CN100544914C - A kind of particieboard preparation method of modified soy protein adhesive - Google Patents
A kind of particieboard preparation method of modified soy protein adhesive Download PDFInfo
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- CN100544914C CN100544914C CNB2007101644519A CN200710164451A CN100544914C CN 100544914 C CN100544914 C CN 100544914C CN B2007101644519 A CNB2007101644519 A CN B2007101644519A CN 200710164451 A CN200710164451 A CN 200710164451A CN 100544914 C CN100544914 C CN 100544914C
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- Prior art keywords
- soy protein
- modified soy
- protein adhesive
- particieboard
- wood wool
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- 108010073771 Soybean Proteins Proteins 0.000 title claims abstract description 66
- 239000000853 adhesive Substances 0.000 title claims abstract description 64
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 64
- 229940001941 soy protein Drugs 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 239000002023 wood Substances 0.000 claims abstract description 38
- 210000002268 wool Anatomy 0.000 claims abstract description 32
- 238000003756 stirring Methods 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 239000003292 glue Substances 0.000 claims abstract description 13
- 235000019710 soybean protein Nutrition 0.000 claims abstract description 13
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims abstract description 12
- 238000007731 hot pressing Methods 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- 238000007605 air drying Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 6
- 239000000428 dust Substances 0.000 claims abstract description 6
- 239000000839 emulsion Substances 0.000 claims abstract description 6
- 238000005470 impregnation Methods 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 239000012188 paraffin wax Substances 0.000 claims abstract description 6
- 235000010265 sodium sulphite Nutrition 0.000 claims abstract description 6
- 239000002699 waste material Substances 0.000 claims abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 36
- 239000007787 solid Substances 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 10
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 6
- 238000004078 waterproofing Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 231100000252 nontoxic Toxicity 0.000 abstract description 3
- 230000003000 nontoxic effect Effects 0.000 abstract description 3
- 230000009965 odorless effect Effects 0.000 abstract description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 235000010469 Glycine max Nutrition 0.000 description 8
- 235000019256 formaldehyde Nutrition 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 244000068988 Glycine max Species 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 235000012054 meals Nutrition 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000007037 hydroformylation reaction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 239000004836 Glue Stick Substances 0.000 description 1
- 239000004826 Synthetic adhesive Substances 0.000 description 1
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical class OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
Landscapes
- Adhesives Or Adhesive Processes (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention discloses a kind of particieboard preparation method of modified soy protein adhesive, may further comprise the steps: 1) impregnation: 10 parts soybean protein isolates are added in 87.7 parts of modifying agent solution gradually, stir 2～3h; And then add the paraffin wax emulsions of 1 part of sodium sulfite and 1.3 parts, stir; 2) produce wood wool: the forestry processing waste of natural air drying is pulverized through beater disintegrating machine, obtains wood wool behind sorting, removal impurity and the dust; 3) applying glue: wood wool is evenly mixed with modified soy protein adhesive; 4) hot pressing: first aeration-drying, regulating step 3) moisture content of gains is 17%～22%, gets slab; Then that slab is hot-forming, get particieboard.The nontoxic odorless of particieboard, the formaldehydeless release of adopting the inventive method to produce.
Description
Technical field
The present invention relates to a kind of particieboard preparation method of modified soy protein adhesive, belong to wood-based plate and make the field.
Background technology
In recent years, particieboard had because of it that power consumption of producing is low, dimensional stability good and was easier to characteristics such as ailing and developed rapidly, was widely used in industries such as furniture, finishing, building materials and kitchen.Yet particieboard production at present exists distinct issues: burst size of methanal exceeds standard, and has limited the lifting of domestic particieboard quality.This mainly is because the auxiliary material of particieboard production at present mostly adopts three-aldehyde glue, and products made thereby is continuous release formaldehyde in use, contaminated environment not only, and the harm people are healthy, are the living environments " healthy killer " of generally acknowledging.
