CN107671976A - A kind of bamboo fiberboard processing technology of low expansion rate of water absorption - Google Patents
A kind of bamboo fiberboard processing technology of low expansion rate of water absorption Download PDFInfo
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- CN107671976A CN107671976A CN201711073904.7A CN201711073904A CN107671976A CN 107671976 A CN107671976 A CN 107671976A CN 201711073904 A CN201711073904 A CN 201711073904A CN 107671976 A CN107671976 A CN 107671976A
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- Prior art keywords
- bamboo
- hot pressing
- water absorption
- expansion rate
- processing technology
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Links
- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 84
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 84
- 241001330002 Bambuseae Species 0.000 title claims abstract description 84
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 84
- 239000011425 bamboo Substances 0.000 title claims abstract description 84
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 239000011094 fiberboard Substances 0.000 title claims abstract description 39
- 238000012545 processing Methods 0.000 title claims abstract description 18
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 14
- 238000005516 engineering process Methods 0.000 title claims abstract description 12
- 238000007731 hot pressing Methods 0.000 claims abstract description 49
- 239000000835 fiber Substances 0.000 claims abstract description 37
- 230000001070 adhesive effect Effects 0.000 claims abstract description 28
- 239000000853 adhesive Substances 0.000 claims abstract description 27
- 239000007921 spray Substances 0.000 claims abstract description 19
- 239000003292 glue Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000005470 impregnation Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 8
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical class Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims abstract description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 56
- 230000004913 activation Effects 0.000 claims description 24
- 238000001994 activation Methods 0.000 claims description 24
- 238000010992 reflux Methods 0.000 claims description 24
- 235000019441 ethanol Nutrition 0.000 claims description 22
- 238000002156 mixing Methods 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 21
- 238000003756 stirring Methods 0.000 claims description 21
- 239000002253 acid Substances 0.000 claims description 20
- 239000002808 molecular sieve Substances 0.000 claims description 20
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 15
- 239000004359 castor oil Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 150000007513 acids Chemical class 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 10
- 229920000858 Cyclodextrin Polymers 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 9
- 239000006185 dispersion Substances 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 9
- 238000011084 recovery Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- PCWPQSDFNIFUPO-VDQKLNDWSA-N (1S,3R,5R,6S,8R,10R,11S,13R,15R,16S,18R,20R,21S,23R,25R,26S,28R,30R,31S,33R,35R,36R,37S,38R,39S,40R,41S,42R,43S,44R,45S,46R,47S,48R,49S)-37,39,41,43,45,47,49-heptakis(2-hydroxyethoxy)-5,10,15,20,25,30,35-heptakis(hydroxymethyl)-2,4,7,9,12,14,17,19,22,24,27,29,32,34-tetradecaoxaoctacyclo[31.2.2.23,6.28,11.213,16.218,21.223,26.228,31]nonatetracontane-36,38,40,42,44,46,48-heptol Chemical compound OCCO[C@H]1[C@H](O)[C@@H]2O[C@H]3O[C@H](CO)[C@@H](O[C@H]4O[C@H](CO)[C@@H](O[C@H]5O[C@H](CO)[C@@H](O[C@H]6O[C@H](CO)[C@@H](O[C@H]7O[C@H](CO)[C@@H](O[C@H]8O[C@H](CO)[C@@H](O[C@H]1O[C@@H]2CO)[C@@H](O)[C@@H]8OCCO)[C@@H](O)[C@@H]7OCCO)[C@@H](O)[C@@H]6OCCO)[C@@H](O)[C@@H]5OCCO)[C@@H](O)[C@@H]4OCCO)[C@@H](O)[C@@H]3OCCO PCWPQSDFNIFUPO-VDQKLNDWSA-N 0.000 claims description 6
- 235000019438 castor oil Nutrition 0.000 claims description 4
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 4
- 239000001116 FEMA 4028 Substances 0.000 claims description 2
- 229960004853 betadex Drugs 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 230000002209 hydrophobic effect Effects 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 abstract description 9
- 239000004411 aluminium Substances 0.000 abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 9
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
