CN114806497B - Soybean-based adhesive and preparation method and application thereof - Google Patents
Soybean-based adhesive and preparation method and application thereof Download PDFInfo
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G83/00—Macromolecular compounds not provided for in groups C08G2/00 - C08G81/00
- C08G83/008—Supramolecular polymers
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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
- C09J11/08—Macromolecular additives
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses a soybean-based adhesive, a preparation method and application thereof, wherein the preparation raw materials of the soybean-based adhesive comprise: bean gum and modified Ag-MOFs materials; the modified Ag-MOFs material is modified with amino and epoxy groups. The invention provides a soybean-based adhesive, a preparation method and application thereof, and aims at the defects of the prior art, and the reaction activity with a soybean glue component is enhanced by adding a modified Ag-MOFs material, so that the bonding strength, antibacterial property and mildew resistance between the soybean-based adhesive and a bamboo wood artificial board are improved.
Description
Technical Field
The invention belongs to the technical field of adhesives, and particularly relates to a soybean-based adhesive, and a preparation method and application thereof.
Background
The traditional wood board is usually made of high-quality wood, and the ground solid wood board with certain decoration and usability is manufactured on the premise of not changing the structure of the wood, so that the utilization rate of the wood is low, the consumption is high, the growth period of the high-quality wood is long, and the problem of resource shortage is increasingly displayed. The solid wood artificial board is made by taking solid wood jointed boards or single boards as a surface layer, taking solid wood strips as a core layer and taking single boards as a bottom layer, using a large amount of fast-growing wood on raw materials, saving the use of high-quality wood, in addition, the structure of the solid wood artificial board can reduce the anisotropy of the wood, so that the board has more stability, and meanwhile, the solid wood artificial board also has the characteristics of retaining the special natural texture of the solid wood board, comfort foot feeling and the like, and is one of good substitute products of the solid wood board.
However, in comparison to solid wood boards, solid wood composite plywood, and in particular multi-layer solid wood plywood, require a certain amount of adhesive during the compounding process, the most commonly used adhesives in plywood production are "trialdehyde glue", i.e. urea formaldehyde glue (UF), phenol formaldehyde glue (PF) and melamine formaldehyde glue (MF). However, "trialdehyde glue" as an adhesive for the production of artificial boards typically releases a large amount of volatile organic compounds such as formaldehyde, phenol, and the like. The existing formaldehyde-free adhesive for the plywood mainly comprises starch-based adhesives, soybean-based adhesives and the like, but the traditional starch-based adhesives and soybean-based adhesives have the defects of low adhesive bonding strength, poor water resistance, poor mildew resistance and the like, and the problems of local adhesive opening, easy mildew growth, poor processability, low production efficiency and the like of the plywood are caused after the adhesive is applied to the plywood.
Therefore, development of a novel soybean-based adhesive, a preparation method and application thereof can solve the problems of the prior art that the formaldehyde content of the adhesive is too high, the antibacterial property, the mildew resistance and the adhesive strength are insufficient.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the prior art described above. Therefore, the invention provides the soybean-based adhesive, which improves the bonding strength, antibacterial property and mildew resistance between the traditional soybean-based adhesive and the artificial board.
According to one aspect of the present invention, there is provided a soybean-based adhesive, which is prepared from the following raw materials: bean gum and modified Ag-MOFs materials; the modified Ag-MOFs material is modified with amino and epoxy groups.
The soybean-based adhesive provided by the invention has at least the following beneficial effects:
the modified Ag-MOFs of the invention has a stable micropore structure, and is beneficial to adsorbing toxic and harmful components in the air; if the Ag-MOFs material in the components is not subjected to surface modification, the Ag-MOFs material is simply mixed with the bean gum, and the mixing effect is poor; by synchronously modifying amino groups and epoxy groups on the Ag-MOFs material, the reaction participation degree of the Ag-MOFs in the soybean gelatin is enhanced: the protein in the soybean glue, amino, carboxyl and hydroxyl in the polysaccharide participate in ring-opening copolymerization crosslinking reaction of epoxy groups to form a network structure, so that the Ag-MOFs material and the surface modified amino and epoxy groups thereof are connected with the soybean glue in a chemical bond form, thereby better playing a synergistic effect and enhancing performance stability; the ring-opening copolymerization reaction of the epoxy groups also improves the cohesiveness of the obtained soybean-based adhesive; the network structure formed by the ring-opening copolymerization reaction is compact, so that the infiltration of water is blocked to a certain extent, and the water resistance of the obtained soybean-based adhesive is improved; silver in the Ag-MOFs material has a certain antibacterial and mildew-proof effect, and the silver is uniformly and stably dispersed in the soybean-based adhesive, so that the obtained soybean-based adhesive also has a lasting antibacterial and mildew-proof effect.
