Chapter 35 Wood Preservation Trends in North America

摘要

This paper discusses recent trends in the wood preservation industry in North America. Particular emphasis is placed on the development of copper-rich second generation preservative systems, including problems (disposal, mold, copper leaching, and corrosion) and costs associated with the new systems. The effect of EPA restrictions on CCA is presented. Use and restrictions placed on current organic systems, especially creosote, are reviewed. Near and long term future directions for the wood preservation industry, including low level metallic systems, total organic preservative systems, combination systems, borates, the impact of substitute materials, and non-biocidal treatments such as polymer treatment, heat treatment, and chemical modification are covered. Finally, implications for new treatment processes and products such as engineered wood composites are presented.