Improving the thermal and mechanical properties of an alumina-filled silicone rubber composite by incorporating carbon nanotubes

Lin, Jia-long; Su, Shiming; He, Yan-bing; Kang, Feiyu

doi:10.1016/j.carbon.2020.04.054

Cited by 5 publications

(4 citation statements)

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“…In other studies, it has been observed that the density of the filling materials added to compounds increases the density of the compounds. [61][62][63] Another parameter considered in the evaluation of new compounds created with the addition of PNCA is hardness. When the results of the hardness test applied to the samples were examined, it was observed that the hardness of the compounds increased as the amount of PNCA increased.…”

Section: Physical-mechanical Propertiesmentioning

confidence: 99%

The crosslinking and mechanical properties of SBR compounds with the addition of carburized pine nut cone ash

Bülbül

Büyük

2022

Journal of Elastomers & Plastics

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In this study, four different pulps were prepared by adding 0%, 5%, 10%, and 15% carburized pine nut cone ash to a reference rubber compound based on styrene butadiene rubber (SBR). After vulcanization, the hardness, density, tensile strength, percentage elongation, tearing strength, and crosslink density of the compound were measured. In addition, the effects of the crosslink density on the mechanical properties were examined. The properties of the carburized pine nut cone ash compounds were evaluated both among themselves and comparatively with the physical and mechanical properties of the reference compound. In addition, it increased the hardness as well as the crosslink density, and it was shown to provide advantages in terms of its density, tensile strength, tearing strength, and percentage elongation properties. Furthermore, the fracture surfaces of the compounds were characterized via scanning electron microscopy and energy dispersion spectroscopy to explain the change in mechanical properties.

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Section: Physical-mechanical Propertiesmentioning

confidence: 99%

The crosslinking and mechanical properties of SBR compounds with the addition of carburized pine nut cone ash

Bülbül

Büyük

2022

Journal of Elastomers & Plastics

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“…19,20 Carbon-based materials are more easily dispersed and stable than metal nanoparticles in PCM, and have the advantages of lower density, less corrosion, and high thermal conductivity. Carbon materials can be divided into many dimensions: zerodimensional (0D) carbon materials such as fullerenes, onedimensional (1D) carbon materials like carbon nanotube 21 and carbon fiber, 22 two-dimensional (2D) carbon materials such as graphite, and three-dimensional (3D) carbon materials such as carbon foam. 23 Mochane et al 24 selected ethylene vinyl acetate (EVA) as the matrix, which is a polymer close to the properties of elastomer in terms of softness and flexibility.…”

Section: Introductionmentioning

confidence: 99%

Thermal properties of myristyl alcohol/polyvinyl butyral/carbon nanotubes as composite phase change materials for thermal energy storage

Cong

Zhang

et al. 2022

Intl J of Energy Research

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Summary Myristyl alcohol (MA)/polyvinyl butyral (PVB) composites with carbon nanotubes (CNTs) as composite phase change materials (CPCM) were synthesized by the solution blending method. MA was selected as phase change material (PCM) due to high latent heat. PVB was utilized as matrix to decrease leak of MA in molten state. CNTs were added into CPCM as thermal conductivity enhancer, which behave high thermal conductivity. A series of samples were prepared. The chemical and crystal structures of CPCM were analyzed by Fourier transform infrared spectroscopy and X‐ray diffractometer. The results showed that there was only physical adsorption and no chemical reaction during mixing process. The microstructure of CPCM was observed by scanning electron microscope. Differential scanning calorimetry, thermogravimetric analysis, and thermal conductivity meter were used to measure thermal properties of CPCM. The results indicated that S2 containing 80 wt% MA had latent heat value of 150.55 kJ/kg, the corresponding melting temperature was 52.03°C. CPCM has no thermal decomposition in the operating temperature range, so they have excellent stability. In addition, the thermal conductivity of S5 containing 6 wt% CNTs is 1.062 W/(m·K), which is increased by 4.65 times compared to that of S2. The melting latent heat of S5 is 147.50 kJ/kg, which is 97.97% of S2 melting latent heat.

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“…Importantly, the composites still maintained excellent mechanical and electrical insulation properties [28]. In addition to 0D Ag particles, Al2O3 fillers were also hybridized with 1D carbon fiber, carbon nanotubes, 2D BN or graphene to build a continuous heat conduction network [25,[29][30][31][32][33]. Thirdly, various preparation processes, such as high-temperature sintering and vacuum filtration, were employed to construct a continuous Al2O3 filler network structure in the matrix [34][35][36].…”

Section: Introductionmentioning

confidence: 99%

A Novel Branched Al2O3/Silicon Rubber Composite with Improved Thermal Conductivity and Excellent Electrical Insulation Performance

Ouyang

Tian

et al. 2021

Nanomaterials

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In this paper, we report a thermal conductive polymer composite that consists of silicone rubber (SR) and branched Al2O3 (B-Al2O3). Owing to the unique two-dimensional branched structure, B-Al2O3 particles form a continuous three-dimensional network structure by overlapping each other in the matrix, serving as a continuous heat conductive pathway. As a result, the polymer composite with a 70 wt% filler achieves a maximum thermal conductivity of 1.242 Wm−1 K−1, which is equivalent to a significant enhancement of 521% compared to that of a pure matrix. In addition, the composite maintains a high volume resistivity of 7.94 × 1014 Ω·cm with the loading of 70 wt%, indicating that it meets the requirements in the field of electrical insulation. Moreover, B-Al2O3 fillers are well dispersed (no large agglomerates) and form a strong interfacial adhesion with the matrix. Therefore, the thermal decomposition temperature, residual mass, tensile strength, modulus and modulus of toughness of composites are significantly improved simultaneously. This strategy provides new insights for the design of high-performance polymer composites with potential application in advanced thermal management in modern electronics.

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Improving the thermal and mechanical properties of an alumina-filled silicone rubber composite by incorporating carbon nanotubes

Cited by 5 publications

References 0 publications

The crosslinking and mechanical properties of SBR compounds with the addition of carburized pine nut cone ash

The crosslinking and mechanical properties of SBR compounds with the addition of carburized pine nut cone ash

Thermal properties of myristyl alcohol/polyvinyl butyral/carbon nanotubes as composite phase change materials for thermal energy storage

A Novel Branched Al2O3/Silicon Rubber Composite with Improved Thermal Conductivity and Excellent Electrical Insulation Performance

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