CN105464335A - Impregnated paper finished OSB composite floor and preparation method - Google Patents
Impregnated paper finished OSB composite floor and preparation method Download PDFInfo
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- CN105464335A CN105464335A CN201510994406.0A CN201510994406A CN105464335A CN 105464335 A CN105464335 A CN 105464335A CN 201510994406 A CN201510994406 A CN 201510994406A CN 105464335 A CN105464335 A CN 105464335A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
- E04F15/102—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials of fibrous or chipped materials, e.g. bonded with synthetic resins
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- 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
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08G12/34—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds and acyclic or carbocyclic compounds
- C08G12/36—Ureas; Thioureas
- C08G12/38—Ureas; Thioureas and melamines
-
- 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
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/40—Chemically modified polycondensates
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- 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
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/46—Block or graft polymers prepared by polycondensation of aldehydes or ketones on to macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C09J161/32—Modified amine-aldehyde condensates
Abstract
The invention relates to a plate, in particular to an impregnated paper finished OSB composite floor and a preparation method. The impregnated paper finished OSB composite floor sequentially comprises an OSB base material layer, a veneer layer, a buffer paper layer, a balance paper layer and a sprayed decorative paper layer from bottom to top. The longitudinal static bending intensity of the OSB base material layer is larger than or equal to 50 MPa, and the water absorption thickness swelling rate of the OSB base material layer is smaller than or equal to 12%. The veneer layer is a poplar bleached veneer, and the thickness ranges from 0.6 mm to 1.2 mm. The buffer paper layer is impregnated kraft paper with the thickness of 0.4 mm to 0.6 mm, and the glue quantity is 80% or above. The weight of the balance paper layer ranges from 70 g to 80 g, and the glue quantity ranges from 100% to 120%. The weight of the sprayed decorative paper ranges from 70 g to 80 g, and the glue quantity ranges from 100% to 120%. The impregnated paper finished OSB composite floor has high environment friendliness, stability and water resistance.
Description
Technical field
The present invention relates to a kind of sheet material, especially a kind of impregnated paper facing OSB composite floor board and preparation method.
Background technology
Floor is absolutely necessary material in interior decoration, and current consolidated floor portion in Floor Industry accounts for about 70%, has the very large market share.And consolidated floor generally adopts urea-formaldehyde resin adhesive to be adhesive, its water resistance is poor, and thickness swelling rate is higher.Nowadays consolidated floor market quality is very different, and Form aldehyde release limitation is generally E1 level, even E2 level, air quality indoor after having a strong impact on finishing, and present shortage of resources, and inherent quality is progressively reducing, and makes customer there is doubt.Oriented wood chipboard (OSB) is with natural poplar for raw material, and its Form aldehyde release limitation reaches without aldehyde level.OSB has the advantage that HDF does not have simultaneously, such as: high-environmental, high-bearing capacity, high stability etc.Take OSB as the General Requirements that the impregnated paper facing composite floor board of base material had both met floor, solve environmental issue, impart the advantage of product OSB base material simultaneously, for product provides more bright spot.OSB deep processing being become impregnated paper facing composite floor board to be used for house ornamentation, will be that industry saves one of important outlet of timber resources.CN103171014B (2015-4-15) discloses a kind of preparation method of Recombinant Wood, but this Recombinant Wood burst size of methanal is higher, the infiltration of staining reagents difficulty, easily run off, not weather-proof, with aqueous adhesive poor compatibility, bleaching and dyeing process environment and pollute more serious.
Summary of the invention
The object of this invention is to provide a kind of high-environmental, simultaneously but also there is the impregnated paper facing OSB composite floor board of high stability and water resistance of not only having had.
Above-mentioned technical purpose of the present invention is achieved by the following technical programs:
A kind of impregnated paper facing OSB composite floor board, it comprises OSB substrate layer, ply, buffering ply of paper, balance ply of paper, spraying and decorating ply of paper from below to up successively;
Longitudinal MOR >=50MPa of described OSB substrate layer, thickness swelling rate≤12%;
Described ply is poplar bleaching veneer, and thickness is 0.6-1.2mm;
Described buffering paper layer thickness is the impregnated kraft paper spread more than 80% of 0.4-0.6mm;
Described balance ply of paper weight is 70-80g, spread 100-120%;
Described spraying and decorating paper weight is 70-80g, spread 100-120%.
