高红外遮蔽SiZrOC纳米纤维膜的制备及其性能研究

doi:10.15541/jim20210361

无机材料学报 ›› 2022, Vol. 37 ›› Issue (1): 93-100.DOI: 10.15541/jim20210361

所属专题：【结构材料】隔热材料

高红外遮蔽SiZrOC纳米纤维膜的制备及其性能研究

张晓山¹(), 王兵¹(), 吴楠², 韩成¹, 刘海燕¹, 王应德¹()

1.国防科技大学空天科学学院新型陶瓷纤维及其复合材料重点实验室长沙 410073
2.国防科技大学空天科学学院材料科学与工程系长沙 410073

收稿日期:2021-06-07 修回日期:2021-06-29 出版日期:2022-01-20 网络出版日期:2021-07-12
通讯作者: 王应德, 教授. E-mail: wangyingde@nudt.edu.cn; 王兵, 副研究员. E-mail: bingwang@nudt.edu.cn
作者简介:张晓山(1991-), 男, 博士研究生. E-mail: zhangxiaoshan15@nudt.edu.cn
基金资助:
国防基础科研计划(XXXX2017550C001);国家自然科学基金(52002400);国防科技大学科研计划(ZK17-02-02)

Infrared Radiation Shielded SiZrOC Nanofiber Membranes: Preparation and High-temperature Thermal Insulation Performance

ZHANG Xiaoshan¹(), WANG Bing¹(), WU Nan², HAN Cheng¹, LIU Haiyan¹, WANG Yingde¹()

1. Science and Technology on Ceramic Fibers and Composites Laboratory, College of Aerospaces Science and Engineering, National University of Defense Technology, Changsha 410073, China
2. Department of Material Science and Engineering, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China

Received:2021-06-07 Revised:2021-06-29 Published:2022-01-20 Online:2021-07-12
Contact: WANG Yingde, professor. E-mail: wangyingde@nudt.edu.cn; WANG Bing, associate professor. E-mail: bingwang@nudt.edu.cn
About author:ZHANG Xiaoshan (1991-), male, PhD candidate. E-mail: zhangxiaoshan15@nudt.edu.cn
Supported by:
National Defense Basic Research Program(XXXX2017550C001);National Natural Science Foundation of China(52002400);Research Project of NUDT(ZK17-02-02)

摘要/Abstract

摘要：

陶瓷纤维具有较好的力学、耐高温和抗热震性能, 是重要的高温隔热材料。目前, 传统陶瓷纤维膜高温隔热性能不佳, 限制了其在高温隔热领域的应用。本研究采用静电纺丝技术制备了具有高红外遮蔽性能的SiZrOC纳米纤维膜, 纤维的平均直径为(511±108) nm, 组成为SiO₂、ZrO₂、SiOC和自由碳。SiZrOC纤维膜展现出优异的高温隔热性能。在1000 ℃时, SiZrOC纤维膜的热导率仅为0.127 W·m^-1·K^-1, 明显低于其他传统陶瓷隔热纤维。此外, SiZrOC纤维膜还具有较高的强度、良好的柔性和优异的耐高温性能, 在高温隔热领域具有极大的应用潜力。本研究可以为制备其他高性能隔热材料提供新的思路。

关键词: 陶瓷纤维, 高温隔热, 静电纺丝, 红外遮蔽

Abstract:

Ceramic fibers are the vital high-temperature thermal insulating materials due to their excellent mechanical property, high-temperature stability and thermal shock resistance. However, practical application of traditional ceramic fiber membranes in the field of thermal insulation are greatly limited by their high thermal conductivities at high-temperatures. In this work, SiZrOC nanofiber membranes with high infrared shielding performance were prepared by electrospinning technique. The SiZrOC nanofibers were composed of SiO₂, ZrO₂, SiOC, and free carbon phase with average diameter of (511±108) nm. The SiZrOC nanofiber membranes exhibited possess excellent high-temperature thermal insulation performance. Thermal conductivity of SiZrOC nanofiber membranes at 1000 ℃ reached 0.127 W·m^-1·K^-1, obviously lower than that of other traditional ceramic fibers. In addition, the as-prepared SiZrOC nanofiber membranes exhibited high strength, good flexibility and excellent high-temperature stability, so they had great potential for high-temperature thermal insulation. Therefore, preparation strategy of SiZrOC nanofiber membranes also provides a new route for designing other high-performance thermal insulators.

