CN110341248A - A kind of glued board that bonding strength is high - Google Patents
A kind of glued board that bonding strength is high Download PDFInfo
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- CN110341248A CN110341248A CN201910602852.0A CN201910602852A CN110341248A CN 110341248 A CN110341248 A CN 110341248A CN 201910602852 A CN201910602852 A CN 201910602852A CN 110341248 A CN110341248 A CN 110341248A
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- Prior art keywords
- glued board
- bonding strength
- modified
- parts
- bean gum
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/13—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board all layers being exclusively wood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- 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
- 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
Abstract
The invention discloses a kind of glued boards that bonding strength is high, it is related to environmental technology field, the glued board includes at least three layers of plank layer and at least two layers of adhesive layer, the adhesive layer is modified bean gum, and the modified bean gum is modified to obtain by the composite modified graphene of n-isopropyl acrylamide and polyethylene glycol to bean gum；Glued board prepared by the present invention, by being modified processing to adhesive, so that bonding strength be greatly improved.
Description
Technical field
The invention belongs to environmental technology fields, and in particular to a kind of glued board that bonding strength is high.
Background technique
Glued board be veneer is peeled by juggle or by flitch slicing at veneer, then with adhesive it is glued made of three layers or
The board-like material of multilayer usually uses odd-level veneer, and forms the orthogonal gluing of the machine direction of adjacent layer veneer.
Glued board is one of furniture common used material, is one of big plate of wood-based plate three, also for aircraft, ship, train, vapour
The effects of vehicle, building and packing case material.One group of veneer is usually formed by the orthogonal assembly gluing of adjacent layer grain direction, usually
Its dash board and inner plating are symmetrically arranged at the two sides of central core or plate core.It is criss-cross by grain direction with the veneer after gluing
The slab being made into, is suppressed under conditions of being heated or not heated.The number of plies is generally odd number, and minority also has even number.Side in length and breadth
To physics, engineering properties difference it is smaller.Common gluing board type has three-ply board, five-ply board etc..Glued board can improve timber
Utilization rate is a main path for saving timber.
Glued board is made of plate and adhesive, therefore, between glued board plate between the height and plate of bonding strength
Adhesive property have direct relationship.
The prior art " 2016111716175 a kind of waterproof pluwood adhesive and preparation method thereof ", by following mass parts
Number formula components composition: 30-50 parts of UF resin, 1-2 parts of curing agent, 3-5 parts of formaldehyde, 3-5 parts of alkanolamide, 3-5 parts of modifying agent,
10-20 parts of filler, 6-8 parts of coking coal oil, 10-20 parts of bean powder, 1-3 parts of reinforcing agent, 6-10 parts of ammonium hydroxide, 2-4 parts of metallic soap, polyethylene
6-8 parts of alcohol, 2-4 parts of antioxidant, it is good that the present invention can have thermosetting property, and viscosity is high, and intensity is high, and endurance is good, it is not easy to become
Matter, good water-proof effect, glued board long service life, it is not easy to open, bean powder, polyethylene are used in the waterproof pluwood adhesive
Alcohol etc., however, common bean powder adhesive property is bad, each component is mixed in documents 1, can not play good waterproof
Effect and adhesive property, while which are added gas formaldehydes, are unfavorable for environmental protection.
Summary of the invention
The purpose of the present invention is being directed to existing problem, a kind of glued board that bonding strength is high is provided.
The present invention is achieved by the following technical solutions:
A kind of glued board that bonding strength is high, the glued board include at least three layers of plank layer and at least two layers of adhesive layer, institute
Adhesive layer is stated as modified bean gum, the modified bean gum is by the composite modified graphene of n-isopropyl acrylamide and polyethylene glycol pair
Bean gum is modified to obtain.
Further, the plank layer is Eucalyptus plate layer or poplar plate layer.
