Thermal Characterization of the Natural Fiber‐Based Hybrid Composites: An Overview

Muthukumar, Chandrasekar; Krishnasamy, Senthilkumar; Thiagamani, Senthil Muthu Kumar; Rajini, N.; Siengchin, Suchart

doi:10.1002/9783527831562.ch1

Cited by 7 publications

(4 citation statements)

References 43 publications

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“…The percentage of residual mass provides the thermal stability of the composites. The higher the percentage of residual mass is the indication of improved thermal stability of the composites [ 46 ]. The percentage of the residual mass at the end of the heating process about 6.0 and 8.0 was found for the composites C1 and C3 respectively.…”

Section: Resultsmentioning

confidence: 99%

Preparation and characterization of short date palm mat (DPM) fiber reinforced polystyrene composites: Effect of gamma radiation

Khatun,

Sultana,

Kabir

et al. 2023

Heliyon

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Section: Resultsmentioning

confidence: 99%

Preparation and characterization of short date palm mat (DPM) fiber reinforced polystyrene composites: Effect of gamma radiation

Khatun,

Sultana,

Kabir

et al. 2023

Heliyon

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“…Os valores de Tg determinados a partir das curvas de TMA na Figura 5 foram 119 °C para os nanocompósitos 30 FJ/EP-GO, 114 °C para a resina EP e 124 °C para os compósitos 30 FJ/EP. A diferença nos valores de Tg é causada por uma variedade de fatores como oxidação de alongamento, adição de preenchimentos, e composição química que afeta a mobilidade molecular do material e o intervalo de Tg [33]. No caso das fibras de junco CM, a adição das fibras como um reforço para a matriz epóxi ocasiona uma restrição da mobilidade macromolecular.…”

Section: Resultsunclassified

ANáLISE TERMO E DINâMICO MECâNICAS DAS FIBRAS DE JUNCO-SETE-ILHAS (CYPERUS MALACCENSIS) REFORçANDO UM NANOCOMPóSITO DE MATRIZ EPóXI COM GO INCORPORADO

Neuba,

Junio,

Souza

et al. 2023

ABM Proceedings

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ResumoAs fibras de junco-sete-ilhas extraídas da planta Cyperus malaccensis (CM) foram recentemente descobertas como um promissor reforço para compósitos poliméricos. A incorporação de 30 % em volume de fibras de junco CM melhoraram a resistência ao impacto, tração e módulo de elasticidade dos compósitos de epóxi com uma pequena diferença em seus parâmetros termogravimétricos. No entanto, o comportamento dinâmico-mecânico viscoelástico ainda precisa ser investigado para a completa caracterização desses compósitos tendo em vista futuras aplicações de engenharia. Portanto, essa pesquisa foca em investigar a análise dinâmicomecânica (DMA) e termomecânica (TMA) para nanocompósitos de matriz epóxi incorporada com óxido de grafeno contendo 30% em volume de fibra de junco CM. Em comparação ao grupo controle (epóxi sem tratamento) o fator de amortecimento (Tan δ), sendo a razão do módulo da perda sob o armazenamento, é aumentada significativamente de 0,45 para 0,75 para os compósitos reforçados com 30% de fibras de junco CM. As descobertas de TMA revelaram apenas pequenas variações na temperatura de transição vítrea (119-124 °C), assim como o coeficiente de expansão térmica (168 x 10 -6 a 220 x 10 -6 /°C). Esses resultados de DMA e TMA revelam ser promissores os efeitos das fibras de junco CM reforçando um nanocompósito de matriz epóxi incorporada com GO e a contribuição nas respostas viscoelásticas. Palavras-chave: Fibra de junco-sete-ilhas; Compósitos epóxi; Análise dinâmicomecânica; Mecanismo de fratura; Análise termomecânica. THERMAL MECHANICAL AND DYNAMIC MECHANICAL ANALYSIS OF SEDGE FIBERS (Cyperus malaccensis

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“…It is concluded from above figure that as wt% of fiber increases 15% to 20% the mass residue is higher which indicates that modified alkali treated PJ fiber gives more thermal stability to PF composites. Hence it is concluded that thermal stability of composites strongly influenced by the fiber morphology, fiber weight and the heating rates [8].…”

Section: Thermo Gravimetric Analysis (Tga)mentioning

confidence: 98%

“…Alkali treatment is an effective way to improve the properties of polyester fiber reinforced polyester (PF) composites. The surface modification of the fiber increases the interfacial bonding between the PF resin and the fiber, resulting in an increase in the glass transition temperature (Tg)[7,8].…”

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confidence: 99%

Thermal stability of natural fiber reinforced biodegradable composites

Yadav,

Singh,

Nehra

et al. 2023

J. Phys.: Conf. Ser.

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Polymer composites reinforced with natural fibers are being increasingly developed by researcher and scientist in the recent field of material science due to their various applications in aerospace, marine and industries. The hydrophilic natural fibers are incompatible with the hydrophobic polymer matrices this leads to less interfacial bonding between fibers and matrix. In this paper, fibers were collected from desert plant prosopis juliflora and NaOH treatment was done to increase interfacial bonding of fiber-Matrix. Prosopis Juliflora fiber reinforced phenol formaldehyde composites were prepared with different fiber loading up to 20wt% and then characterized by thermo gravimetric analysis. This paper describes thermal properties composites materials by Thermo gravimetric analysis TGA and Differential scanning calorimetric DSC analysis of composite materials with different heating rates and hence establishes a connection between temperature and physical properties of substances. This study highlights the potential of alkali treatment in improving the thermal stability of the composites. This paper concludes that by, increasing the fiber weight percentage (fiber loading) in PF resin does increase the thermal stability of the resulting composite. The mass residue of untreated fiber reinforced PF composites with fiber loading 15% wt. UTFRPFC 15was 35%, while treated fiber reinforced PF composites with fiber loading 15% wt. ATFRPFC 15 had a mass residue of 75% at a temperature of 400°C. This clearly shows that alkali treatment significantly enhances the thermal stability of the composites. Alkali pre-treatment activates the fibers’ surface and helps increase the fiber’s mechanical strength.

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Thermal Characterization of the Natural Fiber‐Based Hybrid Composites: An Overview

Cited by 7 publications

References 43 publications

Preparation and characterization of short date palm mat (DPM) fiber reinforced polystyrene composites: Effect of gamma radiation

Preparation and characterization of short date palm mat (DPM) fiber reinforced polystyrene composites: Effect of gamma radiation

ANáLISE TERMO E DINâMICO MECâNICAS DAS FIBRAS DE JUNCO-SETE-ILHAS (CYPERUS MALACCENSIS) REFORçANDO UM NANOCOMPóSITO DE MATRIZ EPóXI COM GO INCORPORADO

Thermal stability of natural fiber reinforced biodegradable composites

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