CN111205817A - Non-aldolase modified sugar-soybean-based composite wood adhesive and preparation method thereof - Google Patents
Non-aldolase modified sugar-soybean-based composite wood adhesive and preparation method thereof Download PDFInfo
- Publication number
- CN111205817A CN111205817A CN202010019195.XA CN202010019195A CN111205817A CN 111205817 A CN111205817 A CN 111205817A CN 202010019195 A CN202010019195 A CN 202010019195A CN 111205817 A CN111205817 A CN 111205817A
- Authority
- CN
- China
- Prior art keywords
- protein
- soybean
- adhesive
- glucosamine
- modified sugar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
-
- 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
-
- 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
- C09J11/06—Non-macromolecular additives organic
-
- 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
- C09J11/08—Macromolecular additives
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention belongs to the technical field of wood adhesives, and particularly relates to an aldehyde-free enzyme modified sugar-soybean-based composite wood adhesive and a preparation method thereof. The preparation method comprises the following steps: dissolving soybean protein or protein mixture mainly containing soybean protein in water, adding glucosamine, adjusting pH to 7-11 with alkali hydroxide, and stirring at 50 deg.C for 2 hr to obtain soybean protein solution; adding urea and protease, and stirring at 37 deg.C overnight; and (4) homogenizing under high pressure to obtain the wood adhesive. The formula of the modified sugar-soybean-based wood adhesive only contains protein, glucosamine, urea and low-concentration weak base, so that the problem of formaldehyde release is solved from the source; the protease crosslinks the soybean protein molecules, so that the water resistance of the adhesive is improved, the contact area of adhesive macromolecules and a plate is increased by urea, the adhesive binding force of the adhesive is increased by glucosamine, and the adhesive is endowed with higher adhesive binding force and water resistance.
Description
Technical Field
The invention belongs to the technical field of wood adhesives, and particularly relates to an aldehyde-free enzyme modified sugar-soybean-based composite wood adhesive and a preparation method thereof.
Background
Along with the shortage of wood resources, more and more artificial board furniture is used for replacing solid wood furniture, so that the using amount of the adhesive is increased day by day. The natural adhesive has the advantages of poor water resistance, low solid content, low bonding strength, easy mildew and short storage period, and is gradually replaced by the 'three-aldehyde adhesive' which has the advantages of high bonding strength, short curing time, high concentration, low viscosity, easy mixing with water, simple process and convenient operation. However, wood products prepared by the application of the trialdehyde glue release formaldehyde gas, and the harm to human bodies is very great. In 2017, 10 and 27, in a carcinogen list published by the international cancer research institution of the world health organization, formaldehyde is put in a carcinogen list. Formaldehyde is a big killer for human health, the release period of formaldehyde is as long as 5-15 years, and strict formaldehyde release limits in indoor air and wood products are established in many countries, so that the wood industry faces severe challenges in the face of increasingly strict environmental standards.
In recent years, with the increase of international market competition pressure, the environmental protection grade of the artificial boards is continuously improved, and the environmental protection consciousness of global citizens to home life is continuously enhanced, and a plurality of domestic artificial board manufacturers are concerned with the development and popularization of environmental protection products and occupy certain market positions. Although many synthetic resins with low trace formaldehyde emission are being developed, many complex problems arise during the research process. In addition, as the energy crisis of all countries in the world continuously appears, the price of the synthetic resin is continuously increased, the research cost is higher, the product competition is weak, and the manufacturers are difficult to break through the bottleneck of export. Therefore, under various pressures in the present society, wood adhesives modified or modified with renewable materials, particularly with grain-based seed proteins, have become a research hotspot of researchers. There are patents (200710164080.4, 201910064132.3, 201910147935.5, 201910336245.5) which disclose adhesives based on soy as a material and use propylene oxide, ethylene triamine, glutaraldehyde, polyisocyanate, etc. as a crosslinking agent for soy protein to increase adhesive strength, but these adhesives are carcinogenic, toxic, flammable, or irritating to eyes and skin, which is contrary to the needs and environmental protection concept. Therefore, it is a trend to find adhesives using biomass as a crosslinking agent or an auxiliary material for increasing adhesive strength and using vegetable protein as a main material.
