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2013•Protection of Metals and Physical Chemistry of SurfacesRequires access

Regularities of the Rehbinder effect in polymers. Review

А. Л. Волынский, Н. Ф. Бакеев

Open publisher page 12 citations

Abstract

Data are analyzed that are related to particular details of manifestations of the Rehbinder effect in the case of polymer deformation in adsorption-active media (AAMs). It is shown that, as a result of such a deformation, a vitreous polymer is dispersed, forming a system of fibrillar aggregates of oriented macromolecules with a diameter of 1–20 nm separated in space by microcavities of similar size (the crazing phenomenon). It is shown that polymer crazing in AAMs is a complex multistage process. Its first stage is initiation of crazes related to the microscopic surface defect structure of the actual polymer and is controlled by the Griffith criterion. Craze growth and broadening are typical thermally activated processes of plastic deformation of the polymer. The main areas for practical application of the Rehbinder effect in polymers are pointed out.

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What this paper is about

Data are analyzed that are related to particular details of manifestations of the Rehbinder effect in the case of polymer deformation in adsorption-active media (AAMs). It is shown that, as a result of such a deformation, a vitreous polymer is dispersed, forming a system of fibrillar aggregates of oriented macromolecules with a diameter of 1–20 nm separated in space by microcavities of similar size (the crazing phenomenon). It is shown that polymer crazing in AAMs is a complex multistage process. Its first stage is initiation of crazes related to the microscopic surface defect structure of the actual polymer and is controlled by the Griffith criterion. Craze growth and broadening are typical thermally activated processes of plastic deformation of the polymer. The main areas for practical application of the Rehbinder effect in polymers are pointed out.

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Available abstract

Data are analyzed that are related to particular details of manifestations of the Rehbinder effect in the case of polymer deformation in adsorption-active media (AAMs). It is shown that, as a result of such a deformation, a vitreous polymer is dispersed, forming a system of fibrillar aggregates of oriented macromolecules with a diameter of 1–20 nm separated in space by microcavities of similar size (the crazing phenomenon). It is shown that polymer crazing in AAMs is a complex multistage process. Its first stage is initiation of crazes related to the microscopic surface defect structure of the actual polymer and is controlled by the Griffith criterion. Craze growth and broadening are typical thermally activated processes of plastic deformation of the polymer. The main areas for practical application of the Rehbinder effect in polymers are pointed out.

Key concepts: Crazing, Polymer, Materials science, Deformation (meteorology), Composite material, Macromolecule, Chemistry, Biochemistry

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Regularities of the Rehbinder effect in polymers. Review — Research Paper | ScholarLens