CN105860922A - Bean pulp-base artificial board adhesive and preparation method thereof - Google Patents
Bean pulp-base artificial board adhesive and preparation method thereof Download PDFInfo
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- CN105860922A CN105860922A CN201610301248.0A CN201610301248A CN105860922A CN 105860922 A CN105860922 A CN 105860922A CN 201610301248 A CN201610301248 A CN 201610301248A CN 105860922 A CN105860922 A CN 105860922A
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- artificial board
- adhesive
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- powder
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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
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a bean pulp-base artificial board adhesive and a preparation method thereof. The bean pulp-base artificial board adhesive is prepared from 20-50 parts of defatted protein powder, 1-5 parts of denaturing agent, 1-30 parts of enhancer and 60-80 parts of dispersion medium. The preparation method includes the steps of dispersing, mixing, stirring and the like. The bean pulp-base artificial board adhesive and the preparation method have the advantages that the bean pulp-base artificial board adhesive is capable of meeting the waterproof requirements to guarantee practical performance of a protein adhesive; the problem of formaldehyde pollution in indoor air due to artificial boards is solved thoroughly; the bean pulp-base artificial board adhesive is mainly prepared from renewable resources, thereby conforming to the principle of environmental protection and sustained development.
Description
Technical field
The present invention relates to a kind of adhesive and preparation method thereof, specifically a kind of bean cake base adhesive of artificial board and
Preparation method, belongs to adhesive and preparation field thereof.
Background technology
Raising and the sustainable and stable development of the industry such as building, decorations, packaging, Chinese people along with living standards of the people
Make plate yield to increase rapidly.2014, China wood-based plate total output 3.02 hundred million m3, account for more than the 50% of Gross World Product.Wherein
Particieboard 0.17 hundred million m3, increase by 13% on a year-on-year basis；Fibre board 0.69 hundred million m3, increase by 16% on a year-on-year basis；Plywood 1.74 hundred million m3, increase by a year-on-year basis
7%.Occupy first place in the world in wood-based plate total output, plywood yield, furniture yield, wood floors yield position for years.
The adhesive commonly used in Wood-based Panel Production is formaldehyde system synthetic resin, with Lauxite and modified product thereof is
Main.Through effort for many years, China's adhesive of artificial board level of production has had large increase, wood-based plate and goods environmental protection characteristic thereof
It is greatly improved, but its goods Form aldehyde release can not be completely eliminated, and the wood-based plate that produces of many enterprises and goods thereof
(furniture, timber floor, Indoor Wooden ornament materials etc.) remain the most serious Form aldehyde release problem, are that room air is dirty
The main source of formaldehyde pollution in dye.
At present, the method reducing artificial board formaldehyde burst size mainly has following 4 kinds: 1) use low mole prop0rtion modified urea-formaldehyde tree
Fat adhesive；2) in modified urea-formaldehyde resin adhesive, formaldehyde catching agent is added；3) wood-based plate is carried out post processing；4) it is used
His environmental-protection type adhesive.But, these technical methods all also exist many defects.Such as: 1) use low mole prop0rtion modified urea-formaldehyde
Although resin adhesive can effectively reduce wood-based panel product burst size of methanal, but product bonding strength also tends to reduce, no
Can meet and use requirement；And may result in and extend hardening time, production efficiency reduces；2) at urea-formaldehyde resin for artificial board adhesive
Middle addition formaldehyde catching agent, although can effectively reduce free formaldehyde in artificial plate burst size, but reduce wood-based plate the most simultaneously
Bonding strength；Meanwhile, general formaldehyde catching agent price is often significantly larger than urea-formaldehyde resin adhesive, and its addition improves product
This, reduce product competitiveness；3) wood-based plate is carried out post processing, in the application for a patent for invention of Publication No. CN1526528
Disclose a kind of manufacturing process using ammonia vacuum method to prepare E1/EO level environment friendly artificial board；Publication No. CN2394770
Utility model patent discloses a kind of processing means reducing artificial board formaldehyde burst size, these post-processing approachs, not only makes
Obtaining wood-based plate manufacturing process complicated, and equipment for after-treatment investment is huge, production cost significantly improves；4) other environment-friendly types are used
Adhesive, such as isocyanates adhesive, cause Wood-based Panel Production cost to increase considerably, producting process difficulty strengthen, enterprise
All it is difficult to user accept；Using general proteins adhesive to prepare wood-based plate bonding strength low, wood-based plate easily comes unglued.To sum up institute
State, although above-mentioned measure can effectively reduce free formaldehyde in artificial plate burst size, but can not thoroughly solve Form aldehyde release problem, or
Cross high reason due to production cost and cannot promote.
