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Preparation method of magnetic nano cattle hair keratin sponge

A magnetic nano and keratin technology, applied in chemical instruments and methods, alkali metal oxides/hydroxides, inorganic chemistry, etc., can solve the problem of no magnetic adsorption of porous materials, etc., achieve good biocompatibility, recovery The effect of convenience and high material usage

Active Publication Date: 2018-08-17
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are many applications of keratin at present, there is no relevant research on magnetically adsorbed porous materials.

Method used

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  • Preparation method of magnetic nano cattle hair keratin sponge
  • Preparation method of magnetic nano cattle hair keratin sponge
  • Preparation method of magnetic nano cattle hair keratin sponge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method of magnetic nano bovine hair keratin sponge, comprising the following steps:

[0035] (1) Cow hair pretreatment: In the drum, soak and wash the cow hair with 8 times of water (gross weight) for 4 hours, and then rinse with 20 times of 1% sodium bicarbonate pretreatment solution for 3 times, each time for 30 minutes , and then rinsed with running water, placed the obtained wet cow hair on a tray, spread it evenly, and dried it in an oven at 70°C for 10 hours.

[0036] (2) Extraction of cow hair keratin: crush the cow hair after pretreatment in step (1), add it to a three-necked bottle, and then add hydrogen peroxide (30% content) with a gross weight of 100%, 100% sodium bisulfite, 50% Urea and 2% sodium lauryl sulfate were stirred and reacted for 3 hours at a temperature of 50°C and a liquid ratio of 1:15 to obtain a hydrolyzed solution of bovine hair keratin. After cooling it, filter it, and dialyze it with a dialysis membrane with a molecular cut-...

Embodiment 2

[0043] A preparation method of magnetic nano bovine hair keratin sponge, comprising the following steps:

[0044] (1) Cow hair pretreatment: In the drum, soak and wash the cow hair with 10 times of clean water (gross weight) for 3 hours, and then rinse with 18 times of 1.5% sodium lauryl sulfate pretreatment solution for 3 times, each time Rinse for 30 minutes, then rinse with running water, place the obtained wet cow hair on a tray, spread it evenly, and dry it in an oven at 75°C for 9 hours.

[0045] (2) Extraction of cow hair keratin: crush the cow hair after pretreatment in step (1), add it to a three-neck bottle, then add hydrogen peroxide (30% content) with a gross weight of 150%, 35% sodium sulfide, 35% urea and 1.5% ammonium lauryl sulfate was stirred and reacted for 2.5 hours at a temperature of 60°C and a liquid ratio of 1:20 to obtain a hydrolyzed solution of bovine hair keratin. It is cooled and then filtered, and dialyzed with a dialysis membrane with a molecular...

Embodiment 3

[0050] A preparation method of magnetic nano bovine hair keratin sponge, comprising the following steps:

[0051] (1) Cow hair pretreatment: soak and wash the cow hair with 12 times of clean water (gross weight) in the drum for 2.5 hours, then rinse with 15 times of 2% sodium carbonate pretreatment solution for 3 times, each time for 30 minutes, Then rinse with running water, place the obtained wet cow hair on a tray, spread it evenly, and dry it in an oven at 80°C for 8 hours.

[0052] (2) Extraction of cow hair keratin: crush the cow hair after pretreatment in step (1), add it to a three-necked bottle, and then add 30% peracetic acid, 50% sodium hydrosulfide, 40% zinc chloride and 4% sodium lauryl polyoxyethylene ether carboxylate was stirred and reacted for 2.5 hours at a temperature of 65°C and a liquid ratio of 1:19 to obtain a bovine hair keratin hydrolyzate. It was cooled and then filtered, and dialyzed with a dialysis membrane with a molecular cut-off of 7000. The dia...

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Abstract

The invention provides a preparation method of a magnetic nano cattle hair keratin sponge. The preparation method of the magnetic nano cattle hair keratin sponge comprises the following steps: (1) cattle hair pretreatment; (2) extraction of cattle hair keratin; (3) preparation of a cattle hair keratin sponge; (4) preparation of nano magnetic particles; and (5) preparation of a nano magnetic cattlehair keratin sponge. The cattle hair keratin sponge prepared by the method is black in appearance, has the characteristics of light weight, high porosity, good magnetic response effect and reusability, and can serve as a basic material for medical tissue repair, environment adsorption and pollution cleaning and the like.

Description

technical field [0001] The invention belongs to the technical field of utilization of biomass material resources and preparation of functional materials, and in particular relates to a preparation method of a magnetic nano bovine hair keratin sponge. Background technique [0002] It is well known that in order to obtain a smooth grained pelt, it is necessary to dehair the raw hide. At present, tannery mainly adopts wool destroying method and wool preserving method. The method of destroying hair is to dissolve the hair and epidermis to achieve the purpose of removing hair and epidermis; the method of preserving hair is to use chemical reagents or biological reagents to destroy or weaken the connection between hair roots and hair follicles and epidermis under certain conditions. The hair-preserving method for hair removal can reduce the discharge of ammonia nitrogen and sulfide in the water body, but the cow hair waste produced by the hair-preserving method is difficult to fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L26/00A61K47/42A61K47/02B01J20/24B01J20/26B01J20/28B01J20/30
CPCA61K47/02A61K47/42A61L26/0004A61L26/0047A61L26/0052A61L26/0085B01J20/06B01J20/24B01J20/261B01J20/28009B01J2220/4856C08L89/00
Inventor 刘洁张斐斐李彦春杜毅
Owner QILU UNIV OF TECH
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