Further, the composite modified graphene preparation method of the n-isopropyl acrylamide the following steps are included:
(1) graphene is added in reaction kettle, then adds the tannin aqueous acid of 20 times of its quality again, shaken 10min, obtain
To mixed dispersion liquid, the tannic acid solution mass fraction is 5.55；
(2) deionized water, n-isopropyl acrylamide, dimethacrylate are successively added into mixed dispersion liquid obtained above
Glycol ester, benzene sulfonic acid sodium salt, and nitrogen is passed through into reaction kettle, air in reaction kettle is discharged, 78 DEG C are heated to, with 1200r/
Min revolving speed stir 2 hours, be then filtered, wash, drying to constant weight under 40 DEG C of vacuum to get.
Wherein, the graphene purity: > 98wt%；Thickness: 1.55-1.74nm；Diameter: 0.8-1.2 μm；The number of plies: < 10
Layer；Specific surface area: 700-8000m2/g ；Product Status: powder；Powder color: black.
Further, the deionized water, n-isopropyl acrylamide, ethylene glycol dimethacrylate, benzene sulfonic acid sodium salt
40-45:3-5:5-8:2-4:45 is followed successively by with mixed dispersion liquid mass ratio.
Further, the modified bean gum preparation method the following steps are included:
By weight by 12-14 parts of soybean protein isolate, 88-93 parts of deionized water, the composite modified stone of n-isopropyl acrylamide
Black alkene 4-6 parts are successively added in reaction kettle, then with 1200r/min revolving speed, at 25-28 DEG C, stir 30-40min, then
5-8 parts of polyethylene glycol are added again, continues to stir 10min, then add 1-2 parts of glutaraldehyde solution, are then adjusted again using lye anti-
System pH to 10.2-10.5 is answered, is heated to 65-68 DEG C, continues to stir 30min with 500r/min revolving speed, is then allowed to stand 15min,
Again cooled to room temperature to get.
Further, the glutaraldehyde solution concentration is 0.12mol/L.
Further, the lye be potassium hydroxide, sodium hydroxide, it is any in sodium carbonate.
Further, the concentration of lye is 1.2mol/L.
When glued board is processed, hot pressing temperature is 162 DEG C, hot pressing pressure 1.2MPa, hot pressing time 60s/mm.
The utility model has the advantages that glued board prepared by the present invention, by being modified processing to adhesive, to be greatly improved
Bonding strength, the bean gum adhesive used in the prior art lead to glue since the hydrogen bond for being difficult to be formed hydrogen bond or formation is less
Conjunction intensity is not high, and by being modified processing to soybean protein isolate, can provide for soybean protein isolate has more greatly the present invention
Sequence self assembly space, so that bonding strength is greatly improved, meanwhile, pass through the modification to soybean protein isolate, energy
Enough viscositys for reducing bean gum to a certain extent, reach certain plasticization effect, the modification bean gum promoted can be dried
Strong hydrogen bonding effect is formed in journey, is not only increased bonding strength, is also effectively raised the water resistance of glued board.
Specific embodiment
Embodiment 1
A kind of glued board that bonding strength is high, the glued board include at least three layers of plank layer and at least two layers of adhesive layer, institute
Adhesive layer is stated as modified bean gum, the modified bean gum is by the composite modified graphene of n-isopropyl acrylamide and polyethylene glycol pair
Bean gum is modified to obtain.
Further, the plank layer is Eucalyptus plate layer or poplar plate layer.
Further, the composite modified graphene preparation method of the n-isopropyl acrylamide the following steps are included:
(1) graphene is added in reaction kettle, then adds the tannin aqueous acid of 20 times of its quality again, shaken 10min, obtain
To mixed dispersion liquid；
(2) deionized water, n-isopropyl acrylamide, dimethacrylate are successively added into mixed dispersion liquid obtained above
Glycol ester, benzene sulfonic acid sodium salt, and nitrogen is passed through into reaction kettle, air in reaction kettle is discharged, 78 DEG C are heated to, with 1200r/
Min revolving speed stir 2 hours, be then filtered, wash, drying to constant weight to get.
