CN102977846A - Adhesive for plywood and method for preparing same - Google Patents
Adhesive for plywood and method for preparing same Download PDFInfo
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- CN102977846A CN102977846A CN2012104804421A CN201210480442A CN102977846A CN 102977846 A CN102977846 A CN 102977846A CN 2012104804421 A CN2012104804421 A CN 2012104804421A CN 201210480442 A CN201210480442 A CN 201210480442A CN 102977846 A CN102977846 A CN 102977846A
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Abstract
The invention provides an adhesive for a plywood, prepared from the following raw materials according to parts by weight: 70-80 parts of dispersion medium, 20-35 parts of degreased soyabean protein powder, 0.5-3 parts of sodium carbonate, 2-6 parts of urea, 1-2 parts of complexing agent and 1-5 parts of enhancer. The adhesive provided by the invention has the characteristics that all the components have excellent mutual synergistic effect, a materials such as a metal salt is compounded with the soybean protein, and simultaneously, glutaraldehyde is taken as the enhancer so that the problem of poor water resistence of the common soybean protein adhesive is solved; therefore, the adhesive is capable of meeting the waterproof requirement of the adhesive for the plywood and guaranteeing the practical performance of the soybean protein adhesive; and the plywood prepared by using the adhesive provided by the invention is capable of meeting the international requirements of the class II plywood. Besides, the invention also provides a method for preparing the adhesive for the plywood; and the method is simple in process, convenient for operation and suitable for popularization and application.
Description
Technical field
The present invention relates to a kind of tackiness agent and preparation method thereof, particularly a kind of tackiness agent for the preparation of glued board and preparation method thereof.
Background technology
Over 30 years, China's wood-based plate increase of production is rapid.2010, China's wood-based plate ultimate production 1.536 billion cubic meters accounted for 50% of world's weight, wherein glued board 7139.66 ten thousand steres, core-board 1652.28 ten thousand steres.Wood-based plate ultimate production, glued board output, furniture output, wood floors output occupy the No. 1 in the world for years.
The tackiness agent that generally adopts in the Wood-based Panel Production is that formaldehyde is synthetic resins, mainly is urea-formaldehyde resin and modified product thereof.Although through effort for many years, China's adhesive of artificial board production level has had large increase, wood-based plate and goods environmental protection characteristic thereof are greatly improved, but wood-based plate and goods (furniture, timber floor, Indoor Wooden finishing material etc.) thereof that many enterprises produce still exist comparatively serious formaldehyde release And Spread of Solute, are the main sources of formaldehyde pollution in the room air pollution.
At present, the method for reduction artificial board formaldehyde burst size mainly contains following 4 kinds: 1) adopt low mol ratio modified urea-formaldehyde resin adhesive; 2) adopt other environmental-protection type adhesives; 3) in the urea-formaldehyde resin for artificial board tackiness agent, add formaldehyde-trapping agent; 4) wood-based plate is carried out aftertreatment.But these technological methods all exist many defectives.For example: 1) although adopt low mol ratio modified urea-formaldehyde resin adhesive can effectively reduce the burst size of methanal of wood-based panel product, the bonding strength of product also often reduces, and can not satisfy service requirements; And prolong set time, and production efficiency reduces; 2) adopt other environmental-protection type adhesives, such as the isocyanates tackiness agent, cause the production cost of wood-based plate to increase considerably, enterprise and user are difficult to accept; Adopt the wood-based plate bonding strength of common protein adhesive preparation low, wood-based plate easily comes unglued; 3) in the urea-formaldehyde resin for artificial board tackiness agent, add formaldehyde-trapping agent, although can effectively reduce the free formaldehyde in artificial plate burst size, often reduce simultaneously the bonding strength of wood-based plate; Simultaneously, general formaldehyde-trapping agent price often is higher than urea-formaldehyde resin adhesive far away, and its adding has just improved product cost, has reduced product competitiveness; 4) wood-based plate being carried out aftertreatment, is to disclose a kind of manufacturing process that adopts the ammonia vacuum method to prepare E1/EO level environment friendly artificial board in the application for a patent for invention of CN1526528 such as publication number; Publication number is to disclose a kind for the treatment of unit that reduces artificial board formaldehyde burst size in the utility model patent of CN2394770, these post-treating methods, and not only so that the manufacturing process of wood-based plate is complicated, and the finishing apparatus investment is huge, and production cost obviously improves.In sum, although above-mentioned measure can effectively reduce the free formaldehyde in artificial plate burst size, can not thoroughly solve the formaldehyde release And Spread of Solute, or owing to production cost is crossed high reason and can't be promoted.
