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Filtering by: Alt title Preparing wood specimens for mounting (105L) Remove constraint Alt title: Preparing wood specimens for mounting (105L) Academic Affiliation Wood Science and Engineering Remove constraint Academic Affiliation: Wood Science and Engineering

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  • Hygro-mechanical response of clear softwood specimens to compression under cyclic climate

    Creator:
    Guo, Ning
    Abstract:
    Hygro-mechanical effect is a general term applied to all phenomena that involves interaction between moisture content and mechanical characteristics of hygroscopic materials by analogy to thermo-mechanical effects. The hygromechanical effects include (but are not limited to) free shrinkage/swelling, effect of moisture on elastic modulus, strength, creep, failure mechanisms, and mechano...
    Resource Type:
    Masters Thesis
    Full Text:
    distribution accounted for Size [mm], # of specimens reference Wood beam reinforced by FRP

  • Defining Project‐Specific Custom CLT Grade Utilizing Low‐Value Ponderosa Pine Lumber from Logs Harvested in SW Oregon and Northern California Forest Restoration Programs

    Creator:
    Jahedi, Sina
    Abstract:
    Restoration programs effectively prevent or mitigate wildfires and pest outbreaks in the forest lands. The most common approach is to selectively harvest smaller and dead trees in order to preserve larger and superior trees. Ponderosa pine, Pinus ponderosa, (PP) lumber is one of the common species harvested from restoration programs...
    Resource Type:
    Dissertation
    Full Text:
    Figure X. 6, Delamination specimens placed on the oven for the dry cycle. ........... 104 Figure X. 7

  • Development of an Accelerated Method for Assessing Decay of Wood Plastic Composites (WPC's)

    Creator:
    Silva Guzman, Jose Antonio
    Abstract:
    This study examined the decay resistance of the pine and maple components of wood plastic composites (WPC' s) of varying thicknesses exposed on several culture media to wood decay fungi under laboratory conditions. The ability of malt agar extract (MEA), potato dextrose agar (PDA), amended basal salts, sawdust (maple and...
    Resource Type:
    Dissertation
    Full Text:
    Combinations of wood species, specimen thicknesses, exposure periods and test fungi for assessing moisture

  • Investigation of new compatibilizer systems for wood-polyethylene composites

    Creator:
    Geng, Yu
    Abstract:
    Wood-plastic composites (WPCs) are one of the fastest-growing sectors of the wood composites industry. However, the strengths of WPCs are typically low because of the poor interfacial adhesion between hydrophilic wood and hydrophobic thermoplastics. A compatibilizer that can form bridges between wood and plastics is required to give WPCs desirable...
    Resource Type:
    Dissertation
    Full Text:
    Compatibilizer Systems for Wood-Polyethylene Composites Abstract approved: Kaichang Li John Simonsen Wood

  • Copper compounds for durable composites : effects on material properties

    Creator:
    Vidrine, Cheney L.
    Abstract:
    The effects of incorporation of selected biocides on physical and mechanical properties of aspen strandboard were assessed using five copper-based preservatives or zinc borate at three retention levels. Tebuconazole or 4,5-dichloro-2-N-octyl-4-isothiazolin-3-one (DCOI) were added as co-biocides to selective copper-based treatments. Mold box tests showed that only panels treated with DCOI...
    Resource Type:
    Masters Thesis
    Full Text:
    Cheney L. Vidrine for the degree of Master of Science in Wood Science presented on June 19, 2008. Title

  • Development and characterization of new formaldehyde-free soy flour-based adhesives for making interior plywood

    Creator:
    Huang, Jian
    Abstract:
    Formaldehyde-based adhesives such as urea-formaldehyde (UF) and phenol-formaldehyde (PF) adhesives dominate the current wood adhesive market. However, these adhesives are derived from petrochemicals and carcinogenic formaldehyde. In this study, we developed two formaldehyde-free adhesives based on abundant, renewable, and inexpensive soy flour (SF). The first adhesive was mainly composed of...
    Resource Type:
    Masters Thesis
    Full Text:
    OF THE THESIS OF Jian Huang for the degree of Master of Science in Wood Science presented on

  • Evaluation of new formaldehyde-free, soy flour-based wood adhesives for making particleboard

    Creator:
    Gu, Kai
    Abstract:
    Formaldehyde-based adhesives such as urea-formaldehyde (UF), phenol-formaldehyde (PF) are widely applied in wood-based composite industry. However, these adhesives are all petrochemical-based and could not sustain in a long term due to a limited reserve of oil and natural gas. Moreover, these adhesives emit carcinogenic formaldehyde in the production or use...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Kai Gu for the degree of Master of Science in Wood Science

  • A comparative analysis of extracted fungal pigments and commercially available dyes for colorizing textiles

    Creator:
    Hinsch, Eric M.
    Abstract:
    With the resurgence in the interest of using natural textile dyes, a solution must be found that will overcome the limitations of traditional natural dyes. This solution must also be safer for both humankind and the environment than are synthetic dyes. This study compares the colorfastness of commercially available synthetic...
    Resource Type:
    Masters Thesis
    Full Text:
    sincere appreciation to the Department of Wood Science & Engineering for its collective support during

  • Multi-scale Investigation of Adhesive Bond Durability

    Creator:
    McKinley, Paige Elizabeth
    Abstract:
    Moisture durability is essential for wood composites, especially those used in building construction, where products are prone to weathering. The primary focus of this research was to determine if adhesive penetration into the cell wall has a positive influence on adhesive bond durability. To fully understand the measureable effects of...
    Resource Type:
    Masters Thesis
    Full Text:
    ABSTRACT OF THE THESIS OF Paige Elizabeth McKinley for the degree of Master of Science in Wood Science

  • Improving wood strength and stiffness through viscoelastic thermal compression

    Creator:
    O'Connor, John P.
    Abstract:
    The objective of this research project was to increase the density, strength, and stiffness of two low to medium-density diffuse-porous hardwood species. Wood used in this study was processed using a method of wood densification known as “Viscoelastic Thermal Compression” (VTC). The VTC process is a three phase treatment which...
    Resource Type:
    Masters Thesis
    Full Text:
    . O’Connor for the degree of Master of Science Degree in Wood Science presented on May 29, 2007 Title