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Keratin crystal whisker enhanced homogeneous composite fiber and preparation method thereof

A keratin fiber and composite fiber technology, applied in the field of fibers, can solve the problem that protein composite fibers cannot be comparable to natural keratin fibers, and achieve the effect of avoiding taking problems and good hygroscopicity.

Inactive Publication Date: 2009-11-11
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above patented technologies can only improve the performance of protein composite fibers to a certain extent, and the obtained protein composite fibers cannot be compared with natural keratin fibers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] After washing, degreasing and drying human hair, immerse it in a hydrogen peroxide solution with a weight concentration of 2% at a solid-to-liquid ratio of 2g / 50ml and oxidize it for 1 hour. After washing and drying, cut it into 3-5mm short fiber segments with cutting equipment . Immerse the fiber fragments in an aqueous solution of 90% trifluoroacetic acid with a solid-to-liquid ratio of 1g / 50ml, and ultrasonically crush them with a power of 400W and a frequency of 20kHz for 2.5h, then remove unbroken natural keratin fibers by filtering them through a 100-mesh screen. The filtrate is filtered with a 400-mesh sieve to obtain keratin whiskers with micron diameters. The filtrate was centrifuged at 4000 rpm for 0.5 h to obtain keratin whiskers with submicron diameters.

[0026] Sodium sulfite and sodium dodecylsulfonate are added to 6M aqueous urea solution to obtain a solution containing reducing agent, protein denaturant and surfactant, and the weight percent concentrat...

Embodiment 2

[0029] After washing, degreasing and drying the waste wool, immerse it in the peracetic acid solution with a weight concentration of 1% at a solid-to-liquid ratio of 2g / 50ml, oxidize it at room temperature for 2 hours, then wash and dry the wool, and cut it into 3 - 5mm short fiber segments. Immerse the fiber fragments in formic acid with a weight concentration of 80% at a solid-to-liquid ratio of 1g / 50ml, ultrasonically oscillate with a power of 600W and a frequency of 20kHz for 1h, filter through a 100-mesh screen to remove unbroken natural keratin fibers, and pass the filtrate through a 400-mesh screen Mesh filtration yields micron diameter keratin whiskers. The filtrate was centrifuged at 4000 rpm for 0.5 h to obtain keratin whiskers with submicron diameters.

[0030] Sodium bisulfite and sodium dodecylsulfonate are added to 10M thiourea aqueous solution to obtain a solution containing reducing agent, protein denaturant and surfactant, and the weight percent concentration...

Embodiment 3

[0033] After washing, degreasing and drying the discarded rabbit hair, immerse it in a dilute solution of performic acid with a weight concentration of 0.5% at a solid-to-liquid ratio of 2g / 50ml to oxidize for 1.5h, then wash and dry the rabbit hair, and cut it into 3 - 5mm short fiber segments. Immerse the fiber fragments in dichloroacetic acid with a weight concentration of 80% at a solid-to-liquid ratio of 1g / 50ml, ultrasonically vibrate for 3h with a power of 550W and a frequency of 20kHz, filter with a 100-mesh screen to remove unbroken natural keratin fibers, and filter the filtrate with 400 The keratin whiskers with a diameter of micron are obtained by filtering through a mesh sieve. The filtrate was centrifuged at 4000 rpm for 0.5 h to obtain keratin whiskers with submicron diameters.

[0034] Potassium sulfite and sodium lauryl sulfonate are added in 8M lithium bromide aqueous solution to obtain the solution that contains reducing agent, protein denaturing agent and ...

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Abstract

The invention provides a keratin crystal whisker enhanced homogeneous composite fiber and a preparation method thereof. The keratin crystal whisker enhanced homogeneous composite fiber consists of keratin matrixes and keratin crystal whiskers dispersed in the keratin matrixes, wherein the weight ratio of the keratin crystal whiskers to the keratin matrixes is 10-30:70-90; and the keratin crystal whiskers are distributed in the composite fiber along the axial direction of the fiber. The keratin crystal whisker enhanced homogeneous composite fiber and the preparation method can achieve homogenization spinning processing of keratin regenerated fibers. The keratin crystal whiskers can be prepared from waste wools or other animal fiber materials without spinning values, the raw materials have wide sources, the cost is low and the processing technique is simple.

Description

technical field [0001] The invention relates to a homogeneous composite fiber reinforced by keratin whiskers and a preparation method thereof, belonging to the field of fiber technology. Background technique [0002] Keratin natural fibers widely exist in nature, and the hair of various animals is keratin material. my country's textile industry and animal husbandry processing industry produce a large amount of waste animal hair fibers every year, and the arbitrary discarding of these waste keratin fibers will cause great environmental pollution and waste of resources. The content of keratin in animal fiber is more than 90%, which is an excellent renewable resource and has been widely used in cosmetics, textile printing and dyeing, biomedicine and other fields. In addition, keratin has good human affinity, hygroscopicity and antistatic properties, so it has become a new material for the development of functional fibers, and many patents have reported related technologies. ...

Claims

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Application Information

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IPC IPC(8): D01F4/00D01D1/02D01D5/06
Inventor 于伟东范杰刘洋
Owner DONGHUA UNIV
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