Evolution of the morphology and the mechanical properties of ternary PE/PA6/GF composites during annealing

Malchev, Plamen; Vos, G.; Norder, Ben; Picken, Stephen J.; Gotsis, A. D.

doi:10.1016/j.polymer.2007.08.037

Cited by 15 publications

(13 citation statements)

References 36 publications

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“…Similar nanoparticle-induced morphological changes were also observed in other systems [45,46]. The porous structures present in the emulsion gels were maintained during surfactant catalyzed polymerization because the low-temperature prevented the destabilizing polymer porous structures back to spheres [47,48].…”

Section: Role Of Surface Species In the Composite Morphologysupporting

confidence: 69%

Low-temperature polymerization of methyl methacrylate emulsion gels through surfactant catalysis

Tan

Regev

et al. 2016

Journal of Colloid and Interface Science

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Section: Role Of Surface Species In the Composite Morphologysupporting

confidence: 69%

Low-temperature polymerization of methyl methacrylate emulsion gels through surfactant catalysis

Tan

Regev

et al. 2016

Journal of Colloid and Interface Science

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“…The lower temperature used for sample preparation (which is below the melting point of the PA6 component) ensured that the morphology of the samples was preserved as formed within the extruder. This state was characterised by a rather weak PA6/ GF network [22]. The higher temperature, on the other hand, permitted further evolution of the morphology under quiescent conditions, driven by the minimisation of the interfacial energy of the system.…”

Section: Methodsmentioning

confidence: 95%

“…Malchev et al [22] obtained different morphologies and mechanical properties when the ternary composites were annealed above the melting point of the dispersed phase. Therefore, annealing provides an option to study the influence of the processing conditions (i.e.…”

Section: Methodsmentioning

confidence: 99%

“…It seems that there is no effect for the GF1 composites and a small reduction is seen upon annealing for the GF2 composites. More pronounced differences were reported at temperatures above the melting point of the PE [22]. Therefore, it is anticipated that, despite its little impact on the low temperature tensile modulus, the annealing can introduce substantial differences in the shape of the stress-strain curves and, therefore, in the properties at failure of the composites.…”

Section: The Tensile Modulusmentioning

confidence: 99%

“…1 shows a schematic of the formed network and a photograph of the glass fibers welded by PA6 after selective extraction of the matrix PE phase by a solvent. Further study [22] showed that in the GF1 containing composites a network of different strength can be obtained by annealing the material above the melting point of the dispersed phase for different time intervals.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical and fracture properties of ternary PE/PA6/GF composites

Malchev

Vos

Picken

et al. 2010

Composites Science and Technology

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Viscosity Ratio and Interfacial Tension as Carbon Nanotubes Distributing Factors in Melt‐Mixed Blends of Polyamide 12 and High‐Density Polyethylene

et al. 2014

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Polyamide 12 (PA12)/high-density polyethylene (PE)/carbon nanotubes (CNTs) composites were prepared by three melt mixing sequences; premixing the CNT in the PA phase, premixing the CNT in the PE phase, and simultaneous mixing of all components. The interfacial tension and viscosity ratio between the components were altered by modifying the PE minor phase with PE-graft-maleic anhydride (PE-g-MAH) and by using different melt flow rate PE minor phase. Scanning electron microscopy (SEM) and volume resistivity (VR) measurements show that when the matrix's viscosity is greater than that of the dispersed phase, simultaneous mixing and premixing the CNT in the PE phase form a unique microstructure that yields a VR that is 4-6 decades lower than when premixing the CNT in the PA phase. When the viscosity of the dispersed PE phase is greater, kinetic restrictions limit the migration of the CNTs from the PE phase, resulting in high VR values for all mixing procedures. The wetting parameter was used to calculate the thermodynamic drive of the CNTs localization. It was found that the MAH modification reduces the interfacial tension between the CNT and the modified PE phase, which results in selective localization of CNT in there rather than in the PA phase. This observation was confirmed in SEM imaging and also expressed in high VR values of these composites. C

show abstract

Evolution of the morphology and the mechanical properties of ternary PE/PA6/GF composites during annealing

Cited by 15 publications

References 36 publications

Low-temperature polymerization of methyl methacrylate emulsion gels through surfactant catalysis

Low-temperature polymerization of methyl methacrylate emulsion gels through surfactant catalysis

Mechanical and fracture properties of ternary PE/PA6/GF composites

Viscosity Ratio and Interfacial Tension as Carbon Nanotubes Distributing Factors in Melt‐Mixed Blends of Polyamide 12 and High‐Density Polyethylene

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