Adhesive penetration in beech wood: experiments
نویسندگان
چکیده
منابع مشابه
Adhesive Penetration in Beech Wood Part I: Experiments
A study with synchrotron radiation X-ray tomographic microscopy (SRXTM) of PUR, PVAC, and UF adhesive bond lines in beech wood, bonded under various growth ring angles is presented. After determining the hardening characteristics of the adhesives, we evaluate the bond line morphologies, and the adhesive penetration into the wood structure. We find distinct bond line imperfections for the differ...
متن کاملAdhesive penetration in Beech wood Part II: Penetration Model
We propose an analytical model to predict the adhesives penetration into hard wood. Penetration of hard wood is dominated by the vessel network which prohibits porous medium approximations. Our model considers two scales: a one dimensional capillary fluid transport of a hardening adhesive through a single, straight vessel with diffusion of solvent through its walls and a mesoscopic scale based ...
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Adhesion to Wood 9–1 Surface Properties of Wood Adherends 9–2 Extractives on Surfaces 9–3 Knifeand Abrasive-Planed Surfaces 9–3 Veneer Surfaces 9–4 Surfaces of Wood and Nonwood Composite Products 9–5 Physical Properties of Wood Adherends 9–6 Density and Porosity 9–6 Moisture Content and Dimensional Changes 9–7 Adhesives 9–9 Composition 9–9 Health and Safety 9–10 Strength and Durability 9–10 Adh...
متن کاملChemical Modification of Beech Wood: Effect on Thermal Stability
Beech sawdust was reacted with phthalic (PA) and maleic (MA) anhydrides for chemical modification. The influence of reaction time and anhydride amount was investigated. IR spectra gave evidence of wood esterification. Thermogravimetric investigation of chemically modified wood indicated a better thermal stability (mainly for wood treated with phthalic anhydride) in comparison with the untreated...
متن کاملAdhesion Mechanisms of Durable Wood Adhesive Bonds
This chapter presents and discusses the current state of the art regarding adhesion mechanisms in characterizing durable adhesive bonds for wood composites. Particular emphasis is placed on phenol-formaldehyde (PF) and polymeric methylene diphenyl diisocyanate (pMDI) adhesives. An overview of current adhesion mechanisms is presented with an emphasis on categorizing adhesion mechanisms relative ...
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ژورنال
عنوان ژورنال: Wood Science and Technology
سال: 2011
ISSN: 0043-7719,1432-5225
DOI: 10.1007/s00226-011-0410-6