CN109227859A - A kind of manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel - Google Patents
A kind of manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel Download PDFInfo
- Publication number
- CN109227859A CN109227859A CN201811215995.8A CN201811215995A CN109227859A CN 109227859 A CN109227859 A CN 109227859A CN 201811215995 A CN201811215995 A CN 201811215995A CN 109227859 A CN109227859 A CN 109227859A
- Authority
- CN
- China
- Prior art keywords
- cotton stalk
- manufacturing
- based panel
- fineness
- formaldehyde free
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 229920000742 Cotton Polymers 0.000 title claims abstract description 122
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 109
- 239000002023 wood Substances 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 239000003292 glue Substances 0.000 claims abstract description 40
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 28
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 238000012805 post-processing Methods 0.000 claims abstract description 6
- 238000000748 compression moulding Methods 0.000 claims abstract description 5
- 241000219146 Gossypium Species 0.000 claims description 116
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 20
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 15
- 239000010410 layer Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 10
- 238000007731 hot pressing Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 239000002344 surface layer Substances 0.000 claims description 5
- 239000002028 Biomass Substances 0.000 claims description 4
- 229920002261 Corn starch Polymers 0.000 claims description 4
- 240000003183 Manihot esculenta Species 0.000 claims description 4
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 claims description 4
- 239000008120 corn starch Substances 0.000 claims description 4
- 229940099112 cornstarch Drugs 0.000 claims description 4
- 235000012054 meals Nutrition 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- 241000209140 Triticum Species 0.000 claims description 3
- 235000021307 Triticum Nutrition 0.000 claims description 3
- 235000013312 flour Nutrition 0.000 claims description 3
- 239000012792 core layer Substances 0.000 claims description 2
- 229920001592 potato starch Polymers 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 150000005846 sugar alcohols Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 3
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 26
- 238000005507 spraying Methods 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 235000011187 glycerol Nutrition 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- -1 glued board Substances 0.000 description 5
- 230000036541 health Effects 0.000 description 5
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 4
- 229920006389 polyphenyl polymer Polymers 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical group CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 description 3
- 239000004115 Sodium Silicate Substances 0.000 description 3
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 3
- 235000012241 calcium silicate Nutrition 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 150000004702 methyl esters Chemical class 0.000 description 3
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- 235000019795 sodium metasilicate Nutrition 0.000 description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 3
- 229910052911 sodium silicate Inorganic materials 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000004260 weight control Methods 0.000 description 3
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical group COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 235000010980 cellulose Nutrition 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- POCFBDFTJMJWLG-UHFFFAOYSA-N dihydrosinapic acid methyl ester Natural products COC(=O)CCC1=CC(OC)=C(O)C(OC)=C1 POCFBDFTJMJWLG-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- XYIBRDXRRQCHLP-UHFFFAOYSA-N ethyl acetoacetate Chemical compound CCOC(=O)CC(C)=O XYIBRDXRRQCHLP-UHFFFAOYSA-N 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 125000002462 isocyano group Chemical group *[N+]#[C-] 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229960004063 propylene glycol Drugs 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- 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
- B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
-
- 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
- B27N3/007—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and at least partly composed of recycled material
-
- 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
- B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/64—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63
- C08G18/6415—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63 having nitrogen
- C08G18/6446—Proteins and derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/64—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63
- C08G18/6484—Polysaccharides and derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The present invention provides a kind of manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel, it is characterized by: be crushed to 10~60 mesh fineness using cotton stalk as raw material, 2%~8% polymeric MDI glue that weight is the cotton stalk is added and weight is that wood-based plate is made in the agitated mixing of 2%~5% formaldehydeless modifying agent, compression moulding, the post-processing of the cotton stalk.Resin added is small in the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel of the present invention, and finished synthetic's plate obtained is free of formaldehyde.
Description
Technical field
The present invention relates to Formaldehyde Free Wood-based Panel technical field, in particular to it is a kind of using cotton stalk be raw material it is formaldehydeless
The manufacturing method of wood-based plate.