In addition, China application 200810032289.X discloses a kind of novel timber adhesive, and this tackiness agent comprises following component: water: 100 weight parts; Proteinaceous raw material: 3～45 weight parts; Acidity regulator: 0.01～15 weight part; Aromatics: 0.01～15 weight part; Solidifying agent: 0.01～15 weight part; Sanitas: 0.01～15 weight part; Viscosity modifier: 0～15 weight part; Filler: 0～10 weight part; Siccative: 0～15 weight part.The almost formaldehydeless release in production and use procedure of described novel timber adhesive, in addition, it has higher water tolerance.But find in the actual use procedure, because its complicated components, and mutual synergy is not obvious, causes its stability and viscosity not ideal enough, and practicality is relatively poor, therefore, still remains to be proposed the soybean glue stick of a kind of environmental protection and excellent property.
Summary of the invention
The first purpose of the present invention is the various defectives that exist for prior art, provides a kind of high quality glued board to stick with glue agent, and described tackiness agent does not contain formaldehyde, is that a kind of environmental protection type veneer board sticks with glue agent.
The second purpose of the present invention is to provide a kind of above-mentioned glued board to stick with glue the preparation method of agent, and described method technique is simple, easy to operate, suitable applying.
For realizing the first purpose, the present invention adopts following technical scheme:
A kind of glued board sticks with glue agent, described tackiness agent is prepared from by the raw material that comprises following proportioning by weight: dispersion medium 70-80 part, degreasing soybean protein powder 20-35 part, yellow soda ash 0.5-3 part, urea 2-6 part, complexing agent 1-2 part, toughener 1-5 part.
Above-mentioned tackiness agent is prepared from as main body with degreasing soybean protein powder, and soybean protein helps to solve the exhausted problem of using synthetic fossil feedstock in the conventional glued board adhesive as a kind of reproducible resource, meets environment protection and continuable development principle.And soybean protein source is abundant, can stable mass production, have very large advantage.
Described soybean glue stick is to utilize degreasing soybean protein powder to process, and has effectively utilized the soyabean processing residuum, and utilize resources synthetically saves production cost, and has improved value-added content of product.
Wherein, above-mentioned degreasing soybean protein powder is understood for those skilled in the art as a kind of soyabean processing residuum commonly used and is obtained easily, and the present invention is not particularly limited this.
Wherein, preferred described tackiness agent comprises by weight: dispersion medium 72-76 part, degreasing soybean protein powder 25-30 part, yellow soda ash 1-2.5 part, urea 3-4 part, complexing agent 1.2-1.8 part, toughener 2-4 part.
Above-mentioned complexing agent comprises at least and but is not limited to zinc chloride, copper sulfate and zirconium carbonate.Those skilled in the art will envision that, guaranteeing that complexing agent contains under the prerequisite of zinc chloride, copper sulfate and zirconium carbonate simultaneously, can further add other effective complexing agent and realize the present invention,, the concrete those skilled in the art that are chosen as grasp.