In some embodiments of the present invention, the preparation raw materials of the modified Ag-MOFs material include: silver salt, primary ligand, secondary ligand, zinc source and silane coupling agent.
In some embodiments of the invention, the zinc source comprises zinc nitrate hexahydrate.
In some embodiments of the invention, the silane coupling agent is an aminosilane coupling agent and an epoxysilane coupling agent.
In some embodiments of the invention, the amino coupling agent comprises at least one of KH792 and KH 550.
In some embodiments of the invention, the epoxy silane coupling agent comprises at least one of KH560 and KBM 303.
In some preferred embodiments of the present invention, the silane coupling agent is a mixture of KH560 and KH792. In some embodiments of the invention, the mass ratio of KH560 to KH792 is 1:0.67 to 2.
The amino group on KH792 is modified on the surface of the Ag-MOFs material, wherein the KH792 is long-chain amino group, and the steric hindrance generated in the reaction process is small, so that the subsequent curing reaction of the soybean-based adhesive is facilitated, the hot pressing temperature can be further reduced, the epoxy group on KH560 is modified on the surface of the Ag-MOFs particle through synchronous reaction, in the thermosetting reaction of the soybean-based adhesive, the epoxy group is ring-opened and then participates in copolymerization crosslinking reaction with the amino group, carboxyl group and hydroxyl group in the protein and polysaccharide in the soybean-based adhesive to form a network structure, and the Ag-MOFs material and the KH792 are connected with the amino group and the epoxy group surface on the surface, so that the synergistic effect can be better exerted, the performance stability is enhanced, and the antibacterial and mildew-proof effects of the soybean-based adhesive and the water resistance of the adhesive are prolonged.
In some embodiments of the invention, the secondary ligand comprises 4, 4-bipyridine.
In some embodiments of the invention, the primary ligand comprises 2-amino terephthalic acid.
In some embodiments of the present invention, the preparation raw materials of the modified Ag-MOFs material include, in parts by weight: 4-12 parts of secondary ligand and 8-72 parts of primary ligand.
In some embodiments of the present invention, the preparation raw materials of the modified Ag-MOFs material include, in parts by weight: 8-72 parts of main ligand and 1-8 parts of zinc source.
In some embodiments of the present invention, the preparation raw materials of the modified Ag-MOFs material include, in parts by weight: 4-12 parts of secondary ligand, 8-72 parts of primary ligand and 3-10 parts of silane coupling agent.
In some embodiments of the present invention, the preparation raw materials of the modified Ag-MOFs material include, in parts by weight: 2-8 parts of silver salt, 4-12 parts of secondary ligand, 8-72 parts of main ligand, 1-8 parts of zinc source and 3-10 parts of silane coupling agent.
In some embodiments of the present invention, the soybean-based adhesive is prepared from the following raw materials in parts by weight: 10-20 parts of soybean glue and 5-15 parts of modified Ag-MOFs material.
In a second aspect, the invention provides a method for preparing a soy-based adhesive, comprising mixing the soy-based adhesive with the modified Ag-MOFs material.
In some embodiments of the present invention, the method for preparing the modified Ag-MOFs material comprises the steps of:
s1: mixing and reacting the silver salt with the main ligand, the secondary ligand and the zinc source to obtain an Ag-MOFs material;
s2: and (3) mixing and reacting the Ag-MOFs material obtained in the step (S1) with the silane coupling agent.
In some embodiments of the present invention, the preparation raw materials of the modified Ag-MOFs material include, in parts by weight: 4-12 parts of secondary ligand and 8-72 parts of primary ligand.
