Coir/glass hybrid fiber reinforced thermoset polymer composite laminates with room-temperature self-healing and shape memory functions

Mahmud, Sakil; Konlan, John; Deicaza, Jenny; Li, Guoqiang

doi:10.1016/j.indcrop.2023.116895

Cited by 6 publications

(3 citation statements)

References 66 publications

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“…(b) A significant degradation, with a 70% weight reduction between 250 and 450 °C, resulted from polymer depolymerization, dehydration, and decomposition, leading to char residue formation . (c) Linear weight loss initiated at 450 °C, indicating oxidation of leftover char residue and its subsequent decomposition into small volatile . Thermal degradations were assessed in terms of weight loss at different temperatures.…”

Section: Resultsmentioning

confidence: 99%

“…54 (c) Linear weight loss initiated at 450 °C, indicating oxidation of leftover char residue and its subsequent decomposition into small volatile. 4 Thermal degradations were assessed in terms of weight loss at different temperatures. The TGA curve shows a two-stage major degradation which also goes in line with other studies.…”

Section: Analysis Of Thermal Propertiesmentioning

confidence: 99%

“…In recent times, there has been a growing interest in sustainable biocomposite products driven by consumer demands and environmental organizations worldwide. − The escalating levels of carbon dioxide (CO 2 ) in the atmosphere pose a substantial threat, necessitating the urgent utilization of biobased natural resources as alternatives to CO 2 -emitting sources. − Despite the wide-ranging applications of polymeric materials, discontinuing the production of plastic materials derived from thermoplastic, thermosetting polymers, and rubber is challenging. − Additionally, composite manufacturing industries heavily rely on petroleum-based resources. , In this context, exploring carbon-based materials sourced from nature presents a viable alternative. − Poly(lactic acid) (PLA) has emerged as a promising and popular bioplastic due to its monomer’s derivation from natural sources like corn, making it a renewable and biodegradable polymer. ,, PLA exhibits higher tensile strength and Young’s modulus compared to synthetic polymer-based plastics, enhancing its competitiveness. − However, it possesses inherent brittleness, heat resistance, and limited crystallization capabilities, hindering its potential applications. − Nevertheless, with suitable physical or chemical modifications, PLA can be considered a carbon-neutral thermoplastic polymer.…”

Section: Introductionmentioning

confidence: 99%

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Thermo-Blending of Biobased Poly(propylene 2,5-furan dicarboxylate) and Poly(lactic acid) with Improved Mechanical Performance

Mahmud,

Hasan,

Dai

et al. 2024

ACS Appl. Polym. Mater.

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Sustainable polymeric blends were successfully produced by blending biobased poly(propylene 2,5-furan dicarboxylate) (PPF) with poly(lactic acid) (PLA). This study aimed to enhance the toughness of PLA, which is known for its inherent brittleness, by incorporating compatible polymeric additives. In this regard, a biosynthesized PPF polymer was used to strengthen PLA, resulting in improved tensile properties and the potential for biodegradability, as both PLA and PPF are derived from natural sources. The study revealed that the highest tensile strength (89.46 ± 2.98 MPa) was achieved with a 30% PPF reinforcement of PLA, while the greatest elongation at break (63.85 ± 4.10%) was observed with a 20% PPF reinforcement, compared to neat PLA. Additionally, the 30% PPF reinforcement of PLA exhibited a significantly higher Young's modulus of 3197.35 ± 107.25 MPa. All the blends displayed superior tensile strengths and elongation at break compared to neat PLA. Tensile strengths showed an increasing trend with a higher content of PPF copolymers. Morphological investigations indicated limited compatibility between PLA and PPF, but this characteristic did not negatively impact the thermo-mechanical performance of the developed blends. Furthermore, the thermal stability of the blends increased with a higher loading of PPF in the polymeric blend system. Overall, these sustainable composite products demonstrate promising potential for applications requiring enhanced mechanical and thermal properties. The results suggest that the developed blends are suitable for scalable production and real-life applications.

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Section: Resultsmentioning

confidence: 99%

Section: Analysis Of Thermal Propertiesmentioning

confidence: 99%