Disclosure of Invention
Aiming at the problems that the existing adhesive has large formaldehyde release amount, is harmful to human health, has high manufacturing cost, poor process applicability, no competitive power of products, strong harmfulness of a soybean protein cross-linking agent and the like, the invention provides the carbohydrase-free modified sugar-soybean-based composite wood adhesive and the preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
an aldehyde-free enzyme modified sugar-soybean-based composite wood adhesive comprises the following components in percentage by mass: 9-12% of soybean protein, 0.3-1.5% of alkaline hydroxide, 0.001-0.005% of protease, 3-12% of urea, 0.4-1.5% of glucosamine and the balance of water.
Further, the soy protein is soy protein or a protein mixture; the protein mixture is composed of soybean protein and one of whey protein, broomcorn millet gluten protein, peanut protein, zein and cassava crude protein in a mass ratio of 10-20: 1;
the alkaline hydroxide is IA group alkali metal hydroxide or IIA alkaline earth metal hydroxide;
the protease is protein cross-linking enzyme or direct cross-linking enzyme.
The glucosamine is glucosamine sulfate and glucosamine hydrochloride.
Still further, the raw material of the soybean protein is soybean protein isolate; the alkaline hydroxide is sodium hydroxide or potassium hydroxide or calcium hydroxide; the protease is tyrosinase, laccase, peroxidase or transglutaminase.
A preparation method of a non-aldolase modified sugar-soybean-based composite wood adhesive comprises the following steps of respectively taking soybean protein, glucosamine and water according to the mass percentages of 9-12% of the soybean protein, 0.3-1.5% of alkaline hydroxide, 0.001-0.005% of protease, 3-12% of urea, 0.4-1.5% of glucosamine and the balance of water, dissolving the soybean protein and the glucosamine in the water, taking the alkaline hydroxide to adjust the pH value of the solution to be 7-11, stirring for 2 hours at 50 ℃ to form a soybean protein solution, adding the urea to dissolve for 10 minutes, adding the protease, stirring overnight at 37 ℃, and homogenizing under high pressure to obtain the non-aldolase modified sugar-soybean-based composite wood adhesive;
or dissolving the soy protein and the glucosamine in water, taking the alkaline hydroxide to adjust the pH value of the solution to 7-8, stirring for 2 hours at 50 ℃ to form a soy protein solution, then adding the protease, stirring overnight at 37 ℃, adding the urea to dissolve for 10 minutes, then continuously adding the alkaline hydroxide to adjust the pH value to 8-11, and homogenizing under high pressure to obtain the non-aldose modified sugar-soy-based composite wood adhesive.
Further, the pressure of the high-pressure homogenization is as follows: the low pressure is 25MPa, the volume is 100mL, and the temperature is 4 ℃.
Compared with the prior art, the invention has the following advantages:
1. the non-aldolase modified sugar-soybean-based composite wood adhesive is composed of soybean protein, alkaline hydroxide, protease, urea, glucosamine and water. Avoids the formaldehyde hazard of the prior three-aldehyde wood adhesive and solves the problem of formaldehyde release from the source.
2. The vegetable protein in the non-aldose modified sugar-soybean-based composite wood adhesive is a main by-product in the downstream of the large-scale agricultural product processing industry, and belongs to renewable resources. Large and rich, no region limitation, wide source and controllable cost.
3. The non-aldose modified sugar-soybean-based composite wood adhesive avoids the formaldehyde hazard of the existing trialdehyde wood adhesive, and overcomes the defects of poor water resistance and low bonding strength of the existing protein-based wood adhesive. The urea or the derivative thereof has oxygen atoms and hydrogen atoms and can act with hydroxyl groups of protein, so that high molecular weight protein molecules after enzyme crosslinking are unfolded, the contact area of the unfolded protein molecules and wood is increased, the adhesive force is enhanced, glucosamine is introduced into the adhesive, the content of the hydroxyl groups is further increased, and the adhesive shows better shear strength and water resistance.
4. The formula of the invention has the advantages of environmental protection and no pollution, the main material of the non-aldose modified sugar-soybean-based composite wood adhesive is renewable resources, the preparation process is simple, the problem of exhaustion of petrochemical raw materials used in plywood is solved, the principles of environment protection and sustainable development are met, the prepared adhesive has strong adhesive force, and the application prospect is very good.
Detailed Description
Example 1
The invention relates to an aldehyde-free enzyme modified sugar-soybean-based composite wood adhesive, which comprises the following components in percentage by mass, and each 100 g of the adhesive comprises: 9% of soybean protein isolate, 0.3% of sodium hydroxide, 0.001% of tyrosinase, 3% of urea, 0.4% of glucosamine sulfate and the balance of water.
