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INTENSIVE TECHNOLOGY OF CREATION OF THE HIGH-STRENGTH AND MOISTURE RESISTANT PLYWOOD MATERIALS

Ruslan Safin

First published: 2017-06-20https://doi.org/10.5593/sgem2017/62/s26.030View metrics

Abstract

The increased requirements to the strength of products from glued wood, in particular to plywood are imposed at the modern wood processing factories. The data on the development of high-strength plywood materials with the use of new intensive technologies are presented in the article. For creation of high-strength plywood polarization is used in the course of production of plywood. Polarization was carried out by means of fixed electric field. It is revealed that process of polarization exerts positive impact on adhesive properties and moisture resistance of plywood materials. It is determined that processing of a polymeric component of glue and of not cured plywood samples by fixed electric field raises its gluing capabilities. The plywood samples obtained by this technology have higher strength. Increase in strength and moisture resistance is explained by change of structure towards streamlining of an arrangement of its elements and reduction of interatomic distance. These structural changes promote removal of internal stresses and transition of atoms to more profitable energy condition. Change of structure of the glue modified by electric field is followed by creation of plywood of the increased strength. The plywood samples polarized in fixed electric field are more resistant to delamination, buckling and keep the integrity in humid environments longer.

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Publication details

Title
INTENSIVE TECHNOLOGY OF CREATION OF THE HIGH-STRENGTH AND MOISTURE RESISTANT PLYWOOD MATERIALS
Authors
Ruslan Safin
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Nano, Bio and Green - Technologies for a Sustainable Future
Publisher
STEF92 Technology
Year
2017
Pages
231-238
SWS Citekey
Safin201726231238
ISSN
1314-2704
ISBN
978-619-7408-13-3
Language
en
Publication type
Conference Paper
Keywords
plywoodpolarizationelectreturea-formaldehyde resinepoxide resinpolyvinyl acetatestrengthDC fieldmoisture absorptionwater absorption.
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