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Complex fiber modified by keratin whiskers and preparation method thereof

A technology of keratin fiber and composite fiber, which is applied in the direction of fiber chemical characteristics, spinning solution preparation, dry spinning method, etc., can solve the problems of fiber mechanical performance deterioration, use performance not fully exerted, and low grafting rate, etc. Achieve the effect of improving anti-ultraviolet performance and antistatic performance

Inactive Publication Date: 2009-09-09
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the first method is that the grafting rate of protein and polymer materials is low, the composition of the fiber body is still dominated by polymer materials, and the excellent properties of proteins have not been fully utilized in the performance of the fibers. The disadvantage of this method is that the incorporation of granular structural units is likely to cause deterioration of the mechanical properties of the fiber

Method used

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  • Complex fiber modified by keratin whiskers and preparation method thereof
  • Complex fiber modified by keratin whiskers and preparation method thereof
  • Complex fiber modified by keratin whiskers and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Cut the washed waste wool into 3-5mm long fiber segments, immerse in pure formic acid with a solid-to-liquid ratio of 1g / 100ml, and ultrasonically vibrate for 5 hours at a constant temperature water bath at 20°C with a frequency of 20kHz and a power of 200W; use an 80-mesh screen Filter to remove unreacted natural keratin fibers, filter the filtrate with a 350-mesh sieve to obtain micron-sized keratin whiskers, wash with distilled water and dry; the obtained keratin whiskers are immersed in pure In formic acid, ultrasonically oscillate at a frequency of 20kHz and a power of 50W for 5h in a constant temperature water bath at 20°C; filter the obtained mixture with a 350-mesh screen, and centrifuge the filtrate at 15°C at a speed of 3000rpm for 2h to obtain submicron keratin whiskers. Rinse with distilled water and dry.

[0025] 95 parts by weight of polyvinyl alcohol (polymerization degree 4000-6000) are dissolved in water at a temperature of 100° C. 3 μm, the length is ...

Embodiment 2

[0027] Cut the washed waste yak hair into 3-5mm long fiber segments, immerse in pure dichloroacetic acid with a solid-to-liquid ratio of 4g / 100ml, and vibrate ultrasonically at a frequency of 40kHz and a power of 600W in a constant temperature water bath at 100°C for 2h; use 120 The unreacted natural keratin fibers are removed by mesh sieve filtration, and the filtrate is filtered with a 450 mesh sieve to obtain micron-sized keratin whiskers, which are washed with distilled water and dried; the obtained keratin whiskers are 4g / 100ml Immerse in pure dichloroacetic acid and vibrate ultrasonically at a frequency of 40kHz and a power of 200W in a constant temperature water bath at 100°C for 2h; filter the obtained mixture with a 450 mesh screen, and centrifuge the filtrate at 25°C at a speed of 7000rpm for 1h to obtain submicron Keratin whiskers, rinsed with distilled water and dried.

[0028] 90 parts by weight of polyvinyl alcohol (polymerization degree 4000-6000) is dissolved i...

Embodiment 3

[0030] Cut the washed waste pig hair into 3-5mm long fiber segments, immerse in pure trifluoroacetic acid at a solid-to-liquid ratio of 1g / 100ml, and crush it for 3 hours at 20°C with a frequency of 20kHz and a power of 200W, using a probe-type ultrasonic crushing method. Cool in an ice-water bath; filter with an 80-mesh screen to remove unreacted natural keratin fibers, filter the filtrate with a 350-mesh screen to obtain micron-sized keratin whiskers, wash and dry with distilled water; The liquid ratio is 1g / 100ml, immersed in pure trifluoroacetic acid at 20°C with a frequency of 20kHz and a power of 50W, and crushed by a probe-type ultrasonic crushing method for 3h; after filtering the obtained mixture with a 350-mesh screen, the filtrate is Centrifuge at 3000rpm for 2h to obtain submicron keratin whiskers, wash with distilled water and dry.

[0031] 85 parts by weight of polyvinyl alcohol (polymerization degree 4000-6000) are dissolved in water at a temperature of 110° C. 3...

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Abstract

The invention provides complex fiber modified by keratin whiskers and a preparation method thereof. The complex fiber modified by keratin whiskers consists of a high molecular material and the keratin whiskers extracted from natural keratin fiber and distributed in the high molecular material, wherein, weight ratio of the keratin whiskers to the high molecular material is 5-20:80-95, and the keratin whiskers are oriented along an axial direction of the fiber in the complex fiber. The complex fiber has mechanical properties meeting production and processing needs, and obviously improved hygroscopicity, dyeability, ultraviolet resistance and static resistance properties. Protein whiskers can be prepared from waste wool or other animal fiber materials without spinning value, and has wide sources of raw materials, low cot and simple processing. The production of whiskers modified complex fiber by wet spinning or dry spinning has the same processing course as the traditional process, is easy to be industrialized and has significant economic benefit.

Description

technical field [0001] The invention relates to a composite fiber modified by keratin whiskers and a preparation method thereof, belonging to the technical field of composite fibers. Background technique [0002] With the continuous progress of science and technology, many protein-modified functional textile fiber materials have appeared one after another. Traditional chemical fibers not only improve their own shortcomings of moisture absorption, air permeability and poor dyeability through modification, but also have functions such as antistatic, anti-ultraviolet and health care. Currently, many patents have reported such technologies. [0003] Chinese patent "Acrylic surface grafted protein modified fiber and its manufacturing method" (200510044184.2). The invention prepares a protein-modified fiber with a skin-core structure, the skin layer is a vegetable protein graft covering layer, and the core layer is acrylic fiber. The modified fiber surface is completely covered...

Claims

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Application Information

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IPC IPC(8): D01F6/50D01F6/54D01D1/02D01D5/04D01D5/06
Inventor 范杰于伟东刘洋
Owner DONGHUA UNIV
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