Valorization of feather waste in Brazil: structure, methods of extraction, and applications of feather keratin

Souza, Guilherme Eduardo de; Burin, Glaucia Regina Medeiros; Muniz, G. I. B. de; Alves, Helton José

doi:10.1007/s11356-023-25788-x

Cited by 15 publications

(1 citation statement)

References 59 publications

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“…5 It is estimated that around 8–9 million tons of waste feathers are produced every year in the world. 6 Due to their tenacity, feathers can take quite a long time to decompose naturally. Buried feathers may be a source of microbial pathogens and can cause disease.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Properties of Gradient Sound-Absorbing Composites with Waste Feathers

Lyu,

Pan,

et al. 2024

AATCC Journal of Research

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To make full use of waste feather resources, waste feather fiber/polybutanediol succinate gradient sound-absorbing composites were prepared by a hot-pressing process with waste feather fiber as a reinforcing material and polybutanediol succinate as a matrix material. It can be applied to construction and other fields. The influence of gradient waste feather fiber mass fraction, gradient material density, and gradient material thickness on the sound-absorbing performance was studied, and the sound-absorbing mechanism of the material was analyzed. To determine the average sound-absorbing coefficient, maximum absorbing coefficient, and noise reduction coefficient as the evaluation index, the gradient sound-absorbing composites with waste feathers were compared with market common porous sound-absorbing materials with polyester fiber and wool fiber. The maximum sound-absorbing coefficient of the gradient sound-absorbing composites with waste feathers was 0.860; the average sound-absorbing coefficient was 0.408; the noise reduction coefficient was 0.393; and the noise reduction grade was IV. The sound-absorbing band was wide, and gradient sound-absorbing composites with waste feathers can be applied over a wide range.

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Section: Introductionmentioning

confidence: 99%