In order to simplify the composition of tackiness agent, the present invention preferably adopts the complexing agent that only contains zinc chloride, copper sulfate and zirconium carbonate, and further find, when the weight part proportioning between zinc chloride, copper sulfate and the zirconium carbonate in the described complexing agent is: during 0.8-1.2:0.5-1.5:0.5-1.5, can facilitate better complex reaction, finally obtain the high quality glue paste, wherein more preferably in the complexing agent weight part proportioning between zinc chloride, copper sulfate and the zirconium carbonate be: 0.9-1.0:0.8-1.2:0.8-1.2.Preparation only needs each prescription of accurate weighing during complexing agent, then with its grinding, mixes and gets final product.
Among the present invention, adopt the glyoxal solution of mass concentration 30-40% as toughener, the present invention adopts the compound of the materials such as metal-salt and soybean protein, adopt the oxalic dialdehyde toughener, solved the problem of common soybean glue stick poor water resistance, can satisfy the water-fast requirement that glued board sticks with glue agent, guarantee the Practical Performance of soybean glue stick, and reach II class glued board requirement in the GB by the glued board of production of adhesive of the present invention.
In the tackiness agent of the present invention, described dispersion medium is water, is preferably softening water.
The present invention sticks with glue agent as glued board to soybean protein after processing, and does not contain free formaldehyde, and there is not the formaldehyde release And Spread of Solute in the glued board of splicing, thoroughly solves the formaldehyde pollution problem in the room air that wood-based plate brings.
The contriver finds in the practical study process, although other complexing agents and the toughener that adopt prior art to commonly use replace auxiliary agent gained tackiness agent of the present invention, or the soybean protein mucus that does not add any auxiliary agent also has certain viscosity, but in experiment test, find, the stability of above-mentioned tackiness agent and bonding strength far away can not be up to standard, can't promote in actual applications.And because each component of tackiness agent of the present invention and consumption design science thereof are reasonable, formed each other best synergistic effect, therefore, its water tolerance and the strength and stability of tackiness agent all are significantly improved.
In addition, for realizing the second purpose, the present invention adopts following technical scheme:
A kind of preparation method of above-mentioned tackiness agent, described method comprises the steps:
1) degreasing soybean protein powder and yellow soda ash are added in the dispersion medium, stir, get mixture;
2) in described mixture, add complexing agent, stir;
3) continue to add toughener, stir, and get final product.
Among the preparation method of the present invention, preferred steps 1 is: yellow soda ash and degreasing soybean protein powder are added dispersion medium, 40-80 ℃ of lower insulation 3-6 hour, get mixture after stirring.
Among the preparation method of the present invention, preferred steps 2 is: add complexing agent after making described mixture be cooled to 25-35 ℃ and stir.
As a kind of preferred forms of the present invention, described method comprises the steps:
1) yellow soda ash and degreasing soybean protein powder are added dispersion medium, at 45-70 ℃ of lower insulation reaction 4-5 hour, get mixture after stirring;
2) add complexing agent after making described mixture be cooled to 30-32 ℃ and stir, make it carry out complex reaction;
3) continue to add toughener, stir, namely get tackiness agent.
Adopt technique scheme, the present invention has the following advantages:
(1) the formaldehydeless soybean glue stick of the present invention is easy to use, needn't do change to existing Wood-based Panel Production equipment and process, does not therefore need to increase facility investment.
(2) no-formaldehyde adhesive of the present invention is cheap.At present, the price of the low free formaldehyde urea-formaldehyde resin adhesive of 50% solids content is at 1800-2500 yuan/ton, the price of synvaren is at 5000-6000 yuan/ton, the price of soybean glue stick of the present invention (35% solids content) is at 1500-2000 yuan/ton, price approaches with urea-formaldehyde resin adhesive well below synvaren.The alternative conventional glued board adhesive that contains formaldehyde of tackiness agent of the present invention's preparation, the total resin added during the preparation glued board is constant, so use cost is suitable with urea-formaldehyde resin adhesive, well below the synvaren use cost.Therefore, soybean glue stick of the present invention has a good application prospect.