- 239000002023 wood Substances 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 11
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-UHFFFAOYSA-N 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- JMWGZSWSTCGVLX-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;2-methylprop-2-enoic acid Chemical class CC(=C)C(O)=O.CC(=C)C(O)=O.CC(=C)C(O)=O.CCC(CO)(CO)CO JMWGZSWSTCGVLX-UHFFFAOYSA-N 0.000 description 2
- 108010073771 Soybean Proteins Proteins 0.000 description 2
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 235000010469 Glycine max Nutrition 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- WHGYBXFWUBPSRW-FOUAGVGXSA-N beta-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO WHGYBXFWUBPSRW-FOUAGVGXSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012978 lignocellulosic material Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- -1 pentaerythrite stearic acid Ester Chemical class 0.000 description 1
- 229940001941 soy protein Drugs 0.000 description 1
- 229940071440 soy protein isolate Drugs 0.000 description 1
- 235000019710 soybean protein Nutrition 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/0209—Methods, e.g. characterised by the composition of the agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/12—Moulding of mats from fibres
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a kind of bamboo fiberboard processing technology of low expansion rate of water absorption, it is related to bamboo fiberboard processing technique field, including following process：(1) impregnation, (2) applying glue, (3) hot pressing.The present invention sprays adhesive to first uniformly spraying polymeric aluminum chlorides solution on bamboo fibre be glued in process again, pass through being used cooperatively for aluminium polychloride, to strengthen the physical and mechanical property of made bamboo fiberboard while expansion rate of water absorption is reduced, so as to improve the synthesis performance of made bamboo fiberboard；The use feature of environmental protection of made bamboo fiberboard is strong, zero release of formaldehyde during use is ensure that, to meet environmental requirement；The resource reutilization that bamboo -processing industry discards bamboo fibre is realized simultaneously, bamboo wood is played its value to greatest extent.
Description
Technical field：
The present invention relates to bamboo fiberboard processing technique field, and in particular to a kind of bamboo fiberboard processing of low expansion rate of water absorption
Technique.
Background technology：
Fiberboard structure is uniform, and medium density, surface is smooth, has good processing characteristics, therefore used extensively
In furniture manufacturing industry and construction industry.At present, the raw material for being widely used in fiberboard preparation is lignocellulosic and Lauxite.But
It is the excessive felling with the forest reserves, how ensures the lignocellulosic material supply of abundance, it has also become fiberboard manufacturing industry
The major issue faced.In addition, Lauxite derives from non-renewable fossil resources, easily discharged under hygrothermal environment
Go out free formaldehyde, seriously pollute environment, endanger human health.
China's bamboo resource enriches, and has substantial amounts of bamboo fibre remnants to go out of use in Bamboo processing enterprise, and bamboo and timber phase
Than with intensity is high, good toughness the characteristics of, be fiberboard desirable feedstock.But in fiberboard process, due to applying glue
Inequality, easily cause fibrous caking and into felt, directly affect plate property.Patent CN200710164450.4 discloses one kind and changed
The bamboo fiberboard preparation method of property soybean albumen adhesive, is modified obtained gluing with modifying agent to soybean protein isolate
Agent, modifying agent for weight concentration 0.2% sodium hydroxide solution or weight concentration 1% sodium dodecyl sulfate solution, its
Principle is so as to forming protein sol, the physics of institute's fibreboard using the alkalescence of modifying agent with hydrolyzed soy protein isolate
Mechanical property can reach fiberboard Grade A national standard substantially.Bamboo fibre good water absorption, but it is used for its suction during fiberboard processing
It is water-based just to become critical defect, it can not make institute's fibreboard that there is excellent water resistance.