Background technique
Conventional artificial's plate is made using timber of raw material, such as glued board, fiberboard, particieboard, core-board, orientation knot
Structure plate etc..With economic development, people increase severely to timber demand, are fallen trees on a large scale so that ecological environment is seriously broken
It is bad, also timber resources is caused to fall sharply, influences the raw material sources of wood-based plate.For this purpose, being replaced by seeking other natural fiber materials
It is a kind of development trend for timber manufacture wood-based plate.Cotton is the crops that planting range is extremely wide in the world, big in China
There are a plantation in some areas, and after general cotton picking, stalk often on-site incineration or discarded partially smashes returning to the field, but due to
It is relatively difficult to rot in a short time, often under the influence of season plant.Currently, also there is technology to attempt to manufacture cotton stalk instead of timber
Wood-based plate still when manufacturing this kind of wood-based plate, needs to urinate aldehyde glue or phenol glue or directlys adopt by formaldehyde and other bondings
The glue of agent synthesis., with the wood-based plate of the adhesive glue manufacture containing formaldehyde, the meeting release formaldehyde within the service life of plate influences for these
Human health.In addition, big using this kind of resin added needed for wood-based plate manufacturing process of the adhesive glue containing formaldehyde.
Summary of the invention
The present invention be to solve the above-mentioned problems and carry out, and it is an object of the present invention to provide it is a kind of using cotton stalk be raw material,
The manufacturing method of the small Formaldehyde Free Wood-based Panel of resin added.
The manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel provided by the invention, has a feature in that with cotton stem
Stalk is that raw material is crushed to 10~60 mesh fineness, and addition weight is 2%~8% polymeric MDI glue of cotton stalk and weight is
Wood-based plate is made in the agitated mixing of the formaldehydeless modifying agent of the 2%~5% of cotton stalk, compression moulding, post-processing.
In the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel provided by the invention, there can also be such spy
Sign: where cotton stalk preferably is selected from the cotton stalk that Wuhu area produces.
In the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel provided by the invention, there can also be such spy
Sign: where polymeric MDI glue is prepared by the substance comprising following mass percent:
In the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel provided by the invention, there can also be such spy
Sign: where polyalcohol preferably is selected from one or several any mixture of ethylene glycol, 1,2-PD, glycerol.
In the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel provided by the invention, there can also be such spy
Sign: where components of biomass preferably is selected from soy meal, wheat flour, cornstarch, tapioca, any one in potato starch
Or several mixture.
In the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel provided by the invention, there can also be such spy
Sign: where formaldehydeless modifying agent is prepared by the substance comprising following mass percent:
Acrylate preferably is selected from methyl acrylate, ethyl acrylate, butyl acrylate, Isooctyl acrylate monomer, metering system
Any one or a few mixture in acetoacetic ester,
Alkali metal filler material preferably is selected from the mixture of calcium silicates, any one or two kinds in sodium metasilicate,
Nano-oxide is the mixture of one or both of nano zine oxide, nano-titanium dioxide.
In the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel provided by the invention, there can also be such spy
Sign: where cotton stalk first passes through steps of processing before being stirred:
Cotton stalk after collection is carried out coarse crushing by step 1-1；
Cotton stalk after coarse crushing is dried to moisture content 7%~12% step 1-2；
Cotton stalk after drying is carried out fine powder again after selection by winnowing and is broken to 10~60 mesh fineness sizes by step 1-3；
Step 1-4, then will be finely divided after cotton stalk sieve, the cotton stalk of different fineness range is sent into not
Same feeding warehouse.
In the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel provided by the invention, there can also be such spy
Sign: where the cotton stalk in different feeding warehouses adds polymeric MDI glue and formaldehydeless modification according to corresponding fineness
Agent, and be sent into different blenders and be stirred, then the different mixtures after stirring are greater than surface layer fineness according to sandwich layer fineness
Successively layering is paved into slab.
