Wood adhesives
| Autor: | A. Pizzi, M. Dunky |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
040101 forestry
Aqueous solution Materials science technology industry and agriculture Formaldehyde 04 agricultural and veterinary sciences 02 engineering and technology Resorcinol 021001 nanoscience & nanotechnology complex mixtures chemistry.chemical_compound chemistry Bond line Wood panel 0401 agriculture forestry and fisheries Phenol Adhesive Composite material 0210 nano-technology Melamine |
| Zdroj: | Adhesion Science and Engineering |
| DOI: | 10.1016/b978-044451140-9/50023-8 |
| Popis: | This chapter discusses wood adhesives, types of wood adhesives, and provides an overview of the requirements concerning wood adhesives. The quality of bonding, and hence the properties and the performance of the wood-based panels and beams, are determined by three main parameters: (1) the wood, especially the wood surface, including the interface between the wood surface and the bond line, (2) the adhesive, and (3) the working conditions and process parameters. In the wood and building industry a great variety of adhesives are currently in use, with the greatest variety being used in the wood panel industry. Condensation resins based on formaldehyde represent the biggest volume within the wood adhesives industry. These resins are formed by the reaction of formaldehyde with various chemicals like urea, melamine, and phenol or resorcinol, or with combinations of these substances. These adhesive resins are mainly liquid and consist of primarily linear or branched oligomeric and polymeric molecules in an aqueous solution but also, partly, of a dispersion of molecules in the same aqueous solutions. The chapter also discusses UF-resins, melamine-fortified UF-resins (MUF and MU(P)F adhesives), and reactivity and hardening reactions of aminoplastic adhesive resins. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|