In some embodiments of the present invention, the preparation raw materials of the modified Ag-MOFs material include, in parts by weight: 8-72 parts of main ligand and 1-8 parts of zinc source.
In some embodiments of the present invention, the preparation raw materials of the modified Ag-MOFs material include, in parts by weight: 8-72 parts of main ligand and 3-10 parts of silane coupling agent.
In some embodiments of the present invention, the preparation raw materials of the modified Ag-MOFs material include, in parts by weight: 2-8 parts of silver salt and 8-72 parts of main ligand.
In some embodiments of the present invention, in step S1, the preparation raw materials of the mixing reaction further include: and (3) a solvent.
In some embodiments of the invention, the solvent comprises at least one of N, N-dimethylformamide and absolute ethanol.
In some embodiments of the invention, the solvent comprises the N, N-dimethylformamide and absolute ethanol.
In some embodiments of the invention, the weight ratio of the N, N-dimethylformamide and the absolute ethanol in the solvent is (0.2-0.8): 1.
in some preferred embodiments of the present invention, the weight ratio of the N, N-dimethylformamide and the absolute ethanol in the solvent is (0.2 to 0.3): 1.
in some embodiments of the present invention, in the method for preparing a modified Ag-MOFs material, the temperature of the mixing reaction in step S1 is 80 to 145 ℃.
In some preferred embodiments of the present invention, in the preparation method of the modified Ag-MOFs material, in step S1, the temperature of the mixing reaction is 115 ℃ to 125 ℃.
In some embodiments of the present invention, in the preparation method of the modified Ag-MOFs material, in step S1, the mixing reaction time is 6 to 48 hours.
In some preferred embodiments of the present invention, in step S1, the mixing reaction is performed for a time period of 11 to 13 hours.
In some preferred embodiments of the present invention, in step S1, the mixing reaction is a solvothermal reaction.
In some preferred embodiments of the present invention, in step S2, the mixing reaction includes mixing the mixture obtained in step S1 with the amino coupling agent and the epoxy coupling agent simultaneously.
In some preferred embodiments of the present invention, in step S2, the silane coupling agent is added in the form of a dispersion in the mixing reaction.
In some embodiments of the invention, the dispersant of the dispersion comprises toluene.
In some embodiments of the present invention, the mass ratio of the silane coupling agent to the dispersant in the dispersion is 0.5 to 1:1.
and S2, mixing reaction, namely grafting two organic groups of amino groups and epoxy groups of the silane coupling agent on the surface of the Ag-MOFs material, so that the curing reaction of the soybean-based adhesive in the later stage is facilitated. The amino or epoxy groups alone may result in a single group on the surface, and the subsequent grafting of two groups may result in the hydrolysis of the groups that have been subsequently grafted to cover the groups that have been previously grafted, thereby affecting the subsequent curing reaction and affecting the final glue strength properties.
In some embodiments of the present invention, in the method for preparing a modified Ag-MOFs material, the temperature of the mixing reaction is 60 to 95 ℃ in step S2.
In some preferred embodiments of the present invention, in the preparation method of the modified Ag-MOFs material, the temperature of the mixing reaction in step S2 is 75 to 85 ℃.
In some embodiments of the present invention, in the preparation method of the modified Ag-MOFs material, in step S2, the mixing reaction time is 60 to 120min.
In some preferred embodiments of the present invention, in the preparation method of the modified Ag-MOFs material, the mixing reaction time in step S2 is 60 to 70min.
In some embodiments of the present invention, in the preparation method of the modified Ag-MOFs material, step S2 further includes separating and drying the obtained precipitate after the mixing reaction.
In some embodiments of the invention, the separating comprises one of centrifuging and suction filtering.
In some embodiments of the invention, the separation is followed by a wash.
In some embodiments of the invention, the cleansed cleanser includes absolute ethanol.
In some embodiments of the invention, the drying temperature is 40-60 ℃.
In some embodiments of the invention, the drying time is 1 to 3 hours.
In some embodiments of the present invention, the preparation raw materials of the bean gum include: bean material, urea and water.
In some embodiments of the invention, the legume comprises: at least one of bean flour, bean pulp or soy protein powder.