Along with the enhancing of people to awareness of safety and environmental consciousness, the release of formaldehyde more and more receives publicity, and calendar year 2001, national standardization administration committee has issued the mandatory national standard of " formaldehyde discharges and limits the quantity of in indoor decorating material wood-based plate and the goods thereof ".At present, the domestic E2 grade standard of realizing wood-based panel product substantially strives that all wood-based plates reach E1 grade standard (artificial board formaldehyde burst size≤9mg/100g), comprehensively start the target that wood-based plate does not have hydroformylation simultaneously.For participating in the competition of domestic and international market, part enterprise adopts the low toxicity modified urea-formaldehyde resin, but because production cost is too high, influences the production efficiency and the properties of product of enterprise, is difficult to large-scale production.Only a few enterprise adopts the isocyanate glue of formaldehydeless release, but exist cost an arm and a leg, defectives such as work progress toxicity is big, demoulding difficulty.
As far back as the thirties in 20th century, the U.S. just adopts the soy meal adhesive to produce indoor glued board, and to the fifties, the soy meal adhesive has captured 85% of U.S. glued board market, but because lower, the poor water resistance of its adhesive strength is used the production that only is confined to the less demanding indoor glued board of resistance to water.50～sixties of 20th century is along with oil industry rapid development, and the synthetic adhesive that with the petroleum derivative is base-material has progressively replaced the soy meal adhesive because of its more good adhesive strength and water resistance and cheap price.Yet because the finiteness of the non-renewable and reserves of petroleum resources, and the petroleum base adhesive has environmental pollution and abiotic degradable huge side effect, and from the nineties in last century, external research and development to soybean albumen adhesive heat up once again.At present, the domestic research that has minority R﹠D institution to carry out soybean albumen adhesive is mainly studied modified soy protein adhesive and is used for the wood chip gummed, but almost blank to the particieboard Research on Process of utilizing modified soy protein adhesive targetedly.
Summary of the invention
The technical problem to be solved in the present invention provides the particieboard preparation method of the modified soy protein adhesive of a kind of technology environment-friendly type simple, with low cost, the nontoxic odorless of particieboard, the formaldehydeless release of adopting the method to produce.
In order to solve the problems of the technologies described above, the invention provides a kind of particieboard preparation method of modified soy protein adhesive, may further comprise the steps:
1), impregnation:
10 parts soybean protein isolates are added in 87.7 parts of modifying agent solution gradually, stir 2～3h; And then add 1 part of sodium sulfite as the paraffin wax emulsions of anticorrisive agent and 1.3 parts as waterproofing agent, promptly get modified soy protein adhesive after stirring; Above umber is weight portion;
2), produce wood wool:
The forestry processing waste of natural air drying is pulverized through beater disintegrating machine, obtains wood wool behind sorting, removal impurity and the dust;
3), applying glue:
Wood wool is evenly mixed with modified soy protein adhesive; Weight sum=11～14 of the dry of the solid content/wood wool of modified soy protein adhesive and the solid content of modified soy protein adhesive: 100;
4), hot pressing:
Elder generation's aeration-drying, regulating step 3) moisture content of gains is 17%～22%, slab; Then that slab is hot-forming, get particieboard.
Improvement as the particieboard preparation method of modified soy protein adhesive of the present invention: modifying agent solution is that weight concentration is 0.2% sodium hydroxide solution or is 1% sodium dodecyl sulfate solution for weight concentration in the step 1).
Further improvement as the particieboard preparation method of modified soy protein adhesive of the present invention: hot pressing parameters is in the step 4): 160～180 ℃ of temperature, pressure 5～9MPa, time 45～75s/mm;
Further improvement as the particieboard preparation method of modified soy protein adhesive of the present invention: the granularity of control wood wool is 2～5mm step 2).
Further improvement as the particieboard preparation method of modified soy protein adhesive of the present invention: step 3) is: the wood wool after will measuring is poured the glue mixing cylinder into, stirs 15～20min after progressively spraying into modified soy protein adhesive, makes its even mixing.
Further improvement as the particieboard preparation method of modified soy protein adhesive of the present invention: in the step 3), the weight sum of the dry of the solid content/wood wool of modified soy protein adhesive and the solid content of modified soy protein adhesive=13: 100.
Further improvement as the particieboard preparation method of modified soy protein adhesive of the present invention: regulating moisture content in the step 4) is 19%.