Embodiment
Embodiment 1
1) get the raw materials ready by following weight proportion:
Wherein, complexing agent is the pulvis that Beijing Forestry University's Materials science and technical college prepare voluntarily, comprising zinc chloride: 0.8 part, copper sulfate: 0.5 part, zirconium carbonate: 0.5 part, said components is ground evenly, mix; Toughener is that mass concentration is 30% glyoxal solution.
2) in the reactor of being furnished with agitator, thermometer and condensing works, add whole softening waters, yellow soda ash, soybean protein powder, urea, stir.
3) be heated to 45-47 ℃, insulation reaction 3 hours gets mixture.
4) mixture is cooled to 30 ℃, makes even soybean protein mucus.
5) add complexing agent and stirring in the soybean protein mucus, make it carry out complex reaction.
6) continue to wherein adding toughener, stir, namely get the soybean glue stick.The performance quality index of present embodiment gained tackiness agent sees Table 1.
Embodiment 2
1) get the raw materials ready by following weight proportion:
Wherein, complexing agent is the pulvis that Beijing Forestry University's Materials science and technical college prepare voluntarily, comprises 1.2 parts of zinc chloride, 1.5 parts in copper sulfate, 1.5 parts of zirconium carbonates, and it is ground evenly, mixes; Toughener is that mass concentration is 30% glyoxal solution.
2) in the reactor of being furnished with agitator, thermometer and condensing works, add whole softening waters, yellow soda ash, urea, soybean protein powder, stir;
3) be heated to 40-42 ℃, reacted 6 hours, get mixture;
4) mixture is cooled to 30 ℃, makes even soybean protein mucus.
5) add complexing agent and stirring in the soybean protein mucus, make it carry out complex reaction.
6) continue to wherein adding toughener, stir, namely get the soybean glue stick.The performance quality index of present embodiment gained tackiness agent sees Table 1.
Embodiment 3
1) get the raw materials ready by following weight proportion:
Wherein, complexing agent is the pulvis that Beijing Forestry University's Materials science and technical college prepare voluntarily, comprises the component of following weight proportion: 0.8 part of zinc chloride, 1.5 parts in copper sulfate, 1 part of zirconium carbonate, it is ground evenly, and mix; Toughener is that mass concentration is 30% glyoxal solution.
2) in the reactor of being furnished with agitator, thermometer and condensing works, add whole softening waters, yellow soda ash, urea, soybean protein powder, stir.
3) be heated to 68-70 ℃, reacted 5 hours, get mixture.
4) mixture is cooled to 30 ℃, makes even soybean protein mucus.
5) add complexing agent and stirring in the soybean protein mucus, make it carry out complex reaction.
6) continue to wherein adding toughener, stir, namely get the soybean glue stick.The performance quality index of present embodiment gained tackiness agent sees Table 1.
Embodiment 4
1) get the raw materials ready by following weight proportion:
Wherein, complexing agent is the pulvis that Beijing Forestry University's Materials science and technical college prepare voluntarily, comprises 1 part of zinc chloride, 1 part in copper sulfate, 1 part of zirconium carbonate, and it is ground evenly, mixes; Toughener is that mass concentration is 40% glyoxal solution.
2) in the reactor of being furnished with agitator, thermometer and condensing works, add whole softening waters, yellow soda ash, urea, soybean protein powder, stir;
3) be heated to 78-80 ℃, reacted 4 hours, get mixture;
4) mixture is cooled to 25 ℃, makes even soybean protein mucus.
5) add complexing agent and stirring in the soybean protein mucus, make it carry out complex reaction.
6) continue to wherein adding toughener, stir, namely get the soybean glue stick.The performance quality index of present embodiment gained tackiness agent sees Table 1.
Embodiment 5
1) get the raw materials ready by following weight proportion:
Wherein, complexing agent is the pulvis that Beijing Forestry University's Materials science and technical college prepare voluntarily, comprises the component of following weight proportion: 0.8 part of zinc chloride, 1.2 parts in copper sulfate, 1.2 parts of zirconium carbonates, it is ground evenly, and mix; Toughener is that mass concentration is 35% glyoxal solution.
