Characterisation of fibre–polymer interactions and transcrystallinity in short keratin fibre–polypropylene composites

Barone, Justin R.; Grégoire, Nicolas

doi:10.1179/174328906x146478

Cited by 20 publications

(10 citation statements)

References 20 publications

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“…% PP, demonstrating that the mechanical properties improved proportionally with increasing MAPP content due to fibre-matrix interphase improvement. The same effect was observed by Barone and Gregoire [105], who described that MAPP (>4 wt. %) enhanced the stress at break and increased the amount of transcrystallinity, both as probable effects of the increased interphase adhesion between the feather keratin and the PP/MAPP matrix.…”

Section: Polyolefinssupporting

confidence: 85%

Keratin Associations with Synthetic, Biosynthetic and Natural Polymers: An Extensive Review

Donato

Mija

2019

Polymers

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Among the biopolymers from animal sources, keratin is one the most abundant, with a major contribution from side stream products from cattle, ovine and poultry industry, offering many opportunities to produce cost-effective and sustainable advanced materials. Although many reviews have discussed the application of keratin in polymer-based biomaterials, little attention has been paid to its potential in association with other polymer matrices. Thus, herein, we present an extensive literature review summarizing keratin’s compatibility with other synthetic, biosynthetic and natural polymers, and its effect on the materials’ final properties in a myriad of applications. First, we revise the historical context of keratin use, describe its structure, chemical toolset and methods of extraction, overview and differentiate keratins obtained from different sources, highlight the main areas where keratin associations have been applied, and describe the possibilities offered by its chemical toolset. Finally, we contextualize keratin’s potential for addressing current issues in materials sciences, focusing on the effect of keratin when associated to other polymers’ matrices from biomedical to engineering applications, and beyond.

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Section: Polyolefinssupporting

confidence: 85%

Keratin Associations with Synthetic, Biosynthetic and Natural Polymers: An Extensive Review

Donato

Mija

2019

Polymers

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“…Nevertheless, using protein fibres to reinforce polymer-based composites for new commodities and/or value-added applications may exploit this untapped resource. Protein fibres are naturally hydrophilic, fire-resistant, biodegradable, biocompat-ible and renewable in addition to exhibiting mechanical or chemical processability [1][2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Wool fibres functionalised with a silane-based coupling agent for reinforced polypropylene composites

Conzatti

Giunco

Stagnaro

et al. 2014

Composites Part A: Applied Science and Manufacturing

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Polypropylene (PP)-based composites containing 20 wt.% wool fibres were successfully prepared using a simple melt blending procedure. A blend of a commercial-grade PP and a maleinised PP was chosen as the matrix. To investigate the effects of modifying the fibre surface on the fibre/matrix adhesion, wool fibres were used as received, oxidised, or functionalised with a silane-based coupling agent, capable in principle of reacting with both the fibres and the polyolefinic matrix. The silanisation of the fibres and the consequent surface modifications were assessed using infrared spectroscopy and scanning electron microscopy. The resulting PP-based composites were thoroughly characterised in terms of their morphology, thermal stability and mechanical behaviour

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“…From the present study, it was observed that keratin inclusion resulted in remarkable decrease in solubility. The reduction in solubility as a consequence of keratin could be attributed to the presence of hydrophobic amino acids within the keratin matrix [38]. It is our submission that the potential reduction in solubility of biocomposite lm as a result of keratin could be bene cial in contributing to their stability.…”

Section: Discussionmentioning

confidence: 79%

Fabrication and characterization of keratin-starch bio-composite film from chicken feather waste and ginger starch

Oluba

Chibugo

Akpor

et al. 2020

Preprint

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Background: The disposal of chicken feather through burning or burying is not environmentally compliant due to the accompanying release of greenhouse gas and underground water contamination. Thus, the transformation of this bio-waste into a bio-composite film is considered not only sustainable strategy for disposal of these solid wastes but also an attractive alternative to developing an efficient nanostructure biomaterial from renewable bio resource.Methods: In the present study keratin extracted from chicken feather waste in combination with ginger starch were fabricated into a bio-composite film. The fabricated bio-composite films were characterized, using different analytical techniques.Results: The physicochemical characteristics of ginger starch showed a moisture content of 33.8%, pH of 6.21, amylose and amylopectin contents of 39.1% and 60.9%, respectively. The hydration capacity of the starch was 132.2% while its gelatinization temperature was 65.7 oC. Physical attributes of the bio-composite film, such as surface smoothness and tensile stress increased significantly (p < 0.05) with increasing keratin content, while transparency, solubility significantly (p < 0.05) decreased with increasing keratin level. The various blends of the bio-composite films decayed by over 50% of the original mass after 12 days of complete burial in soil.Conclusion: Based on the results obtained in this study, the addition of keratin to starch bio-composite showed improvement in mechanical properties, such as tensile stress and surface smoothness. The bio-composite film exhibited appropriate stability in water, although future study showed be carried out to evaluate its thermal stability. Nonetheless, the fabricated keratin-starch bio-composite showed desirable characteristics that could be optimized for industrial applications.

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Characterisation of fibre–polymer interactions and transcrystallinity in short keratin fibre–polypropylene composites

Cited by 20 publications

References 20 publications

Keratin Associations with Synthetic, Biosynthetic and Natural Polymers: An Extensive Review

Keratin Associations with Synthetic, Biosynthetic and Natural Polymers: An Extensive Review

Wool fibres functionalised with a silane-based coupling agent for reinforced polypropylene composites

Fabrication and characterization of keratin-starch bio-composite film from chicken feather waste and ginger starch

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