In the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel provided by the invention, there can also be such spy
Sign: where cotton stalk is 10~40 mesh fineness, 40~60 mesh fineness by fineness screening, by the cotton stem of 10~40 mesh fineness
In stalk add weight be cotton stalk dry weight 2%~4% polymeric MDI glue and weight be cotton stalk dry weight 2%~
3% formaldehydeless modifying agent is stirred as core layer raw material, and it is cotton that weight will be added in the cotton stalk of 40~60 mesh fineness
The polymeric MDI glue and weight of the dry weight 3%~8% of scape stalk are the formaldehydeless modification of the dry weight 3%~5% of cotton stalk
Agent is stirred as face stock.
In the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel provided by the invention, there can also be such spy
Sign: where compression moulding is the following steps are included: step 2-1, in room temperature, 250~500kN/m2Drum-type is used under pressure condition
Preformer carries out continuous precompressed；Step 2-2, slab after precompressed are sent into layering hot press, 150~180 DEG C of temperature, 2400~
3500kN/m22~8min of hot pressing is solidified into hair plates under conditions of pressure.
Action and effect of the invention:
The manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel of the invention uses cotton stalk for raw material, is added formaldehydeless
Modifying agent and polymeric MDI glue increase slab in the pre-molding intensity of normal-temperature, continuous precompressed mode are easy to use to produce,
It improves efficiency.
The manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel of the invention, make full use of discarded in cotton crop it is useless
Stem is turned waste into wealth, and the modifying agent and polymeric MDI glue that add all are free of formaldehyde, and there is no release wood-based plate obtained in this way
Put the problem of formaldehyde is detrimental to health.
Cotton stalk is by coarse crushing and finely divided, and strict control its moisture content, sufficiently crushes and obtains being suitable for fineness,
Substantially increase the bonding area of stalk and formaldehydeless modifying agent and polymeric MDI glue.
Smashed cotton stalk is glued according to different fineness, then is layered and mats formation, such mode makes nothing
The dosage of modified formaldehyde agent and polymeric MDI glue also can reach adhesion strength requirement well below usual amounts.
Methyl diphenylene diisocyanate and polyphenyl polymethylene polyisocyanates are under hot pressing temperature in polymeric MDI glue
It crosslinks and reacts with ingredients such as cotton stalk lignin, celluloses, so that slab more preferably forms.It is used in polymeric MDI glue
The components of biomass such as soy meal are crosslinked with polyvinyl alcohol in formaldehydeless modifying agent to react, and components of biomass is green non-poisonous, changes
Kind pasting effect, plybonding effect.Glycerine monofatty ester helps to improve the mobility of polymeric MDI glue, facilitates polymeric MDI glue
It stirs evenly and comes into full contact with when being stirred with cotton stalk.Acrylic acid and polymeric MDI glue in formaldehydeless modifying agent is in warm
The reaction of moisture in isocyano and cotton stalk formed at a temperature of pressure forms reticular structure and improves intensity, reduces people
Make plate expansion rate of water absorption.Alkali metal filler material is used in formaldehydeless modifying agent, increases the intensity of wood-based plate, adjusts reaction acid
Basicity improves reaction efficiency.Nano-oxide increases mixture mechanics, thermal property at high temperature, improves plybonding effect, makes it
With lasting bonding force, in addition, nano-oxide may also function as the effect of bacteria mildew-proof, help to improve wood-based plate uses the longevity
Life.
The manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel of the invention combines the self-characteristic of cotton stalk specific
Technical process keep finished synthetic's plate close structure careful, various aspects mechanical strength reaches can using precompressed and hot pressing mode
It matches in excellence or beauty with the wood-based plate of timber is used, tool has been widely used.
Detailed description of the invention
Fig. 1 is the process flow chart of the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel in the embodiment of the present invention.
Specific embodiment
It is real below in order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention
Example is applied to be specifically addressed the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel of the invention.
Cotton stalk in Examples 1 to 3 is all made of the cotton stalk that Wuhu area produces.