It addition, the most commonly used adhesive of artificial board the most all also exists the fossil resource Dependence Problem of raw material, it is not inconsistent
Close the requirement of sustainable development.
Summary of the invention
In order to solve the problems referred to above, the present invention devises a kind of bean cake base adhesive of artificial board and preparation method thereof, it is possible to
Meet the water-fast requirement of adhesion agent for artificial board, it is ensured that the Practical Performance of protein adhesive；Thoroughly solve wood-based plate to bring
Room air in formaldehyde pollution problem；Primary raw material is Renewable resource, meets environmental conservation and continuable development principle.
The technical scheme is that
A kind of bean cake base adhesive of artificial board, including the component of following weight portion:
Defatted protein powder 20-50 part, denaturant 1-5 part, reinforcing agent 1-30 part, disperse medium 60-80 part.
Preferably, described bean cake base adhesive of artificial board, by weight, including following component: defatted protein powder 27-33
Part, denaturant 1-2 part, reinforcing agent 7-20 part, disperse medium 65-73 part.
Wherein, the protein content in described defatted protein powder is more than 40%, and preferably 43～50%, to guarantee more preferably should
With effect and control cost.
Described defatted protein powder is selected from defat soybean protein powder, defatted peanut protein powder, defatted cotton dregs powder, defat haemproteins
One or more in powder, defat feather albumen powder, defat bone protein powder, the most preferably defat soybean protein powder or defatted peanut
Egg albumen powder.
Further, the particle diameter of described defatted protein powder is all higher than 150 mesh, preferably 200～250 mesh.
Defat soybean protein powder of the present invention, defatted peanut protein powder, defatted cotton dregs powder, defat haemproteins powder, defat plumage
Hairless protein powder and defat bone protein powder is the most commercially available buys, as limited in being purchased from Hui Fu grain and oil company limited, benefit sea, Zhoukou City grain and oil
Company, grain and oil limited company of China etc., or use conventional degreasing method to prepare, concrete grammar is the present invention do not make this
It is particularly limited to.
Described denaturant is selected from dodecylbenzene sodium sulfonate, carbamide, magnesium hydroxide, guanidine hydrochloride, dodecyl sodium sulfate, salt
Acid, sodium carbonate, phosphoric acid one or more.
Above-mentioned denaturant is commercially available prod, is purchased from Tianjin Chemical Co., Ltd. etc..Use the above-mentioned denaturant can be by egg
White molecule depolymerization exposes intramolecular active group, is conducive to reacting with the reinforcing agent added forming more closely knit cross-linked network
Network, lays the foundation for strengthening adhesive；Additionally denaturant degradable protein molecular, produces a large amount of small-molecule substance, is conducive to oozing
Enter timber is formed more glue nail, increase adhesive dry and wet shape bonding strength.
Preferably, one or more in phosphoric acid, magnesium hydroxide, sodium carbonate (10% solution) of described denaturant.
Described reinforcing agent is the reduction lignin of preparation under certain condition.
Wherein, described lignin is papermaking wastewater lignin, and reduction process is divided into degraded and reduction two parts, and the first step is adopted
Improving lignin guaiacyl content with hydropyrolysis process, second step and sodium borohydride react hydrogenating reduction by lignin guaiacyl
Construction recovery is class DOPA structure, preparation reduction lignin reinforcing agent.
Reinforcing agent is based on class DOPA structure, and on the one hand can be oxidized to DOPA quinone can hand over amino on albumen and carboxylic acid group
Connection reaction forms cross-linked network structure, strengthens the water-fast bonding property of adhesive；On the other hand DOPA structure can be produced with wood surface
Raw chelation and strong hydrogen bonding effect improve the water-fast bonding property of adhesive.
Described reinforcing agent synthesis technique is: utilize autoclave 250 DEG C of Water Under heat treatment lignins 2 hours,
Rear release adds sodium borohydride (the 1% of lignin dry weight) and reacts 14 hours at normal temperatures, prepares reinforcing agent.
Described disperse medium selects ordinary tap water or softens water.
The present invention additionally provides the preparation method of a kind of adhesion agent for artificial board simultaneously, comprises the steps:
1) weigh each component according to weight proportion, make defatted protein powder be dispersed in disperse medium；
2) adding denaturant makes it be sufficiently mixed；
3) add reinforcing agent, stir.
Wherein, in the most each step, raw material adds the most at normal temperatures, and stirring is equal after the addition.