In the present invention, weight concentration is that 0.2% sodium hydroxide solution is to be added by 0.2 weight portion NaOH to form after 99.8 weight parts waters mix; In like manner, weight concentration is that 1% sodium dodecyl sulfate solution is to be added by 1 weight portion lauryl sodium sulfate to form after 99 weight parts waters mix.What the solid content of modified soy protein adhesive was represented is: the content of soybean protein isolate in the modified soy protein adhesive.Time 45～75s/mm representative is in the step 4): the particieboard of suppressing every mm thickness needs the time of 45～75s.
In the present invention, soybean protein isolate being put into the purpose that modifying agent solution stirs is: make all soybean protein isolates be dispersed in modifying agent solution.
Particieboard preparation method of the present invention with respect to prior art, has following advantage:
1, soybean protein isolate of the present invention derives from the residue of soybean after grease processing, and it is wide, renewable to originate; Soybean albumen adhesive is easily processed processing, and with low cost.
2, preparation technology is simple, and physical and mechanical property is suitable with three-aldehyde glue stick particieboard.
3, the prepared formaldehydeless release of particieboard, nontoxic, compliance with environmental protection requirements belongs to the green particieboard of environment-friendly type; Therefore method of the present invention can realize that particieboard does not have hydroformylation production, thereby promotes the quality scale of particieboard product.
4,, the invention has the advantages that adhesive strength and resistance to water significantly improve with respect to the soy meal adhesive.
The specific embodiment
The invention will be further described below in conjunction with embodiment.
The particieboard preparation method of embodiment 1, a kind of modified soy protein adhesive, carry out following steps successively:
1), impregnation:
At first being mixed with concentration according to the ratio that adds 0.2g NaOH in every 99.8g water is 0.2% sodium hydroxide solution.Soybean protein isolate with 10kg adds in the above-mentioned sodium hydroxide solution of 87.7kg while stirring with the interpolation speed of 15～20kg/h then, at room temperature stir 2h again, all soybean protein isolates are dispersed in the sodium hydroxide solution with electric blender; The sodium sulfite that then adds 1kg as waterproofing agent, promptly gets the 100kg modified soy protein adhesive as the paraffin wax emulsions of anticorrisive agent and 1.3kg after stirring.
2), produce wood wool:
Select the forestry processing waste (moisture content is 10.5%) of natural air drying for use, impurity and dust are removed in sorting after beater disintegrating machine is pulverized, and the granularity of the wood wool of control gained is 2～5mm.
3), applying glue:
Take by weighing wood wool 75kg (in material 67.125kg), pour the wood wool after the metering into the glue mixing cylinder, spray into modified soy protein adhesive 100kg while stirring, stir 15min then, make its even mixing with the speed that sprays into of 50kg/min; It is weight sum=10/ (67.125+10)=13% of solid content of dry+modified soy protein adhesive of the solid content/wood wool of modified soy protein adhesive.
4), hot pressing:
Elder generation's aeration-drying, regulating step 3) moisture content of gains is 19% (being to contain 0.19kg water in every 1kg step 3) gains), slab; The slab of mating formation then, setting particieboard thickness is 8mm, density is 0.77g/cm
3, the control hot pressing parameters: 170 ℃ of temperature, pressure 5MPa, time 10min, hot-press solidifying moulding on hot press gets particieboard.
The particieboard preparation method of embodiment 2, a kind of modified soy protein adhesive, carry out following steps successively:
1), impregnation:
At first being mixed with concentration according to the ratio that adds 0.2g NaOH in every 99.8g water is 0.2% sodium hydroxide solution; Soybean protein isolate with 10kg adds in the above-mentioned sodium hydroxide solution of 87.7kg gradually then, at room temperature stirs 2.5h with electric blender again, and all soybean protein isolates are dispersed in the sodium hydroxide solution; The sodium sulfite that then adds 1kg as waterproofing agent, promptly gets the 100kg modified soy protein adhesive as the paraffin wax emulsions of anticorrisive agent and 1.3kg after stirring.
2), produce wood wool:
Select the forestry processing waste (moisture content is 10.5%) of natural air drying for use, impurity and dust are removed in sorting after beater disintegrating machine is pulverized, and the granularity of the wood wool of control gained is 2～5mm.