The content of the invention：
The technical problems to be solved by the invention are to provide that a kind of technological operation is simple and easy to do, physical mechanics performance
The bamboo fiberboard processing technology of low expansion rate of water absorption excellent and using the feature of environmental protection by force.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of bamboo fiberboard processing technology of low expansion rate of water absorption, including following process：
(1) impregnation：First ethoxylated hydrogenated castor oil is added in 45-55 DEG C of warm water, is heated to reflux state insulation
5-15wt% dispersion liquid is made in stirring, adds hydrophobically modified hydroxyethyl-beta-schardinger dextrin and 5A molecular sieve activation powder, continues at
Insulated and stirred under reflux state, until obtaining homogeneous paste, through naturally cooling to room temperature, produce adhesive；
(2) it is glued：The bamboo fibre of length 15-20mm, water content less than 5wt% is fitted into glue mixing roller, utilizes compression
Air makes the bamboo fibre in roller be in suspended state, while using spray pattern that 5-15wt% polymeric aluminum chlorides solution is equal
It is even to be sprayed on bamboo fibre, then equally above-mentioned institute's preparing adhesive is sprayed on bamboo fibre with spray pattern, it is well mixed, finally
Dried at 55-65 DEG C to water content and be reduced to 20-25%, produce blank；
(3) hot pressing：Above-mentioned made blank is quantitatively laid in hot pressing die, and it is hot-forming using heat pressing forming machines,
155-165 DEG C of hot pressing temperature, hot pressing pressure 6-6.5MPa, hot pressing time 5-8min are set, produce bamboo fiberboard.
The quality of the ethoxylated hydrogenated castor oil, hydrophobically modified hydroxyethyl-beta-schardinger dextrin and 5A molecular sieve activation powder
Than for 1-5:15-25:1-5.
The bamboo fibre, polymeric aluminum chlorides solution, the mass ratio of adhesive are 100-200:1-5:15-25.
Hydrophobically modified hydroxyethyl-the beta-schardinger dextrin is made by hydroxyethyl-β-cyclodextrin is hydrophobically modified, its specific system
Preparation Method is：Absolute ethyl alcohol is added dropwise until be completely dissolved into hydroxyethyl-β-cyclodextrin under stirring, and add 12 phosphotungstic acids and
16- mercaptohexadecanoics base acid, is heated to reflux state insulated and stirred 2-5h, gained mixture is concentrated under reduced pressure to reclaim ethanol, treated
Gained solid is transferred in 50-60 DEG C of baking oven when ethanol recovery reaches 90-95%, is dried to constant weight, produces hydrophobically modified hydroxyl
Second group-beta-cyclodextrin.
The mass ratio of the hydroxyethyl-β-cyclodextrin, 12 phosphotungstic acids and 16- mercaptohexadecanoics base acid is 15-25:
0.05-0.5:5-10。
The 5A molecular sieve activations powder passes through modification, and its specific method of modifying is：First by the 5A molecules of fresh activation
Sieve activation powder is heated to 115-125 DEG C of insulation mixing, and adds trimethylolpropane trimethacrylate and pentaerythrite stearic acid
Ester, continue insulation mixing 0.5-1h, gained mixture at 115-125 DEG C and be transferred to sealing and standing 3-5h in -5 DEG C of environment, finally
Micro mist is made through micronizer, produces modified 5A molecular sieve activations powder.
The mass ratio of the 5A molecular sieve activations powder, trimethylolpropane trimethacrylate and pentaerythritol stearate is
1-5:0.1-1:0.1-1。
The beneficial effects of the invention are as follows：
(1) present invention in impregnation process with ethoxylated hydrogenated castor oil, hydrophobically modified hydroxyethyl-beta-schardinger dextrin and 5A
Molecular sieve activation powder is that adhesive is made in raw material, and the adhesive is good with bamboo fibre comixing compatibility, and energy Quick uniform penetrates into bamboo
In fiber, so as to play excellent adhesive property, and assign made bamboo fiberboard certain water resistance, and then it is swollen to reduce water suction
Swollen rate.
(2) present invention sprays adhesive to first uniformly spraying polymeric aluminum chlorides solution on bamboo fibre be glued in process again,
By being used cooperatively for aluminium polychloride, to strengthen the physical mechanics property of made bamboo fiberboard while expansion rate of water absorption is reduced
Can, so as to improve the synthesis performance of made bamboo fiberboard.