Further, the deionized water, n-isopropyl acrylamide, ethylene glycol dimethacrylate, benzene sulfonic acid sodium salt
40:3:5:2:45 is followed successively by with mixed dispersion liquid mass ratio.
Further, the modified bean gum preparation method the following steps are included:
By weight by 12 parts of soybean protein isolate, 88 parts of deionized water, 4 parts of the composite modified graphene of n-isopropyl acrylamide
Successively it is added in reaction kettle, then with 1200r/min revolving speed, at 25 DEG C, stirs 30min, then add polyethylene glycol 5 again
Part, continue to stir 10min, then add 1 part of glutaraldehyde solution, reaction system pH to 10.2, heating are then adjusted using lye again
To 65 DEG C, continue with 500r/min revolving speed stir 30min, be then allowed to stand 15min, then cooled to room temperature to get.
Further, the glutaraldehyde solution concentration is 0.12mol/L.
Further, the lye be potassium hydroxide, sodium hydroxide, it is any in sodium carbonate.
Further, the concentration of lye is 1.2mol/L.
Embodiment 2
A kind of glued board that bonding strength is high, the glued board include at least three layers of plank layer and at least two layers of adhesive layer, institute
Adhesive layer is stated as modified bean gum, the modified bean gum is by the composite modified graphene of n-isopropyl acrylamide and polyethylene glycol pair
Bean gum is modified to obtain.
Further, the plank layer is Eucalyptus plate layer or poplar plate layer.
Further, the composite modified graphene preparation method of the n-isopropyl acrylamide the following steps are included:
(1) graphene is added in reaction kettle, then adds the tannin aqueous acid of 20 times of its quality again, shaken 10min, obtain
To mixed dispersion liquid；
(2) deionized water, n-isopropyl acrylamide, dimethacrylate are successively added into mixed dispersion liquid obtained above
Glycol ester, benzene sulfonic acid sodium salt, and nitrogen is passed through into reaction kettle, air in reaction kettle is discharged, 78 DEG C are heated to, with 1200r/
Min revolving speed stir 2 hours, be then filtered, wash, drying to constant weight to get.
Further, the deionized water, n-isopropyl acrylamide, ethylene glycol dimethacrylate, benzene sulfonic acid sodium salt
45:5:8:4:45 is followed successively by with mixed dispersion liquid mass ratio.
Further, the modified bean gum preparation method the following steps are included:
By weight by 14 parts of soybean protein isolate, 93 parts of deionized water, 6 parts of the composite modified graphene of n-isopropyl acrylamide
Successively it is added in reaction kettle, then with 1200r/min revolving speed, at 28 DEG C, stirs 40min, then add polyethylene glycol 8 again
Part, continue to stir 10min, then add 2 parts of glutaraldehyde solution, reaction system pH to 10.5, heating are then adjusted using lye again
To 68 DEG C, continue with 500r/min revolving speed stir 30min, be then allowed to stand 15min, then cooled to room temperature to get.
Further, the glutaraldehyde solution concentration is 0.12mol/L.
Further, the lye be potassium hydroxide, sodium hydroxide, it is any in sodium carbonate.
Further, the concentration of lye is 1.2mol/L.
Embodiment 3
A kind of glued board that bonding strength is high, the glued board include at least three layers of plank layer and at least two layers of adhesive layer, institute
Adhesive layer is stated as modified bean gum, the modified bean gum is by the composite modified graphene of n-isopropyl acrylamide and polyethylene glycol pair
Bean gum is modified to obtain.
Further, the plank layer is Eucalyptus plate layer or poplar plate layer.
