The Influence of Multilayer Formation on Strength, Deformation and Fracture Toughness Characteristics of Board

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UDС

676.273.2

DOI:

10.17238/issn0536-1036.2017.6.160

Abstract

Multilayer formation improves many strength properties of cardboard. The goal of research is to study the multilayer formation of cardboard as one of the factors of increasing and regulating its strength, deformability and fracture toughness. Smolin A.S. and Aksel'rod G.Z. carried out similar studies with respect to the mass types of cardboard in the 90's in the last century. The authors of the paper pay particular attention to the current characteristics of packaging cardboard types: compressive strength by the SCT method, internal bond strength (Scott type), and fracture toughness. The paper presents the test results of model cardboard samples of a wide range of fiber furnish using both primary (bleached and unbleached) normal and high yield semi-finished products and secondary fibers. The multilayer formation modeling, which allows us to change physico-mechanical characteristics purposefully and to obtain materials with prescribed useful qualities, is demonstrated.

Authors

V.V. Gorazdova, Postgraduate Student
E.V. Dernova, Candidate of Engineering Sciences, Associate Professor

Affiliation

Northern (Arctic) Federal University named after M.V. Lomonosov, Naberezhnaya Severnoy Dviny, 17, Arkhangelsk, 163002, Russian Federation; e-mail: v.gorazdova@narfu.ru, e.dernova@narfu.ru

Keywords

combined cardboard, high-yield pulp, semichemical pulp, hardwood and soft-wood bleached pulp, waste paper, strength, deformability, fracture toughness

For citation

Gorazdova V.V., Dernova E.V. The Influence of Multilayer Formation on Strength, Deformation and Fracture Toughness Characteristics of Board. Lesnoy zhurnal [Forestry journal], 2017, no. 6, pp. 160–169. DOI: 10.17238/issn0536-1036.2017.6.160

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Received on September 16, 2017