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Exploring keratin composition variability for sustainable thermal insulator design.
Ma, Yu-Shuan; Kuo, Fang-Mei; Liu, Tai-Hung; Lin, Yu-Ting; Yu, Jiashing; Wei, Yang.
Afiliación
  • Ma YS; Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 106, Taiwan.
  • Kuo FM; Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 106, Taiwan.
  • Liu TH; Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
  • Lin YT; Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
  • Yu J; Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan. Electronic address: jiayu@ntu.edu.tw.
  • Wei Y; Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 106, Taiwan; High-value Biomaterials Research and Commercialization Center, National Taipei University of Technology, Taipei, 10608, Taiwan. Electronic address: wei38@ntut.edu.tw.
Int J Biol Macromol ; 275(Pt 2): 133690, 2024 Aug.
Article en En | MEDLINE | ID: mdl-38971280
ABSTRACT
In pursuing sustainable thermal insulation solutions, this study explores the integration of human hair and feather keratin with alginate. The aim is to assess its potential in thermal insulation materials, focusing on the resultant composites' thermal and mechanical characteristics. The investigation uncovers that the type and proportion of keratin significantly influence the composites' porosity and thermal conductivity. Specifically, higher feather keratin content is associated with lesser sulfur and reduced crosslinking due to shorter amino acids, leading to increased porosity and pore sizes. This, in turn, results in a decrease in ß-structured hydrogen bond networks, raising non-ordered protein structures and diminishing thermal conductivity from 0.044 W/(m·K) for pure alginate matrices to between 0.033 and 0.038 W/(m·K) for keratin-alginate composites, contingent upon the specific ratio of feather to hair keratin used. Mechanical evaluations further indicate that composites with a higher ratio of hair keratin exhibit an enhanced compressive modulus, ranging from 60 to 77 kPa, demonstrating the potential for tailored mechanical properties to suit various applications. The research underscores the critical role of sulfur content and the crosslinking index within keratin's structures, significantly impacting the thermal and mechanical properties of the matrices. The findings position keratin-based composites as environmentally friendly alternatives to traditional insulation materials.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Conductividad Térmica / Plumas / Cabello / Queratinas Límite: Humans Idioma: En Revista: Int J Biol Macromol Año: 2024 Tipo del documento: Article País de afiliación: Taiwán Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Conductividad Térmica / Plumas / Cabello / Queratinas Límite: Humans Idioma: En Revista: Int J Biol Macromol Año: 2024 Tipo del documento: Article País de afiliación: Taiwán Pais de publicación: Países Bajos