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Structural and Mechanical Behavior of Polypropylene/ Maleated Styrene‐(ethylene‐ Co ‐Butylene)‐styrene/sisal Fiber Composites Prepared by Injection Molding by X. L. Xie; K. L. Fung; R. K. Y. Li; S. C. Tjong; Y.‐W. Mai is a Materials Science article available to read on EtoBox.

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## Abstract Hybrid composites consisting of isotactic poly(propylene) (PP), sisal fiber (SF), and maleic anhydride grafted styrene‐(ethylene‐__co__‐butylene)‐styrene copolymer (MA‐SEBS) were prepared by melt compounding, followed by injection molding. The melt‐compounding torque behavior, thermal properties, morphology, crystal structure, and mechanical behavior of the PP/MA‐SEBS/SF composites were systematically investigated. The torque test, thermogravimetric analysis, differential scanning calorimetric, and scanning electron microscopic results all indicated that MA‐SEBS was an effective compatibilizer for the PP/SF composites, and there was a synergism between MA‐SEBS and PP/SF in the thermal stability of the PP/MA‐SEBS/SF composites. Wide‐angle X‐ray diffraction analysis indicated that the α form and β form of the PP crystals coexisted in the PP/MA‐SEBS/SF composites. With the incorporation of MA‐SEBS, the relative amount of β‐form PP crystals decreased significantly. Mechanical tests showed that the tensile strength and impact toughness of the PP/SF composites were generally improved by the incorporation of MA‐SEBS. The instrumented drop‐weight dart‐impact test was also used

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Author

X. L. Xie; K. L. Fung; R. K. Y. Li; S. C. Tjong; Y.‐W. Mai

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0887-6266)

Published

2002

Language

EN

Field

Materials Science (Physical Sciences)