SiO_(2)基复合隔热材料制备及其性能研究  

Study on Preparation and Performance of SiO_(2)-based Composite Thermal Insulation Material

作　　者：李润康 温佳杰 吕东风 许凯政 崔燚 陈越军 魏颖娜 魏恒勇 卜景龙 Runkang Li;Jiajie Wen;Dongfeng Lv;Kaizheng Xu;Yi Cui;Yuejun Chen;Yingna Wei;Hengyong Wei;Jinglong Bu(College of Material Science and Engineering,North China University of Science and Technology,Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials,Tangshan 063210,Hebei,People's Republic of China)

机构地区：[1]华北理工大学材料科学与工程学院,河北省无机非金属材料重点实验室,唐山063210

出　　处：《江苏陶瓷》2021年第6期26-27,29,共3页Jiangsu Ceramics

基　　金：国家自然科学基金(51272066);河北省自然科学基金(E2019209474)。

摘　　要：通过静电纺丝技术制备出柔性SiO_(2)纳米纤维,将其与亲水型气相SiO_(2)混合均匀后,采用半干法压制得到SiO_(2)复合隔热材料。研究结果表明,柔性SiO_(2)纤维为亲水型气相SiO_(2)提供了空间网络骨架,在未明显提高其导热系数的基础上提高了其抗折强度。The flexible silicon dioxide nanofibers are prepared by electrostatic spinning technology,which is mixed evenly with hydrophilic fumed silica.The silicon dioxide composite insulation material is pressed by semi-dry method.The results show that the flexible silica fiber provides a spatial network skeleton for hydrophilic fumed silica,and improves its folding strength on the basis of not significantly improving its thermal conductivity.

关 键 词：SiO_(2)纤维 亲水型气相SiO_(2) 导热系数 抗折强度 

分 类 号：TQ340.64[化学工程—化纤工业] TB34[一般工业技术—材料科学与工程]