(3) present invention by adhesive and aluminium polychloride with the use of the hot pressing temperature for also reducing hot-briquetting modeling process
Degree, hot pressing pressure and hot pressing time, so as to reduce energy consumption；And the use feature of environmental protection of made bamboo fiberboard is strong, ensure that use
During formaldehyde zero release, to meet environmental requirement；The resource reutilization that bamboo -processing industry discards bamboo fibre is realized simultaneously,
Bamboo wood is set to play its value to greatest extent.
Embodiment：
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Specific embodiment is closed, the present invention is expanded on further.
Embodiment 1
(1) impregnation：First 2g ethoxylated hydrogenated castor oils are added in 45-55 DEG C of warm water, are heated to reflux state guarantor
15wt% dispersion liquid is made in temperature stirring, adds 20g hydrophobically modified hydroxyethyls-beta-schardinger dextrin and 3g5A molecular sieve activation powder,
Insulated and stirred under reflux state is continued at, until obtaining homogeneous paste, through naturally cooling to room temperature, produces adhesive；
(2) it is glued：The 150g bamboo fibres of length 15-20mm, water content less than 5wt% are fitted into glue mixing roller, utilized
Compressed air makes the bamboo fibre in roller be in suspended state, while using spray pattern that 5g10wt% aluminium polychloride is molten
Liquid is uniformly sprayed on bamboo fibre, then equally above-mentioned made 25g adhesive is sprayed on bamboo fibre with spray pattern, and mixing is equal
It is even, 20-25% most is reduced to water content after dry at 55-65 DEG C, produces blank；
(3) hot pressing：Above-mentioned made blank is quantitatively laid in hot pressing die, and it is hot-forming using heat pressing forming machines,
160-165 DEG C of hot pressing temperature, hot pressing pressure 6-6.5MPa, hot pressing time 8min are set, produce bamboo fiberboard.
The preparation of hydrophobically modified hydroxyethyl-beta-schardinger dextrin：Anhydrous second is added dropwise under stirring into 15g hydroxyethyl-β-cyclodextrins
Alcohol adds the phosphotungstic acids of 0.2g 12 and 5g16- mercaptohexadecanoics base acid up to being completely dissolved, and is heated to reflux state insulation and stirs
3h is mixed, gained mixture is concentrated under reduced pressure to reclaim ethanol, and gained solid is transferred into 50- when ethanol recovery reaches 90-95%
In 60 DEG C of baking ovens, constant weight is dried to, produces hydrophobically modified hydroxyethyl-beta-schardinger dextrin.
Embodiment 2
(1) impregnation：First 3g ethoxylated hydrogenated castor oils are added in 45-55 DEG C of warm water, are heated to reflux state guarantor
15wt% dispersion liquid is made in temperature stirring, adds 25g hydrophobically modified hydroxyethyls-beta-schardinger dextrin and 5g5A molecular sieve activation powder,
Insulated and stirred under reflux state is continued at, until obtaining homogeneous paste, through naturally cooling to room temperature, produces adhesive；
(2) it is glued：The 200g bamboo fibres of length 15-20mm, water content less than 5wt% are fitted into glue mixing roller, utilized
Compressed air makes the bamboo fibre in roller be in suspended state, while using spray pattern that 5g15wt% aluminium polychloride is molten
Liquid is uniformly sprayed on bamboo fibre, then equally above-mentioned made 25g adhesive is sprayed on bamboo fibre with spray pattern, and mixing is equal
It is even, 20-25% most is reduced to water content after dry at 55-65 DEG C, produces blank；
(3) hot pressing：Above-mentioned made blank is quantitatively laid in hot pressing die, and it is hot-forming using heat pressing forming machines,
160-165 DEG C of hot pressing temperature, hot pressing pressure 6-6.5MPa, hot pressing time 8min are set, produce bamboo fiberboard.
