| Autor: |
Mewoli, Armel, Segovia, César, Ebanda, Fabien Betene, Ateba, Atangana, Girods, Pierre, Nicolas, Brosse |
| Zdroj: |
Waste & Biomass Valorization; May2024, Vol. 15 Issue 5, p3109-3121, 13p |
| Abstrakt: |
This study focuses on the development of needle-punched nonwoven composites reinforced with a Triumfetta cordifolia (TC) bast fiber based on a polylactide (PLA) matrix. Flax and hemp fibers, already known for their use in automotive applications, are used as a reference for comparison purposes. TC bast fibers from the equatorial region of Cameroon were extracted by a water retting process. Nonwoven felts were obtained by mixing TC fibers with PLA (50:50 weight ratio) through carding-napping process. The composite materials were obtained by thermocompression of the nonwoven felts with two thickness ranges (2 and 3 mm). The results obtained in tensile and flexural tests showed that composite materials with an optimal thickness of 2 mm displayed better mechanical performances. The anisotropy of the mechanical properties in traction and flexion of these composites was highlighted. It was found that the tensile and flexural mechanical properties in the transverse direction are always superior to those in the machine direction. Compared to flax or hemp nonwoven-reinforced biocomposites, TC fibers-based nonwoven biocomposites showed slightly lower maximum tensile and flexural stiffness values of 2882.7 MPa and 3908.6 MPa respectively. Thermogravimetric analysis revealed that the addition of the plant fibers increased the thermal stability of PLA and the ash content to 8%. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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