It is an advantage of the current invention that:
1) strengthen adhesive with reduction lignin after the present invention uses denaturant degeneration, make reinforcing agent mutual with soybean protein molecule
Effect forms crosslinking inierpeneirating network structure, and DOPA structure introducing soybean albumen adhesive is formed strong chelation, solves
General proteins adhesive poor water resistance, dry shape bonding strength are low, the problem of water boiling resistance poor performance, it is possible to meet wood-based plate glue
The water-fast requirement of stick, it is ensured that the Practical Performance of protein adhesive, and the plywood prepared by the adhesive of the present invention reaches
II class plywood requirement in GB；
2) present invention is as adhesion agent for artificial board to egg albumen powder and lignin after material modification processes, and does not contains free first
Aldehyde, there is not Form aldehyde release problem, thoroughly solves the formaldehyde pollution in the room air that wood-based plate brings in the wood-based plate of splicing
Problem；
3) egg albumen powder and the lignin as reinforcing agent are reproducible resource, as the primary raw material of adhesive, help
In solving conventional artificial's board adhesive uses the exhausted problem of synthesis fossil feedstock, meet environmental conservation former with sustainable development
Then；
4) it is effectively utilized agricultural byproducts processing residue and paper industry garbage, comprehensively utilizes resource, save production cost,
Improve value-added content of product.
Below in conjunction with specific embodiment, the invention will be further described.
Detailed description of the invention
Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.Without departing substantially from present invention spirit
In the case of essence, the amendment that the inventive method, step or condition are made or replacement, belong to the scope of the present invention.
If not specializing, the conventional means that technological means used in embodiment is well known to those skilled in the art.
Additionally, all each component raw material used in embodiment is known commercially available prod.
The percentage sign " % " related in the present invention, if not specified, forefinger mass percent；But the percentage ratio of solution,
Unless otherwise specified, refer in solution 100ml containing some grams of solute；Percentage ratio between liquid, refers to capacity when 20 DEG C
Ratio.
Embodiment 1
Present embodiments providing a kind of adhesion agent for artificial board, described adhesive is got the raw materials ready by following weight proportion:
Soften water 70 Kg
Defat soybean protein powder 30 Kg
Denaturant 1 Kg
Reinforcing agent 10kg
Wherein, the protein content more than 43% (purchased from Hui Fu grain and oil company limited) of defat soybean protein powder；Denaturant be commercially available commonly
Magnesium hydroxide (purchased from Tianjin chemical institute, content 98%)；Reinforcing agent is self-control reduction lignin (solids content 60%, viscosity
6400mPa.s).
The present embodiment provides the preparation method of above-mentioned adhesive simultaneously, and concrete preparation process is as follows:
1) in the blender being furnished with agitator, add whole softening water, defat soybean protein powder, stir.
2) add denaturant, stir.
3) add reinforcing agent, stir.
The performance quality index of gained adhesive is shown in Table 1.
Embodiment 2
Present embodiments providing a kind of adhesion agent for artificial board, described adhesive is got the raw materials ready by following weight proportion
Tap water 67 Kg
Defat soybean protein powder 33 Kg
Denaturant 1.5Kg
Reinforcing agent 15kg
Wherein, the protein content more than 43% (purchased from Hui Fu grain and oil company limited) of defat soybean protein powder；Denaturant be commercially available commonly
Sodium carbonate (purchased from Tianjin chemical institute, content 98%)；Reinforcing agent is self-control reduction lignin (solids content 60%, viscosity
6400mPa.s).
The preparation method of adhesive described in the present embodiment is shown in Table 1 with embodiment 1, the performance quality index of gained adhesive.
Embodiment 3
Present embodiments providing a kind of adhesion agent for artificial board, described adhesive is got the raw materials ready by following weight proportion:
Soften water 73 Kg
Defatted peanut protein powder 27 Kg
Denaturant 1Kg
Reinforcing agent 7kg
Wherein, the protein content more than 43% (purchased from Hui Fu grain and oil company limited) of defat soybean protein powder；Denaturant be commercially available commonly
Phosphoric acid (purchased from Tianjin chemical institute, content 98%)；Reinforcing agent is self-control reduction lignin (solids content 60%, viscosity
6400mPa.s).
The preparation method of adhesive described in the present embodiment is shown in Table 1 with embodiment 1, the performance quality index of gained adhesive.