The preparation of hydrophobically modified hydroxyethyl-beta-schardinger dextrin：Anhydrous second is added dropwise under stirring into 25g hydroxyethyl-β-cyclodextrins
Alcohol adds the phosphotungstic acids of 0.5g 12 and 10g16- mercaptohexadecanoics base acid up to being completely dissolved, and is heated to reflux state insulation
4h is stirred, and gained mixture is concentrated under reduced pressure to reclaim ethanol, gained solid is transferred to when ethanol recovery reaches 90-95%
In 50-60 DEG C of baking oven, constant weight is dried to, produces hydrophobically modified hydroxyethyl-beta-schardinger dextrin.
Embodiment 3
(1) impregnation：First 2g ethoxylated hydrogenated castor oils are added in 45-55 DEG C of warm water, are heated to reflux state guarantor
15wt% dispersion liquid is made in temperature stirring, adds 20g hydrophobically modified hydroxyethyls-beta-schardinger dextrin and 3g5A molecular sieve activation powder,
Insulated and stirred under reflux state is continued at, until obtaining homogeneous paste, through naturally cooling to room temperature, produces adhesive；
(2) it is glued：The 150g bamboo fibres of length 15-20mm, water content less than 5wt% are fitted into glue mixing roller, utilized
Compressed air makes the bamboo fibre in roller be in suspended state, while using spray pattern that 5g10wt% aluminium polychloride is molten
Liquid is uniformly sprayed on bamboo fibre, then equally above-mentioned made 25g adhesive is sprayed on bamboo fibre with spray pattern, and mixing is equal
It is even, 20-25% most is reduced to water content after dry at 55-65 DEG C, produces blank；
(3) hot pressing：Above-mentioned made blank is quantitatively laid in hot pressing die, and it is hot-forming using heat pressing forming machines,
160-165 DEG C of hot pressing temperature, hot pressing pressure 6-6.5MPa, hot pressing time 8min are set, produce bamboo fiberboard.
The preparation of hydrophobically modified hydroxyethyl-beta-schardinger dextrin：Anhydrous second is added dropwise under stirring into 15g hydroxyethyl-β-cyclodextrins
Alcohol adds the phosphotungstic acids of 0.2g 12 and 5g16- mercaptohexadecanoics base acid up to being completely dissolved, and is heated to reflux state insulation and stirs
3h is mixed, gained mixture is concentrated under reduced pressure to reclaim ethanol, and gained solid is transferred into 50- when ethanol recovery reaches 90-95%
In 60 DEG C of baking ovens, constant weight is dried to, produces hydrophobically modified hydroxyethyl-beta-schardinger dextrin.
The modification of 5A molecular sieve activation powder：The 5g5A molecular sieve activation powder of fresh activation is first heated to 115-125 DEG C of guarantor
Temperature mixing, and 0.5g trimethylolpropane trimethacrylates and 0.3g pentaerythritol stearates are added, continue at 115-125 DEG C
Lower insulation mixing 1h, gained mixture are transferred to sealing and standing 5h in -5 DEG C of environment, micro mist most are made through micronizer afterwards, produces
Modified 5A molecular sieve activation powder.
Embodiment 4
(1) impregnation：First 3g ethoxylated hydrogenated castor oils are added in 45-55 DEG C of warm water, are heated to reflux state guarantor
15wt% dispersion liquid is made in temperature stirring, adds 25g hydrophobically modified hydroxyethyls-beta-schardinger dextrin and 5g5A molecular sieve activation powder,
Insulated and stirred under reflux state is continued at, until obtaining homogeneous paste, through naturally cooling to room temperature, produces adhesive；
(2) it is glued：The 200g bamboo fibres of length 15-20mm, water content less than 5wt% are fitted into glue mixing roller, utilized
Compressed air makes the bamboo fibre in roller be in suspended state, while using spray pattern that 5g15wt% aluminium polychloride is molten
Liquid is uniformly sprayed on bamboo fibre, then equally above-mentioned made 25g adhesive is sprayed on bamboo fibre with spray pattern, and mixing is equal
It is even, 20-25% most is reduced to water content after dry at 55-65 DEG C, produces blank；
(3) hot pressing：Above-mentioned made blank is quantitatively laid in hot pressing die, and it is hot-forming using heat pressing forming machines,
160-165 DEG C of hot pressing temperature, hot pressing pressure 6-6.5MPa, hot pressing time 8min are set, produce bamboo fiberboard.