The invention relates to a preparation method of an aldehyde-free enzyme modified sugar-soybean-based composite wood adhesive, which comprises the steps of respectively taking soybean protein isolate, glucosamine sulfate and water, dissolving the soybean protein isolate and the glucosamine sulfate in the water, adjusting the pH value of the solution to 7 by taking sodium hydroxide, stirring for 2 hours at 50 ℃ to form a plant protein solution, adding urea for dissolving for 10 minutes, adding tyrosinase, stirring for 3 hours at 37 ℃, and homogenizing under the conditions of 25MPa (3626psi) of pressure, 100mL of volume and 4 ℃ of temperature to obtain the wood adhesive.
Example 2
The invention relates to an aldehyde-free enzyme modified sugar-soybean-based composite wood adhesive, which comprises the following components in percentage by mass, and each 100 g of the adhesive comprises: 10% of soybean protein isolate, 0.6% of potassium hydroxide, 0.004% of laccase, 5% of urea, 1.1% of glucosamine hydrochloride and the balance of water.
The invention relates to a preparation method of an aldehyde-free enzyme modified sugar-soybean-based composite wood adhesive, which comprises the steps of respectively taking soybean protein isolate, glucosamine hydrochloride and water, dissolving the soybean protein isolate and the glucosamine hydrochloride in the water, taking potassium hydroxide to adjust the pH value of the solution to be 8, stirring for 2 hours at 50 ℃ to form a soybean protein solution, then adding laccase, stirring overnight at 37 ℃, adding urea to dissolve for 10 minutes, then continuously adding potassium hydroxide to adjust the pH value to 11, and homogenizing under the conditions of pressure of 25MPa (3626psi), volume of 100mL and temperature of 4 ℃ under high pressure to obtain the wood adhesive.
Example 3
The invention relates to an aldehyde-free enzyme modified sugar-soybean-based composite wood adhesive, which comprises the following components in percentage by mass, and each 100 g of the adhesive comprises: 12% of soybean protein isolate and husked millet gluten protein, 0.9% of calcium hydroxide, 0.005% of peroxidase, 12% of urea, 1.5% of glucosamine sulfate and the balance of water, wherein the mass ratio of the mixture is 20: 1.
The invention relates to a preparation method of an aldehyde-free enzyme modified sugar-soybean-based composite wood adhesive, which comprises the steps of respectively taking soybean protein, husked millet gluten, glucosamine sulfate and water, dissolving a mixture of 12% of soybean protein isolate and husked millet gluten in a mass ratio of 20:1 and the glucosamine sulfate in the water, taking calcium hydroxide to adjust the pH value of the solution to be 8, stirring for 2 hours at 50 ℃ to form a soybean protein solution, adding peroxidase, standing overnight at 4 ℃, adding urea to dissolve for 10 minutes, continuously adding the calcium hydroxide to adjust the pH value to be 11, and homogenizing under the conditions of pressure of 25MPa (3626psi), volume of 100mL and temperature of 4 ℃ under high pressure to obtain the wood adhesive.
Example 4
The invention relates to an aldehyde-free enzyme modified sugar-soybean-based composite wood adhesive, which comprises the following components in percentage by mass, and each 100 g of the adhesive comprises: 9% of soybean protein isolate and whey protein in a mass ratio of 10:1, 0.7% of calcium hydroxide, 0.001% of transglutaminase, 4% of urea, 0.4% of glucosamine hydrochloride, and the balance of water.
The invention relates to a preparation method of an aldehyde-free enzyme modified sugar-soybean-based composite wood adhesive, which comprises the steps of respectively taking a mixture formed by soybean protein isolate and whey protein, glucosamine hydrochloride and water, dissolving the mixture formed by the soybean protein isolate and the whey protein and the glucosamine hydrochloride in the water, adjusting the pH value of a solution to 9 by taking calcium hydroxide, stirring for 2 hours at 50 ℃ to form a plant protein solution, adding urea for dissolving for 10 minutes, then adding transglutaminase, stirring for 3 hours at 37 ℃, and homogenizing under the conditions of 25MPa (3626psi), 100mL in volume and 4 ℃ under high pressure to obtain the wood adhesive.
Example 5
The invention relates to an aldehyde-free enzyme modified sugar-soybean-based composite wood adhesive, which comprises the following components in percentage by mass, and each 100 g of the adhesive comprises: the composition comprises a mixture of 11% of soybean protein isolate and broomcorn millet gluten protein in a mass ratio of 15:1, 0.8% of potassium hydroxide, 0.002% of laccase, 6% of urea, 0.8% of glucosamine sulfate and the balance of water.