Embodiment 4
Present embodiments providing a kind of adhesion agent for artificial board, described adhesive is got the raw materials ready by following weight proportion:
Soften water 65 Kg
Defatted peanut protein powder 33 Kg
Denaturant 2Kg
Reinforcing agent 20kg
Wherein, the protein content more than 43% (purchased from Hui Fu grain and oil company limited) of defat soybean protein powder；Denaturant be commercially available commonly
Sodium carbonate (purchased from Tianjin chemical institute, content 98%)；Reinforcing agent is self-control reduction lignin (solids content 60%, viscosity
6400mPa.s).
The preparation method of adhesive described in the present embodiment is shown in Table 1 with embodiment 1, the performance quality index of gained adhesive.
Adhensive performance index prepared by table 1 embodiment 1-4
Reference examples 1-8
Respectively compared with embodiment 1-4, matched group 1-4 is followed successively by the adhesive being added without denaturant.
Respectively compared with embodiment 1-4, matched group 5-8 is followed successively by the adhesive being added without reinforcing agent.
Reference examples 9
(concrete formula is the low content of free formaldehyde content cyanurotriamide modified urea resin adhesive of 50% commercially available solids content: three
Poly cyanamid addition is the 10% of total adhesive weight, mol ratio 1.18, carbamide add in three batches mol ratio be respectively 2.1,
1.45,1.18, tripolycyanamide adds with second batch carbamide.Purchased from wood industry company limited of Xuzhou Allianz)
Test example
The adhesive being respectively adopted embodiment of the present invention 1-4 and reference examples 1-9 manufactures three layers of 400 × 400mm plywood.
Board using poplar board: moisture content is dried to 6-14%；Thick 1.6mm；
Veneer adhesive uses product and the product of reference examples 1-10 of embodiment of the present invention 1-5.
Plywood is prepared by following normal process:
Applying glue: the two-sided applying glue of central layer, glue-spread is 300-460g/m2.
Aging and time: Guan Bi ageing, 10-30 minute.
Preload pressure and time: precompressed 30-40 minute, pressure 0.8MPa.
Hot pressing pressure: 1.0MPa, hot pressing temperature: 110-120 DEG C, hot pressing time: 70-90s/mm.
By GB/T17657-1999 " wood-based plate and face artificial board physicochemical property experimental technique " detection method to production
Plywood product carries out performance detection, and testing result is shown in Table 2.
Table 2 plywood burst size of methanal and bonding strength
Test result indicate that, the burst size of methanal of the plywood that the formaldehydeless biomass adhesive of the present invention manufactures is the lowest (is wood
Material body Form aldehyde release), the bonding strength of plywood prepared by the biomass adhesive of interpolation reinforcing agent is detected by II plywood
At more than 1.10MPa, decocting in water can be reached and within 10 hours, do not come unglued, dry strength more than 1.2, improve about 50% than matched group, increase
Potent fruit is notable.
Formaldehyde-free protein adhesive of the present invention is easy to use, it is not necessary to change existing Wood-based Panel Production equipment and technique,
Therefore need not increase equipment investment.
At present, the price of the low content of free formaldehyde content cyanurotriamide modified urea resin adhesive of 50% solids content exists
2800-3600 yuan/ton, the price of soybean protein stick of the present invention (35% solids content) at 2600-3500 yuan/ton, price and trimerization
Cyanamide modified urea-formaldehyde resin adhesive is close, and performance is greatly improved.
The alternative custom plywood adhesive containing formaldehyde of adhesive prepared by the present invention, prepares total applying glue during plywood
Measuring constant, therefore use cost is suitable with modified urea-formaldehyde resin adhesive.Therefore, the protein adhesive of the present invention has good
Application prospect.
Although, the present invention is described in detail the most with a general description of the specific embodiments, but
On the basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Cause
This, these modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to the scope of protection of present invention.
Claims (10)
1. a bean cake base adhesive of artificial board, it is characterised in that: include the component of following weight portion:
Defatted protein powder 20-50 part, denaturant 1-5 part, reinforcing agent 1-30 part, disperse medium 60-80 part.
A kind of bean cake base adhesive of artificial board the most according to claim 1, it is characterised in that: described defatted protein powder is selected from
Defat soybean protein powder, defatted peanut protein powder, defatted cotton dregs powder, defat haemproteins powder, defat feather albumen powder, defat bone protein
One or more in powder.
A kind of bean cake base adhesive of artificial board the most according to claim 1, it is characterised in that: the grain of described defatted protein powder
Footpath is all higher than 150 mesh.
A kind of bean cake base adhesive of artificial board the most according to claim 1, it is characterised in that: described denaturant is selected from 12
Sodium alkyl benzene sulfonate, carbamide, magnesium hydroxide, guanidine hydrochloride, dodecyl sodium sulfate, hydrochloric acid, sodium carbonate, the one of phosphoric acid or several
Kind.
