Preparation and characterization of conductive carbon nanotube-polyurethane foam composites

You, Kyung Min; Park, Sang Sun; Lee, Choon Soo; Kim, Ji Mun; Park, Gun Pyo; Kim, Woo Nyon

doi:10.1007/s10853-011-5645-y

Cited by 69 publications

(34 citation statements)

References 27 publications

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“…Thereinto, the thermal conductivity of carbon foam with 2 wt% m-MWCNTs additive amount reaches approximately 25.01 W/m K at room temperature, increased by 25.8 % compared with that of the plain carbon foam. The thermal conductivity of composites is mainly influenced by cell density and thermal conductivity of raw materials [27,28]. The appropriate m-MWCNTs could improve the thermal conductivity of carbon foams because of their excellent thermal conductivity.…”

Section: Thermal Conductivity Of Carbon Foamsmentioning

confidence: 99%

Effect of multi-walled carbon nanotube additive on the microstructure and properties of pitch-derived carbon foams

Liu

Huang

et al. 2015

J Mater Sci

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The multi-wall carbon nanotube-reinforced carbon foams were prepared via foaming, carbonization, and graphitization process using pretreatment pitches as matrix precursor and modified multi-wall carbon nanotube as additive. The effects of modified multi-wall carbon nanotube additive amount on the microstructure, mechanical strength, thermal conductivity, and electrical conductivity of carbon foams were investigated by X-ray diffraction, scanning electronic microscopy, universal testing machine, laser thermal conductivity tester, and fourprobe resistance meter, respectively. It was found that the introduction of modified multi-wall carbon nanotube had a significant effect on the microstructure of carbon foams. The compressive strength and electrical conductivity of carbon foams increased with the increase of modified multiwall carbon nanotube additive amount, the maximum were 11.72 MPa and 28.89 9 10 3 S/m, respectively. However, the thermal conductivity of carbon foams increased firstly with increasing modified multi-wall carbon nanotube additive amount up to 2 wt%, and then decreased.

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Section: Thermal Conductivity Of Carbon Foamsmentioning

confidence: 99%

Effect of multi-walled carbon nanotube additive on the microstructure and properties of pitch-derived carbon foams

Liu

Huang

et al. 2015

J Mater Sci

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“…Arcol Polyol 1108 (Bayer Materials Science) is a trifunctional polyether polyol used in the production of polyurethane products; it has a hydroxyl number of 48 ± 2 mg KOH/g (according to PET-11-01), a maximum water content of 0.1 % by wt. (according to PET-19-01), its density at 20°C is approximately 1.02 g/cm 3 (according to DIN 51757) and it has a viscosity at 25°C of 675 ± 80 mPa*s (according to PET-10-01). Toluene diisocyanate (TDI), surfactants and catalyst were obtained from Zachem S.A.…”

Section: Methodsmentioning

confidence: 99%

“…They are commonly used in mattresses, chairs, couches, cleaning products, car and aircraft upholstery [1][2][3][4][5]. These foams have many advantages such as wide range of flexibility and hardness, good cushioning, high durability in use, ease of moulding, assembly and joining, low density and hence low price.…”

Section: Introductionmentioning

confidence: 99%

Influence of graphite and wood-based fillers on the flammability of flexible polyurethane foams

2012

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The aim of this work was to verify the influence of graphite and wood-based fillers on the flammability of flexible polyurethane foams (FPF). Expandable graphite (EG) and cellulose (C) fillers were added to FPFs to improve their thermal stability and reduce their flammability. Four types of foams have been compared: FPF, FPF with the addition of EG, FPF with the addition of C and FPF with the addition of both fillers. Linear flammability tests and pyrolysis combustion flow calorimetry (PCFC) were performed to assess the flammability of these materials. It was found that the addition of cellulose does not improve the fire reaction, but a combination of both the EG and C fillers mixed together was able to achieve a small reduction in flammability, as confirmed by a linear flammability test and PCFC. The best properties observed by PCFC were from FPFs with EG. Usage of cellulose filler separately is not a good method for the assessment of higher thermal stability and lower flammability of FPFs. Thermal properties were measured by thermogravimetric analysis and dynamic mechanical analysis. These results showed that especially EG addition allows to achieve a positive effect on the thermal stability of the tested materials. Mechanical and physical tests (density, hardness, flexibility and irreversible strain) showed that the presence of graphite or cellulose filler results in changes in the properties of the FPFs, but these changes are not extensive. Fourier transform infrared spectroscopy analysis showed that only small changes exist in the chemical structure with the addition of the fillers. The introduction of EG and EG?C fillers into an FPF may reduce its flammability.

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“…The first work was done with polymer matrices, and this produced a significant improvement in many of their physical and functional properties, e.g. [4][5][6] Following the research on polymer composites and the availability of techniques such as spark plasma sintering (SPS), which allows rapid high temperature processing without degrading the CNTs, ceramic-CNT composites have been more recently studied, e.g. [7][8][9][10][11][12][13][14][15][16] The addition of CNTs has been reported to reduce the grain size of Al 2 O 3 ceramics whilst increasing their density.…”

Section: Introductionmentioning

confidence: 99%

The effect of carbon nanotubes on the sintering behaviour of zirconia

Milsom

Viola

Gao

et al. 2012

Journal of the European Ceramic Society

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Preparation and characterization of conductive carbon nanotube-polyurethane foam composites

Cited by 69 publications

References 27 publications

Effect of multi-walled carbon nanotube additive on the microstructure and properties of pitch-derived carbon foams

Effect of multi-walled carbon nanotube additive on the microstructure and properties of pitch-derived carbon foams

Influence of graphite and wood-based fillers on the flammability of flexible polyurethane foams

The effect of carbon nanotubes on the sintering behaviour of zirconia

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