The preparation of hydrophobically modified hydroxyethyl-beta-schardinger dextrin：Anhydrous second is added dropwise under stirring into 25g hydroxyethyl-β-cyclodextrins
Alcohol adds the phosphotungstic acids of 0.5g 12 and 10g16- mercaptohexadecanoics base acid up to being completely dissolved, and is heated to reflux state insulation
4h is stirred, and gained mixture is concentrated under reduced pressure to reclaim ethanol, gained solid is transferred to when ethanol recovery reaches 90-95%
In 50-60 DEG C of baking oven, constant weight is dried to, produces hydrophobically modified hydroxyethyl-beta-schardinger dextrin.
The modification of 5A molecular sieve activation powder：The 5g5A molecular sieve activation powder of fresh activation is first heated to 115-125 DEG C of guarantor
Temperature mixing, and 1g trimethylolpropane trimethacrylates and 0.5g pentaerythritol stearates are added, continue at 115-125 DEG C
Insulation mixing 1h, gained mixture are transferred to sealing and standing 5h in -5 DEG C of environment, micro mist most are made through micronizer afterwards, produces and changes
Property 5A molecular sieve activation powder.
Reference examples 1
(1) impregnation：First 2g ethoxylated hydrogenated castor oils are added in 45-55 DEG C of warm water, are heated to reflux state guarantor
15wt% dispersion liquid is made in temperature stirring, adds 20g hydrophobically modified hydroxyethyls-beta-schardinger dextrin and 3g5A molecular sieve activation powder,
Insulated and stirred under reflux state is continued at, until obtaining homogeneous paste, through naturally cooling to room temperature, produces adhesive；
(2) it is glued：The 150g bamboo fibres of length 15-20mm, water content less than 5wt% are fitted into glue mixing roller, utilized
Compressed air makes the bamboo fibre in roller be in suspended state, while is sprayed above-mentioned made 25g adhesive using spray pattern
In on bamboo fibre, it is well mixed, is most reduced to 20-25% to water content after dry at 55-65 DEG C, produces blank；
(3) hot pressing：Above-mentioned made blank is quantitatively laid in hot pressing die, and it is hot-forming using heat pressing forming machines,
160-165 DEG C of hot pressing temperature, hot pressing pressure 6-6.5MPa, hot pressing time 8min are set, produce bamboo fiberboard.
The preparation of hydrophobically modified hydroxyethyl-beta-schardinger dextrin：Anhydrous second is added dropwise under stirring into 15g hydroxyethyl-β-cyclodextrins
Alcohol adds the phosphotungstic acids of 0.2g 12 and 5g16- mercaptohexadecanoics base acid up to being completely dissolved, and is heated to reflux state insulation and stirs
3h is mixed, gained mixture is concentrated under reduced pressure to reclaim ethanol, and gained solid is transferred into 50- when ethanol recovery reaches 90-95%
In 60 DEG C of baking ovens, constant weight is dried to, produces hydrophobically modified hydroxyethyl-beta-schardinger dextrin.
Reference examples 2
(1) impregnation：First 2g ethoxylated hydrogenated castor oils are added in 45-55 DEG C of warm water, are heated to reflux state guarantor
15wt% dispersion liquid is made in temperature stirring, adds 20g hydrophobically modified hydroxyethyls-beta-schardinger dextrin, continues under reflux state and protect
Temperature stirring, until obtaining homogeneous paste, through naturally cooling to room temperature, produces adhesive；
(2) it is glued：The 150g bamboo fibres of length 15-20mm, water content less than 5wt% are fitted into glue mixing roller, utilized
Compressed air makes the bamboo fibre in roller be in suspended state, while using spray pattern that 5g10wt% aluminium polychloride is molten
Liquid is uniformly sprayed on bamboo fibre, then equally above-mentioned made 25g adhesive is sprayed on bamboo fibre with spray pattern, and mixing is equal
It is even, 20-25% most is reduced to water content after dry at 55-65 DEG C, produces blank；
(3) hot pressing：Above-mentioned made blank is quantitatively laid in hot pressing die, and it is hot-forming using heat pressing forming machines,
160-165 DEG C of hot pressing temperature, hot pressing pressure 6-6.5MPa, hot pressing time 8min are set, produce bamboo fiberboard.