<embodiment 1>
Collected cotton stalk is carried out coarse crushing by step 1, and then compression is packed into firm position storage.The cotton stem of coarse crushing
Stalk is dried through roller dryer, makes its moisture content in 9%~17% range.Cotton stalk after drying is using wind
Enter slimer after the impurity such as the equipment such as choosing removal iron, stone and is crushed to 10~60 mesh fineness sizes.It is carried out by fineness size
Cotton stalk is sorted, and removes dust.Cotton stalk is sieved by fineness and is sent for 10~40 mesh fineness, 40~60 mesh fineness correspondence
Enter sandwich layer feed bin, surface layer feed bin.
Step 2 is weighed to crushing cotton stalk in different feed bins and passes through moisture tester and measures its moisture content,
It is respectively fed in different blenders, glue spraying is carried out using PLC control glue-spraying device, according to corresponding Weight control glue spraying amount,
The polymeric MDI glue for the dry weight 2% that weight is cotton stalk is added in the cotton stalk of 10~40 mesh fineness of control, weight is cotton stem
The formaldehydeless modifying agent of the dry weight 3% of stalk；The dry weight that weight is cotton stalk is added in the cotton stalk for controlling 30~50 mesh fineness
The formaldehydeless modifying agent of 3% polymeric MDI glue, the dry weight 5% that weight is cotton stalk, respectively in different blenders sufficiently
It is stirred, is thoroughly mixed in different blenders respectively.
Polymeric MDI glue used in step 2 is prepared by the following substance measured by mass percentage: diphenyl
Methane diisocyanate 30%；Polyphenyl polymethylene polyisocyanic acid 50%；Glycerine monofatty ester 13%；Ethylene glycol 2.7%；
Glycerol 4%；Cornstarch 0.3%.
Formaldehydeless modifying agent used in step 2 is prepared by the following substance measured by mass percentage: propylene
Sour methyl esters 30%；Ethyl acrylate 16%；Butyl acrylate 36%；Isooctyl acrylate monomer 8%；Polyvinyl alcohol 8%；Calcium silicates
1%；Sodium metasilicate 0.5%；Nano zine oxide 0.5%.
Step 3, the mixing material of the different fineness after stirring, which is sent by conveyer to different spreading machines, carries out place Min layers
Dress.Material point multilayer in the form of cutting optimal, sandwich layer, upper layer is mixed in cotton stalk to mat formation, in rubber load-bearing conveyer belt
Upper formation slab.
Step 4, in room temperature, 250kN/m2Continuous precompressed is carried out using drum-type preformer under pressure condition, is formed more steady
Determine state slab.Slab after precompressed is sent into layering hot press, in 180 DEG C of temperature, 3500kN/m2Hot pressing is solid under conditions of pressure
It is melted into hair plates.
Step 5, by hair plates after molding through postprocessing working procedures such as sawing, cooling, health, sandings to get the artificial of finished product
Plate.
<embodiment 2>
Collected cotton stalk is carried out coarse crushing by step 1, and then compression is packed into firm position storage.The cotton stem of coarse crushing
Stalk is dried through roller dryer, makes its moisture content in 9%~17% range.Cotton stalk after drying is using wind
Enter slimer after the impurity such as the equipment such as choosing removal iron, stone and is crushed to 10~60 mesh fineness sizes.Cotton stalk presses fineness
Screening is 10~40 mesh fineness, the corresponding feeding sandwich layer feed bin, surface layer feed bin of 40~60 mesh fineness.
Step 2 is weighed to crushing cotton stalk in different feed bins and passes through moisture tester and measures its moisture content,
It is respectively fed in different blenders, glue spraying is carried out using PLC control glue-spraying device, according to corresponding Weight control glue spraying amount,
The polymeric MDI glue for the dry weight 4% that weight is cotton stalk is added in the cotton stalk of 10~40 mesh fineness of control, weight is cotton stem
The formaldehydeless modifying agent of the dry weight 2% of stalk；The dry weight that weight is cotton stalk is added in the cotton stalk for controlling 30~50 mesh fineness
The formaldehydeless modifying agent of 6% polymeric MDI glue, the dry weight 4% that weight is cotton stalk, respectively in different blenders sufficiently
It is stirred, is thoroughly mixed in different blenders respectively.
