CN110184029B - Peanut meal-based protein adhesive as well as preparation method and application thereof - Google Patents
Peanut meal-based protein adhesive as well as preparation method and application thereof Download PDFInfo
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- CN110184029B CN110184029B CN201910399293.8A CN201910399293A CN110184029B CN 110184029 B CN110184029 B CN 110184029B CN 201910399293 A CN201910399293 A CN 201910399293A CN 110184029 B CN110184029 B CN 110184029B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J189/00—Adhesives based on proteins; Adhesives based on derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The invention provides a peanut meal-based protein adhesive and a preparation method and application thereof.
Description
Technical Field
The invention belongs to the technical field of preparation of vegetable protein-based adhesives, and particularly relates to a peanut meal-based protein adhesive as well as a preparation method and application thereof.
Background
The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
The peanut meal is a byproduct of peanut kernels after oil pressing and contains rich nutritional ingredients such as protein, but the peanut protein is seriously denatured and deteriorated in color and smell due to the high-temperature pressing and solvent extraction processes in the oil pressing process, the biological functional property of the peanut protein is reduced or lost, and the high-temperature pressed peanut meal contains a certain amount of aflatoxin, so that the application of the peanut meal in the field of food is limited.
The adhesive has wide application in human society, people use more natural adhesive in the early period, and then, with the development of petroleum industry, chemical derivative adhesive based on additives of petroleum processing industry appears, and the adhesive is still widely applied to the present because of higher bonding strength and water resistance. However, since the formaldehyde-containing organic acid formaldehyde self-contained aldehyde substances, the organic acid formaldehyde self-contained aldehyde substance can cause serious pollution to the environment in the production process, and. Therefore, the environment-friendly adhesive taking renewable resources as raw materials conforms to the requirements of human on environment protection and sustainable development, and is an important direction in adhesive research. Among various renewable resources, biomass containing vegetable protein has the characteristics of high activity, easy modification and the like, and becomes a hotspot of research of people.
However, the inventor finds that the existing vegetable protein-based adhesives often have the problems of low bonding strength, low curing speed, low solid content, high cost, poor water resistance and the like, and further development, popularization and application of the vegetable protein-based adhesives are hindered.
Disclosure of Invention
The peanut meal-based protein adhesive is prepared by taking peanut meal as a raw material and carrying out enzymolysis modification on the peanut meal, so that the problem that the bonding strength and water resistance of the protein adhesive are affected because alkali is used as a modifier in the prior art and is easily hydrolyzed and damaged when protein molecules are stretched is solved, and the environment-friendly low-cost peanut meal-based protein adhesive with good bonding strength and storage stability is finally prepared by matching with other raw material components, so that the peanut meal-based protein adhesive has good practical application value.
The invention provides a peanut meal-based protein adhesive, which is prepared from the following raw materials in parts by weight:
20-40 parts of peanut meal, 0.2-1 part of trypsin, 0.1-0.5 part of cellulase, 0.5-2 parts of sodium dodecyl sulfate, 3-5 parts of ammonium zirconium carbonate, 5-10 parts of water-based epoxy resin, 1-3 parts of lithium bentonite, 0-2 parts of nano silicon carbide and 70-140 parts of water.
The second aspect of the invention provides a preparation method of the peanut meal-based protein adhesive, which comprises the following steps:
s1, crushing and sieving peanut meal, adding the sieved peanut meal into water, heating to a certain temperature, stirring, adding cellulase for enzymolysis for a certain time, stirring, adding trypsin for enzymolysis for a certain time to obtain a solution I;
s2, adding sodium dodecyl sulfate into the solution I, and reacting at a high temperature to obtain a solution II;
s3, cooling the solution II to 30-35 ℃, stirring, adding ammonium zirconium carbonate and water-based epoxy resin as a cross-linking agent, and reacting to obtain a solution III;
s4, adding lithium bentonite and nano silicon carbide into the solution III, and stirring uniformly at room temperature to obtain the peanut meal-based protein adhesive.
