High Density Polyethylene/Carbon Nanotube Nanocomposite Foams: Electrical Conductivity And Percolation Threshold

Hoang, Linh Trong; Aghelinejad, Mohammad Mohsen; Leung, Siu N.; Zhu, Zheng

doi:10.25071/10315/35413

Cited by 1 publication

(2 citation statements)

References 12 publications

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“…Using nanoclay to develop the physical and mechanical properties and cell nucleation in polymeric foams has been reported by some authors. [13][14][15] Hoang et al 16 prepared high-density polyethylene/CNT nanocomposite foam and studied the effect of physical foaming on the nanocomposite's percolation threshold and electrical properties. They showed that the electrical conductivity of foamed samples was meaningfully higher than that of solid nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and properties of silane cross-linked polyethylene nanocomposite foams: The effect of silane and nanoclay type and content

Zallaghi,

Joupari,

Azizi

et al. 2023

Polymers and Polymer Composites

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In this study, silane grafted and moisture cross-linked low density polyethylene nanocomposite foams were prepared by melt mixing and batch foaming process and the effects of silane content, nanoclay content, foaming agent concentration and clay type (clay modified with vinyltriethoxysilane (VTES) and amino-propyltriethoxysilane on foaming efficiency and foam properties were investigated. The morphology and the efficiency of silane modification of modified clay were characterized by series of tests, including X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, and thermogravimetric analysis (TGA). The results of Fourier transform infrared and thermogravimetric analysis showed that the silane modifiers were bonded to the surface of nanoclay through both physical and chemical bonds. According to XRD, these modifiers caused characteristic peak of clay to shift to lower angles, and make an increase in basal spacing. Gel content, density, scanning electron microscopy, compression, creep and rheological tests were used to determine the effect of different parameters on properties of cross-linked polyethylene foams. Results indicated that silane content has the significant effect on stress-strain behavior in compression mode. Compression set and creep deformation were affected by cell size and gel content. Furthermore, the rheological properties including complex viscosity, storage and loss modulus of unformed samples increased with the addition of silane and nanoclay content.

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Section: Introductionmentioning

confidence: 99%

“…Hoang et al 16 prepared high-density polyethylene/CNT nanocomposite foam and studied the effect of physical foaming on the nanocomposite’s percolation threshold and electrical properties. They showed that the electrical conductivity of foamed samples was meaningfully higher than that of solid nanocomposites.…”

Section: Introductionmentioning

confidence: 99%