2) in the reactor of being furnished with agitator, thermometer and condensing works, add whole softening waters, yellow soda ash, urea, soybean protein powder, stir.
3) be heated to 58-60 ℃, reacted 3.5 hours, get mixture.
4) the mixture thing is cooled to 35 ℃, makes even soybean protein mucus.
5) add complexing agent and stirring in the soybean protein mucus, make it carry out complex reaction.
6) continue to wherein adding toughener, stir, namely get the soybean glue stick.
The performance quality index of present embodiment gained tackiness agent sees Table 1.
The performance index of table 1 soybean glue stick
In order to verify the performance of tackiness agent of the present invention, the contriver has further launched series of experiments, and length is limit, and only exemplifies the data that tool represents power herein.
Test example 1
This test example adopts respectively the product of embodiment of the invention 1-3 and reference examples 1-6 to make three layers of 450 * 450mm glued board.
Wherein:
Reference examples 1-3: adopt respectively among the embodiment 1-3 step 4 gained soybean protein mucus as tackiness agent;
Reference examples 4: compare with the embodiment of the invention 1, distinctive points only is that present embodiment does not add complexing agent.
Reference examples 5: compare with the embodiment of the invention 1, distinctive points only is that present embodiment does not add toughener.
Reference examples 6: the wood adhesive of China application 200810032289.X embodiment 7(take skimmed soy beans bean cake powder and soybean protein isolate as the main body preparation)
Board using poplar board: water ratio is dried to 8-12%; Thick 1.6mm;
The veneer tackiness agent adopts the product of embodiment of the invention 1-3 and the product of reference examples 1-6.
Prepare glued board by following normal process:
Applying glue: the two-sided applying glue of central layer, Amount of spread are 220-300g/m
2
Aging and time: closed ageing, 10-30 minute.
Preload pressure and time: precompressed 30 minutes, pressure 0.8MPa.
Hot pressing pressure: 1.2MPa, hot pressing temperature is 120-130 ℃ of C, hot pressing time is 70s/mm.
By GB/T17657-1999 " wood-based plate and face artificial board physicochemical property experimental technique " detection method the plywood product of producing is carried out Performance Detection, detected result sees Table 2.
Table 2 glueds joint burst size of methanal and the bonding strength of glued board
Above-mentioned test-results shows, the burst size of methanal of the glued board that the formaldehydeless soybean glue stick of the present invention is made is very low (being that timber body formaldehyde discharges) all, the bonding strength of glued board reaches the (poplar 〉=0.70MPa) of II class glued board standard in the GB more than 1.10MPa.In addition, the experimental result of reference examples 1-5 shows, changes the composition of toughener or complexing agent, does not perhaps add toughener and complexing agent, and the bonding strength of gained glue paste does not reach standard far away, can't be applied to reality.The experimental result of reference examples 6 shows that the bonding strength of gained tackiness agent of the present invention significantly is better than prior art.
Test example 2
This test example has been carried out stability test to the product of embodiment of the invention 1-3 and reference examples 1-6 respectively.
Wherein:
Reference examples 1-3: the soybean protein mucus among the employing embodiment 1-3 is as tackiness agent;
Reference examples 4: compare with the embodiment of the invention 1, distinctive points only is that present embodiment does not add complexing agent.
Reference examples 5: compare with the embodiment of the invention 1, distinctive points only is that present embodiment does not add toughener.
Reference examples 6: the wood adhesive of China application 200810032289.X embodiment 7(take skimmed soy beans bean cake powder and soybean protein isolate as the main body preparation)
Test method: stability and tackiness agent viscosity with reference to GB-T 14074-2006 wood adhesive and resin method of inspection detection tackiness agent thereof change.
Test-results: in 5 days of experiment test, tackiness agent outward appearance and the viscosity of embodiment 1-3 do not have considerable change, and reference examples 1-6 all has elutriation in various degree to go out, and viscosity also has comparatively significantly decline, wherein the most obvious with reference examples 1-3, reference examples 4-6 takes second place.