The preparation of hydrophobically modified hydroxyethyl-beta-schardinger dextrin：Anhydrous second is added dropwise under stirring into 15g hydroxyethyl-β-cyclodextrins
Alcohol adds the phosphotungstic acids of 0.2g 12 and 5g16- mercaptohexadecanoics base acid up to being completely dissolved, and is heated to reflux state insulation and stirs
3h is mixed, gained mixture is concentrated under reduced pressure to reclaim ethanol, and gained solid is transferred into 50- when ethanol recovery reaches 90-95%
In 60 DEG C of baking ovens, constant weight is dried to, produces hydrophobically modified hydroxyethyl-beta-schardinger dextrin.
Reference examples 3
(1) impregnation：First 2g ethoxylated hydrogenated castor oils are added in 45-55 DEG C of warm water, are heated to reflux state guarantor
15wt% dispersion liquid is made in temperature stirring, adds 20g hydroxyethyl-β-cyclodextrins and 3g5A molecular sieve activation powder, continues at back
Insulated and stirred under stream mode, until obtaining homogeneous paste, through naturally cooling to room temperature, produce adhesive；
(2) it is glued：The 150g bamboo fibres of length 15-20mm, water content less than 5wt% are fitted into glue mixing roller, utilized
Compressed air makes the bamboo fibre in roller be in suspended state, while using spray pattern that 5g10wt% aluminium polychloride is molten
Liquid is uniformly sprayed on bamboo fibre, then equally above-mentioned made 25g adhesive is sprayed on bamboo fibre with spray pattern, and mixing is equal
It is even, 20-25% most is reduced to water content after dry at 55-65 DEG C, produces blank；
(3) hot pressing：Above-mentioned made blank is quantitatively laid in hot pressing die, and it is hot-forming using heat pressing forming machines,
160-165 DEG C of hot pressing temperature, hot pressing pressure 6-6.5MPa, hot pressing time 8min are set, produce bamboo fiberboard.
Reference examples 4
Glue in reference examples 3 is replaced with 1 made modified soy protein adhesive of patent CN200710164450.4 embodiments
Stick.
Embodiment 5
Embodiment 1-4, the made stack piles of reference examples 1-4 bamboo fiberboard are used by GB/T17657-2013 respectively
Performance test, test result are as shown in table 1.
The performance test result of 1 bamboo fiberboard of the present invention of table
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (5)
1. a kind of bamboo fiberboard processing technology of low expansion rate of water absorption, it is characterised in that including following process：
(1) impregnation：First ethoxylated hydrogenated castor oil is added in 45-55 DEG C of warm water, is heated to reflux state insulated and stirred
5-15wt% dispersion liquid is made, adds hydrophobically modified hydroxyethyl-beta-schardinger dextrin and 5A molecular sieve activation powder, continues at backflow
Insulated and stirred under state, until obtaining homogeneous paste, through naturally cooling to room temperature, produce adhesive；
(2) it is glued：The bamboo fibre of length 15-20mm, water content less than 5wt% is fitted into glue mixing roller, utilizes compressed air
The bamboo fibre in roller is in suspended state, while uniformly sprayed 5-15wt% polymeric aluminum chlorides solution using spray pattern
Spill on bamboo fibre, then equally above-mentioned institute's preparing adhesive be sprayed on bamboo fibre with spray pattern, be well mixed, most after
Dried at 55-65 DEG C to water content and be reduced to 20-25%, produce blank；
(3) hot pressing：Above-mentioned made blank is quantitatively laid in hot pressing die, and it is hot-forming using heat pressing forming machines, set
155-165 DEG C of hot pressing temperature, hot pressing pressure 6-6.5MPa, hot pressing time 5-8min, produce bamboo fiberboard.