Further, the composite modified graphene preparation method of the n-isopropyl acrylamide the following steps are included:
(1) graphene is added in reaction kettle, then adds the tannin aqueous acid of 20 times of its quality again, shaken 10min, obtain
To mixed dispersion liquid；
(2) deionized water, n-isopropyl acrylamide, dimethacrylate are successively added into mixed dispersion liquid obtained above
Glycol ester, benzene sulfonic acid sodium salt, and nitrogen is passed through into reaction kettle, air in reaction kettle is discharged, 78 DEG C are heated to, with 1200r/
Min revolving speed stir 2 hours, be then filtered, wash, drying to constant weight to get.
Further, the deionized water, n-isopropyl acrylamide, ethylene glycol dimethacrylate, benzene sulfonic acid sodium salt
42:4:6:3:45 is followed successively by with mixed dispersion liquid mass ratio.
Further, the modified bean gum preparation method the following steps are included:
By weight by 14 parts of soybean protein isolate, 93 parts of deionized water, 6 parts of the composite modified graphene of n-isopropyl acrylamide
Successively it is added in reaction kettle, then with 1200r/min revolving speed, at 28 DEG C, stirs 30-40min, then add poly- second two again
8 parts of alcohol, continues to stir 10min, then add 2 parts of glutaraldehyde solution, reaction system pH to 10.5 is then adjusted using lye again, is added
Heat to 68 DEG C, continue with 500r/min revolving speed stir 30min, be then allowed to stand 15min, then cooled to room temperature to get.
Further, the glutaraldehyde solution concentration is 0.12mol/L.
Further, the lye be potassium hydroxide, sodium hydroxide, it is any in sodium carbonate.
Further, the concentration of lye is 1.2mol/L.
With glued board made of three layers of poplar plate, two layers of adhesive layer, hot pressing temperature is 162 DEG C, and hot pressing pressure is
1.2MPa, hot pressing time 60s/mm；
The test of bonding strength: according to the rule in national standard GB/T 9846.3 200 about the wet shear strength measurement of II class glued board
It is fixed, test specimen to be measured is impregnated 3 hours in 63 ± 3 DEG C of water before test, all test specimen removing situations is checked, is cooled to test specimen
25 ± 5 DEG C, test specimen is stretched with the rate of 10mm/min using omnipotent mechanics machine, tests its shear strength；
Table 1
| Bonding strength MPa | |
| Embodiment 1 | 1.11 |
| Embodiment 2 | 1.32 |
| Embodiment 3 | 1.40 |
| Comparative example 1 | 0.82 |
| Comparative example 2 | 0.89 |
| Comparative example 3 | 0.97 |
Comparative example 1 and the difference of embodiment 1 are only that and do not add the composite modified graphene of n-isopropyl acrylamide；
Comparative example 2 and the difference of embodiment 1 are only that the composite modified graphene of n-isopropyl acrylamide replacing with unmodified place
The graphene of reason；
Comparative example 3 and the difference of embodiment 1 are only that and do not add polyethylene glycol；
As can be seen from Table 1, glued board prepared by the present invention has excellent bonding strength.
Continue to test, be sample with embodiment 1, plywood hot-pressing time, hot pressing pressure compare different heat with above-mentioned test specimen
Temperature is pressed, the influence to bonding strength:
Table 2
| Hot pressing temperature/DEG C | Bonding strength/MPa |
| 140 | 0.95 |
| 145 | 0.97 |
| 150 | 1.03 |
| 155 | 1.04 |
| 160 | 1.08 |
| 162 | 1.11 |
| 164 | 1.11 |
| 168 | 1.10 |
As can be seen from Table 2, with the raising of hot pressing temperature, the bonding strength of glued board increases, when reaching 162 DEG C, reaches most
Greatly, hot pressing temperature is continued growing, bonding strength can not continue growing.
Claims (8)
1. a kind of glued board that bonding strength is high, which is characterized in that the glued board includes at least three layers of plank layer and at least two
Layer adhesive layer, the adhesive layer are modified bean gum, and the modified bean gum is by the composite modified graphite of n-isopropyl acrylamide
Alkene and polyethylene glycol are modified to obtain to bean gum.