In some embodiments of the present invention, the preparation method of the soybean paste comprises: mixing the bean material, water and urea.
In some embodiments of the invention, the time of the mixing is 30 to 40 minutes in the preparation of the soy-based adhesive.
In some embodiments of the present invention, the preparation raw materials of the soybean-based adhesive further include: triglycidyl amine.
In some embodiments of the present invention, the preparation raw materials of the soybean-based adhesive further include: and triethylamine.
In some embodiments of the present invention, the soybean-based adhesive is prepared from the following raw materials in parts by weight: 10-20 parts of soybean glue, 5-15 parts of modified Ag-MOFs material and 8-16 parts of triglycidyl amine.
In some embodiments of the present invention, the soybean-based adhesive is prepared from the following raw materials in parts by weight: 10-20 parts of soybean gum, 3-8 parts of triethylamine and 8-16 parts of triglycidyl amine.
The triglycidyl amine has higher reactivity, can quickly react with organic groups (epoxy groups and amino groups) on the surface of the Ag-MOF under a relatively low temperature condition, so that normal-temperature and low-temperature curing is realized, meanwhile, the water resistance and the bonding strength are improved, ag particles become network nodes through curing reaction in the Ag-MOF material, and the Ag particles have the properties of uniform dispersion, high fixing strength and strong water loss resistance in a cured adhesive system.
In a third aspect, the present invention provides an artificial board, wherein the preparation raw material of the artificial board comprises the soybean-based adhesive.
In some embodiments of the invention, the artificial board comprises plywood and artificial board.
In some embodiments of the invention, the plywood is made from raw materials including eucalyptus and bamboo.
The term "about" in the present invention means that the allowable error is + -2% unless otherwise specified.
Detailed Description
The conception and the technical effects produced by the present invention will be clearly and completely described in conjunction with the embodiments below to fully understand the objects, features and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention.
Example 1:
the embodiment provides a preparation method of a soybean-based adhesive, which comprises the following specific steps:
s1: preparation of Ag-MOFs: mixing N, N-dimethylformamide and absolute ethyl alcohol according to a volume ratio of 1:5, adding 3 parts of silver nitrate, 5 parts of 4, 4-bipyridine and 10 parts of 2-amino terephthalic acid, mixing 3 parts of zinc nitrate hexahydrate, fully stirring and dissolving, and transferring the solution into a high-pressure reaction kettle, wherein the reaction temperature is 120 ℃, and the reaction time is 12 hours; and after the reaction is finished, carrying out suction filtration on the obtained precipitate, and carrying out vacuum drying to obtain the Ag-MOFs material.
S2: 10 parts of KH792, 5 parts of KH560 and 20 parts of toluene are mixed and added into the step S1 to obtain the Ag-MOFs material, reflux reaction is carried out at 80 ℃ for 60min, the obtained solid is filtered, and the obtained solid is washed by absolute ethyl alcohol and dried at 50 ℃ for 2h to obtain the modified Ag-MOFs material.
S3: and (2) adding 20 parts of bean powder into 60 parts of water, uniformly dissolving, adding 0.5 part of urea, continuously stirring for 30min, and mixing with 9 parts of modified Ag-MOFs material obtained in the step (S2), 3 parts of triethylamine and 8 parts of triglycidyl to obtain the soybean-based adhesive.
KH792 CAS No.: 1760-24-3;
KH560 CAS No.: 2530-83-8.
Example 2:
s1: preparation of Ag-MOFs: mixing N, N-dimethylformamide and absolute ethyl alcohol according to a volume ratio of 1:5, adding 3 parts of silver nitrate, 5 parts of 4, 4-bipyridine and 10 parts of 2-amino terephthalic acid after uniformly mixing, fully stirring and dissolving, and transferring the solution into a high-pressure reaction kettle, wherein the reaction temperature is 120 ℃ and the reaction time is 12 hours; and after the reaction is finished, carrying out suction filtration on the obtained precipitate, and carrying out vacuum drying to obtain the Ag-MOFs material.
S2: 8 parts of KH792, 8 parts of KH560 and 20 parts of toluene are mixed and added into the step S1 to obtain the Ag-MOFs material, reflux reaction is carried out for 60min at 80 ℃, and the modified Ag-MOFs material is obtained after filtration and washing with absolute ethyl alcohol.
