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  1. Mechanical properties of small-scale laminated wood composite poles: effects of taper and webs

    Laminated hollow wood composite poles represent an efficient utilization of the timber resource and a promising alternative for solid poles that are commonly used in the power transmission and telecommunication lines. The objective of this study was to improve the performance of composite poles by introducing the bio-mimicry concept into the design of hollow wood...

    Author(s):
    Cheng Piao; Todd F. Shupe; R.C. Tang; Chung Y. Hse
    Year:
    2006
    Keywords:
    Cantilevered static bending, mechanical properties, taper, wood poles
    Source:
    Wood and Fiber Science, Vol. 38(4): 633-643

  2. Laminating wood fiber mats into a densified material with high performance

    To develop high-performance wood materials, a novel preparation strategy is presented in this study. Wood fiber mats impregnated with phenolic resin, were laminated into a densified material. Wood lumens collapsed layer by layer during densification, leading to a compact multi-layered structure. The densified material had excellent mechanical properties and favorable...

    Author(s):
    Jinguang Wei; Fei Rao; Yahui Zhang; Wenji Yu; Chung Hse; Todd Shupe
    Year:
    2019
    Keywords:
    Composite materials, Wood fiber mats, Microstructure, Mechanical properties, Water resistance
    Source:
    Materials Letters

  3. Soy adhesives that can form durable bonds for plywood, laminated wood flooring, and particleboard

    Synthetic adhesives, including urea-formaldehyde (UF) and phenol-formaldehyde (PF), have generally replaced biobased adhesives over the past 70 years because of their durability, low cost, and ease of use. However, in the past few years, concern about formaldehyde emissions, cost, and interest in biobased materials have renewed interest in soy adhesives. The use of soy...

    Author(s):
    Charles R. Frihart; Michael J. Birkeland; Anthony J. Allen; James M. Wescott
    Year:
    2010
    Keywords:
    Formaldehyde, particle board, soy flour, adhesives, testing, soybean glue, adhesion, composite materials, glue, plywood, urea-formaldehyde resins, laminated wood, wooden flooring, crosslinking, soy proteins, water repellents, viscosity, durability, bonding, composite wood, gluing, bond strength, failure, denaturation
    Source:
    Proceedings of the International Convention of Society of Wood Science and Technology and United Nations Economic Commission for Europe--Timber Committee, October 11-14, 2010, Geneva, Switzerland. [S.l. : s.n.], 2010: 12 p.

  4. Condensed tannin-resorcinol adducts and their use in wood-laminating adhesives: An exploratory study

    The reaction of a tannin extract (containing about 30% carbohydrate) from loblolly pine (Pinus taeda L.) bark (two parts) and resorcinol (one part) at 120°C for 24 h with acetic acid catalyst gave a product containing predominantly oligomeric procyanidin-4-resorcinol adducts (39%), unreacted resorcinol (22%), carbohydrate (20%). the resorcinol adduct...

    Author(s):
    Richard W. Hemingway; R.E. Kreibich
    Year:
    1984
    Keywords:
    Source:
    Journal of Applied Polymer Science: Applied Polymer Symposium 40:79-90

  5. Adhesives with wood materials : bond formation and performance

    Adhesive bonding of wood plays an increasing role in the forest products industry and is a key factor for efficiently utilizing our timber resource. The main use of adhesives is in the manufacture of building materials, including plywood, oriented strandboard, particleboard, fiberboard, structural composite lumber, doors, windows and frames, and factory-laminated wood...

    Author(s):
    Charles R. Frihart; Christopher G. Hunt
    Year:
    2010
    Keywords:
    Adhesives, adhesion, glue, mechanical properties, wood moisture, moisture, porosity, wood density, density, joints, standards, gluing, bonding, wood bonding, moisture content, durability, dimensional stability, bond strength, surface properties, physical properties, wood strength, strength
    Source:
    Wood handbook : wood as an engineering material: chapter 10. Centennial ed. General technical report FPL ; GTR-190. Madison, WI : U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 2010: p. 10.1-10.24.
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