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Wood pulp fiber reinforced melamine-formaldehyde composites

Journal of materials science, 2004-05, Vol.39 (9), p.3245-3247 [Peer Reviewed Journal]

2004 INIST-CNRS ;Journal of Materials Science is a copyright of Springer, (2004). All Rights Reserved. ;ISSN: 0022-2461 ;EISSN: 1573-4803 ;DOI: 10.1023/B:JMSC.0000025870.09117.f6 ;CODEN: JMTSAS

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  • Title:
    Wood pulp fiber reinforced melamine-formaldehyde composites
  • Author: GINDL, W ; JERONIMIDIS, G
  • Subjects: Applied sciences ; Composites ; Exact sciences and technology ; Fiber composites ; Forms of application and semi-finished materials ; Melamine ; Polymer industry, paints, wood ; Technology of polymers ; Wood pulp
  • Is Part Of: Journal of materials science, 2004-05, Vol.39 (9), p.3245-3247
  • Description: In comparison to other fibrous materials, plant fibers show a number of advantages, namely low density, biodegradability, and a neutral CO2 balance during their cycle of life. On the other hand, consisting predominantly of cellulose, plant fibers are subject to swelling when exposed to humidity, which causes dimensional instability and degradation of mechanical properties. In unmodified solid wood, the hydrophilic cellulose and hemicellulose is partly sealed by the less hydrophilic lignin, which reduces negative effects of water uptake into the cell wall to a certain extent. In consequence, delignified wood is highly susceptible to uptake of water and loses its mechanical integrity in wet conditions. Experiments with solid wood have shown that impregnation of wood fiber cell walls with water soluble melamine-formaldehyde resin (MF) hinders the uptake of water and reduces dimensional instability and deterioration of strength. It was shown that MF penetrates into the amorphous region of cellulose fibrils, where it may form covalent bonds with cellulose. Due to the good affinity of MF to cellulosic fibers, the addition of compatibilizers or chemical surface modification of fibers, which is necessary when rather hydrophobic thermoplastic matrices such asPP orPE are used, is not required. Due to these favorable properties MF appears to have a good potential for application as the polymer matrix in plant fiber reinforced composites, which was already tested using flax fibers. In this study, MF resin is used to produce composite sheets reinforced with wood pulp fibers, in order to investigate basic mechanical properties of the composite.
  • Publisher: Heidelberg: Springer
  • Language: English
  • Identifier: ISSN: 0022-2461
    EISSN: 1573-4803
    DOI: 10.1023/B:JMSC.0000025870.09117.f6
    CODEN: JMTSAS
  • Source: Alma/SFX Local Collection
    ProQuest Central
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