3), applying glue:
Take by weighing wood wool 90.5kg (dry 81kg), pour the wood wool after the metering into the glue mixing cylinder, stir 18min after progressively spraying into the 100kg modified soy protein adhesive, make its even mixing; It is weight sum=10/ (81+10)=11% of solid content of dry+modified soy protein adhesive of the solid content/wood wool of modified soy protein adhesive.
4), hot pressing:
Elder generation's aeration-drying, regulating step 3) moisture content of gains is 17% (being to contain 0.17kg water in every 1kg step 3) gains), slab; The slab of mating formation then, setting particieboard thickness is 8mm, density is 0.78g/cm
3, the control hot pressing parameters: 170 ℃ of temperature, pressure 7MPa, time 6min, hot-press solidifying moulding on hot press gets particieboard.
The particieboard preparation method of embodiment 3, a kind of modified soy protein adhesive, carry out following steps successively:
1), impregnation:
At first being mixed with concentration according to the ratio that adds the 1g lauryl sodium sulfate in every 99g water is 1% sodium dodecyl sulfate solution.Soybean protein isolate with 10kg adds in the above-mentioned sodium dodecyl sulfate solution of 87.7kg gradually then, stirs 3h with electric blender under the room temperature, and all soybean protein isolates are dispersed in the sodium dodecyl sulfate solution; The sodium sulfite that then adds 1kg as waterproofing agent, promptly gets the 100kg modified soy protein adhesive as the paraffin wax emulsions of anticorrisive agent and 1.3kg after stirring.
2), produce wood wool:
Select the forestry processing waste (moisture content is 10.5%) of natural air drying for use, impurity and dust are removed in sorting after beater disintegrating machine is pulverized, and the granularity of the wood wool of control gained is 2～5mm.
3), applying glue:
Take by weighing wood wool 75kg (dry 67.125kg), pour the wood wool after the metering into the glue mixing cylinder, stir 20min after progressively spraying into the 100kg modified soy protein adhesive, make its even mixing; It is weight sum=10/ (67.125+10)=13% of solid content of dry+modified soy protein adhesive of the solid content/wood wool of modified soy protein adhesive.
4), hot pressing:
Elder generation's aeration-drying, regulating step 3) moisture content of gains is 22% (being to contain 0.22kg water in every 1kg step 3) gains); The slab of mating formation then, setting particieboard thickness is 8mm, density is 0.76g/cm
3, the control hot pressing parameters: 180 ℃ of temperature, pressure 5MPa, time 8min, hot-press solidifying moulding on hot press gets particieboard.
The foregoing description is carried out the Main physical mechanics performance determining of particieboard, and test result is as shown in table 1, shows that indexs such as MOR, internal bond strength and thickness swelling rate all reach category-A particieboard Grade A national standard.
The physical and mechanical property test result of table 1 particieboard
| Density (g/cm 3) | MOR (MPa) | Internal bond strength (MPa) | Thickness swelling rate (%) | Free formaldehyde release (mg/100g) | |
| Embodiment 1 | 0.77 | 28.9 | 1.56 | 6.5 | 0 |
| Embodiment 2 | 0.78 | 18.8 | 1.20 | 7.6 | 0 |
| Embodiment 3 | 0.76 | 25.34 | 1.33 | 7.1 | 0 |
| Category-A particieboard Grade A national standard | 0.50-0.85 | ≥16.0 | ≥0.40 | ≤8.0 | ≤30 |
At last, it is also to be noted that what more than enumerate only is several specific embodiments of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (7)
1, a kind of particieboard preparation method of modified soy protein adhesive is characterized in that may further comprise the steps:
1), impregnation:
10 parts soybean protein isolates are added in 87.7 parts of modifying agent solution gradually, stir 2～3h; And then add 1 part of sodium sulfite as the paraffin wax emulsions of anticorrisive agent and 1.3 parts as waterproofing agent, promptly get modified soy protein adhesive after stirring; Above umber is weight portion;
2), produce wood wool:
The forestry processing waste of natural air drying is pulverized through beater disintegrating machine, obtains wood wool behind sorting, removal impurity and the dust;
3), applying glue:
Wood wool is evenly mixed with modified soy protein adhesive; Weight sum=11～14 of the dry of the solid content/wood wool of modified soy protein adhesive and the solid content of modified soy protein adhesive: 100;
4), hot pressing:
Elder generation's aeration-drying, regulating step 3) moisture content of gains is 17%～22%, slab; Then that slab is hot-forming, get particieboard.