A kind of bean cake base adhesive of artificial board the most according to claim 4, it is characterised in that: described denaturant is selected from phosphorus
One or more in acid, magnesium hydroxide, sodium carbonate.
A kind of bean cake base adhesive of artificial board the most according to claim 1, it is characterised in that: described reinforcing agent is certain bar
The reduction lignin of preparation under part.
A kind of bean cake base adhesive of artificial board the most according to claim 6, it is characterised in that described reinforcing agent synthesis technique
For: utilize autoclave to add sodium borohydride at normal temperatures in 250 DEG C of Water Under heat treatment lignins 2 hours, rear release
React 14 hours, prepare reinforcing agent.
A kind of bean cake base adhesive of artificial board the most according to claim 1, it is characterised in that: described disperse medium selects general
Logical tap water or softening water.
9. the preparation method of the adhesion agent for artificial board as described in claim 1-8 any one, it is characterised in that include
Following steps:
1) weigh each component according to weight proportion, make defatted protein powder be dispersed in disperse medium；
2) adding denaturant makes it be sufficiently mixed；
3) add reinforcing agent, stir.
Preparation method the most according to claim 9, it is characterised in that: in above-mentioned steps, raw material adds the most at normal temperatures.
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| CN201610301248.0A CN105860922A (en) | 2016-05-09 | 2016-05-09 | Bean pulp-base artificial board adhesive and preparation method thereof |
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Cited By (7)
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| CN106318313A (en) * | 2016-09-28 | 2017-01-11 | 书香门地(上海)新材料科技有限公司 | Formaldehyde-free soybean-protein-based adhesive for multilayer solid-wood composite floorboard and preparation method of formaldehyde-free soybean-protein-based adhesive |
| CN106753223A (en) * | 2016-12-30 | 2017-05-31 | 湖南省林业科学院 | A kind of modified soybean base timber adhesive and preparation method thereof |
| CN106753231A (en) * | 2016-11-24 | 2017-05-31 | 北华大学 | A kind of lignin-base is without aldehyde adhesive and its preparation and application |
| CN108326998A (en) * | 2018-02-11 | 2018-07-27 | 广西艾尚嘉家居有限公司 | A kind of production method of formaldehydeless three-ply board |
| CN108485569A (en) * | 2018-03-28 | 2018-09-04 | 方建波 | A kind of preparation method of retardation setting type building structure glue material |
| CN111961438A (en) * | 2020-08-26 | 2020-11-20 | 华南农业大学 | Electrostatic combined aqueous binder and application thereof in lithium ion battery |
| CN113493678A (en) * | 2021-07-28 | 2021-10-12 | 南京林业大学 | Formaldehyde-free soy protein adhesive and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106318313A (en) * | 2016-09-28 | 2017-01-11 | 书香门地(上海)新材料科技有限公司 | Formaldehyde-free soybean-protein-based adhesive for multilayer solid-wood composite floorboard and preparation method of formaldehyde-free soybean-protein-based adhesive |
| CN106753231A (en) * | 2016-11-24 | 2017-05-31 | 北华大学 | A kind of lignin-base is without aldehyde adhesive and its preparation and application |
| CN106753223A (en) * | 2016-12-30 | 2017-05-31 | 湖南省林业科学院 | A kind of modified soybean base timber adhesive and preparation method thereof |
| CN106753223B (en) * | 2016-12-30 | 2019-03-12 | 湖南省林业科学院 | A kind of modified soybean base timber adhesive and preparation method thereof |
| CN108326998A (en) * | 2018-02-11 | 2018-07-27 | 广西艾尚嘉家居有限公司 | A kind of production method of formaldehydeless three-ply board |
| CN108485569A (en) * | 2018-03-28 | 2018-09-04 | 方建波 | A kind of preparation method of retardation setting type building structure glue material |
| CN111961438A (en) * | 2020-08-26 | 2020-11-20 | 华南农业大学 | Electrostatic combined aqueous binder and application thereof in lithium ion battery |
| CN111961438B (en) * | 2020-08-26 | 2021-11-05 | 华南农业大学 | Electrostatic combined aqueous binder and application thereof in lithium ion battery |
| CN113493678A (en) * | 2021-07-28 | 2021-10-12 | 南京林业大学 | Formaldehyde-free soy protein adhesive and preparation method thereof |
| CN113493678B (en) * | 2021-07-28 | 2022-06-28 | 南京林业大学 | Formaldehyde-free soy protein adhesive and preparation method thereof |
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