S3: and (2) adding 20 parts of bean powder into 60 parts of water, uniformly dissolving, adding 0.5 part of urea, continuously stirring for 30min, and mixing with 9 parts of modified Ag-MOFs material obtained in the step (S2), 3 parts of triethylamine and 8 parts of triglycidyl to obtain the soybean-based adhesive.
Example 3:
s1: preparation of Ag-MOFs: mixing N, N-dimethylformamide and absolute ethyl alcohol according to a volume ratio of 1:5, adding 3 parts of silver nitrate, 5 parts of 4, 4-bipyridine and 10 parts of 2-amino terephthalic acid after uniformly mixing, fully stirring and dissolving, and transferring the solution into a high-pressure reaction kettle, wherein the reaction temperature is 120 ℃ and the reaction time is 12 hours; and after the reaction is finished, carrying out suction filtration on the obtained precipitate, and carrying out vacuum drying to obtain the Ag-MOFs material.
S2: 10 parts of KH792, 5 parts of KH560 and 20 parts of toluene are mixed and added into the step S1 to obtain the Ag-MOFs material, reflux reaction is carried out for 60min at 80 ℃, and the modified Ag-MOFs material is obtained after filtration and washing with absolute ethyl alcohol.
S3: and (2) adding 20 parts of bean powder into 60 parts of water, uniformly dissolving, adding 0.5 part of urea, continuously stirring for 30min, and mixing with 9 parts of modified Ag-MOFs material obtained in the step (S2), 3 parts of triethylamine and 8 parts of triglycidyl to obtain the soybean-based adhesive.
Example 4:
this example provides a method for preparing a soy-based adhesive, which differs from example 3 in that KH550 is used in place of KH-792 in example 1.
Comparative example 1:
this comparative example provides a method for preparing a soybean-based adhesive, which is different from example 1 in that only KH560 is included in the silane coupling agent in this comparative example.
Comparative example 2:
this comparative example provides a method for preparing a soybean-based adhesive, which is different from example 1 in that only KH792 is included in the silane coupling agent in this comparative example.
Comparative example 3:
this comparative example provides a method for preparing a soybean-based adhesive, which is different from example 1 in that the silane coupling agent of example 1 is not included in this comparative example.
Comparative example 4:
this comparative example provides a method of preparing a soybean-based adhesive, which is different from example 1 in that the Ag-MOFs material of example 1 is replaced with a Zn-MOFs material.
Test example 1
This test example tested the performance of the soybean-based adhesives obtained in examples 1 to 4, comparative examples 1 to 4, by hot pressing (sizing amount 200-320 g/m) using eucalyptus veneers 2 (double-sided), hot-pressing time 5 min) to prepare a three-layer plywood. The test results are shown in table 1:
TABLE 1 Performance test of soybean-based adhesives in eucalyptus plywood
In examples 1 to 4, amino groups and epoxy groups are modified on the Ag-MOFs material, so that the reaction participation degree of the Ag-MOFs in the reaction process with the soybean gum is enhanced, the three are enabled to act synergistically, the performance stability is enhanced, and the antibacterial aging of the soybean-based adhesive is prolonged. The Ag-MOFs materials in comparative examples 1-3 are not modified with amino groups and epoxy groups at the same time, so that the bonding strength, the antibacterial and mildew-proof performance and the durability of the mildew-proof performance of the soybean-based adhesive are lower than those of the soybean-based adhesive in the examples, and the comparative examples 1-3 are only added with one silane coupling agent, so that the reactivity is weaker in the curing process, an interpenetrating network structure cannot be effectively formed, the water resistance is poor, and after 72 hours of water extraction, the plate adhesive substance is collapsed, so that the whole adhesive structure is completely destroyed, and the soybean-based adhesive is a mildew-proof grade. The Ag-MOFs material is not included in comparative example 4 and thus the antibacterial and mildew-proof properties of the soybean-based adhesive and the durability of the antibacterial and mildew-proof properties cannot be achieved.