Polymeric MDI glue used in step 2 is prepared by the following substance measured by mass percentage: diphenyl
Methane diisocyanate 32%；Polyphenyl polymethylene polyisocyanic acid 29%；Glycerine monofatty ester 9%；Ethylene glycol 13%；It is sweet
Oil 12%；Soy meal 2%, wheat flour 1%, cornstarch 1%；Tapioca 1%.
Formaldehydeless modifying agent used in step 2 is prepared by the following substance measured by mass percentage: propylene
Sour methyl esters 25%；Ethyl acrylate 10%；Butyl acrylate 18%；Ethyl methacrylate 12%；Polyvinyl alcohol 20%；Silicic acid
Calcium 5%；Sodium metasilicate 5%；Nano zine oxide 2.5%；Nano-titanium dioxide 2.5%.
Step 3, the mixing material of the different fineness after stirring, which is sent by conveyer to different spreading machines, carries out place Min layers
Dress.Material point multilayer in the form of cutting optimal, sandwich layer, upper layer is mixed in cotton stalk to mat formation, in rubber load-bearing conveyer belt
Upper formation slab.
Step 4, in room temperature, 480kN/m2Continuous precompressed is carried out using drum-type preformer under pressure condition, is formed more steady
Determine state slab.Slab after precompressed is sent into layering hot press, in 160 DEG C of temperature, 2500kN/m2Hot pressing is solid under conditions of pressure
It is melted into hair plates.
Step 5, by hair plates after molding through postprocessing working procedures such as sawing, cooling, health, sandings to get the artificial of finished product
Plate.
<embodiment 3>
Collected cotton stalk is carried out coarse crushing by step 1, and then compression is packed into firm position storage.The cotton stem of coarse crushing
Stalk is dried through roller dryer, makes its moisture content in 9%~17% range.Cotton stalk after drying is using wind
Enter slimer after the impurity such as the equipment such as choosing removal iron, stone and is crushed to 10~60 mesh fineness sizes.Cotton stalk presses fineness
Screening is 10~40 mesh fineness, the corresponding feeding sandwich layer feed bin, surface layer feed bin of 40~60 mesh fineness.
Step 2 is weighed to crushing cotton stalk in different feed bins and passes through moisture tester and measures its moisture content,
It is respectively fed in different blenders, glue spraying is carried out using PLC control glue-spraying device, according to corresponding Weight control glue spraying amount,
The polymeric MDI glue for the dry weight 3% that weight is cotton stalk is added in the cotton stalk of 10~40 mesh fineness of control, weight is cotton stem
The formaldehydeless modifying agent of the dry weight 2% of stalk；The dry weight that weight is cotton stalk is added in the cotton stalk for controlling 30~50 mesh fineness
The formaldehydeless modifying agent of 8% polymeric MDI glue, the dry weight 3% that weight is cotton stalk, respectively in different blenders sufficiently
It is stirred, is thoroughly mixed in different blenders respectively.
Polymeric MDI glue used in step 2 is prepared by the following substance measured by mass percentage: diphenyl
Methane diisocyanate 60%；Polyphenyl polymethylene polyisocyanic acid 28%；Glycerine monofatty ester 6%；Ethylene glycol 3%；1,
2- propylene glycol 1.6%；Glycerol 1.4%；Tapioca 1%.
Formaldehydeless modifying agent used in step 2 is prepared by the following substance measured by mass percentage: propylene
Sour methyl esters 12%；Ethyl acrylate 32%；Isooctyl acrylate monomer 24%；Polyvinyl alcohol 30%；Calcium silicates 1%；Nano zine oxide
1%.
Step 3, the mixing material of the different fineness after stirring, which is sent by conveyer to different spreading machines, carries out place Min layers
Dress.Material point multilayer in the form of cutting optimal, sandwich layer, upper layer is mixed in cotton stalk to mat formation, in rubber load-bearing conveyer belt
Upper formation slab.
