Thermal conductivity of magnetically aligned carbon nanotube buckypapers and nanocomposites

Gonnet, Philippe; Liang, Zhiyong; Choi, Eun Sang; Kadambala, Ravi; Zhang, Chuck; Brooks, J. S.; Wang, Ben; Kramer, Leslie

doi:10.1016/j.cap.2005.01.053

Cited by 197 publications

(145 citation statements)

References 17 publications

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“…Using the thermal conductivity meter, the thermal conductivity of the BPs was measured to be ~2.7 W×m -2 ×K -1 . This is low in comparison to the high thermal conductivities (~700 W×m -2 ×K -1 ) that have been predicted and reported for individual multi-walled CNTs [23][24][25] Various other techniques were also used to characterise the membranes and determine their suitability for membrane distillation. These results are summarised in Table 1Table 1 and where possible are also compared with values for a typical PTFE membrane.…”

Section: Membrane Characterisationmentioning

confidence: 91%

Characterization and evaluation of carbon nanotube Bucky-Paper membranes for direct contact membrane distillation

Dumée

Sears

Schütz

et al. 2010

Journal of Membrane Science

308

130

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Self-supporting carbon nanotube (CNT) Bucky-Papers have unique structural and surface properties which can be utilised in many applications. In this work we characterised pure selfsupporting CNT membranes, where CNTs were held together only by Van der Waals forces, and evaluated their potential and performance in direct contact membrane distillation. The membranes were found to be highly hydrophobic (contact angle of 113°), highly porous (90%), and to exhibit a thermal conductivity of 2.7 kW/m 2 •h. We demonstrate, as a proof of concept, that self-supporting CNT Bucky-Paper membranes can be used for desalination in a direct contact membrane distillation setup with 99% salt rejection and a flux rate of ~12 kg/m 2 *h at a water vapour partial pressure difference of 22.7kPa. Ageing of the membranes by delamination, factor limiting their performance, is also reported but work is currently done to address this issue by investigating composite material structures.

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Section: Membrane Characterisationmentioning

confidence: 91%

Characterization and evaluation of carbon nanotube Bucky-Paper membranes for direct contact membrane distillation

Dumée

Sears

Schütz

et al. 2010

Journal of Membrane Science

308

130

View full text Add to dashboard Cite

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“…Gonnet and collaborators [90] found a value around 18 and 42 W/mK for the aligned and the random SWCNTs buckypaper. These values are much lower than the theoretical thermal conductivity predicted for SWCNTs and MWCNTs (6000 and 3000 W/mK, respectively).…”

Section: Properties Of Bp/polymer Compositesmentioning

confidence: 95%

“…The result revealed a thermal conductivity of 0.43 W/mK, which is very close to that reported in traditional CNT/epoxy composites [88] . This behavior can be attributed to the small thermal conductance of the nanotube-polymer interface, the high interfacial thermal resistance between CNTs and, by a reduction of the number of contact points between CNTs [88][89][90][91][92] , which limit considerably the heat transfer.…”

Section: Properties Of Bp/polymer Compositesmentioning

confidence: 99%

Carbon nanotube buckypaper reinforced polymer composites: a review

et al. 2017

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RbstractThis review provides valuable information about the general characteristics, processing conditions and physical properties of carbon nanotube buckypaper (BP) and its polymer composites. Vacuum filtration is the most common technique used for manufacturing BP, since the carbon nanotubes are dispersed in aqueous solution with the aid of surfactant. Previous works have reported that mechanical properties of BP prepared by vacuum filtration technique are relatively weak. On the other hand, the incorporation of polymer materials in those nanostructures revealed a significant improvement in their mechanical behavior, since the impregnation between matrix and BP is optimized. Electrical conductivity of BP/polymer composites can reach values as high as 2000 S/m, which are several orders of magnitude greater than traditional CNT/polymer composites. Also, BP can improve remarkably the thermal stability of polymer matrices, opening new perspectives to use this material in fire retardant applications.

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“…When radio frequency transparency is not required, conductive material is applied over exterior surface. To improve electromagnetic interference (EMI) and lightning strike resistance, conductive resins and single-walled carbon nanotube Buckypaper materials were introduced in composite materials ) with the permission from Materials Research Society) (Wang et al 2005a;Gonnet et al 2006;Park et al 2009). These Bucky-paper materials consisted of highly loaded and magnetically aligned CNTs whose conductivity changed linearly with temperature.…”

Section: Aerospace Coating Applicationsmentioning

confidence: 99%

Polymer and ceramic nanocomposites for aerospace applications

2017

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This paper reviews the potential of polymer and ceramic matrix composites for aerospace/space vehicle applications. Special, unique and multifunctional properties arising due to the dispersion of nanoparticles in ceramic and metal matrix are briefly discussed followed by a classification of resulting aerospace applications. The paper presents polymer matrix composites comprising majority of aerospace applications in structures, coating, tribology, structural health monitoring, electromagnetic shielding and shape memory applications. The capabilities of the ceramic matrix nanocomposites to providing the electromagnetic shielding for aircrafts and better tribological properties to suit space environments are discussed. Structural health monitoring capability of ceramic matrix nanocomposite is also discussed. The properties of resulting nanocomposite material with its disadvantages like cost and processing difficulties are discussed. The paper concludes after the discussion of the possible future perspectives and challenges in implementation and further development of polymer and ceramic nanocomposite materials.

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Thermal conductivity of magnetically aligned carbon nanotube buckypapers and nanocomposites

Cited by 197 publications

References 17 publications

Characterization and evaluation of carbon nanotube Bucky-Paper membranes for direct contact membrane distillation

Characterization and evaluation of carbon nanotube Bucky-Paper membranes for direct contact membrane distillation

Carbon nanotube buckypaper reinforced polymer composites: a review

Polymer and ceramic nanocomposites for aerospace applications

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