2, the particieboard preparation method of modified soy protein adhesive according to claim 1 is characterized in that: modifying agent solution is that weight concentration is 0.2% sodium hydroxide solution or is 1% sodium dodecyl sulfate solution for weight concentration in the described step 1).
3, the particieboard preparation method of modified soy protein adhesive according to claim 2, it is characterized in that: hot pressing parameters is in the described step 4): 160～180 ℃ of temperature, pressure 5～9MPa, time 45～75s/mm.
4, the particieboard preparation method of modified soy protein adhesive according to claim 3 is characterized in that: the granularity of control wood wool is 2～5mm described step 2).
5, the particieboard preparation method of modified soy protein adhesive according to claim 4, it is characterized in that: described step 3) is: the wood wool after will measuring is poured the glue mixing cylinder into, stir 15～20min after progressively spraying into modified soy protein adhesive, make its even mixing.
6, the particieboard preparation method of modified soy protein adhesive according to claim 5, it is characterized in that: in the described step 3), the weight sum of the dry of the solid content/wood wool of modified soy protein adhesive and the solid content of modified soy protein adhesive=13: 100.
7, the particieboard preparation method of modified soy protein adhesive according to claim 6 is characterized in that: regulating moisture content in the described step 4) is 19%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101644519A CN100544914C (en) | 2007-12-11 | 2007-12-11 | A kind of particieboard preparation method of modified soy protein adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101644519A CN100544914C (en) | 2007-12-11 | 2007-12-11 | A kind of particieboard preparation method of modified soy protein adhesive |
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| CN101186048A CN101186048A (en) | 2008-05-28 |
| CN100544914C true CN100544914C (en) | 2009-09-30 |
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| CNB2007101644519A Expired - Fee Related CN100544914C (en) | 2007-12-11 | 2007-12-11 | A kind of particieboard preparation method of modified soy protein adhesive |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493948B (en) * | 2014-11-26 | 2016-06-08 | 南京林业大学 | A kind of preparation method of high-moisture percentage particieboard |
| CN104985666A (en) * | 2015-07-23 | 2015-10-21 | 孙小力 | Chipboard produced through casein-soybean glue and preparation method |
| CN105058542B (en) * | 2015-07-31 | 2017-05-17 | 湖北省林业科学研究院 | Vegetable albumen glue shaving board and preparation technology thereof |
| CN105252628A (en) * | 2015-11-19 | 2016-01-20 | 江南大学 | Light and environment-friendly biomass packing material and preparation method thereof |
| CN105838304B (en) * | 2016-04-05 | 2018-10-30 | 宁波中科朝露新材料有限公司 | A kind of soybean-based Formaldehyde-free adhesive can be used for particieboard and its application process |
| CN107471391A (en) * | 2017-07-24 | 2017-12-15 | 兰州科天水性科技有限公司 | A kind of timber composite adhesive, without aldehyde particieboard and its manufacture method |
| CN108582397A (en) * | 2018-05-25 | 2018-09-28 | 裴文韬 | A kind of preparation method of water proof fire retardant wheat straw board |
| CN109773933B (en) * | 2019-03-08 | 2022-07-15 | 河北建丰木业有限公司 | Preparation method of formaldehyde-free environment-friendly density board |
| CN109910127A (en) * | 2019-03-19 | 2019-06-21 | 肇庆力合技术发展有限公司 | A kind of moisture-proof wood-based plate and preparation method thereof |
| CN111423845A (en) * | 2019-11-27 | 2020-07-17 | 河南省禾佳木业有限公司 | Modified protein isolate adhesive and preparation method thereof |
| CN114290470A (en) * | 2021-12-30 | 2022-04-08 | 中国林业科学研究院木材工业研究所 | Method for manufacturing wood composite material |
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