Above-mentioned test-results shows that gained tackiness agent stability of the present invention significantly is better than the soybean protein glue paste of other compositions.
Although above the present invention is described in detail with a general description of the specific embodiments, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements all belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (10)
1. a glued board sticks with glue agent, it is characterized in that: described tackiness agent is prepared from by the raw material that comprises following proportioning by weight: dispersion medium 70-80 part, degreasing soybean protein powder 20-35 part, yellow soda ash 0.5-3 part, urea 2-6 part, complexing agent 1-2 part, toughener 1-5 part.
2. tackiness agent according to claim 1, it is characterized in that: described tackiness agent is prepared from by the raw material that comprises following proportioning by weight: dispersion medium 72-76 part, degreasing soybean protein powder 25-30 part, yellow soda ash 1-2.5 part, urea 3-4 part, complexing agent 1.2-1.8 part, toughener 2-4 part.
3. tackiness agent according to claim 1 and 2 is characterized in that described complexing agent comprises zinc chloride, copper sulfate and zirconium carbonate at least.
4. tackiness agent according to claim 3, it is characterized in that: the weight part proportioning in the described complexing agent between zinc chloride, copper sulfate and the zirconium carbonate is: 0.8-1.2:0.5-1.5:0.5-1.5.
5. tackiness agent according to claim 1, it is characterized in that: described toughener is the glyoxal solution of mass concentration 30-40%.
6. tackiness agent according to claim 1, it is characterized in that: described dispersion medium is softening water.
7. the preparation method of each described tackiness agent of claim 1-6, described method comprises the steps:
1) degreasing soybean protein powder, urea and yellow soda ash are added in the dispersion medium, stir, get mixture;
2) in described mixture, add complexing agent, stir;
3) continue to add toughener, stir, and get final product.
8. preparation method according to claim 7, it is characterized in that: described step 1 is: yellow soda ash and degreasing soybean protein powder are added dispersion medium, 40-80 ℃ of lower insulation 3-6 hour, get mixture after stirring.
9. preparation method according to claim 7, it is characterized in that: described step 2 is: add complexing agent after making described mixture be cooled to 25-35 ℃ and stir.
10. preparation method according to claim 7, it is characterized in that: described method comprises the steps:
1) yellow soda ash, urea and degreasing soybean protein powder are added dispersion medium, at 45-70 ℃ of lower insulation reaction 4-5 hour, get mixture after stirring;
2) add complexing agent after making described mixture be cooled to 30-32 ℃ and stir;
3) continue to add toughener, stir, namely get tackiness agent.
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| CN201210480442.1A CN102977846B (en) | 2012-11-22 | 2012-11-22 | Adhesive for plywood and method for preparing same |
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| CN201210480442.1A CN102977846B (en) | 2012-11-22 | 2012-11-22 | Adhesive for plywood and method for preparing same |
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| CN103740325A (en) * | 2013-12-30 | 2014-04-23 | 北京林业大学 | Adhesive for artificial boards and preparation method thereof, and plywood prepared from adhesive |
| CN103897658A (en) * | 2014-03-19 | 2014-07-02 | 中国林业科学研究院林产化学工业研究所 | Double-component soybean meal-based adhesive for fiberboards and application thereof |
| CN104786341A (en) * | 2015-03-29 | 2015-07-22 | 桐城市诚信木塑科技材料有限公司 | Production technology for casein-soybean glue bamboo floor |
