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A kind of environment-friendly keratin-based water-resistant adhesive and preparation method thereof

A keratin and adhesive technology is applied in the preparation of protein adhesives, animal glue or gelatin, adhesives, etc., and can solve problems such as increased cost, many preparation processes, human health hazards, etc., and achieves alleviation of petrochemical energy shortages, Reduce environmental pollution and solve the effect of formaldehyde release

Active Publication Date: 2021-10-22
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Formaldehyde series resin adhesives (urea formaldehyde, phenolic formaldehyde, melamine formaldehyde glue) have been widely used in industry due to the advantages of low cost, simple manufacturing process and high strength, but there are also many defects: 1) The raw materials of formaldehyde series resin adhesives are petrochemical products , as a non-renewable resource, oil is scarce and its cost is increasing day by day; 2) There are many free formaldehyde in formaldehyde series resin adhesives, and the volatilization of formaldehyde will not only cause environmental pollution, but also cause great harm to human health
The method has many preparation procedures, the method is loaded down with trivial details, and the production cost has been improved.

Method used

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  • A kind of environment-friendly keratin-based water-resistant adhesive and preparation method thereof
  • A kind of environment-friendly keratin-based water-resistant adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] An environment-friendly keratin-based water-resistant adhesive, comprising the following components in parts by mass:

[0032] 450 parts of livestock and poultry hair; the solid-to-liquid ratio of livestock and poultry hair to water is 1:5; 30 parts of KOH; 300 parts of 30% H 2 o 2 40 parts of urea solution; 0.1 part of sodium bisulfite; 4.5 parts of potassium persulfate; 10 parts of glycidyl methacrylate; the concentration of the urea solution is 2mol / L.

Embodiment 2

[0034] An environment-friendly keratin-based water-resistant adhesive, comprising the following components in parts by mass:

[0035] 550 parts of livestock and poultry hair; solid-liquid ratio of 1:15; 50 parts of NaOH; 360 parts of 30% H 2 o 2 90 parts of urea solution; 3.6 parts of sodium bisulfite; 10 parts of ammonium persulfate; 30 parts of glycidyl methacrylate; the concentration of the urea solution is 4mol / L.

Embodiment 3

[0037] An environment-friendly keratin-based water-resistant adhesive, comprising the following components in parts by mass:

[0038] 500 parts of livestock and poultry hair; solid-liquid ratio of 1:10; 40 parts of KOH; 330 parts of 30% H 2 o 2 60 parts of urea solution; 1.8 parts of sodium bisulfite; 7.2 parts of sodium persulfate; 20 parts of glycidyl methacrylate; the concentration of the urea solution is 3mol / L.

[0039] A preparation method of an environment-friendly keratin-based water-resistant adhesive, comprising the steps of:

[0040] Step 1, take 450-550 parts of livestock and poultry hair, and put it into the reaction vessel with a solid-to-liquid ratio of 1:5-15, then add 30-50 parts of KOH or NaOH, 300-360 parts of 30% H 2 o 2 , react and stir at 75-95°C for 3-5 hours, stop heating, cool, and discharge to obtain keratin hydrolyzate, and dry to obtain keratin powder for later use;

[0041] Step 2, disperse 90-120 parts of keratin powder in 40-90 parts of urea ...

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PUM

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Abstract

An environment-friendly keratin-based water-resistant adhesive, comprising the following raw material components in parts by mass: 450-550 parts of livestock and poultry hair; 30-50 parts of alkali; 300-360 parts of 30% H 2 o 2 40-90 parts of urea solution; 0.1-3.6 parts of sodium bisulfite; 4.5-10 parts of initiator; 10-30 parts of glycidyl methacrylate; a preparation method of an environment-friendly biomass water-resistant adhesive, The method includes the following steps: step 1, preparing keratin hydrolyzate, and drying to obtain keratin powder for later use; step 2, modifying the keratin powder obtained in step 1 to prepare a water-resistant adhesive; environmental protection, simple process, and low cost , Has good stability and water resistance, and excellent bonding performance.

Description

technical field [0001] The invention belongs to the technical field of adhesive preparation, and relates to an environment-friendly keratin-based water-resistant adhesive and a preparation method thereof. Background technique [0002] In recent years, with the continuous development of social economy, the production of adhesives and the demand of the industry are growing continuously and at a high speed. Formaldehyde series resin adhesives (urea formaldehyde, phenolic formaldehyde, melamine formaldehyde glue) have been widely used in industry due to the advantages of low cost, simple manufacturing process and high strength, but there are also many defects: 1) The raw materials of formaldehyde series resin adhesives are petrochemical products , as a non-renewable resource, petroleum is scarce and its cost is increasing; 2) There are many free formaldehyde in formaldehyde series resin adhesives, and the volatilization of formaldehyde will not only cause environmental pollution...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J189/00C08F289/00C08F220/32C08H1/00
CPCC08F289/00C08H1/00C09J189/00C08F220/325
Inventor 李闻欣陈玉柔
Owner SHAANXI UNIV OF SCI & TECH