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Preparation method of adhesive based on protein and polysaccharide degradation and recombination

A technology of adhesives and polysaccharides, which is applied in the field of adhesive preparation, can solve the problems of low solid content, poor water resistance, corrosion resistance and general bonding performance of adhesives, and achieve high solid content, increased flowability and Water resistance, effect of improving handling performance

Inactive Publication Date: 2020-12-29
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the disadvantages of low solid content, poor water resistance, and general corrosion resistance and gluing performance of the adhesive in the prior art, and propose a kind of adhesive based on the degradation and recombination of proteins and polysaccharides. The preparation method of the agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for preparing an adhesive based on protein and polysaccharide degradation and recombination, the method comprising:

[0024] S1: Prepare 500 parts of soybean meal, put the soybean meal into a pulverizer and grind it, take out the crushed soybean meal powder, put 500 parts of soybean protein into the soybean meal powder for mixing, and add 2000 parts of Water is stirred to obtain initial adhesive solution;

[0025] S2: Put the initial adhesive solution described in S1 into the mixer, add 300 parts of lime milk into the mixer, stir for 10 minutes, add 130 parts of sodium hydroxide into the mixer , the stirring time is 8 minutes, adding 50 parts of copper chloride to the mixer for stirring, the stirring time is 5 minutes, and the semi-finished adhesive solution is obtained;

[0026] S3: Heat the adhesive solution described in S2 to 40 degrees Celsius, put 145 parts of chitinase into the mixer for stirring, and the stirring time is 10 minutes, and then put 60 part...

Embodiment 2

[0037] A method for preparing an adhesive based on protein and polysaccharide degradation and recombination, the method comprising:

[0038] S1: Prepare 500 parts of soybean meal, put the soybean meal into a pulverizer and grind it, take out the crushed soybean meal powder, put 500 parts of soybean protein into the soybean meal powder for mixing, and add 2000 parts of Water is stirred to obtain initial adhesive solution;

[0039] S2: Put the initial adhesive solution described in S1 into the mixer, add 300 parts of lime milk into the mixer, stir for 10 minutes, add 130 parts of sodium hydroxide into the mixer , the stirring time is 8 minutes, adding 50 parts of copper chloride to the mixer for stirring, the stirring time is 5 minutes, and the semi-finished adhesive solution is obtained;

[0040] S3: Heat the adhesive solution described in S2 to 40 degrees Celsius, put 145 parts of chitinase into the mixer for stirring, and the stirring time is 10 minutes, and then put 60 part...

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Abstract

The invention belongs to the field of adhesive preparation, particularly relates to a preparation method of an adhesive based on protein and polysaccharide degradation and recombination, and providesthe following scheme aiming at the problems of low solid content, poor water resistance and general corrosion resistance and bonding performance of an existing adhesive: the method comprises the following steps: S1, preparing 500 parts of soybean meal, crushing soybean meal in a crusher, taking out the crushed soybean meal powder, mixing 500 parts of soybean protein in the soybean meal powder, adding 2000 parts of water while mixing, and conducting stirring to obtain an initial adhesive solution; and S2, putting the initial adhesive solution obtained in the step S1 into a mixer, adding 300 parts of lime milk into the mixer, and conducting stirring for 10 minutes. The adhesive is advanced in preparation method, free of toxic substances, high in solid content, good in water resistance and high in corrosion resistance and bonding performance.

Description

technical field [0001] The invention relates to the technical field of adhesive preparation, in particular to a method for preparing an adhesive based on protein and polysaccharide degradation and recombination. Background technique [0002] my country is short of precious wood resources, but there are abundant plantation forest resources. The wood-based panels prepared by using plantation fast-growing wood and agricultural and forestry processing residues through adhesives are the main raw materials for furniture floors and interior decoration in the living environment. In 2016, The total output of wood-based panels in my country is 320 million cubic meters, accounting for about 50% of the world's total output. Based on the average production of 9 cubic meters of wood-based panels per ton of adhesive, the consumption of wood adhesives in my country in 2015 was about 40 million tons, of which urea-formaldehyde resin and its modified products accounted for more than 90% of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J189/00C09J105/04C09J163/00C09J161/24C09J11/04C09J11/06C09J11/08
CPCC08K2003/2206C08L2205/025C08L2205/035C09J11/04C09J11/06C09J11/08C09J189/00C08L89/00C08L5/04C08L63/00C08L61/24C08K13/02C08K3/22C08K3/16
Inventor 夏常磊葛省波罗永宏盛烨泉吴英姬李建章
Owner NANJING FORESTRY UNIV
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