2. a kind of glued board that bonding strength is high as described in claim 1, which is characterized in that the plank layer is Eucalyptus plate layer
Or poplar plate layer.
3. a kind of glued board that bonding strength is high as described in claim 1, which is characterized in that the n-isopropyl acrylamide
Composite modified graphene preparation method the following steps are included:
(1) graphene is added in reaction kettle, then adds the tannin aqueous acid of 20 times of its quality again, shaken 10min, obtain
To mixed dispersion liquid；
(2) deionized water, n-isopropyl acrylamide, dimethacrylate are successively added into mixed dispersion liquid obtained above
Glycol ester, benzene sulfonic acid sodium salt, and nitrogen is passed through into reaction kettle, air in reaction kettle is discharged, 78 DEG C are heated to, with 1200r/
Min revolving speed stir 2 hours, be then filtered, wash, drying to constant weight to get.
4. a kind of glued board that bonding strength is high as claimed in claim 3, which is characterized in that the deionized water deionization
Water, n-isopropyl acrylamide, ethylene glycol dimethacrylate, benzene sulfonic acid sodium salt and mixed dispersion liquid mass ratio are followed successively by 40-
45:3-5:5-8:2-4:45。
5. a kind of glued board that bonding strength is high as described in claim 1, which is characterized in that the modified bean gum preparation method
The following steps are included:
By weight by 12-14 parts of soybean protein isolate, 88-93 parts of deionized water, the composite modified stone of n-isopropyl acrylamide
Black alkene 4-6 parts are successively added in reaction kettle, then with 1200r/min revolving speed, at 25-28 DEG C, stir 30-40min, then
5-8 parts of polyethylene glycol are added again, continues to stir 10min, then add 1-2 parts of glutaraldehyde solution, are then adjusted again using lye anti-
System pH to 10.2-10.5 is answered, is heated to 65-68 DEG C, continues to stir 30min with 500r/min revolving speed, is then allowed to stand 15min,
Again cooled to room temperature to get.
6. a kind of glued board that bonding strength is high as claimed in claim 5, which is characterized in that the glutaraldehyde solution concentration is
0.12mol/L。
7. a kind of glued board that bonding strength is high as claimed in claim 5, which is characterized in that the lye be potassium hydroxide,
It is any in sodium hydroxide, sodium carbonate.
8. a kind of glued board that bonding strength is high as claimed in claim 7, which is characterized in that the concentration of lye is
1.2mol/L。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910602852.0A CN110341248A (en) | 2019-07-05 | 2019-07-05 | A kind of glued board that bonding strength is high |
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| CN201910602852.0A CN110341248A (en) | 2019-07-05 | 2019-07-05 | A kind of glued board that bonding strength is high |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113771153A (en) * | 2021-08-25 | 2021-12-10 | 安捷包装（苏州）股份有限公司 | Preparation method of plywood for bakelite box |
| CN116714062A (en) * | 2023-06-15 | 2023-09-08 | 湖南九富家居材料有限公司 | Environment-friendly plywood and preparation method thereof |
| CN116714062B (en) * | 2023-06-15 | 2024-05-14 | 湖南九富家居材料有限公司 | Environment-friendly plywood and preparation method thereof |
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| CN113771153A (en) * | 2021-08-25 | 2021-12-10 | 安捷包装（苏州）股份有限公司 | Preparation method of plywood for bakelite box |
| CN116714062A (en) * | 2023-06-15 | 2023-09-08 | 湖南九富家居材料有限公司 | Environment-friendly plywood and preparation method thereof |
| CN116714062B (en) * | 2023-06-15 | 2024-05-14 | 湖南九富家居材料有限公司 | Environment-friendly plywood and preparation method thereof |
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Application publication date: 20191018 |