Knowledge Base

The use of thin layer chromatography for determining phenolic intermediates is discussed. A specific use for thin layer chromatography is given in which actual reactions are analyzed. The effect of varying the formaldehyde-phenol ratio is shown. The use of reaction variables in ""tailoring"" phenolic resins for changing requirements is shown to be...

In 1956 insulation board, hardboard, and particleboard production had increased 25 percent, 65 percent, and 51 percent, respectively, over 1948 figures. Insulation board, produced in 23 U.S. and three Canadian plants, chiefly from pulpwood, is used as interior board, sheathing, and roof insulation board. Increasing demand for acoustical board,...

In 1958 the National Lumber Association established the National Wood Promotion Program to stimulate increased use of wood in the construction industry, representing about 74 percent of the lumber market. Four basic causes of the lumber decline gave rise to the NLMA National Wood Promoting Program: out-promotion by competition; consumers' loss of...

Fifteen samples of glue extender flours collected from Asian plywood plants in the Philippines, Japan, Korea, and Taiwan during the HPMA Orient Study Tour in October 1973 were analyzed. The plywood plants visited were large, operating at high production rates with modern, efficient equipment; one of the largest plywood plants in the world, in...

C O N T E N T S REVIEWED ART I C L E S -156 An International Termite Field Test of Wood Treated with Insecticides in a Buffered Amine Oxide Carrier by Paul Ian Morris, J. Kenneth Grace, Tsuyoshi Yoshimura, and Kunio Tsunoda -161 Characterization and Variation of Essential Oil from Pinus taeda and Antimicrobial Effects against...

C O N T E N T S S P E C I A L I S S U E 4-Introduction to Special Issue: Wood Adhesives: Past, Present, and Future by Charles R. Frihart REVIEWED ART I C L E S 9-Wood as Polar Size Exclusion Chromatography Media: Implications to Adhesive Performance by Christopher Hunt, Jane O’Dell, Joseph Jakes, Warren J. Grigsby, and Charles R....

C O N T E N T S 307 Fifty-Year Durability Evaluation of Posts Treated with Industrial Wood Preservatives by Stan Lebow, Patricia Lebow, Bessie Woodward, Grant Kirker, and Rachel Arango 314 Use of Acoustic Assessment to Detect Decay and Assess Condition of Wooden Guardrail Posts by Arijit Sinha, Jeffrey J. Morrell, and Milo Clauson 320...

C O N T E N T S 4 Exterior Decay of Wood–Plastic Composite Boards: Characterization and Magnetic Resonance Imaging by Rebecca Ibach, Grace Sun, Marek Gnatowski, Jessie Glaeser, Mathew Leung, and John Haight 18 Synthesis and Characterization of Bio-Based Phenol-Formaldehyde Resol Resins from Bark Autoclave Extractives by Yong Zhao, Ning...

C O N T E N T S 384 - Paying for What You Get: Accounting for the Nonrenewable Component in Wood to Energy by Janez Krcˇ, Adam Taylor, and Donald Hodges 391 - A Linear Programming Optimization Model of Woody Biomass Logistics Integrating Infield Drying as a Cost-Saving Preprocess in Michigan by Yingqian Lin, Fei Pan, and Ajit...

4 Rapid Screening of Sulfuryl Fluoride as a Potential Phytosanitary Treatment for a Broad Selection of Fungi Relevant to Forestry by Adnan Uzunovic, Ananya Mukherjee, Peggy Elder, and Scott W. Myers 13 Ten-Year Performance of Stakes and Decking Treated with Copper Azole Type B and Alkaline Copper Quat Type D (Carbonate) by Paul Ian Morris, Rod...

FEATURE 404 Peter Koch, A Man and His Legacy Richard F. ‘‘Dick’’ Baldwin REVIEWED ARTICLES 408 Changes in Eastern US Sawmill Employment and Estimated Hardwood Lumber Production from 2001 to 2015 by William G. Luppold and Matthew S. Bumgardner 416 Wood Quality of Old-Growth Koa Logs and Lumber by Janice K. Wiedenbeck and Eini...

[Technical Note] Decay of Thermally Modified Engineered Wood Products by H. M. Barnes, M. D. Aro, and Amy Rowlen Characteristics of Volatile Organic Compounds Released from Various Types of Decorative Particleboards by Jiang Liqun, Shen Jun, Li Hongwei, Shen Xiwei, and Dong Huajun Evaluation of Phenol-Formaldehyde Resins Modified and Blended...

To determine the economic feasibility of using small logs for dimension products, the costs of producing 4/4 dimension lumber from black walnut, black cherry, and yellow-poplar in dimension mills with 8, 2, and 1 MM BF input capacity were analyzed. Internal rates of return varied from 13 to 94 percent and were greater for the higher valued species...