Thermal characterization of chicken feather/PLA biocomposites

Özmen, Uğur; Baba, Buket Okutan

doi:10.1007/s10973-017-6188-5

Cited by 27 publications

(14 citation statements)

References 36 publications

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“…Thus, the polymer starch‐chitosan (5–95 wt% and 1 wt% of plasticizer) in this research presented a Tg around 104 °C, and as mentioned earlier, this value tended to decrease in the samples with keratin. This behavior has been shown with keratin in other natural polymers, indicating that keratin modified the properties of starch‐chitosan films, and the effect is more evident in the samples with modified keratin. The Tan δ values were modified according to the load and modification, indicating that the type and amount of reinforcement are parameters that can be used to produce a significant change in the movement of polymeric chains interacting with the reinforcement.…”

Section: Resultssupporting

confidence: 65%

Starch Modified With Chitosan and Reinforced With Feather Keratin Materials Produced by Extrusion Process: An Alternative to Starch Polymers

et al. 2018

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Starch (potato), chitosan, and feather keratin are used for processing biodegradable films produced by extrusion. The morphology of the films is examined with a scanning electron microscope and showed the excellent dispersion of keratin. The dispersion is the result of compatibility between the polysaccharides and proteins, as well as the proper operation of the extrusion process. Water solubility of the starch-chitosan films decreased with an increase of keratin materials. The storage modulus increased up to 137% for the composites with unmodified ground quill, and by 192% for composites with modified ground quill. In a tensile test, the composites with unmodified and modified quill reached outstanding increments up to 8160 and 7250% in elastic modulus, respectively, compared to the matrix. They also reached up to 3800% and 3150% in maximum strength, respectively, compared to the matrix. The lysozyme test showed relevant changes in the degradability rate, because the weight loss of the films at 3 weeks decreased from 53% for starch-chitosan matrix and up to 34% for composites with 5 wt% of modified quill. The results corroborated that chicken feather materials can be useful for the development of a manufacturing process for starch composites, and the decomposition of starch-chitosan composites can be controlled depending on the content and type of keratin.

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Section: Resultssupporting

confidence: 65%

Starch Modified With Chitosan and Reinforced With Feather Keratin Materials Produced by Extrusion Process: An Alternative to Starch Polymers

et al. 2018

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“…The higher the PMA graft ratio of the fiber, the higher the cold crystallization temperature. Additionally, all fiber‐reinforced PLA films were observed to be nearly unchanged at glass transition temperature at about 60°C, which was in agreement with literature reports, which revealed that all fibers in this study were not performed as a plasticizer in PLA matrix.…”

Section: Resultssupporting

confidence: 92%

“…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%

“…Therefore, it is interesting to investigate whether the incorporation of multiple kind of reinforcements can improve the performances of PLA or simply reducing the cost of PLA. Several researches of PLA reinforced with chicken feather fiber have been reported . It was reported that chicken feather has advantages in reducing environmental impact through preparing feather fiber/PLA bio‐based composite compared with neat PLA materials …”

Section: Introductionmentioning

confidence: 99%

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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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“…Wool fibres in combination with ammonium polyphosphate (APP) have shown a significant reduction in the resulting composite’s flammability with self-extinguishment of fire due to the formation of a rigid and compact char [ 5 , 6 ]. Poly(lactic) acid and polyurethane composites with chicken feather fibres have also demonstrated improved char formation and higher limiting oxygen index [ 7 , 8 ]. Jung and Bhattacharyya [ 9 ] have chemically modified wool and feather fibres using a rapid and simple solution treatment process to further improve their fire retardant properties and arrest the mechanical strength drop that is associated with the commonly used fire retardants.…”

Section: Introductionmentioning

confidence: 99%

Flammability Characteristics and Mechanical Properties of Casein Based Polymeric Composites

et al. 2020

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Even though casein has an intrinsic potential ability to act as a flame retardant (FR) additive, the research regarding the FR performance of casein filled polymeric composites has not been thoroughly conducted. In the present work, two commercial casein products, such as lactic casein 720 (LAC) and sodium casein 180 (SC), were chosen to investigate their effects on the performances of the polypropylene (PP) composites. The melt compounding and compression moulding processes were employed to fabricate these casein-based composites. Ammonium polyphosphate (APP) was also selected to explore its combined effects in conjunction with casein on the composite’s flammability. The cone calorimeter results showed that the addition of casein significantly reduced (66%) the peak heat release rate (PHRR) of the composite compared to that of neat PP. In particular, the combination of LAC and APP led to the formation of more compact and rigid char compared to that for SC based sample; hence, a further reduction (80%) in PHRR and self-extinguishment under a vertical burn test were accomplished. Moreover, the tensile modulus of the composite improved (23%) by the combined effects of LAC and APP. The overall research outcome has established the potential of casein as a natural protein FR reducing a polymer’s flammability.

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Thermal characterization of chicken feather/PLA biocomposites

Cited by 27 publications

References 36 publications

Starch Modified With Chitosan and Reinforced With Feather Keratin Materials Produced by Extrusion Process: An Alternative to Starch Polymers

Starch Modified With Chitosan and Reinforced With Feather Keratin Materials Produced by Extrusion Process: An Alternative to Starch Polymers

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

Flammability Characteristics and Mechanical Properties of Casein Based Polymeric Composites

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