Study on Mechanical and Thermal Properties of Amazon Fibers on the Polymeric Biocomposites: Malva and Tucum

Cunha, Juliana dos Santos Carneiro da; Neto, Hilton Eduardo de Oliveira; Giacon, Virgínia Mansanares; Manzato, Lizandro; Silva, Cristina Gomes da

doi:10.1007/s12221-021-0843-y

Cited by 5 publications

(4 citation statements)

References 34 publications

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“…This same pattern was also observed by Moshi et al [49] and Maache et al [53]. The cellulose chain degradation is observed at temperatures close to 300 °C, due to the inert atmosphere [50] used in this experiment, a fact also observed by da Silva [45], Cunha et al [54] Figure 5. TG and DTG obtained for periquiteira fibers.…”

Section: Tga Analysissupporting

confidence: 89%

“…This same pattern was also observed by Moshi et al [49] and Maache et al [53]. The cellulose chain degradation is observed at temperatures close to 300 • C, due to the inert atmosphere [50] used in this experiment, a fact also observed by da Silva [45], Cunha et al [54] and Moshi et al [49]. After this temperature, no mass loss is observed, suggesting that beyond this stage, all components of the natural fiber were thermally degraded.…”

Section: Tga Analysissupporting

confidence: 89%

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Periquiteira (Cochlospermum orinocense): A Promising Amazon Fiber for Application in Composite Materials

et al. 2023

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Natural lignocellulosic fibers (NLFs) have in recent decades appeared as sustainable reinforcement alternatives to replace synthetic fibers in polymer composite material applications. In this work, for the first time, the periquiteira (Cochlospermum orinocense), a lesser known NLF from the Amazon region, was analyzed for its density and, by X-ray diffraction (XRD), to calculate the crystallinity index as well as the microfibrillar angle (MFA), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), scanning electron analysis (SEM) and tensile strength. The apparent density found for the periquiteira fiber was 0.43 g/cm3, one of the NLF’s lowest. XRD analysis indicated a crystallinity index of 70.49% and MFA of 7.32°. The TGA disclosed thermal stability up to 250 °C. The FTIR analysis indicated the presence of functional groups characteristic of NLFs. The SEM morphological analysis revealed that the periquiteira fiber presents fine bundles of fibrils and a rough surface throughout its entire length. The average strength value of the periquiteira fiber was found as 178 MPa. These preliminary results indicate that the periquiteira fiber has the potential to be used as a reinforcing agent in polymeric matrices and can generate a lightweight composite with excellent mechanical properties that can be used in various industrial sectors.

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Section: Tga Analysissupporting

confidence: 89%

Section: Tga Analysissupporting

confidence: 89%

Periquiteira (Cochlospermum orinocense): A Promising Amazon Fiber for Application in Composite Materials

et al. 2023

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“…On the other hand, treatment with CaLS reduced water absorption by 8% compared to untreated composites. This may indicate a slight improvement in the fiber/matrix interfacial bond as well as the treatment efficiency in the stability and durability of composites [ 33 , 74 , 75 ]. Figure 9 and Table 2 show that D values from Equation (3) increase as more fibers are added to the matrix.…”

Section: Resultsmentioning

confidence: 99%

“…Peoples of the South American rainforest use TVFs to fabricate handicrafts, baskets and furniture [ 30 ]. However, unlike the more common and recently exploited Amazon fibers such as curaua [ 31 ], buriti [ 32 ], mallow [ 33 ], guaruman [ 34 ] and others, there are no reports in the literature about TVF’s properties as a reinforcing agent in composite materials. In the present study, TVFs were modified using two reagents: Na 2 CO 3 and CaLS, for better adherence to epoxy matrix composites.…”

Section: Introductionmentioning

confidence: 99%

Physical and Mechanical Characterization of Titica Vine (Heteropsis flexuosa) Incorporated Epoxy Matrix Composites

et al. 2021

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Titica vine (Heteropsis flexuosa) is a typical plant of the Amazon region commonly used for making baskets, bags, brooms and furniture, owing to its stiff fibers. In spite of its interesting properties, there is so far no reported information regarding the use of titica vine fibers (TVFs) in engineering composite materials. In this work, the TVF and its epoxy composites were for the first time physically, thermally and mechanically characterized. Additionally, the effect of two kinds of chemical treatments, one with sodium carbonate and one with calcium lignosulfonate, as well as different volume fractions, 10, 20, 30 and 40 vol%, of TVF-reinforced composites were assessed for corresponding basic properties. The thermogravimetric results of the composites reveal enhanced thermal stability for higher TVF content. In addition, the composite incorporated with 40 vol% of TVFs treated with sodium carbonate absorbed 19% more water than the composites with untreated fibers. By contrast, the calcium lignosulfonate treatment decreased water absorption by 8%. The Charpy and Izod impact tests showed that the composites, incorporated with the highest investigated volume fraction (40 vol%) of TVF, significantly increased the absorbed energy by 18% and 28%, respectively, compared to neat epoxy. ANOVA and Tukey statistical analyses displayed no direct influence of the chemical treatments on the energy absorption of the composites for either impact tests. SEM images revealed the main fracture mechanisms responsible for the performance of TVF composites.

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Morphological and physicomechanical characterization of synthetic and natural fibers

Sakoshev,

Blaznov,

Bychin

et al. 2024

J Polym Res

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Study on Mechanical and Thermal Properties of Amazon Fibers on the Polymeric Biocomposites: Malva and Tucum

Cited by 5 publications

References 34 publications

Periquiteira (Cochlospermum orinocense): A Promising Amazon Fiber for Application in Composite Materials

Periquiteira (Cochlospermum orinocense): A Promising Amazon Fiber for Application in Composite Materials

Physical and Mechanical Characterization of Titica Vine (Heteropsis flexuosa) Incorporated Epoxy Matrix Composites

Morphological and physicomechanical characterization of synthetic and natural fibers

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