Journal
JOURNAL OF COMPOSITE MATERIALS
Volume 45, Issue 12, Pages 1305-1313Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0021998310380290
Keywords
phosphate glass fiber; silk fiber; composites; weathering
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Degradable phosphate glass fiber is a synthetic fiber and silk is one of the strongest natural fibers. In this study, composites are fabricated from PP reinforced with phosphate glass fiber and silk fiber using compression molding. Tensile testing, flexural testing and impact testing are carried out to evaluate the composites mechanical properties. It has been found that silk fiber composites provided higher tensile strength (46 MPa), bending strength (50 MPa), and impact strength (17 kJ/m(2)) compared to glass fiber composites which are respectively 39 MPa, 46 MPa, and 8 kJ/m(2). Degradation studies are carried out by accelerated weathering as well as by natural weathering. After weathering, the mechanical properties are evaluated and it has been found that phosphate glass fiber/PP composites degrade more rapidly compared to silk/PP composites.
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