Bonding Flakeboards of Southern Species with Copolymer Resins of Forest and Agricultural Residue Extracts

Abstract

The gluability of copolymer resins containing alkaline extracts of southern pine bark, peanut hull, pecan shell flour, and pecan pith were evaluated for bonding southern pine, sweetgum, and yellow-poplar flakeboards. The internal bond and static bending test strength of laboratory flakeboards manufactured with such resins exceeds the minimum requirements of Canadian CSA 0437.0 standard for OSB and waferboard basic properties. However, these flakeboards did not meet the minimum requirements of dimensional stability because there was no wax or other additives added to protect the flakeboard from the hygroscopic nature of wood flakes