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Filtering by: Creator Siuslaw National Forest Remove constraint Creator: Siuslaw National Forest License All rights reserved Remove constraint License: All rights reserved Subject Wood -- Bonding Remove constraint Subject: Wood -- Bonding

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  • 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:
    previously tested lap-shear samples and scanned at the Advanced Photon Source (APS), Argonne National

  • Formaldehyde-free wood adhesives from soybean protein and lignin : development and characterization

    Creator:
    Liu, Yuan
    Abstract:
    Presently, the production of wood composites relies on the formaldehyde-based wood adhesives such as phenol-formaldehyde (PF) and urea-formaldehyde (UF). However, their dependence on exhaustible fossil fuels and the emission of carcinogenic formaldehyde prompt to develop an environmentally friendly adhesive from renewable natural resources. This work focuses on development and characterization...
    Resource Type:
    Dissertation
    Full Text:
    last four years. I would like to acknowledge the financial support from the National Research

  • Characterization of load transfer in wood-based composites

    Creator:
    Schwarzkopf, Matthew John
    Abstract:
    The mechanical performance of composite materials is determined by the mechanical properties of their individual components and the effective load transfer between these components. Binders are commonly used to bond composite components together and to provide effective load transfer between them. In wood-based composites the binder-component load transfer occurs at...
    Resource Type:
    Dissertation
    Full Text:
    sincere appreciation to the USDA National Research Initiative Grant Program; Award No. 2008-35504-19227

  • Development and evaluation of a new formaldehyde-free wood adhesive from renewable materials for making interior plywood

    Creator:
    Jang, Yonghwan
    Abstract:
    Synthetic adhesives, such as phenol-formaldehyde (PF) resins and urea-formaldehyde (UF) resins, have dominated the wood adhesive market since they were introduced in the wood products industry. Formaldehyde, as a key component in the manufacturing of PF and UF resins, has been classified as a known human carcinogen by the International...
    Resource Type:
    Masters Thesis
    Full Text:
    composite products With the scarcity of forest resources, especially timber resources, corresponding to

  • 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

  • Effective Bonding Parameters for Hybrid Cross-Laminated Timber (CLT)

    Creator:
    Larkin, Blake
    Abstract:
    Cross-laminated timber (CLT) is a massive engineered wood product made of orthogonally bonded layers of solid-sawn lumber, and is intended for roof, floor, or wall applications. Although it was developed in Europe in the early 90s, CLT is relatively new to North America. CLT products must be certified for structural...
    Resource Type:
    Masters Thesis
    Full Text:
    , the USDA Forest Products Laboratory, the American Wood Council, APA, WoodWorks, and Forestry

  • 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:
    ]. Additionally, US Environment Protection Agency (EPA) is also considering regulatory action on the national

  • A new method of making particleboard with a formaldehyde-free soy-based adhesive

    Creator:
    Prasittisopin, Lapyote
    Abstract:
    Particleboard is widely used for making bookshelf, furniture, cabinets and many other interior products. At present, particleboard is mainly produced with wood particles and urea-formaldehyde (UF) resins. The emission of carcinogenic formaldehyde in the production and use of particleboard has generated an urgent need for development of a formaldehyde-free wood...
    Resource Type:
    Masters Thesis
    Full Text:
    forest product industry and have been a main solution in the efficient utilization of woody materials

  • Quantification of resin efficiency in wood composite panels

    Creator:
    Lampert, Nicholas S.
    Abstract:
    Efficient usage of resin is of critical importance to industry in the manufacture of wood composite panels, because resin represents a significant proportion of product costs. However, resin efficiency is poorly defined in literature, making it difficult to compare manufacturing processes in quantifiable terms. Additionally, resin content in the product...
    Resource Type:
    Masters Thesis
    Full Text:
    the form of chips, shavings and sawdust from other forest products processes are supplied to the

  • Durability Assessment of Wood Composites Using Fracture Mechanics

    Creator:
    Mirzaei, Babak
    Abstract:
    The advent of synthetic adhesives has transformed the structural applications of wood. However, a persistent issue in adhesively-bonded wood products has been moisture durability. When designing wood based composites, moisture durability will depend on both the wood phase and the adhesive phase. A key question, therefore, is how does one...
    Resource Type:
    Dissertation