Method for preparing chicken feather keratin degradable plastics

A technology for keratin degradation and keratin is applied in the field of preparation of chicken feather keratin degradable plastics, which can solve the problems of high cost, difficult to satisfy use performance, difficult to degrade, etc., and achieves low cost, broad application prospect and development prospect, and preparation method. simple effect

Inactive Publication Date: 2011-06-22
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current degradable plastics are difficult to completely degrade, the cost is too high, and it is difficult to meet the performance and other problems.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1. A preparation method of chicken feather keratin plastic, comprising:

[0021] (1) Dissolve chicken feathers in a mixed solution of alkali, sodium hypochlorite, peracetic acid, urea, Stenotrophomonas maltophilia DHHJ keratinase and N-acyl amino acid anionic surfactant, and centrifuge after dissolving for 4 hours to obtain transparent feather keratin The original solution is to add hydroxyapatite to the feather keratin solution, filter the reacted product, then wash it with a mixed solution of deionized water and ethanol until it is neutral, dry it and grind it to obtain the required keratin powder.

[0022] (2) Add keratin powder and octyl allyl dimethyl ammonium chloride into a three-necked flask equipped with a stirrer, add an appropriate amount of deionized water, stir in a constant temperature water bath at 40°C, and adjust the pH with alkali 7.5, dissolve all the keratin and long-chain quaternary ammonium salts, blow nitrogen, add 80mL of 0.1mol / L potassium persu...

Embodiment 2

[0025] 1. A preparation method of chicken feather keratin plastic, comprising:

[0026] (1) Dissolve chicken feathers in a mixed solution of alkali, sodium hypochlorite, peracetic acid, urea, serine proteolytic enzyme RWJ and carboxylic acid type amino acid surfactant, and centrifuge after dissolving for 5.5 hours to obtain a transparent feather keratin stock solution. Adding sodium edetate and guanidine tartrate to the protein solution, filtering the reacted product, washing with a mixed solution of deionized water and ethanol until neutral, drying and grinding to obtain the required keratin powder.

[0027] (2) Add keratin powder and dodecyl allyl dimethyl ammonium chloride into a three-necked flask equipped with a stirrer, add an appropriate amount of deionized water, stir in a constant temperature water bath at 50°C, and adjust the pH with alkali In 8.3, dissolve all keratin and long-chain quaternary ammonium salts, blow nitrogen, add 115mL of 0.1mol / L potassium persulfate...

Embodiment 3

[0030] 1. A preparation method of chicken feather keratin plastic, comprising:

[0031] (1) Dissolve chicken feathers in a mixed solution of alkali, sodium hypochlorite, peracetic acid, urea, YYW-1 keratinase, N-acyl amino acid anionic surfactant and carboxylic acid amino acid surfactant, and centrifuge after dissolving for 7 hours to obtain transparent Feather keratin stock solution, adding guanidine phosphate to the feather keratin solution, filtering the reacted product, washing with a mixed solution of deionized water and ethanol to neutrality, drying and grinding to obtain the required keratin powder.

[0032](2) Add keratin powder and cetyl allyl dimethyl ammonium chloride into a three-necked flask equipped with a stirrer, add an appropriate amount of deionized water, stir in a constant temperature water bath at 60°C, and adjust the pH with alkali At 9, dissolve all keratin and long-chain quaternary ammonium salts, blow nitrogen, add 150 mL of 0.1 mol / L potassium persulf...

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Abstract

The invention relates to a method for preparing chicken feather keratin degradable plastics, which comprises that: (1) chicken feather is dissolved, centrifugated and added with a keratin complexing agent; (2) keratin powder and long chain quaternary ammonium are added into a container, added with deionized water for thermostatic waterbath, introduced with nitrogen, added with potassium peroxodisulfate and sodium sulfite solution, and added with mixed liquid of carboxymethyl starch, polybasic carboxylic acid and quaternary ammonium salt of chitosan in stirring; and after mixture liquid is obviously thickened, reaction liquid is immediately poured into calcium chloride solution for reaction in thermostatic waterbath; and (3) modified keratin powder, sodium alginate, carboxymethyl chitosan and modified soy protein are mixed and then put into a mould, TEC tri-ethyl citrate, amino polyether and ethanol water are evenly mixed and added into the mould dropwise, and then the mould is heated and pressurized. The preparation method is simple, has low cost for multiple kinds of processing forming on common plastic processing equipment, and is suitable for industrial production; and the prepared keratin plastic can be completely degraded, has no pollution and can be used for a long time.

Description

technical field [0001] The invention belongs to the field of preparation of degradable plastics, in particular to a preparation method of chicken feather keratin degradable plastics. Background technique [0002] For more than half a century, with the rapid development of plastics industry technology, the world's total output of plastics has exceeded 1.17×1.08 million tons, and its use has penetrated into various fields of industry, agriculture, and people's lives and is juxtaposed with steel, wood, and cement. Become the four pillar materials of the national economy. However, the extensive use of plastics also brings a large amount of solid waste, especially the widespread use of disposable plastic products such as food packaging bags, beverage bottles, agricultural films, etc., leaving a large amount of solid waste in public places and In the ocean, or left in the soil layer of cultivated land, it seriously pollutes the living environment of human beings and becomes a wor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L5/08C08L89/04C08J5/00C08L5/04
Inventor 何瑾馨刘保江高品程绪帮刘路赵强强
Owner DONGHUA UNIV
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