Modeling temperature regimes in producing reinforced thermoplasts by screw-disk extrusion

Bashtannik, P. I.; Ovcharenko, V. G.; Dvornichenko, V. B.; Kabak, A. I.

doi:10.1007/bf00616783

Cited by 2 publications

(1 citation statement)

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“…1. Schematic of the polymer extrusion through acircular cylindrical channel with arotating mandrel: stationary nozzle of adie (1), rotating mandrel (2), and extruding polymer melt (3) extrusion productivity is not affected by the speed regime for some polymers at all (Bashtannik et al, 1994).…”

Section: Introductionmentioning

confidence: 99%

Rheological Modeling of Polymeric Melts in Extruders upon Two-Dimensional Shear Flow

Hosseini

Aseyev

Berdyshev

et al. 2016

International Polymer Processing

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The rheological modeling of a polymer melt in the course of its extrusion through a circular cylindrical channel inside a shaping die equipped with a rotating mandrel and a rotating or stationary nozzle is investigated. This paper attempts to provide a detailed rheological description of the physical processes of a polymer melt based on Leonov model inside the channel of an extruder under its kinematic deformation upon two-dimensional shear flow. Based on the obtained rheological equations of state, the flow process can be described in a form of dependencies reflecting kinematics of complex polymer deformation in the die channel. These expressions allow estimation of the velocity distribution for the flow elements within the channel as well as of the flow-pressure characteristics of the process. A quantitative relation between flow characteristics, rheological properties of polymer, and technical parameters of the channel of an extruder was determined. Comparison of this theoretical model with experimental results validates the suggested model.

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Section: Introductionmentioning

confidence: 99%

Rheological Modeling of Polymeric Melts in Extruders upon Two-Dimensional Shear Flow

Hosseini

Aseyev

Berdyshev

et al. 2016

International Polymer Processing

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Effect of combined extrusion parameters on mechanical properties of basalt fiber-reinforced plastics based on polypropylene

Bashtannik¹,

Ovcharenko²,

Boot³

1997

Mech Compos Mater

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Basalt fibers are efficient reinforcing fillers for polypropylene because they increase both the mechanical and the tribotechnical properties of composites. Basalt fibers can compete with traditional fillers (glass and asbestos fibers) of polypropylene with respect to technological, economic, and toxic properties. The level of mechanical properties of reinforced thermoplastics depends on numerous factors. Two of them a~re the most important, namely the adhesive strength of a polymer-fiber system and the residual length of a reinforcing filler in the composite after processing [i, 2]. It is obvious that these factors depend on the technological features of introducing the fibers into the polymeric matrix. The method of combined (screw-disk) extrusion seems to be the most efficient for combining a polymeric binder with a reinforcing t

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Modeling temperature regimes in producing reinforced thermoplasts by screw-disk extrusion

Cited by 2 publications

References 0 publications

Rheological Modeling of Polymeric Melts in Extruders upon Two-Dimensional Shear Flow

Rheological Modeling of Polymeric Melts in Extruders upon Two-Dimensional Shear Flow

Effect of combined extrusion parameters on mechanical properties of basalt fiber-reinforced plastics based on polypropylene

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