| CN103740324B (en) * | 2013-12-30 | 2016-04-13 | 北京林业大学 | A kind of adhesion agent for artificial board and its preparation method and application |
| CN105860922A (en) * | 2016-05-09 | 2016-08-17 | 北京林业大学 | Bean pulp-base artificial board adhesive and preparation method thereof |
| CN106590526A (en) * | 2016-12-17 | 2017-04-26 | 浦北县建业胶合板有限责任公司 | Soybean protein adhesive for plywood and preparation method of soybean protein adhesive |
| CN107699192A (en) * | 2017-08-30 | 2018-02-16 | 含山县茂盛胶合板厂 | A kind of glued board High-performance adhesive |
| CN107903871A (en) * | 2017-11-28 | 2018-04-13 | 黄桂凤 | A kind of soybean albumen adhesive and preparation method thereof |
| CN107903841A (en) * | 2017-11-28 | 2018-04-13 | 黄桂凤 | A kind of Adhesive for plywood and preparation method thereof |
| CN107932652A (en) * | 2017-11-28 | 2018-04-20 | 黄桂凤 | A kind of preparation method of environment-friendly plywood |
| CN107984560A (en) * | 2017-11-29 | 2018-05-04 | 黄桂凤 | A kind of preparation method of flame-retardant plywood |
| CN108000644A (en) * | 2017-11-28 | 2018-05-08 | 黄桂凤 | A kind of furniture plywood preparation method |
| CN114479761A (en) * | 2022-01-28 | 2022-05-13 | 南京林业大学 | Cottonseed protein-based environment-friendly adhesive for plywood as well as preparation method and application thereof |
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| CN103740325A (en) * | 2013-12-30 | 2014-04-23 | 北京林业大学 | Adhesive for artificial boards and preparation method thereof, and plywood prepared from adhesive |
| CN103740324B (en) * | 2013-12-30 | 2016-04-13 | 北京林业大学 | A kind of adhesion agent for artificial board and its preparation method and application |
| CN103740325B (en) * | 2013-12-30 | 2016-04-20 | 北京林业大学 | Adhesion agent for artificial board, its preparation method and utilize its glued board |
| CN103897658A (en) * | 2014-03-19 | 2014-07-02 | 中国林业科学研究院林产化学工业研究所 | Double-component soybean meal-based adhesive for fiberboards and application thereof |
| CN103897658B (en) * | 2014-03-19 | 2016-08-17 | 中国林业科学研究院林产化学工业研究所 | Fibre board use double-component dregs of beans base adhesive and application thereof |
| CN104786341A (en) * | 2015-03-29 | 2015-07-22 | 桐城市诚信木塑科技材料有限公司 | Production technology for casein-soybean glue bamboo floor |
| CN105860922A (en) * | 2016-05-09 | 2016-08-17 | 北京林业大学 | Bean pulp-base artificial board adhesive and preparation method thereof |
| CN106590526A (en) * | 2016-12-17 | 2017-04-26 | 浦北县建业胶合板有限责任公司 | Soybean protein adhesive for plywood and preparation method of soybean protein adhesive |
| CN107699192A (en) * | 2017-08-30 | 2018-02-16 | 含山县茂盛胶合板厂 | A kind of glued board High-performance adhesive |
| CN107903871A (en) * | 2017-11-28 | 2018-04-13 | 黄桂凤 | A kind of soybean albumen adhesive and preparation method thereof |
| CN107903841A (en) * | 2017-11-28 | 2018-04-13 | 黄桂凤 | A kind of Adhesive for plywood and preparation method thereof |
| CN107932652A (en) * | 2017-11-28 | 2018-04-20 | 黄桂凤 | A kind of preparation method of environment-friendly plywood |
| CN108000644A (en) * | 2017-11-28 | 2018-05-08 | 黄桂凤 | A kind of furniture plywood preparation method |
| CN107984560A (en) * | 2017-11-29 | 2018-05-04 | 黄桂凤 | A kind of preparation method of flame-retardant plywood |
| CN114479761A (en) * | 2022-01-28 | 2022-05-13 | 南京林业大学 | Cottonseed protein-based environment-friendly adhesive for plywood as well as preparation method and application thereof |
| CN114479761B (en) * | 2022-01-28 | 2023-03-28 | 南京林业大学 | Cottonseed protein-based environment-friendly adhesive for plywood and preparation method and application thereof |
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| CN102977846B (en) | 2015-06-24 |
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