Physical-mechanical properties of high durability plywood panels: comparative study of productive processes and performance

• Grant number: 19/02220-4
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: April 01, 2019
• End date: March 31, 2020
• Field of knowledge: Agronomical Sciences - Forestry Resources and Forestry Engineering - Technology and Use of Forest Products
• Principal Investigator: Adriano Wagner Ballarin
• Grantee: Gabriel Francisco D'Elaqua dos Santos
• Host Institution: Faculdade de Ciências Agronômicas (FCA). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil

Abstract

The plywood panel has traditional uses in civil construction, in the furniture, bus, truck, railroad car and container industries. More recently, its use in civil construction has been expanded as raw material for components of the Wood Frame housing construction system, which has potential and a growing market. As well as any wood-based product, plywood is susceptible to degradation - deterioration by fungi, termites and drills - to a greater or lesser extent when exposed to adverse conditions such as excessive moisture or soil contact; this problem is particularly important in some of applications cited. In Brazil, almost all the plywood does not receive a preservative treatment in order to extend its durability. The treatment can be done directly in the ready-made panel, a method that can cause a decrease in the physical-mechanical performance of the product, or incorporated in the production process, by the treatment of the veneers in the pre-production phase of the panel. In the literature there are few reports about the previous treatment of veneers, citing only its feasibility in plywood or testing it on other types of panels. The objective of this work was to study physical and mechanical performance of commercial plywood with two preservatives (CCA and CCB) using two different treatment processes (panel and veneer treatment).