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A peanut meal-based protein adhesive and its preparation method and application

A peanut meal and adhesive technology, which is applied in the field of vegetable protein-based adhesive preparation, can solve the problems of hindering the development, popularization and application of vegetable protein-based adhesives, poor water resistance and high cost, and achieves good high-speed die-cutting performance, Avoid the harm of formaldehyde and overcome the effect of poor water resistance

Active Publication Date: 2020-09-04
INST OF QUALITY STANDARDS & TESTING TECH FOR AGRO PROD OF SHANDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the inventors found that the current vegetable protein-based adhesives often have problems such as low bond strength, slow curing speed, low solid content, high cost, and poor water resistance, which hinder the further development and popularization of vegetable protein-based adhesives.

Method used

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Examples

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preparation example Construction

[0031] In yet another specific embodiment of the present invention, the preparation method of the above-mentioned peanut meal-based protein adhesive is provided, comprising the following steps:

[0032] S1. Take peanut meal powder and pass through a 150-200 mesh sieve, add the sieved peanut meal powder into water and heat up to 30-40°C, stir and add cellulase for 0.4-1 hour, then stir and add trypsin to continue the enzyme Solution 0.5 ~ 1h to get solution I;

[0033] S2. Add sodium dodecylsulfonate to solution I and raise the temperature to 70-80° C., keep for 0.5-1 hour to obtain solution II;

[0034] S3. When solution II cools down to 30-35°C, stir and add ammonium zirconium carbonate and water-based epoxy resin as a crosslinking agent, and maintain 30-35°C for 0.4-1.2 hours to obtain solution III;

[0035] S4. Add lithium-based bentonite and nano-silicon carbide to solution III, stir for 5-10 minutes, and stir evenly to obtain the peanut meal-based protein adhesive.

[0...

Embodiment 1

[0046] A peanut meal-based protein adhesive prepared from the following raw materials in parts by weight:

[0047] 30 parts of peanut meal, 0.5 parts of trypsin, 0.4 parts of cellulase, 0.6 parts of sodium dodecylsulfonate, 4 parts of ammonium zirconium carbonate, 8 parts of water-based epoxy resin, 2 parts of lithium-based bentonite, 1 part of nano-silicon carbide , 120 parts of water.

[0048] Concrete preparation method comprises steps as follows:

[0049] S1. Take peanut meal powder and pass through a 200-mesh sieve, add the sieved peanut meal powder into water and raise the temperature to 35°C, stir and add cellulase for 0.5h of enzymolysis, then stir and add trypsin to continue enzymolysis for 0.5h to obtain a solution 1; Stirring speed is 60rpm;

[0050] S2. Add sodium dodecylsulfonate to solution I and raise the temperature to 75° C., stirring at a speed of 100 rpm, and keep for 1 hour to obtain solution II;

[0051] S3. When solution II is cooled to 30°C, stir (sti...

Embodiment 2

[0055] A peanut meal-based protein adhesive prepared from the following raw materials in parts by weight:

[0056] 30 parts of peanut meal, 0.5 parts of trypsin, 0.4 parts of cellulase, 0.6 parts of sodium dodecylsulfonate, 4 parts of ammonium zirconium carbonate, 8 parts of water-based epoxy resin, 2 parts of lithium-based bentonite, 1 part of nano-silicon carbide , 120 parts of water.

[0057] Concrete preparation method comprises steps as follows:

[0058] S1. Take peanut meal and pass through a 150-mesh sieve, add the sieved peanut meal powder into water and raise the temperature to 35°C, stir and add cellulase for 0.5h of enzymolysis, then stir and add trypsin for 0.5h of enzymolysis to obtain a solution 1; Stirring speed is 60rpm;

[0059] S2. Add sodium dodecylsulfonate to solution I and raise the temperature to 75° C., stirring at a speed of 100 rpm, and keep for 1 hour to obtain solution II;

[0060] S3. When solution II is cooled to 30°C, stir (stirring speed: 80r...

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Abstract

The invention provides a peanut meal based protein adhesive, and a preparation method and an application thereof. According to the invention, peanut meal is used as a raw material and subjected to enzymatic modification, so the influence on bonding strength and water resistance of a protein adhesive due to susceptibility to being destroyed by hydrolysis for alkali which is traditionally adopted asa modifier to stretch protein molecules is avoided; meanwhile, by cooperation of raw material components, an environmentally-friendly low-cost peanut meal based protein adhesive with good bonding strength and storage stability is finally prepared; and the peanut meal based protein adhesive provided by the invention can be used as a label adhesive and has good practical application value.

Description

technical field [0001] The invention belongs to the technical field of preparation of vegetable protein-based adhesives, and in particular relates to a peanut meal-based protein adhesive and its preparation method and application. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Peanut meal is a by-product of peanut kernels after oil extraction, which is rich in protein and other nutrients. However, due to the high-temperature pressing and solvent extraction process during the oil extraction process, the peanut protein is severely denatured, and the color and smell deteriorate. Its biological function as a protein is reduced or lost, and a certain amount of aflatoxin is co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J189/00C09J163/00C09J11/04
CPCC08K2201/011C09J11/04C09J189/00C08L63/00C08K3/28C08K3/346C08K3/34
Inventor 王磊李倩赵善仓苑学霞
Owner INST OF QUALITY STANDARDS & TESTING TECH FOR AGRO PROD OF SHANDONG ACADEMY OF AGRI SCI