Wherein the content of the first and second substances,
in the step S1, the crushed peanut meal is sieved by a sieve with 150-200 meshes (preferably 200 meshes); heating to 30-40 ℃ (preferably 35 ℃);
stirring, adding cellulase for enzymolysis for 0.4-1 h, stirring, adding trypsin for continuous enzymolysis for 0.5-1 h to obtain a solution I;
the stirring speed is controlled to be 50-100 rpm.
In the step S2, the temperature is controlled to be 70-80 ℃ (preferably 75 ℃), and the temperature is kept for 0.5-1 h (preferably 1 h); the stirring speed is 80-120 rpm;
in the step S3, the reaction temperature is controlled to be 30-35 ℃ (preferably 30 ℃), and the reaction time is controlled to be 0.4-1.2 h (preferably 1 h); the stirring speed is controlled to be 60-100 rpm;
in the step S4, the stirring speed is controlled to be 50-100 rpm, and the stirring time is 5-10 min.
In a third aspect of the invention, the application of the peanut meal-based protein adhesive in serving as a label adhesive is provided.
The invention has the beneficial effects that: the invention adopts peanut meal as raw material to prepare the aldehyde-free protein-based adhesive, thereby effectively avoiding the formaldehyde hazard of the existing three-aldehyde adhesive and simultaneously effectively overcoming the defects of poor water resistance, low bonding strength or poor coating property of the existing protein-based wood adhesive.
Particularly, the peanut meal-based protein adhesive prepared by the invention can be preferably used as a label adhesive, has uniform texture, good water resistance, tensile resistance, initial adhesion and permanent adhesion, and good high-speed die cutting performance, and therefore, has good practical application value.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As mentioned above, the existing vegetable protein-based adhesives often have the problems of low bonding strength, slow curing speed, low solid content, high cost, poor water resistance and the like, and further development, popularization and application of the vegetable protein-based adhesives are hindered.
In view of the above, in a typical embodiment of the present invention, a peanut meal-based protein adhesive is provided, which is prepared from the following raw materials in parts by weight:
20-40 parts of peanut meal, 0.2-1 part of trypsin, 0.1-0.5 part of cellulase, 0.5-2 parts of sodium dodecyl sulfate, 3-5 parts of ammonium zirconium carbonate, 5-10 parts of water-based epoxy resin, 1-3 parts of lithium bentonite, 0-2 parts of nano silicon carbide and 70-140 parts of water.
In another specific embodiment of the invention, the peanut meal-based protein adhesive is prepared from the following raw materials in parts by weight:
30 parts of peanut meal, 0.5 part of trypsin, 0.4 part of cellulase, 0.6 part of sodium dodecyl sulfate, 4 parts of ammonium zirconium carbonate, 8 parts of water-based epoxy resin, 2 parts of lithium bentonite, 1 part of nano silicon carbide and 120 parts of water.
In another embodiment of the present invention, a preparation method of the peanut meal-based protein adhesive is provided, which comprises the following steps:
s1, crushing peanut meal, sieving with a sieve of 150-200 meshes, adding the sieved peanut meal into water, heating to 30-40 ℃, stirring, adding cellulase for enzymolysis for 0.4-1 h, stirring, adding trypsin for continuous enzymolysis for 0.5-1 h to obtain a solution I;
s2, adding sodium dodecyl sulfate into the solution I, heating to 70-80 ℃, and keeping for 0.5-1 h to obtain a solution II;
s3, cooling the solution II to 30-35 ℃, stirring, adding ammonium zirconium carbonate and water-based epoxy resin as a cross-linking agent, and reacting for 0.4-1.2 h at the temperature of 30-35 ℃ to obtain a solution III;
s4, adding lithium bentonite and nano silicon carbide into the solution III, stirring for 5-10 min, and uniformly stirring to obtain the peanut meal-based protein adhesive.
In another embodiment of the invention, the peanut meal-based protein adhesive is used as a label adhesive.