The invention relates to a preparation method of an aldehyde-free enzyme modified sugar-soybean-based composite wood adhesive, which comprises the steps of respectively taking a mixture of soybean protein isolate and husked millet gluten, glucosamine sulfate and water, dissolving the mixture of the soybean protein isolate and the husked millet gluten and the glucosamine sulfate in the water, taking potassium hydroxide to adjust the pH value of the solution to be 7, stirring for 2 hours at 50 ℃ to form a plant protein solution, adding laccase, standing overnight at 4 ℃, adding urea to dissolve for 10 minutes, continuously adding potassium hydroxide to adjust the pH value to be 10, and homogenizing under the conditions of 25MPa (3626psi), 100mL of volume and 4 ℃ under high pressure to obtain the wood adhesive.
Example 6
The invention relates to an aldehyde-free enzyme modified sugar-soybean-based composite wood adhesive, which comprises the following components in percentage by mass, and each 100 g of the adhesive comprises: 12 percent of soybean protein isolate and zein, 0.9 percent of calcium hydroxide, 0.005 percent of peroxidase, 9 percent of urea, 1.5 percent of glucosamine hydrochloride and the balance of water, wherein the mass ratio of the soybean protein isolate to the zein is 20: 1.
The invention relates to a preparation method of an aldehyde-free enzyme modified sugar-soybean-based composite wood adhesive, which comprises the steps of respectively taking a mixture consisting of soybean protein isolate and zein, glucosamine hydrochloride and water, dissolving the mixture consisting of the soybean protein isolate and the zein and the glucosamine hydrochloride in the water, adjusting the pH value of a solution to be 8 by taking calcium hydroxide, stirring for 2 hours at 50 ℃ to form a plant protein solution, adding peroxidase, stirring for 3 hours at 37 ℃, adding urea for dissolving for 10 minutes, then adding the calcium hydroxide to adjust the pH value to be 11, and homogenizing under the conditions of pressure of 25MPa (3626psi), volume of 100mL and temperature of 4 ℃ under high pressure to obtain the wood adhesive.
Comparative example 1
8 g of soy protein isolate is dissolved in 96 g of water and stirred for 2h at 50 ℃ until the protein is completely and evenly distributed in the water, and the solution is directly used as a viscose for the bonding of wood.
Comparative example 2
8 g of soy protein isolate is dissolved in 96 g of water, stirred for 2h at 50 ℃ until the protein is completely and uniformly distributed in the water, and sodium hydroxide (0.05 g) is taken to adjust the pH value of the solution to 7, and the solution is directly used as a viscose for bonding wood.
Comparative examples 1-2 are soy-based mucilages prepared using conventional methods.
Comparative example 3
The urea-formaldehyde resin adhesive commonly used in the manufacture of artificial boards is adopted.
Comparative example 4
The melamine resin adhesive commonly used in the manufacture of artificial boards is adopted.
Adhesive performance evaluation test:
a basswood plate is sawed according to GB/T9846.7-2004;
size of the sample: 100mm × 25 mm; the sizing area is 25mm multiplied by 25 mm;
the thickness of the single plate is 1.5mm, and the water content is 81.2%; the glue coating amount is 480g/m2；
The hot pressing process conditions are as follows: the pressure is 1.0-1.2 MPa, the temperature is 140-150 ℃, and the time is 10 min.
The bonding strength is measured by bonding, solidifying and cooling the basswood board to room temperature, immersing the basswood board in warm water (60 +/-3 ℃) for 3 hours, cooling the basswood board for 10 minutes at the room temperature, and averaging 5 samples in each group. The test results are shown in table 1 below:
plywood bonding strength test: the bonding strength is an important index for evaluating the bonding strength of the adhesive, and the bonding strength of the adhesive is better when the numerical value of the test result is larger, wherein the test result is an average value according to the national standard GB/T14074-2017 of the people's republic of China.
Testing the impregnation stripping performance of the plywood: the dipping and peeling performance is an important index for evaluating the water resistance of the adhesive, the measurement method is based on the national standard GB/T17657-2013 of the people's republic of China, the test result is a mean value, and the smaller the numerical value of the test result is, the better the water resistance of the adhesive is.
Testing the content of free formaldehyde: according to the detection of the national standard GB/T14074-.