Step 4, in room temperature, 500kN/m2Continuous precompressed is carried out using drum-type preformer under pressure condition, is formed more steady
Determine state slab.Slab after precompressed is sent into layering hot press, in 150 DEG C of temperature, 2400kN/m2Hot pressing is solid under conditions of pressure
It is melted into hair plates.
Step 5, by hair plates after molding through postprocessing working procedures such as sawing, cooling, health, sandings to get the artificial of finished product
Plate.
Finished synthetic's plate made from Examples 1 to 3 is tested for the property, test result is as follows table:
Above embodiment is concrete case of the invention, the protection scope being not intended to limit the invention.
Claims (10)
1. a kind of manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel, it is characterised in that: be crushed to by raw material of cotton stalk
10~60 mesh fineness, addition weight is 2%~8% polymeric MDI glue of the cotton stalk and weight is the cotton stem
Wood-based plate is made in the agitated mixing of the formaldehydeless modifying agent of the 2%~5% of stalk, compression moulding, post-processing.
2. the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel according to claim 1, it is characterised in that:
Wherein, the cotton stalk preferably is selected from the cotton stalk that Wuhu area produces.
3. the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel according to claim 1, it is characterised in that:
Wherein, the polymeric MDI glue is prepared by the substance comprising following mass percent:
4. the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel according to claim 3, it is characterised in that:
Wherein, the polyalcohol preferably is selected from one or several any mixture of ethylene glycol, 1,2-PD, glycerol.
5. the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel according to claim 3, it is characterised in that:
Wherein, the components of biomass preferably is selected from soy meal, wheat flour, cornstarch, tapioca, appointing in potato starch
It anticipates one or several mixture.
6. the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel according to claim 1, it is characterised in that:
Wherein, the formaldehydeless modifying agent is prepared by the substance comprising following mass percent:
7. the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel according to claim 1, it is characterised in that:
Wherein, the cotton stalk first passes through steps of processing before being stirred:
The cotton stalk after collection is carried out coarse crushing by step 1-1；
The cotton stalk after coarse crushing is dried to moisture content 7%~12% step 1-2；
The cotton stalk after drying is carried out fine powder again after selection by winnowing and is broken to 10~60 mesh fineness sizes by step 1-3；
Step 1-4, then will be finely divided after the cotton stalk sieve, the cotton stalk of different fineness range is sent
Enter different feeding warehouses.
8. the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel according to claim 7, it is characterised in that:
Wherein, the cotton stalk in different feeding warehouses adds the polymeric MDI glue and institute according to corresponding fineness
Formaldehydeless modifying agent is stated, and is sent into different blenders and is stirred, then by the different mixtures after stirring according to sandwich layer fineness
It is successively layered greater than surface layer fineness and is paved into slab.
9. the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel according to claim 8, it is characterised in that:
Wherein, the cotton stalk by fineness screening be 10~40 mesh fineness, 40~60 mesh fineness,
It will be added in the cotton stalk of 10~40 mesh fineness described in the dry weight 2%~4% that weight is the cotton stalk
Polymeric MDI glue and weight are the formaldehydeless modifying agent of the dry weight 2%~3% of the cotton stalk, are stirred conduct
Core layer raw material,
It will be added in the cotton stalk of 40~60 mesh fineness described in the dry weight 3%~8% that weight is the cotton stalk
Polymeric MDI glue and weight are the formaldehydeless modifying agent of the dry weight 3%~5% of the cotton stalk, are stirred conduct
Face stock.
10. the manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel according to claim 1, it is characterised in that:
Wherein, the compression moulding the following steps are included:
Step 2-1, in room temperature, 250~500kN/m2Continuous precompressed is carried out using drum-type preformer under pressure condition；
Step 2-2, the slab after precompressed is sent into layering hot press, in 150~180 DEG C of temperature, 2400~3500kN/m2Pressure
Under the conditions of 2~8min of hot pressing be solidified into hair plates.
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| CN115674393A (en) * | 2022-11-08 | 2023-02-03 | 上海康拜环保设备有限公司 | Formaldehyde-free high-strength cotton stalk particle board and manufacturing method thereof |
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