高温真空绝热板的制备及性能研究

TB332; 根据真空绝热原理提出一种可在高温环境下使用的新型高温真空绝热板(High-temperature vacuum insulation panel,HT-VIP).在多孔碳化硅泡沫芯材表面包覆多层碳纤维布,通过化学气相渗透(Chemical vapor infiltration,CVI)热解碳的方法对外壳碳纤维体进行增密,然后采用聚合物浸渍裂解(Polymer infiltration and pyrolysis,PIP)工艺制备玻璃碳对材料进行致密化处理,最后采用低压化学气相沉积(Chemical vapor deposition,CVD)工艺沉积SiC涂层对材料进行封装,制备出...

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Published in南京航空航天大学学报 Vol. 49; no. 4; pp. 586 - 590
Main Authors 潘影, 陈照峰, 汪洋, 余盛杰
Format Journal Article
LanguageChinese
Published 苏州宏久航空防热材料科技有限公司,苏州,215400 2017
南京航空航天大学绝热与节能材料国际实验室,南京,211106
南京航空航天大学江苏先进无机功能复合材料协同创新中心,南京,210016%南京航空航天大学绝热与节能材料国际实验室,南京,211106
Subjects
SiC泡沫
导热系数
高温真空绝热板
high-temperature vacuum insulation panel
thermal conductivity
SiC foam
Online AccessGet full text
ISSN1005-2615
DOI10.16356/j.1005-2615.2017.04.020

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Abstract TB332; 根据真空绝热原理提出一种可在高温环境下使用的新型高温真空绝热板(High-temperature vacuum insulation panel,HT-VIP).在多孔碳化硅泡沫芯材表面包覆多层碳纤维布,通过化学气相渗透(Chemical vapor infiltration,CVI)热解碳的方法对外壳碳纤维体进行增密,然后采用聚合物浸渍裂解(Polymer infiltration and pyrolysis,PIP)工艺制备玻璃碳对材料进行致密化处理,最后采用低压化学气相沉积(Chemical vapor deposition,CVD)工艺沉积SiC涂层对材料进行封装,制备出一种具有耐高温、密度低、强度高、低导热以及抗热冲击的新型高温真空绝热复合材料.制备的致密碳纤维增强复合材料,材料内部为真空状态,材料密度为0.81 g/cm3,抗压强度为8.75 MPa.当温度为100～900℃时,高温VIP有效热导热系数从0.20 W/mK逐渐增加到1.16 W/mK,比C/C和C/SiC复合材料低一个数量级.
AbstractList TB332; 根据真空绝热原理提出一种可在高温环境下使用的新型高温真空绝热板(High-temperature vacuum insulation panel,HT-VIP).在多孔碳化硅泡沫芯材表面包覆多层碳纤维布,通过化学气相渗透(Chemical vapor infiltration,CVI)热解碳的方法对外壳碳纤维体进行增密,然后采用聚合物浸渍裂解(Polymer infiltration and pyrolysis,PIP)工艺制备玻璃碳对材料进行致密化处理,最后采用低压化学气相沉积(Chemical vapor deposition,CVD)工艺沉积SiC涂层对材料进行封装,制备出一种具有耐高温、密度低、强度高、低导热以及抗热冲击的新型高温真空绝热复合材料.制备的致密碳纤维增强复合材料,材料内部为真空状态,材料密度为0.81 g/cm3,抗压强度为8.75 MPa.当温度为100～900℃时,高温VIP有效热导热系数从0.20 W/mK逐渐增加到1.16 W/mK,比C/C和C/SiC复合材料低一个数量级.
Abstract_FL According to the adiabatic principle for insulation,a new high-temperature vacuum insulation panel (HT-VIP) is put forward,which can be used in high temperature environment.The material is consisted of the core material which is SiC foam ceramic and the flawless outer shell layer of carbon fiber reinforced composites by chemical vapor infiltration (CVI) and polymer infiltration and pyrolysis(PIP).Moreover,the SiC film is coated by low pressure chemical vapor deposition (CVD) process to seal the surface,in the meantime the inside is a vacuum state.Therefore,the new ultra-temperature vacuum insulation composites with novel structure not only can be used at high temperature,but also have a very low coefficient of thermal conductivity compared with C/C and C/SiC composites.Material density is 0.81 g/cm3,and the compression strength is 8.75 MPa.The effective thermal conductivity of HT-VIP ranges from 0.2 W/(m · K) to 1.16 W/(m · K) in 373-1 173 K temperature,lower than that of C/C and C/SiC composites by an order of magnitude.
Author 陈照峰
潘影
汪洋
余盛杰
AuthorAffiliation 南京航空航天大学绝热与节能材料国际实验室,南京,211106;苏州宏久航空防热材料科技有限公司,苏州,215400;南京航空航天大学江苏先进无机功能复合材料协同创新中心,南京,210016%南京航空航天大学绝热与节能材料国际实验室,南京,211106;苏州宏久航空防热材料科技有限公司,苏州,215400
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Author_FL CHEN Zhaofeng
YU Shengjie
PAN Ying
WANG Yang
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DocumentTitle_FL Preparation and Properties of High-Temperature Vacuum Insulation Panels
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Keywords SiC泡沫
导热系数
高温真空绝热板
high-temperature vacuum insulation panel
thermal conductivity
SiC foam
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南京航空航天大学绝热与节能材料国际实验室,南京,211106
南京航空航天大学江苏先进无机功能复合材料协同创新中心,南京,210016%南京航空航天大学绝热与节能材料国际实验室,南京,211106
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Snippet TB332; 根据真空绝热原理提出一种可在高温环境下使用的新型高温真空绝热板(High-temperature vacuum insulation panel,HT-VIP).在多孔碳化硅泡沫芯材表面包覆多层碳纤维...
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