Table 1 performance quality index table of adhesive
| Detecting items | Bonding strength/MPa | Rate of exfoliation by dipping | Free formaldehyde |
| Example 1 | 1.59 | 0 | 0 |
| Example 2 | 1.65 | 0 | 0 |
| Example 3 | 1.35 | 0 | 0 |
| Example 4 | 2.30 | 0 | 0 |
| Example 5 | 2.20 | 0 | 0 |
| Example 6 | 1.65 | 0 | 0 |
| Comparative example 1 | 0.65 | 40％ | 0 |
| Comparative example 2 | 0.96 | 30％ | 0 |
| Comparative example 3 | 0.87 | 30％ | 5.8 |
| Comparative example 4 | 1.05 | 20％ | 0.56 |
Experimental results show that after the bean pulp-based adhesive is subjected to enzyme modification, urea modification and glucosamine modification, the bonding strength of the prepared plywood is obviously higher than that of the bean pulp adhesive before modification, the bonding strength is more than 1.00MPa according to the detection of a II-type plywood, some of the bonding strength reaches 2.30MPa, the standard requirement of the plywood is met, and the reinforcing effect is obvious. Meanwhile, the formaldehyde emission of the modified adhesive is 0, and the modified adhesive is high in water resistance.
The embodiments are described in detail, but the present invention is not limited to the above embodiments and examples, and various changes and modifications within the knowledge of those skilled in the art may be made without departing from the spirit of the present invention, and the changes and modifications fall within the scope of the present invention.
Claims (5)
1. An aldehyde enzyme-free modified sugar-soybean-based composite wood adhesive is characterized in that: comprises the following components in percentage by mass: 9-12% of soybean protein, 0.3-1.5% of alkaline hydroxide, 0.001-0.005% of protease, 3-12% of urea, 0.4-1.5% of glucosamine and the balance of water.
2. The non-aldose modified sugar-soy based composite wood adhesive according to claim 1, wherein the adhesive comprises: the soy protein is soy protein or a protein mixture; the protein mixture is composed of soybean protein and one of whey protein, broomcorn millet gluten protein, peanut protein, zein and cassava crude protein in a mass ratio of 10-20: 1;
the alkaline hydroxide is IA group alkali metal hydroxide or IIA alkaline earth metal hydroxide;
the protease is protein cross-linking enzyme or direct cross-linking enzyme.
The glucosamine is glucosamine sulfate and glucosamine hydrochloride.
3. The non-aldose modified sugar-soy based composite wood adhesive according to claim 2, wherein the adhesive comprises: the raw material of the soybean protein is soybean protein isolate; the alkaline hydroxide is sodium hydroxide or potassium hydroxide or calcium hydroxide; the protease is tyrosinase, laccase, peroxidase or transglutaminase.
4. A preparation method of non-aldolase modified sugar-soybean-based composite wood adhesive is characterized by comprising the following steps: taking the soybean protein, the glucosamine and the water according to the mass percentage in the claim 1, respectively, dissolving the soybean protein and the glucosamine in the water, taking the alkaline hydroxide to adjust the pH value of the solution to 7-11, stirring the solution at 50 ℃ for 2h to form a soybean protein solution, adding the urea to dissolve the solution for 10min, adding the protease, stirring the solution at 37 ℃ overnight, and homogenizing the solution under high pressure to obtain the non-aldose modified sugar-soybean-based composite wood adhesive;
or dissolving the soy protein and the glucosamine in water, taking the alkaline hydroxide to adjust the pH value of the solution to 7-8, stirring for 2 hours at 50 ℃ to form a soy protein solution, then adding the protease, stirring overnight at 37 ℃, adding the urea to dissolve for 10 minutes, then continuously adding the alkaline hydroxide to adjust the pH value to 8-11, and homogenizing under high pressure to obtain the non-aldose modified sugar-soy-based composite wood adhesive.
