic short fibers were added into the xonotlite powder,and then pressed into shape and dried.Finally,the samples were calcined at 600,800 and 1000℃for 2 h.The results show that the flexural strength of the xonotlite sample increases with increasing temperature.When the firing temperature is 1000℃,the xonotlite fibers melt into a coral to form a skeleton,which makes flexural strength higher.When the firing temperature is 1000℃,the sample has the best flexural strength with the fiber content being 10%and 15%.When the fiber addition amount is 15%,the thermal conductivity is the lowest,which is 0.1398 W/(m·K).The volume density of xonotlite increases with the increase of ceramic fiber content.

关 键 词：硬硅钙石 保温材料 硅酸铝纤维 导热系数 抗弯强度 

分 类 号：TQ175[化学工程—硅酸盐工业]