56 research outputs found
Surface Tension and Wettability of CCA-Treated Red Maple
The wetting properties of untreated, water-extracted and chromated copper arsenate (CCA)-treated red maple were characterized by contact angle measurements. Conventional experimental and mathematical modeling were employed to evaluate the wetting parameters. Zisman's critical surface tensions, and both acid-base (γABs) and acid (γ+s) components of surface tension for CCA-treated wood do not differ much from those of untreated wood. After CCA-treatment, the dispersion (γds) and Lifshitz-van der Waal (γLWs) components of the surface tension increase while the polar (γps) and base (γ-s) components decrease. The high contact angles resulting from the water and CCA treatment of wood compared to untreated wood suggest poor wettability. CCA-treated wood wetted with phenol-formaldehyde (PF) adhesive gave contact angles greater than 90°, i.e., very poor wettability and the time to reach an equilibrium contact angle was three times longer than that for untreated wood
Influence of coupling agent in compatibility of post-consumer HDPE in thermoplastic composites reinforced with eucalyptus fiber
Improving adhesion of wood fiber with polystyrene by the chemical treatment of fiber with a coupling agent and the influence on the mechanical properties of composites
Performance of Hybrid Reinforcements in PVC Composites: IV. Use of Surface-Modified Glass Fiber and Different Cellulosic Materials as Reinforcements
Effects of Coating Treatments on the Mechanical Behavior of Wood Fiber-Filled Polystyrene Composites. II. Use of Inorganic Salt/Polyvinyl Chloride and Isocyanate as Coating Components
Liquefaction of Biomass in the Presence of Phenol and H-2o Using Alkalies and Salts as the Catalyst
The effect of aging conditions on the mechanical properties of wood fiber-polystyrene composites: II. Sawdust as a reinforcing filler
Studies on the preparation and properties of particle boards made from bagasse and PVC: II. Influence of the addition of coupling agents
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