| Summary: | 碩士 === 萬能科技大學 === 材料科技研究所 === 99 === The main objective of this thesis was to study the mechanical characteristics of Jute/Polypropylene braided fabric reinforced epoxy composites. A tubular braiding machine was used to braid the jute yarns and polypropylene (PP) yarns to get hybrid jute/PP tapes. The tapes were, then, used as weft and warp yarns, which supplied to a weaving loom, to fabricate reinforced fabrics. The fabrics are plain woven construction. Three reinforced fabrics (braided jute tape plain fabric, braided polypropylene tape plain fabric and co-braid jute/polypropylene tape plain fabric) had been developed in this experiment. After finished the weaving procedure, the produced fabrics impregnated with epoxy resin to get the braided tape fabrics reinforced composites. The co-braid jute/polypropylene tape plain fabrics were, also, heated and pressed onto a hot-press machine to fabricate thermoplastic composites. A material test system was used to study the tensile, compressive and flexural properties of the composites. In addition, the iMPact properties were evaluated by an Izod iMPacting machine. The failure phenomenon of the composites was, also, discussed, in the current experiment.
Experimental results revealed that the co-braid structure of Jute/PP fabric improved the compressive resistance of the composites. Furthermore, adding PP braided reinforced fabrics increases composites toughness and yields better energy absorption in coMParison with pure epoxy sample.
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