| ANISOTROPY OF THE KERATIN FIBRE COMPOSITE |
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| 引用本文： | 陶肖明,R.Postle. ANISOTROPY OF THE KERATIN FIBRE COMPOSITE[J]. 东华大学学报(英文版), 1989, 0(2) |
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| 作者姓名： | 陶肖明 R.Postle |
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| 作者单位： | Department of Textile Technology of CTU，University of New South Wales Australia |
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| 摘 要： | This paper presents a composite model of the natural keratin fibres (wool and hair) whichconsists essentially of isotropic viscoelastic filaments, oriented parallel to each other in the fibreaxial direction, embedded in an isotropic viscoelastic matrix. The model accurately fits the exper-imental data on the fibre axial stress relaxation moduli and provides upper and lower bounds forthe initial/final values for the fibre transverse tensile and shear stress relaxation moduli andtransverse Poisson's ratio. The partially water penertrable filament phase of the composite modelis identified as the microfibrils in the fine structure of keratin. The strong anisotropy of keratinsin mechanical properties and hygral/thermal expansion is analyzed in terms of composite struc-ture and mechanical as well as the thermal/hygral properties of the two constituent phases.
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ANISOTROPY OF THE KERATIN FIBRE COMPOSITE |
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| Tao Xiaoming. ANISOTROPY OF THE KERATIN FIBRE COMPOSITE[J]. Journal of Donghua University, 1989, 0(2) |
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| Authors: | Tao Xiaoming |
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| Affiliation: | Tao Xiaoming,Department of Textile Technology of CTUR. Postle,University of New South Wales,Australia |
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| Abstract: | This paper presents a composite model of the natural keratin fibres (wool and hair) which consists essentially of isotropic viscoelastic filaments, oriented parallel to each other in the fibre axial direction, embedded in an isotropic viscoelastic matrix. The model accurately fits the exper- imental data on the fibre axial stress relaxation moduli and provides upper and lower bounds for the initial/final values for the fibre transverse tensile and shear stress relaxation moduli and transverse Poisson's ratio. The partially water penertrable filament phase of the composite model is identified as the microfibrils in the fine structure of keratin. The strong anisotropy of keratins in mechanical properties and hygral/thermal expansion is analyzed in terms of composite struc- ture and mechanical as well as the thermal/hygral properties of the two constituent phases. |
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| Keywords: | keratin composite materials fibre property anisotropic materials fibre structure |
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