Search for dissertations about: "polyurethane adhesive"

Found 5 swedish dissertations containing the words polyurethane adhesive.

2. 1. Characterisation of green-glued wood adhesive bonds

   Author : Magdalena Sterley; Erik Serrano; Hans Petersson; Klaus Richter; Linnéuniversitetet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; green gluing; finger jointing; durability; shear strength; wood failure percentage; fracture energy; tensile strength; PUR adhesive; Byggteknik; Civil engineering;

   Abstract : The gluing of unseasoned wood, called green gluing, is a relatively new sawmill process, implying a radically changed order of material flow in the production of value-added wood-based products. It facilitates the enhancement of raw material recovery and value yield by integrating defect elimination and gluing already before kiln drying. READ MORE

4. 2. Acid-catalyzed Liquefaction of Industrial Side-streams for Producing Wood Adhesives and Particleboard

   Author : Wen Jiang; Stergios Adamopoulos; Sheikh Ali Ahmed; Sergej Medved; Carsten Mai; Johannes Konnerth; Linnéuniversitetet; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Bark; Catalysts; Industrial side-streams; Liquefaction; Oat husks; Optimization; Particleboards; Polyurethane; Polyhydric alcohols; Wood adhesives; Wood sawdust; Forestry and Wood Technology; Skog och träteknik;

   Abstract : Big quantities of residues and side-streams are generated annually from forest-based and agricultural industries all around the world and present a relatively unexplored renewable resource. Due to the absence of a regularly updated and systematic database of supply, industrial residues and side-streams usually end up in landfill disposal, are used for energy generation, or remain at the production sites. READ MORE

5. 3. Finger-Joints for Laminated Beams : Experimental and Numerical Studies of Mechanical Behaviour

   Author : Erik Serrano; Byggnadsmekanik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Finger-joints; Laminated timber; Testing; Nonlinear fracture mechanics; Finite Elemente Method; Lamininating effect;

   Abstract : The introduction of laminated timber, glulam being an example, allowed many of the disadvantages associated with solid wood to be overcome. The disadvantages in question are mainly those related to the size and shape limits of structural elements made of solid wood and to the large variability in such material properties of solid wood as strength and stiffness. READ MORE

6. 4. A study of wood adhesion and interactions using DMTA

   Author : Anna Backman Sandlund; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wood Physics; Träfysik;

   Abstract : The aim of the work presented in this thesis was to investigate whether the adhesion of glues and lacquers to wood could be studied using dynamic mechanical thermal analysis (DMTA). This method has been widely used to study interactions in polymer blends, copolymers and in polymeric composites but very few investigations had been done on solid wood. READ MORE

7. 5. In-plane mechanical properties of birch plywood and its performance in adhesively bonded connections

   Author : Tianxiang Wang; Magnus Wålinder; Roberto Crocetti; Simon Aicher; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Birch plywood; in-plane mechanical properties; adhesively bonded connections; gusset plates; load-to-face grain angle; spreading angle; Björkplywood; mekaniska egenskaper i planet; limmade förband; belastningsvinkel relativt ytfanérens fiberriktning ; spridningsvinkel; Building Materials; Byggnadsmaterial;

   Abstract : Birch (Betula spp.) is a hardwood species with a wide natural distribution on the Eurasian continent, especially in northern Europe. READ MORE