According to the invention, the peanut meal is fully mixed with the biological enzyme after being crushed, and the protein is modified by the biological enzyme enzymolysis, so that the damage of chemical modifiers such as acid and alkali to the protein can be effectively avoided, and meanwhile, the water resistance of the final adhesive can be further improved by effectively utilizing the Maillard reaction between the carbohydrate and the protein. Meanwhile, the inventor discovers in research that the storage stability of the final adhesive can be improved and the surface friction coefficient of the finally prepared adhesive is reduced by adopting a mode of step-by-step enzymolysis of cellulase and trypsin, so that the situations of label flashing and edge breakage in the label adhesive die-cutting process are reduced, and the die-cutting speed is increased. Meanwhile, the sodium dodecyl sulfate is adopted to further destroy the hydrophobic bond effect among peanut protein molecules, so that the wrapped groups in the peanut protein are further and fully released, thereby being beneficial to the full crosslinking of a subsequent crosslinking agent and improving the crosslinking efficiency and the gluing effect. By optimizing the selection and the dosage proportion of the cross-linking agent, the bonding strength is further improved, and the water resistance is also improved. The addition of the lithium bentonite effectively improves the initial viscosity, and the bonding performance of the adhesive is improved based on the small-size effect and the specific surface area effect of the nano silicon carbide.
To further illustrate the present invention, the following detailed description of the invention is given by way of specific examples, which are intended to be purely exemplary and are not to be construed as limiting the invention. The adhesive performance of each example and each experimental example is evaluated as follows:
the initial adhesion test is carried out according to the GB/T4852-2002 standard and is carried out by adopting a CZY-G initial adhesion tester;
the permanent viscosity test is determined according to the GB/T4851-2014 standard;
the viscosity measurement is carried out by adopting a digital display viscometer, and the measurement temperature is controlled to be room temperature (25 +/-1 ℃);
the tensile strength is measured specifically as follows: cutting the photo paper into strips of 2.5cm multiplied by 5cm, coating a certain amount of label glue on one surface of the strip photo paper, wherein the coating length is 0.5cm, the strips photo paper is adhered to one side of a glass sheet (glass slide) of 2.5cm multiplied by 7.5cm, the adhesion length is fixed to 0.5cm, and a sample is dried and then measured by using an electronic universal tester.
And (3) water resistance measurement: the glue is uniformly coated on a label, the label is stuck on a glass bottle which is cleaned in advance and flattened, the glass bottle stuck with the label is placed in an environment with the relative humidity lower than 65% for 24 hours at room temperature, then the glass bottle is vertically placed in water with the temperature lower than 20 ℃ (so as to increase the degree of distinction of label falling), and the glass bottle is rotated once every 2 hours to see whether the phenomena of edge warping and falling exist.
High-speed die cutting performance test: the adhesive is coated with labels through a flexible machine, then the labels are covered and die-cut through a 320-type circular-pressing high-speed precise die-cutting machine, the discharged waste paper is observed to be disconnected, and the die-cutting length per minute is recorded during marking.
Example 1
The peanut meal-based protein adhesive is prepared from the following raw materials in parts by weight:
30 parts of peanut meal, 0.5 part of trypsin, 0.4 part of cellulase, 0.6 part of sodium dodecyl sulfate, 4 parts of ammonium zirconium carbonate, 8 parts of water-based epoxy resin, 2 parts of lithium bentonite, 1 part of nano silicon carbide and 120 parts of water.
The preparation method comprises the following steps:
s1, crushing peanut meal, sieving with a 200-mesh sieve, adding the sieved peanut meal into water, heating to 35 ℃, stirring, adding cellulase for enzymolysis for 0.5h, stirring, adding trypsin for continuous enzymolysis for 0.5h to obtain a solution I; the stirring speed is 60 rpm;
s2, adding sodium dodecyl sulfate into the solution I, heating to 75 ℃, stirring at the speed of 100rpm, and keeping for 1h to obtain a solution II;
s3, cooling the solution II to 30 ℃, stirring (stirring speed 80rpm), adding ammonium zirconium carbonate and water-based epoxy resin as a cross-linking agent, and reacting for 0.5h at 30 ℃ to obtain a solution III;
s4, adding lithium bentonite and nano silicon carbide into the solution III, stirring at the room temperature of 80rpm for 5min, and uniformly stirring to obtain the peanut meal-based protein adhesive.
Initial tack (rolling ball method): 28; the permanent adhesive force is 142 h; viscosity 2884 cps; the tensile resistance is 212.41N; the water resistance is 162 h; the high-speed die cutting property is 108 m/min; the storage stability was 48 h.