5. The preparation method of the non-aldose modified sugar-soybean-based composite wood adhesive according to claim 4, wherein the preparation method comprises the following steps: the pressure of the high-pressure homogenization is as follows: the low pressure is 25MPa, the volume is 100mL, and the temperature is 4 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010019195.XA CN111205817A (en) | 2020-01-08 | 2020-01-08 | Non-aldolase modified sugar-soybean-based composite wood adhesive and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010019195.XA CN111205817A (en) | 2020-01-08 | 2020-01-08 | Non-aldolase modified sugar-soybean-based composite wood adhesive and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111205817A true CN111205817A (en) | 2020-05-29 |
Family
ID=70785030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010019195.XA Withdrawn CN111205817A (en) | 2020-01-08 | 2020-01-08 | Non-aldolase modified sugar-soybean-based composite wood adhesive and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111205817A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115637123A (en) * | 2022-10-25 | 2023-01-24 | 西南林业大学 | Highly branched glucose-based water-resistant adhesive and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101384284A (en) * | 2006-02-09 | 2009-03-11 | 史塞克创伤有限责任公司 | Adhesive for medical applications and means for haemostasis |
| CN101412898A (en) * | 2007-10-18 | 2009-04-22 | 朱锦 | Novel non-formaldehyde wood adhesive and preparation thereof |
| CN105969303A (en) * | 2016-05-31 | 2016-09-28 | 北京林业大学 | Soybean-meal-based wood adhesive and preparing method thereof |
| CN106433557A (en) * | 2016-11-02 | 2017-02-22 | 常州市鼎日环保科技有限公司 | Preparation method of composite wood adhesive |
-
2020
- 2020-01-08 CN CN202010019195.XA patent/CN111205817A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101384284A (en) * | 2006-02-09 | 2009-03-11 | 史塞克创伤有限责任公司 | Adhesive for medical applications and means for haemostasis |
| CN101412898A (en) * | 2007-10-18 | 2009-04-22 | 朱锦 | Novel non-formaldehyde wood adhesive and preparation thereof |
| CN105969303A (en) * | 2016-05-31 | 2016-09-28 | 北京林业大学 | Soybean-meal-based wood adhesive and preparing method thereof |
| CN106433557A (en) * | 2016-11-02 | 2017-02-22 | 常州市鼎日环保科技有限公司 | Preparation method of composite wood adhesive |
Non-Patent Citations (2)
| Title |
|---|
| 姚欣彤: ""酪蛋白和大豆蛋白的脱酰胺和酶法糖基化交联修饰及产物性质"", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
| 赵佳丽: ""大豆基木材改性胶黏剂的初步研究与制备"", 《道客巴巴》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115637123A (en) * | 2022-10-25 | 2023-01-24 | 西南林业大学 | Highly branched glucose-based water-resistant adhesive and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109651782B (en) | Preparation method of composite plant fiber biodegradable material | |
| CN108641673B (en) | Preparation method of plywood without formaldehyde release | |
| CN110079270B (en) | Fiber modified soybean protein-based adhesive for artificial board and preparation method thereof | |
| CN108570305B (en) | Soybean-based protein adhesive and preparation method thereof | |
| CN107090271B (en) | Soybean protein adhesive and preparation method thereof | |
| CN103804618B (en) | A kind of preparation method of lignin-base Environmental protection phenol formaldehyde resin sizing agent | |
| CN103865477B (en) | A kind of cross-linking modified soybean albumen adhesive | |
| CN109370512B (en) | Walnut cake protein adhesive for plywood and preparation method thereof | |
| CN103484045B (en) | Adhesive with ultralow formaldehyde release amount, and preparation method of same | |
| CN111139030B (en) | Enzyme modified biomacromolecule wood adhesive and preparation method thereof | |
| CN112300756B (en) | Modified nano-cellulose reinforced soy protein adhesive and preparation method thereof | |
| CN107286905B (en) | A method of it is prepared using lignin without aldehyde lignin-base based Wood Adhesives | |
| CN111892908A (en) | Dual-modified soybean-based wood adhesive and preparation method thereof | |
| CN113563841B (en) | Modified vegetable protein adhesive and preparation method thereof | |
| CN109306638B (en) | Fiberboard and preparation method thereof | |
| CN110079269B (en) | Oil-tea-cake adhesive and preparation method and application thereof | |
| CN109679578B (en) | Tough soybean meal protein adhesive and preparation method thereof | |
| CN111205817A (en) | Non-aldolase modified sugar-soybean-based composite wood adhesive and preparation method thereof | |
| CN108531128B (en) | Aldehyde-free lignin adhesive and preparation method thereof | |
| CN111892909A (en) | Enzyme modified protein wood adhesive and preparation method thereof | |
| CN103952118B (en) | A kind of modified soy protein adhesive and preparation method thereof | |
| CN109825249B (en) | Water-resistant and corrosion-resistant soybean protein adhesive and preparation method thereof | |
| CN111117562A (en) | Enzyme modified biomass wood adhesive and preparation method thereof | |
| CN111040663B (en) | Soybean-based protein adhesive for artificial board and preparation method thereof | |
| CN111139028A (en) | Sugar-modified enzyme-modified protein wood adhesive and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200529 |
|
| WW01 | Invention patent application withdrawn after publication |