Hybridization effect of fibers on mechanical properties of PA66/PP blend-based thermoplastic composites
| Autor: | H.N. Reddappa, B.N. Ravi Kumar, B. V. Lingesh, B.M. Rudresh |
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| Rok vydání: | 2018 |
| Předmět: |
Polypropylene
Fiber pull-out Materials science Polymers and Plastics Materials Science (miscellaneous) Izod impact strength test 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Brittleness Flexural strength chemistry Basalt fiber Ultimate tensile strength Materials Chemistry Ceramics and Composites Fiber Composite material 0210 nano-technology |
| Zdroj: | Advanced Composites and Hybrid Materials. 1:766-776 |
| ISSN: | 2522-0136 2522-0128 |
| Popis: | The effect of hybrid fibers on mechanical behavior of thermoplastic composites is most important for structural applications. This article deals with the effect of hybrid short fibers i.e., short glass fiber (SGF), short carbon fiber (SCF), and short basalt fibers (SBF) on 80/20 wt% of polyamide 66/polypropylene (PA66/PP) blend. The glass-carbon hybrid composites (CG) and glass-basalt hybrid composites (BG) were prepared by using melt mix twin screw extruder. The mechanical properties such as tensile, flexure, and impact strength of hybrid composites were studied as per ASTM methods. Further, hardness and density of hybrid composites were also discussed. The experimental results revealed that hybrid fibers effect greatly enhanced mechanical behavior of PA66/PP blend. The CG composites exhibited improvement in tensile strength by 76.7%, flexural strength by 104.12 and 20.82% reduction in elongation whereas BG composites by 77.22, 109, and 12.92% reduction in elongation, respectively. Significant enhancement in strength of composites was observed due to hybrid fibers effect. The synergistic effect between hybrid fibers and matrix helped in improving mechanical behavior. The impact strength of hybrid composites was reduced due to brittle nature of fibers. Fiber fracture, fiber pull out and fiber misalignment are some of the mechanisms observed through scanning electron microscopy (SEM) photographs. |
| Databáze: | OpenAIRE |
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