Carbon fiber reinforced carbon aerogel composites for thermal insulation prepared by soft reinforcement

被引：114
作者：
Feng, Junzong [1 ]
Zhang, Changrui [1 ]
Feng, Jian [1 ]
机构：
[1] Natl Univ Def Technol, Coll Aerosp & Mat Engn, Key Lab Adv Ceram Fibers & Composites, Changsha 410073, Hunan, Peoples R China
来源：
MATERIALS LETTERS | 2012年 / 67卷 / 01期
关键词：
Carbon materials; Composite materials; Porous materials; Thermal properties; Supercritical drying; CONDUCTIVITY;
D O I：
10.1016/j.matlet.2011.09.076
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To overcome the brittleness and the pyrolysis shrinkage of carbon aerogels, carbon fiber reinforced composites were prepared by copyrolysis of polyacrylonitrile fiber reinforced resorcinol-formaldehyde aerogel composites (PAN/RFs). The PAN/RFs were obtained by impregnating the PAN fiber felt with RF sol and then supercritical drying. Upon carbonization the PAN fiber shrinks with the RF aerogel, thus reducing the shrinkage differences between the fiber and the aerogel, and results in crack-free carbon fiber reinforced carbon aerogel composites, with a thermal conductivity of 0.073 W/m K at 25 degrees C in air. Our new method may greatly expand the usage of carbon aerogels in general applications. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：266 / 268
页数：3
相关论文
共 21 条
[1]   Preparation and properties of resorcinol-formaldehyde organic and carbon gels [J].
Al-Muhtaseb, SA ;
Ritter, JA .
ADVANCED MATERIALS, 2003, 15 (02) :101-+
[2]   New class of carbon-nanotube aerogel electrodes for electrochemical power sources [J].
Bordjiba, Tarik ;
Mohamedi, Mohamed ;
Dao, Le H. .
ADVANCED MATERIALS, 2008, 20 (04) :815-+
[3]   Synthesis of titania-silica xerogels by co-solvent induced gelation at ambient temperature [J].
Budhi, Sridhar ;
Kibombo, Harrison S. ;
Zhao, Dan ;
Gonshorowski, Andra ;
Koodali, Ranjit T. .
MATERIALS LETTERS, 2011, 65 (14) :2136-2138
[4]   Preparation of nanoporous cellulose foams from cellulose-ionic liquid solutions [J].
Deng, Meiling ;
Zhou, Qian ;
Du, Anke ;
van Kasteren, Johannes ;
Wang, Yuzhong .
MATERIALS LETTERS, 2009, 63 (21) :1851-1854
[5]   Determination of the anisotropic thermal conductivity of a carbon aerogel-fiber composite by a non-contact thermographic technique [J].
Drach, V. ;
Wiener, M. ;
Reichenauer, G. ;
Ebert, H. -P. ;
Fricke, J. .
INTERNATIONAL JOURNAL OF THERMOPHYSICS, 2007, 28 (05) :1542-1562
[6]   Resorcinol-Formaldehyde Polycondensation in Deep Eutectic Solvents for the Preparation of Carbons and Carbon-Carbon Nanotube Composites [J].
Gutierrez, Maria C. ;
Rubio, Fausto ;
del Monte, Francisco .
CHEMISTRY OF MATERIALS, 2010, 22 (09) :2711-2719
[7]   Thermomechanical and viscoelastic behavior of a no-flow underfill material for flip-chip applications [J].
He, Y .
THERMOCHIMICA ACTA, 2005, 439 (1-2) :127-134
[8]  
Hüsing N, 1998, ANGEW CHEM INT EDIT, V37, P23, DOI 10.1002/(SICI)1521-3773(19980202)37:1/2<22::AID-ANIE22>3.0.CO
[9]  
2-I
[10]   Pores in carbon materials-Importance of their control [J].
Inagaki, Michio .
NEW CARBON MATERIALS, 2009, 24 (03) :193-222
123