Test example 2
The test examples tested the properties of the soybean-based adhesives obtained in examples 1 to 4 and comparative examples 1 to 4, and the single sheets of bamboo were side-glued to each other to form a single sheet of board by side-pressing at a pressure of 1.0MPa and a hot-pressing temperature of 100℃for 8 minutes. Then through hot pressing on the front surface (sizing amount 200-320 g/m) 2 (double-sided), hot pressing time of 10min and hot pressing pressure of 1.2 MPa) to prepare the three-layer bamboo plywood. The test results are shown in table 2:
table 2 performance test of soybean-based adhesives in bamboo plywood
In examples 1 to 4, amino groups and epoxy groups are modified on the Ag-MOFs material, so that the reaction participation degree of the Ag-MOFs in the reaction process with the soybean gum is enhanced, the three are enabled to act synergistically, the performance stability is enhanced, and the antibacterial aging of the soybean-based adhesive is prolonged. The Ag-MOFs materials in comparative examples 1-3 are not modified with amino groups and epoxy groups at the same time, so that the bonding strength, the antibacterial and mildew-proof performance and the durability of the mildew-proof performance of the soybean-based adhesive are lower than those of the soybean-based adhesive in the examples, and the comparative examples 1-3 are only added with one silane coupling agent, so that the reactivity is weaker in the curing process, an interpenetrating network structure cannot be effectively formed, the water resistance is poor, and after 72 hours of water extraction, the plate adhesive substance is collapsed, so that the whole adhesive structure is completely destroyed, and the soybean-based adhesive is a mildew-proof grade. The Ag-MOFs material is not included in comparative example 4 and thus the antibacterial and mildew-proof properties of the soybean-based adhesive and the durability of the antibacterial and mildew-proof properties cannot be achieved.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (10)
1. The soybean-based adhesive is characterized by comprising the following raw materials: bean gum and modified Ag-MOFs materials; the modified Ag-MOFs material is modified with amino and epoxy groups.
2. The soybean-based adhesive according to claim 1, wherein the preparation raw materials of the modified Ag-MOFs material comprise: silver salt, primary ligand, secondary ligand, zinc source and silane coupling agent.
3. The soybean-based adhesive according to claim 2, wherein the secondary ligand comprises 4, 4-bipyridine in the preparation raw material of the modified Ag-MOFs material.
4. The soybean-based adhesive according to claim 2, wherein the main ligand comprises 2-amino terephthalic acid in the preparation raw material of the modified Ag-MOFs material.
5. The soybean-based adhesive according to claim 2, wherein the silane coupling agent is an amino coupling agent and an epoxy coupling agent.
6. A method of preparing a soybean-based adhesive according to any one of claims 1 to 5, comprising: mixing the soybean paste and the modified Ag-MOFs material.
7. The method for preparing a soybean-based adhesive according to claim 6, wherein the method for preparing the modified Ag-MOFs material comprises the steps of:
s1: mixing silver salt, a main ligand, a secondary ligand and a zinc source for reaction to obtain an Ag-MOFs material;
s2: and (3) mixing and reacting the Ag-MOFs material obtained in the step (S1) with a silane coupling agent.
8. The method of claim 7, wherein in the step S2, the temperature of the mixing reaction is 60-95 ℃.
9. The method of claim 7, wherein in step S2, the mixing reaction time is 60-120 min.
10. An artificial board, characterized in that the raw materials for preparing the artificial board comprise the soybean-based adhesive according to any one of claims 1 to 5.
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| JP6133542B2 (en) * | 2012-02-29 | 2017-05-24 | 日立化成株式会社 | Film adhesive, adhesive sheet and semiconductor device |
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| CN111500217A (en) * | 2020-04-06 | 2020-08-07 | 恩平市盈嘉丰胶粘制品有限公司 | Preparation method of multifunctional nano material modified pressure-sensitive adhesive |
| CN111495181B (en) * | 2020-04-29 | 2022-06-07 | 成都市美康三杉木业有限公司 | Composite formaldehyde capture agent and preparation method thereof, artificial board formaldehyde removal method and artificial board |
| CN114447339B (en) * | 2022-03-15 | 2023-09-15 | 宁夏氟峰新材料科技有限公司 | Modified PVDF/nanometer MOFs adhesive for lithium battery and preparation method |
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