Keratin fibres derived from tannery industry wastes for flame retarded PLA composites

Sánchez-Olivares, Guadalupe; Sanchez-Solis, A.; Calderas, Fausto; Alongi, Jenny

doi:10.1016/j.polymdegradstab.2017.04.011

Cited by 40 publications

(16 citation statements)

References 31 publications

(28 reference statements)

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“…Therefore, it was clear that thermal stabilities of PLA/CFF films dropped while increasing filler content that could be found in PLA/CFF, PLA/CFFPMA50, and PLA/CFFPMA200 films. According to other reports, the decomposition onset and DTG peak of PLA/CFF composite were 300‐320°C and 350‐360°C, respectively . In our study, the decomposition onset, offset, and main DTG peak temperatures were shifted to higher region that might contribute to faster heating rate (20°C/min).…”

Section: Resultssupporting

confidence: 76%

Compatibilities and properties of poly lactide/poly (methyl acrylate) grafted chicken feather composite: Effects of graft chain length

Chen

Hori

Kajiyama

et al. 2020

J of Applied Polymer Sci

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Surface modified poly(methyl acrylate) (PMA) grafted chicken feather fiber was applied as a reinforcement for polylactide (PLA)‐based composite film. The PMA grafted feather fiber with different PMA lengths were obtained for surface initiated Cu(0)‐mediated reversible‐deactivation radical polymerization. PLA‐based composite films with different unmodified or PMA‐grafted chicken feather fiber loading were prepared by solvent casting. Grafting PMA onto feather fiber enhanced interfacial bonding. Cracks and voids between matrix and fiber were eliminated. Thermal stability of these films also improved after introducing PMA. Feather fiber with high graft ratio showed worse dispersity in PLA due to its self‐aggregation. The heterogeneous nucleation agent behavior of feather grafted with longer PMA was also suppressed. Tensile tests showed that after modification, tensile strength and modulus was able to increase twice at 20% fiber loading. However, increasing PMA length improved break elongation but strength and modulus would drop slightly. These results indicated that grafting short PMA chain onto feather fiber surface was an effective and optimized method to improve dispersity and mechanical properties especially for higher filler loading.

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Section: Resultssupporting

confidence: 76%

Compatibilities and properties of poly lactide/poly (methyl acrylate) grafted chicken feather composite: Effects of graft chain length

Chen

Hori

Kajiyama

et al. 2020

J of Applied Polymer Sci

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“…In the case of the samples containing CK alone (see Figure 5B), a large amount of a grayish‐brown powdery material remained on the sample surface after combustion. This was because, during the combustion of these samples, the H 2 S generated by the oxidation of CK formed phenolic compounds, 18 resulting in the formation of a protective layer on the sample surface. For the samples containing only DOPO, a distinct, a relatively complete char layer was formed on the sample surface, as shown in Figure 5C.…”

Section: Resultsmentioning

confidence: 99%

“…Meanwhile some of the chemical bonds in CK, such as the SH and NH bonds, break to release NH 3 , CO 2 , H 2 S, SO 2 , H 2 O, and other noncombustible gases. These gases replace some of the combustible ones and also remove some of the heat 18 . In addition, theses noncombustible gases cause the char layer to expand.…”

Section: Resultsmentioning

confidence: 99%

“…Wang et al 17 used feather keratin in combination with borax and boric acid in cotton fabric and found that a thick and dense char layer formed after burning, which improved the flame retardancy of the material. Sanchezolivares et al 18 mixed aluminum hydroxide with keratin fibers extracted from the waste from the tannery industry and added the mixture to polylactic acid composites. During subsequent UL94 tests, these composites exhibited characteristics corresponding to grade V0, and their mechanical properties also improved.…”

Section: Introductionmentioning

confidence: 99%

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Effects of chicken feather keratin on smoke suppression characteristics and flame retardancy of epoxy resin

Zheng

Zhu

et al. 2020

Polymers for Advanced Techs

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Chicken feather keratin (CK), a biomaterial that contains a large amount of nitrogen is extracted from chicken feathers and has significant potential for use as a flame retardant. In this study, CK and 9,10-dihydro-9-oxa-10-phosphenanthrene-10-oxide (DOPO) were added in different amounts to an epoxy resin (EP), and their flame retardancy and smoke suppression effects were studied. The results showed that CK

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“…It also worth mentioning the work of Sanches-Olivares et al [191] who prepared animal hair keratin fibre/PLA composites via melt compounding both with and without adding together a traditional flame retardant (aluminium trihydroxide, ATH). They observed that the addition of keratin fibre into PLA classifies it as V-2, and the combination of keratin fibre and ATH as V-0 flame retardant, by the UL94-V standards.…”

Section: Polyvinyl Alcohol (Pvoh)mentioning

confidence: 99%

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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Keratin fibres derived from tannery industry wastes for flame retarded PLA composites

Cited by 40 publications

References 31 publications

Compatibilities and properties of poly lactide/poly (methyl acrylate) grafted chicken feather composite: Effects of graft chain length

Compatibilities and properties of poly lactide/poly (methyl acrylate) grafted chicken feather composite: Effects of graft chain length

Effects of chicken feather keratin on smoke suppression characteristics and flame retardancy of epoxy resin

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

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