Results 241 to 250 of about 907,438 (295)
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Macromolecular Symposia, 2001
It is tried to examine briefly all the aspects of filler interactions with polymer ageing, including direct chemical (catalysis of degradation, stabilising effects) and physical (screen and thermooptical effects, modification of transport properties) interactions as well as indirect ones such as stabiliser trapping, influence on the rate of mechanical ...
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It is tried to examine briefly all the aspects of filler interactions with polymer ageing, including direct chemical (catalysis of degradation, stabilising effects) and physical (screen and thermooptical effects, modification of transport properties) interactions as well as indirect ones such as stabiliser trapping, influence on the rate of mechanical ...
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On the rheology of filled polymers
Journal of Rheology, 1990This paper develops a rheological model for flow of polymer compounds highly filled by small interacting (attractive) particles. The properties of the particle phase in the compound are described by introducing a viscoelastic ‘‘particle mode’’ with an additional kinetic equation which describes the processes of rupture and restoration of flocs of ...
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Physica A: Statistical Mechanics and its Applications, 1989
Abstract We review the electrical properties of polymers filled with conducting particles of various sizes and shapes. dc and ac experimental behaviors in the neighborhood of the familiar insulator to conductor transition are generally in fair agreement with the predictions of percolation theory.
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Abstract We review the electrical properties of polymers filled with conducting particles of various sizes and shapes. dc and ac experimental behaviors in the neighborhood of the familiar insulator to conductor transition are generally in fair agreement with the predictions of percolation theory.
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Particulate-filled glassy polymers
Journal of Applied Polymer Science, 1978Glass beads, NaCl crystals, or other imperfections act as stress concentrators in glassy polymers causing early crazing upon stressing. Stress–strain curves of glassy thermoplastic polymers filled with uncoupled glass beads or NaCl crystals exhibit a knee, or a slope-discontinuity point.
M. Narkis, E. Joseph
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1990
Published data, concerning the results of measuring rheological properties of polymer melts with rigid fillers, are discussed. The review is based mainly on the works of the 1980s. The effect of a filler's presence on three fundamental parameters of a material, namely yield stress, viscosity, and rubbery elasticity is considered.
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Published data, concerning the results of measuring rheological properties of polymer melts with rigid fillers, are discussed. The review is based mainly on the works of the 1980s. The effect of a filler's presence on three fundamental parameters of a material, namely yield stress, viscosity, and rubbery elasticity is considered.
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Magnetic powder filled polymers
IEEE Transactions on Magnetics, 1994The composite magnetic materials with commercial polymer matrix along with different magnetic fillers have been studied, with the aim of tailoring their properties. The measured magnetic parameters of the prepared samples have been compared by those calculated using a model in which the magnetic powder particles are surrounded by the thin layer of ...
J. Slama +3 more
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Polymer-filled nanoporous membranes
2021Recent studies in our laboratory have demonstrated the effect of nanostructure on proton conductivity. In this study, oriented nanostructured polymer membranes were fabricatedby conjoining an ion conductive polymer with nanoporous host membranes, which have uniform pores aligned normal to the plane of the membrane. The hypothesis of research is that by
Sunil Raghav, Yossef A. Elabd
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Misconceptions about filled polymers
Journal of Applied Polymer Science, 1974The idea that, with filled polymers, length fraction, area fraction, and volume fraction of filler are different appears to have gained wide acceptance. The fallacy of this, except for special directions in ordered arrangements, is demonstrated. This misunderstanding has led to widespread misinterpretation of experimental results in this field.
M. R. Piggott, J. Leidner
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Graphene Filled Polymers in Photovoltaic
2015Graphene—a two-dimensional lattice oriented monolayer of sp2-hybridized carbon atoms—has taken up considerable attention leading to a growing scientific interest due to its exceptionally high electrical conductivity (orders of magnitude higher than copper), optical transparency (>90 %), chemical robustness (more than 500 °C) and mechanical stiffness ...
Dipankar Barpuzary, Mohammad Qureshi
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Fatigue behaviour of filled polymers
Macromolecular Symposia, 1996AbstractThe fatigue resistance of any material is the combined resistance to crack initiation and then to crack propagation.1) In most of the cases, fillers act as strong cracks initiators. The Fatigue Crack Propagation can, under certain conditions, be improved (glass beads in epoxy) and this can be attributed to the crack front pinning mechanism ...
Jean Pierre Trotignon, Abbas Tcharkhtchi
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