2. the bamboo fiberboard processing technology of low expansion rate of water absorption according to claim 1, it is characterised in that：The ethyoxyl
The mass ratio for changing rilanit special, hydrophobically modified hydroxyethyl-beta-schardinger dextrin and 5A molecular sieve activation powder is 1-5:15-25:1-5.
3. the bamboo fiberboard processing technology of low expansion rate of water absorption according to claim 1, it is characterised in that：The bamboo is fine
Dimension, polymeric aluminum chlorides solution, the mass ratio of adhesive are 100-200:1-5:15-25.
4. the bamboo fiberboard processing technology of low expansion rate of water absorption according to claim 1, it is characterised in that：It is described hydrophobic to change
Property hydroxyethyl-β-cyclodextrin be by hydroxyethyl-β-cyclodextrin it is hydrophobically modified be made, its specific preparation method is：Under stirring to
Absolute ethyl alcohol is added dropwise until being completely dissolved in hydroxyethyl-β-cyclodextrin, and adds 12 phosphotungstic acids and 16- mercaptohexadecanoic bases
Acid, reflux state insulated and stirred 2-5h is heated to, gained mixture is concentrated under reduced pressure to reclaim ethanol, treats that ethanol recovery reaches
Gained solid is transferred in 50-60 DEG C of baking oven during 90-95%, is dried to constant weight, produces hydrophobically modified hydroxyethyl-beta-schardinger dextrin.
5. the bamboo fiberboard processing technology of low expansion rate of water absorption according to claim 4, it is characterised in that：The hydroxyl second
The mass ratio of group-beta-cyclodextrin, 12 phosphotungstic acids and 16- mercaptohexadecanoics base acid is 15-25:0.05-0.5:5-10.
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| CN111851856A (en) * | 2020-07-29 | 2020-10-30 | 襄阳市政建设集团有限公司 | Manufacturing process for preparing foam bamboo fiberboard from waste concrete blocks |
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| CN101186047A (en) * | 2007-12-11 | 2008-05-28 | 浙江大学 | Method for using modified soy protein tackiness agent to prepare bamboo fiberboard |
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| CN101186047A (en) * | 2007-12-11 | 2008-05-28 | 浙江大学 | Method for using modified soy protein tackiness agent to prepare bamboo fiberboard |
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Effective date of registration: 20200605 Address after: Fengrun Zhen Zhang Liang Ge Zhuang Cun, Fengrun District, Tangshan City, Hebei Province 063000 Applicant after: Tangshan Runfeng District oushilong Decoration Material Co.,Ltd. Address before: Mount Huangshan Road, Shushan District of Hefei City Tahiti 230000 Anhui Province modern city building 66 room 1817 Applicant before: Li Ju Li |
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Correction item: Patentee|Address Correct: Tangshan Fengrun Ou Decoration Material Co., Ltd|063000 Feng run Zhen Zhang Liang Ge Zhuang Cun, Fengrun District, Tangshan City, Hebei Province False: Tangshan Runfeng Ou Decoration Material Co., Ltd|063000 Feng run Zhen Zhang Liang Ge Zhuang Cun, Fengrun District, Tangshan City, Hebei Province Number: 26-02 Volume: 36 |
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Correction item: Patentee Correct: Tangshan Fengrun oushilong Decoration Material Co.,Ltd. False: Tangshan Runfeng District oushilong Decoration Material Co.,Ltd. Number: 27-02 Page: The title page Volume: 36 Correction item: Patentee Correct: Tangshan Fengrun oushilong Decoration Material Co.,Ltd. False: Tangshan Runfeng District oushilong Decoration Material Co.,Ltd. Number: 27-02 Volume: 36 |