Heat Propagation in Anisotropic Heterogeneous Polymer-CNT Composites

Vorobyeva, E. A.; Чеченин, Н.Г.; Makarenko, Irina V.; Кепман, А. В.

doi:10.3390/jcs1010006

Cited by 7 publications

(2 citation statements)

References 35 publications

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“…Based on this original idea, the prediction is that the defining material platform of the twenty-first century could very well be the hybrid, where two or more components are combined in a single material to give new and previously unattainable combinations of useful properties [1]. In this project, it must be taken into account that design of hybrid materials requires the use of building blocks, in particular those included in the nanotechnology field [1], such as dendritic polymers [2,3,4], carbon nanotubes [5,6,7], graphene [8,9,10], fullerene [11,12,13] and Polyhedral oligomeric silsesquioxanes (POSSs) [14,15,16]. The latter building block is the subject of this review.…”

Section: Introductionmentioning

confidence: 99%

The Rediscovery of POSS: A Molecule Rather than a Filler

Blanco

2018

Polymers

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Abstract:The use of polyhedral oligomeric silsesquioxanes (POSSs) for making polymer composites has grown exponentially since the last few years of the 20th century. In comparison with the other most commonly used fillers, POSSs possess the advantage of being molecules. Thus, this allows us to combine their nano-sized cage structures, which have dimensions that are similar to those of most polymer segments and produce a particular and exclusive chemical composition. These characteristics linked with their hybrid (inorganic-organic) nature allow researchers to modify POSS according to particular needs or original ideas, before incorporating them into polymers. In this present study, we first start with a brief introduction about the reasons for the rediscovery of these nanoparticles over the last 25 years. Starting from the form of POSS that is most widely used in literature (octaisobutyl POSS), this present study aims to evaluate how the reduction of symmetry through the introduction of organic groups favors their dispersion in polystyrene matrix without compromising their solubility.

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Section: Introductionmentioning

confidence: 99%

The Rediscovery of POSS: A Molecule Rather than a Filler

Blanco

2018

Polymers

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“…Also the development of composite materials using CNT as reinforcement took place. Matrices were polymers [24], ceramics [25] or metals [26]. CNT reinforced copper composites especially were investigated to increase the mechanical, thermal and electrical properties [27,28].…”

Section: Introductionmentioning

confidence: 99%

Heat Exchange Structures Based on Copper/CNT Composite

Schlott

Hutsch

Hampel

et al. 2019

KEM

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In this study different types of multi-walled carbon nanotubes (MWCNT) were produced by the fixed bed and aerosol chemical vapor deposition (CVD) method. Nanocomposite materials were prepared by incorporation of different MWCNTs in copper matrix using powder metallurgy methods. By using hot pressing in combination with hot extrusion, the orientation of the carbon reinforcement was tuned from 3D to 1D alignment. After a selective etching process the carbon reinforcement is partially free-standing at the composite surface, but still embedded in the metal matrix. The engineered surface acts almost like a black body. The spectral evaluation of the surface functionalization will be shown for wavelengths from 200 nm to 20 µm. These results are compared to bulk copper. The free-standing MWCNT also behave like fins/pins in heat exchanger structures or surface enhancement in pool boiling. The experimental setup will be explained and the measurement described for pure copper. The theoretical heat transfer coefficient of the engineered surface is calculated depending on diameter and length of the free-standing MWCNTs. The results are compared to bulk copper.

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