Key words: ceramic fiber, high-temperature thermal insulation, electrospinning, infrared shielding

中图分类号:

TQ343

张晓山, 王兵, 吴楠, 韩成, 刘海燕, 王应德. 高红外遮蔽SiZrOC纳米纤维膜的制备及其性能研究[J]. 无机材料学报, 2022, 37(1): 93-100.

ZHANG Xiaoshan, WANG Bing, WU Nan, HAN Cheng, LIU Haiyan, WANG Yingde. Infrared Radiation Shielded SiZrOC Nanofiber Membranes: Preparation and High-temperature Thermal Insulation Performance[J]. Journal of Inorganic Materials, 2022, 37(1): 93-100.

图/表 8

图1 SiZrOC纳米纤维膜制备流程示意图

Fig. 1 Schematic illustration of the fabrication procedure for SiZrOC nanofiber membranes

图2 PZSO先驱体纤维的红外谱图

Fig. 2 FT-IR spectra of the PZSO precursor nanofibers

图3 (a)PZSO先驱体纤维TG曲线和(b)不同温度下裂解产物气体FT-IR谱图

Fig. 3 (a) TG curve of the PZSO precursor fiber and (b) FT-IR spectra of pyrolysis gas product at various temperatures

图4 (a)SiZrOC纤维膜的应力-应变曲线(插图为SiZrOC纤维膜悬挂10 g砝码和缠绕玻璃棒光学照片); (b)SiZrOC纤维的SEM照片(插图为纤维直径分布图); (c)SiZrOC纤维的EDS谱图和元素含量; (d)SiZrOC纤维的TEM、HRTEM和SAED照片

Fig. 4 (a) Tensile strength-tensile strain of the SiZrOC nanofiber membranes (insets showing photographs of a piece of SiZrOC nanofiber membrane hanging a 10 g weight and bending with a glass bar); (b) SEM image of the SiZrOC nanofiber (inset showing distribution of fiber diameter); (c) EDS spectrum of SiZrOC nanofiber; (d) TEM image of the SiZrOC fiber (Inset showing the SAED pattern and HRTEM image taken from the region being marked in the red square box)

图5 SiZrOC和SiZrO纤维的XRD图谱

Fig. 5 XRD patterns of SiZrOC and SiZrO nanofibers

图6 (a)SiZrOC和SiZrO纤维的XPS全谱图; (b)C1s, (c)Si2p和(d)Zr3d分峰拟合图

Fig. 6 (a) XPS survey spectra of the SiZrOC and SiZrO fibers, and peak fittings of the SiZrOC fibers of (b) C1s, (c) Si2p, (d) Zr3d

图7 (a)酒精灯加热SiZrOC纤维膜的光学照片, (b)25和1000 ℃下SiZrOC和SiZrO纤维膜热导率, (c)SiZrOC和SiZrO纤维膜的消光系数和(d)1000 ℃下SiZrOC纤维膜热导率与传统陶瓷纤维热导率对比

Fig. 7 (a) Photograph of SiZrOC nanofiber membrane heated by alcohol lamp, (b) thermal conductivities and (c) extinction coefficient (e) of SiZrOC and SiZrO nanofibers, and (d) thermal conductivity comparison among different ceramic fibers at 1000 ℃

图8 SiZrOC纳米纤维在不同温度质量下的保留率

Fig. 8 Weight retention versus temperature of the SiZrOC nanofiber

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高红外遮蔽SiZrOC纳米纤维膜的制备及其性能研究

Infrared Radiation Shielded SiZrOC Nanofiber Membranes: Preparation and High-temperature Thermal Insulation Performance

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