Wood Enhancement Treatments I. Impregnation of Southern Yellow Pine with Melamine-Formaldehyde and Melamine-Ammeline-Formaldehyde Resins

Abstract

Abstract Southern yellow pine (SYP) was impregnated with melamine-formaldehyde (MF) or melamine-ammeline-formaldehyde (MAF) resins. The dimensional stability, strength properties, weathering, fire resistance and chemical resistance of the impregnated wood were examined. The wood treated with two commercial MF resins or with a synthesized MAF resin exhibited greatly enhanced dimensional stability, fire resistance and resistance to weathering. The chemical resistance increased moderately. Notes American Society for Testing and Materials, 1986, Standard Methods for Heat and Visible Smoke Release Rate for Materials and Products, Annual Book of Standard, ASTM E906–86, Philadephia, PA. American Society for Testing and Materials, 1992, Standard Methods for Specific Optical Density of Smoke, Annual Book of Standard, ASTM E662–92, Philadephia, Pa. American Society for Testing and Matyerial, 1990, Standard Methods for Surface Flammability of Materials Using a Radiant Heat Energy source, Annual Book of Standard, ASTM E162–90, Philadephia, Pa. American Society for Testing and Materials, 1970, Standard Recommended Practice for Operation Light- and Water-Exposure Apparatus (Xenon-Arc Type) for Exposure of Nonmetallic Materials, Annual Book of Standard, ASTM G26–70, Philadephia, Pa; MIL STD 810 E, Procedure II. Enviromental Test Methods and Engineering Guidelines, 14 July 1989.