Flax fibre physical structure and its effect on composite properties: Impact strength and thermo‐mechanical properties

摘要: Earlier investigations by the authors showed that tensile modulus of flax fibre mat polypropylene composites (NMT) could surpass values glass reinforced thermoplastic (GMT) on weight basis. The and flexural strength reach up to 65% GMT values, however, very much dependent physical structure. This study deals with Charpy impact thermo-mechanical properties NMT materials. trend is decreases increasing internal bonding enhanced fibre-matrix adhesion, which opposite for properties. materials lower than generally reported Dynamic mechanical thermal analysis reveals temperature storage reduces more slowly when adhesion are improved. In order approach tensile, materials, should be based strong elementary fibres. axial fibres approaches lateral higher technical strength. can probably improved non-cellulosic material removed from surface without damaging fibre.