Example 2
The peanut meal-based protein adhesive is prepared from the following raw materials in parts by weight:
30 parts of peanut meal, 0.5 part of trypsin, 0.4 part of cellulase, 0.6 part of sodium dodecyl sulfate, 4 parts of ammonium zirconium carbonate, 8 parts of water-based epoxy resin, 2 parts of lithium bentonite, 1 part of nano silicon carbide and 120 parts of water.
The preparation method comprises the following steps:
s1, crushing peanut meal, sieving with a 150-mesh sieve, adding the sieved peanut meal into water, heating to 35 ℃, stirring, adding cellulase for enzymolysis for 0.5h, stirring, adding trypsin for continuous enzymolysis for 0.5h to obtain a solution I; the stirring speed is 60 rpm;
s2, adding sodium dodecyl sulfate into the solution I, heating to 75 ℃, stirring at the speed of 100rpm, and keeping for 1h to obtain a solution II;
s3, cooling the solution II to 30 ℃, stirring (stirring speed 80rpm), adding ammonium zirconium carbonate and water-based epoxy resin as a cross-linking agent, and reacting for 0.5h at 30 ℃ to obtain a solution III;
s4, adding lithium bentonite and nano silicon carbide into the solution III, stirring at the room temperature of 80rpm for 5min, and uniformly stirring to obtain the peanut meal-based protein adhesive.
Example 3
The peanut meal-based protein adhesive is prepared from the following raw materials in parts by weight:
25 parts of peanut meal, 0.6 part of trypsin, 0.3 part of cellulase, 1 part of sodium dodecyl sulfate, 3 parts of ammonium zirconium carbonate, 6 parts of water-based epoxy resin, 3 parts of lithium bentonite, 0.5 part of nano silicon carbide and 110 parts of water.
The preparation method comprises the following steps:
s1, crushing peanut meal, sieving with a 200-mesh sieve, adding the sieved peanut meal into water, heating to 35 ℃, stirring, adding cellulase for enzymolysis for 0.5h, stirring, adding trypsin for continuous enzymolysis for 0.5h to obtain a solution I; the stirring speed is 60 rpm;
s2, adding sodium dodecyl sulfate into the solution I, heating to 75 ℃, stirring at the speed of 100rpm, and keeping for 1h to obtain a solution II;
s3, cooling the solution II to 30 ℃, stirring (stirring speed 80rpm), adding ammonium zirconium carbonate and water-based epoxy resin as a cross-linking agent, and reacting for 0.5h at 30 ℃ to obtain a solution III;
s4, adding lithium bentonite and nano silicon carbide into the solution III, stirring at the room temperature of 80rpm for 5min, and uniformly stirring to obtain the peanut meal-based protein adhesive.
Experimental example 1
The peanut meal-based protein adhesive is prepared from the following raw materials in parts by weight:
30 parts of peanut meal, 0.5 part of trypsin, 0.4 part of cellulase, 0.6 part of sodium dodecyl sulfate, 4 parts of ammonium zirconium carbonate, 8 parts of water-based epoxy resin, 2 parts of lithium bentonite, 1 part of nano silicon carbide and 120 parts of water.
The preparation method comprises the following steps:
s1, crushing peanut meal, sieving with a 200-mesh sieve, adding the sieved peanut meal into water, heating to 35 ℃, stirring, adding trypsin for enzymolysis for 0.5h, stirring, adding cellulase, and continuing enzymolysis for 0.5h to obtain a solution I; the stirring speed is 60 rpm;
s2, adding sodium dodecyl sulfate into the solution I, heating to 75 ℃, stirring at the speed of 100rpm, and keeping for 1h to obtain a solution II;
s3, cooling the solution II to 30 ℃, stirring (stirring speed 80rpm), adding ammonium zirconium carbonate and water-based epoxy resin as a cross-linking agent, and reacting for 0.5h at 30 ℃ to obtain a solution III;
s4, adding lithium bentonite and nano silicon carbide into the solution III, stirring at the room temperature of 80rpm for 5min, and uniformly stirring to obtain the peanut meal-based protein adhesive.
