Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for preparing feather keratin sponge membrane from feather residue

A technology of feather keratin and feathers, which is applied in the field of reuse of feather residues, achieves the effects of abundant raw material sources, simple and easy preparation methods, and broad application prospects

Inactive Publication Date: 2012-06-27
DONGHUA UNIV
View PDF4 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing patents and literatures, chemical extraction of keratin often focuses on soluble protein solution, and the insoluble protein filter residue generated during extraction is discarded as waste. Few studies have mentioned the performance of the insoluble protein filter residue and discussed its further research

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) urea, sodium bisulfite (NaHSO 3 ), sodium dodecyl sulfate (SDS) were dissolved in distilled water at a mass ratio of 48:10:5 at 50° C. to form a transparent solution, then added feather fiber (white down), stirred, nitrogen protection, and heated in a water bath for 4 hours.

[0021] (2) Filter the reaction solution to obtain a soluble protein solution and an insoluble protein filter residue, wash the filter residue 6 times and divide it into equal parts, mix it with glycerin and stir evenly, let stand for defoaming, and then freeze and dry at low temperature Film production, the obtained film is white opaque, uniform and flat, with dense gaps, and the thickness of the film is slightly smaller than that before film production. The film with too little glycerin is brittle and brittle, and the film with too much glycerin is too soft and brittle. , Adding an appropriate amount of glycerin to the film has high flexibility and high elasticity, and can withstand multiple ...

Embodiment 2

[0023] (1) urea, sodium metabisulfite (Na 2 S 2 o 5 ), sodium dodecyl sulfate (SDS) were dissolved in distilled water at a mass ratio of 48:10:5 at 50° C. to form a transparent solution, then added feather fiber (white down), stirred, nitrogen protection, and heated in a water bath for 4 hours.

[0024] (2) Filter the reaction solution to obtain a soluble protein solution and an insoluble protein filter residue, wash the filter residue 6 times and divide it into equal parts, mix it with glycerin and stir evenly, let stand for defoaming, and then freeze and dry at low temperature Film production, the obtained film is white opaque, uniform and flat, with dense gaps, and the thickness of the film is slightly smaller than that before film production. The film with too little glycerin is brittle and brittle, and the film with too much glycerin is too soft and brittle. , Adding an appropriate amount of glycerin to the film has high flexibility and high elasticity, and can withstan...

Embodiment 3

[0026] (1) urea, sodium metabisulfite (Na 2 S 2 o 5 ), sodium dodecyl sulfate (SDS) were dissolved in distilled water at a mass ratio of 10:2:1 at 30°C to form a transparent solution, then added shredded pruning feathers, stirred, nitrogen protection, and heated in a water bath for 6 hours.

[0027] (2) Filter the reaction solution to obtain a soluble protein solution and an insoluble protein filter residue, wash the filter residue 6 times and divide it into equal parts, mix it with glycerin and stir evenly, let stand for defoaming, and then freeze and dry at low temperature Film production, the obtained film is brown opaque, uniform and smooth, with dense gaps, slightly smaller than the thickness of the material before film production, the film with too little glycerin is brittle and brittle, and the film with too much glycerin is too soft and brittle , Adding an appropriate amount of glycerin to the film has high flexibility and high elasticity, and can withstand multiple ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for preparing a feather keratin sponge membrane from feather residue. The method comprises the following steps of: (1) dissolving urea, a reductant / oxidant and a stabilizer into distilled water at the temperature of 30-70 DEG C to form a transparent solution, then, adding feather, stirring, carrying out nitrogen protection, heating in a water bath and carrying out reaction for 2-6 hours, and filtering a reaction solution to obtain a soluble protein solution and insoluble protein filter residue; and (2) washing the filter residue, removing the reductant / oxidant and the stabilizer, stilling to defoam, and then, carrying out freeze drying to obtain the sponge membrane. According to the method, the keratin membrane is prepared by using the insoluble protein filter residue produced by a keratin extraction chemical method and has the advantages of evenness and smoothness in texture, compaction in pore space, high flexibility, strong water absorption and water retention, water insolubility and no toxicity, and the comprehensive utilization of heather when feather keratin is extracted by the chemical method is achieved, so that the method for preparing the feather keratin sponge membrane from the feather residue has a great application prospect in industry.

Description

technical field [0001] The invention belongs to the field of reutilization of feather residues, in particular to a method for preparing feather keratin sponge film from feather residues. Background technique [0002] As a waste, feathers have the characteristics of large output and difficult to degrade. However, feathers as a resource are renewable resources rich in keratin. The methods for extracting keratin from feathers mainly include mechanical, chemical and biological methods, with chemical methods being the most commonly used. At present, the materials that use chemical methods to extract keratin to prepare functional materials are mainly based on the prepared soluble protein. The patent "A Modified Keratin Material and Its Preparation Method and Application" (patent application number: 201010601153.3, publication number: 102120753 ) In order to avoid the use of cross-linking agents and limit the application of materials in medical and other fields, the soluble protei...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08J9/00C08L89/04
Inventor 庄媛周美华曹张军吴小倩赵晓祥
Owner DONGHUA UNIV