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The influence of fiber-surface treatment on the mechanical properties of jute-polypropylene composites.

Tipo de material: TextoTextoSeries ; Composites Part A: Applied Science and Manufacturing, 28(12), p.1001-1005, 1997Trabajos contenidos:
  • Gassan, J
  • Bledzki, A. K
Tema(s): Recursos en línea: Resumen: This article concerns the effectiveness of MAH-PP copolymers (graft copolymer of PP and maleic anhydride)as coupling agents in jute-polypropylene composites. The fiber treatment time and the MAH-PP concentration influenced the mechanical properties of the composites. Flexural strength of the composites with MAH-PP treated fibers was higher than that of unmodified fibers, and increased with fiber loading. The cyclic-dynamic values at an increasing load indicated that the coupling agent reduces the progress of damage. Dynamic strength (dynamic failure stress at load increasing test)of the MAH-PP modified composites is therefore raised by about 40 per cent. SEM investigations confirm that the increase in properties is caused by improved fiber-matrix adhesion. There was less inclination for fibers to pull out of the matrix.
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This article concerns the effectiveness of MAH-PP copolymers (graft copolymer of PP and maleic anhydride)as coupling agents in jute-polypropylene composites. The fiber treatment time and the MAH-PP concentration influenced the mechanical properties of the composites. Flexural strength of the composites with MAH-PP treated fibers was higher than that of unmodified fibers, and increased with fiber loading. The cyclic-dynamic values at an increasing load indicated that the coupling agent reduces the progress of damage. Dynamic strength (dynamic failure stress at load increasing test)of the MAH-PP modified composites is therefore raised by about 40 per cent. SEM investigations confirm that the increase in properties is caused by improved fiber-matrix adhesion. There was less inclination for fibers to pull out of the matrix.

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