Initial tack (rolling ball method): 24; the permanent adhesive force is 130 h; viscosity 2712 cps; the tensile resistance is 200.12N; the water resistance is 150 h; the high-speed die cutting property is 78 m/min; the storage stability was 39 h.
Experimental example 2
The peanut meal-based protein adhesive is prepared from the following raw materials in parts by weight:
30 parts of peanut meal, 0.5 part of trypsin, 0.4 part of cellulase, 0.6 part of sodium dodecyl sulfate, 4 parts of ammonium zirconium carbonate, 8 parts of water-based epoxy resin, 2 parts of lithium bentonite, 1 part of nano silicon carbide and 120 parts of water.
The preparation method comprises the following steps:
s1, crushing peanut meal, sieving with a 200-mesh sieve, adding the sieved peanut meal into water, heating to 35 ℃, stirring, adding trypsin and cellulase, and performing enzymolysis for 1h to obtain a solution I; the stirring speed is 60 rpm;
s2, adding sodium dodecyl sulfate into the solution I, heating to 75 ℃, stirring at the speed of 100rpm, and keeping for 1h to obtain a solution II;
s3, cooling the solution II to 30 ℃, stirring (stirring speed 80rpm), adding ammonium zirconium carbonate and water-based epoxy resin as a cross-linking agent, and reacting for 0.5h at 30 ℃ to obtain a solution III;
s4, adding lithium bentonite and nano silicon carbide into the solution III, stirring at the room temperature of 80rpm for 5min, and uniformly stirring to obtain the peanut meal-based protein adhesive.
Initial tack (rolling ball method): 20; the permanent adhesion is 132 h; viscosity 2712 cps; the tensile resistance is 189.32N; the water resistance is 132 h; the high-speed die cutting property is 54 m/min; the storage stability was 42 h.
Experimental example 3
The peanut meal-based protein adhesive is prepared from the following raw materials in parts by weight:
30 parts of peanut meal, 0.5 part of trypsin, 0.4 part of cellulase, 0.6 part of sodium dodecyl sulfate, 4 parts of ammonium zirconium carbonate, 8 parts of water-based epoxy resin, 2 parts of diatomite, 1 part of nano silicon carbide and 120 parts of water.
The preparation method comprises the following steps:
s1, crushing peanut meal, sieving with a 200-mesh sieve, adding the sieved peanut meal into water, heating to 35 ℃, stirring, adding cellulase for enzymolysis for 0.5h, stirring, adding trypsin for continuous enzymolysis for 0.5h to obtain a solution I; the stirring speed is 60 rpm;
s2, adding sodium dodecyl sulfate into the solution I, heating to 75 ℃, stirring at the speed of 100rpm, and keeping for 1h to obtain a solution II;
s3, cooling the solution II to 30 ℃, stirring (stirring speed 80rpm), adding ammonium zirconium carbonate and water-based epoxy resin as a cross-linking agent, and reacting for 0.5h at 30 ℃ to obtain a solution III;
and S4, adding diatomite and nano silicon carbide into the solution III, stirring at the room temperature of 80rpm, maintaining for 5min, and uniformly stirring to obtain the peanut meal-based protein adhesive.
Initial tack (rolling ball method): 24; the permanent adhesion is 132 h; viscosity of 2583 cps; the tensile resistance is 202.52N; the water resistance is 134 h; the high-speed die cutting property is 82 m/min; the storage stability was 31 h.
It should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the examples given, those skilled in the art can modify the technical solution of the present invention as needed or equivalent substitutions without departing from the spirit and scope of the technical solution of the present invention.
