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Justification of the Manufacturing Plywood Technology on Dry Glues

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Abstract:

The use of environmentally safe technologies in the plywood production encourages the use of dry powder mixtures of polyester resin used for gluing veneer. The work presents the results of studies of some characteristics for plywood, which was product on the basis of polyester resin. As a result of experimental studies, the expediency of manufacturing plywood on dry adhesive mixtures of polyester resins has been substantiated. Since the limit of static bending strength along the fibers of the plywood face layers exceeds the standard value. The resistance to chipping on the glued layer of plywood also did not decrease and exceeds the standard value both after dry exposure and after soaking. The studied plywood is characterized by reduced moisture absorption properties. This is due to the thermal modification of the veneer. It was established that with an increase in the modification temperature to , moisture absorption decreases by more than 3.5 %. Thus, the obtained research results allow us to purposefully solve further problems related to the creation of new technologies for the wood products manufacture and to determine the conditions of their operation at various facilities.

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Periodical:

Key Engineering Materials (Volume 953)

Pages:

33-41

DOI:

https://doi.org/10.4028/p-b9KU9k

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Online since:

August 2023

Authors:

Serhii Mazurchuk*, Yuriy Tsapko, Oleksandra Horbachova, Oleksii Tsapko

Keywords:

Moisture Absorption, Plywood, Pressing Time, Strength Limit, Temperature

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© 2023 Trans Tech Publications Ltd. All Rights Reserved

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