Claims (9)
1. The peanut meal-based protein adhesive is characterized by being prepared from the following raw materials in parts by weight:
20-40 parts of peanut meal, 0.2-1 part of trypsin, 0.1-0.5 part of cellulase, 0.5-2 parts of sodium dodecyl sulfate, 3-5 parts of ammonium zirconium carbonate, 5-10 parts of water-based epoxy resin, 1-3 parts of lithium bentonite, 0-2 parts of nano silicon carbide and 70-140 parts of water;
the preparation method of the peanut meal-based protein adhesive comprises the following steps:
s1, crushing and sieving peanut meal, adding the sieved peanut meal into water, heating to 30-40 ℃, stirring, adding cellulase for enzymolysis for 0.4-1 h, stirring, adding trypsin for continuous enzymolysis for 0.5-1 h to obtain a solution I;
the number of the crushed peanut meal and the sieve meshes is 150-200;
the stirring speed is controlled to be 50-100 rpm;
s2, adding sodium dodecyl sulfate into the solution I, and reacting at a high temperature to obtain a solution II;
controlling the temperature rise reaction temperature to be 70-80 ℃, and keeping for 0.5-1 h;
s3, cooling the solution II to 30-35 ℃, stirring, adding ammonium zirconium carbonate and water-based epoxy resin as a cross-linking agent, and reacting to obtain a solution III;
and S4, adding lithium bentonite and nano silicon carbide into the solution III, and uniformly stirring at room temperature to obtain the peanut meal-based protein adhesive.
2. The peanut meal-based protein adhesive as claimed in claim 1, which is prepared from the following raw materials in parts by weight: 30 parts of peanut meal, 0.5 part of trypsin, 0.4 part of cellulase, 0.6 part of sodium dodecyl sulfate, 4 parts of ammonium zirconium carbonate, 8 parts of water-based epoxy resin, 2 parts of lithium bentonite, 1 part of nano silicon carbide and 120 parts of water.
3. The peanut meal-based protein adhesive according to claim 1, wherein the ground peanut meal has a mesh size of 200 meshes; the temperature was raised to 35 ℃.
4. The peanut meal-based protein adhesive according to claim 1, wherein the temperature is controlled to be 75 ℃ and maintained for 1 hour.
5. The peanut meal-based protein adhesive according to claim 1, wherein in the step S2, the stirring speed is 80-120 rpm.
6. The peanut meal-based protein adhesive as claimed in claim 1, wherein in the step S3, the reaction temperature is controlled to be 30-35 ℃, and the reaction time is controlled to be 0.4-1.2 h; the stirring speed is controlled to be 60-100 rpm.
7. The peanut meal-based protein adhesive according to claim 6, wherein in the step S3, the reaction temperature is controlled to be 30 ℃, and the reaction time is controlled to be 1 h.
8. The peanut meal-based protein adhesive according to claim 1, wherein in the step S4, the stirring speed is controlled to be 50-100 rpm, and the stirring time is 5-10 min.
9. Use of the peanut meal-based protein adhesive of any one of claims 1-8 as a label adhesive.
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| CN111548767B (en) * | 2020-05-25 | 2021-08-06 | 厦门诺维特环保科技有限公司 | Aldehyde-free peanut protein-based adhesive and preparation method thereof |
| CN111793464B (en) * | 2020-07-14 | 2021-12-07 | 南宁雄晋生物科技有限公司 | Method for producing soybean-based protein glue by enzyme method modified soybean meal and application thereof |
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| NZ522071A (en) * | 2002-10-18 | 2005-07-29 | Patrick Joseph Silcock | Hydrolysed casein phosphoprotein preparations for bioactive metal ion delivery and teeth remineralisation |
| CN102977844B (en) * | 2012-11-22 | 2015-03-25 | 北京林业大学 | Modified vegetable protein adhesive and preparation method thereof |
| CN104610909B (en) * | 2015-02-26 | 2017-04-12 | 许丽萍 | Aldehyde-free vegetable protein-based wood adhesive as well as preparation and application methods thereof |
| CN104629678B (en) * | 2015-03-10 | 2016-08-17 | 茌平县廷森木业有限公司 | Timber by water-fast bio-based without aldehyde adhesive and preparation method |
| CN106811172A (en) * | 2017-01-22 | 2017-06-09 | 潘佳雨 | A kind of preparation method of water-resistant soybean base environment-friendly adhesive |
| CN106883816A (en) * | 2017-03-22 | 2017-06-23 | 瑞安市智造科技有限公司 | Moulded coal adhesive with skimmed soybean protein as raw material and preparation method thereof |
| CN109517576B (en) * | 2018-11-23 | 2022-01-28 | 北京林业大学 | Aldehyde-free protein adhesive and preparation method thereof |
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