Composite floor board Form aldehyde release limitation of the present invention reaches E0 level, completely even without aldehyde level.Impregnated paper facing OSB composite floor board cost is more much lower than wooden floor, solid wooden compound floor cost, slightly higher than consolidated floor cost, but cost performance is higher than other floors, has very large market prospects.
The technical problem underlying that the present invention will propose is the problem how solving the crude problem of the rear tongue-and-groove of common OSB fluting and surperficial cold-hot Cycle Difference.For head it off, first OSB base material adopts base material, by increasing resin added, strengthening in it and combining.Surperficial wood chip refinement simultaneously, improve its uniformity, adopt 5 spreading heads, top layer and centre are divided equally, and improve the density on top layer simultaneously, make the Density Distribution of sheet material more reasonable.Finally between facing paper and veneer, increase cushion coat, the stress disperseing horizontal anti-tensile and resisted shrinkage intensity difference because of veneer to produce, increases the intensity of its transverse direction, improve final products and the cold-hot cycle performance on surface.
As preferably, described buffering ply of paper weight is 90-130g.
As preferably, the volatile matter of described buffering ply of paper, balance ply of paper, spraying and decorating ply of paper is respectively 6-9%, burst size of methanal≤1.0mg/L.
As preferably, the burst size of methanal of described OSB substrate layer is less than 0.3mg/L.
As preferably, described OSB substrate layer adopts PMDI glue to be adhesive, and resin added is 40-60kg/M
3.
As preferably, the glue between described OSB substrate layer adopts modification adhesive, and the preparation method of modification adhesive is:
A. alkaline substance solution 0.1-0.5 part and 0.3-0.6 part Hyperbranched Polymer with Terminal Amido PAMAM that the formalin 100 parts that mass concentration of weighing by weight is 36.5-37.4wt%, mass concentration are 30-50wt%, drop into reactor, opens and stir;
B. add 1-4 part hexachlorocyclotriph,sphazene by weight, be warming up to 50-55 DEG C, when being warming up to 75-85 DEG C voluntarily, adding 35-55 part melamine, continue to be warming up to 90-95 DEG C, react to obtain preliminary condensation polymer;
C. in above-mentioned preliminary condensation polymer, add 40-45 part melamine, and add 0.6-0.9 part para toluene sulfonamide, obtain the second condensation polymer;
Add 20-30 part urea when D. the second condensation polymer being cooled to 70-75 DEG C, continue reaction 8-12min, plastic emitting when being cooled to 30-50 DEG C.
The present invention adopts para toluene sulfonamide, Hyperbranched Polymer with Terminal Amido PAMAM modification, gradation adds urea, melamine and formaldehyde stage by stage, repeatedly feed intake, make the intermediates content of the modification muf resin glue in preparation process maximum, thus timber intensity, abrasion resistance and application life can be improved; Utilize the highly branched characteristic of the intramolecular a large amount of active function groups of Hyperbranched Polymer with Terminal Amido PAMAM and its structure to carry out modification muf resin, make the performance enhancement of resin, stability improves, and free formaldehyde release is effectively controlled; Adopt the Recombinant Wood burst size of methanal of modification MUF adhesive of the present invention process to be less than 0.2mg/L, reach Japanese F ☆ ☆ ☆ ☆ standard;
Simultaneously, the present invention with urea, melamine, formaldehyde for matrix, utilize the activity of phosphorus chlorine key in hexachlorocyclotriph,sphazene, chlorine is easy to be substituted, serial phosphazene compound (see reaction equation one) is obtained by substitution reaction, as with urea generation nucleophilic substitution, then add in matrix and participate in polycondensation reaction, thus introduce phosphazenium groups (see reaction equation two).Phosphazenium groups is hexatomic ring, quite stable, double bond arrangement is replaced with P, N, exist with ring-type or linear structure, owing to having good synergy between phosphorus, nitrogen, namely phosphorus has the heat-absorbing action of similar metaphosphoric acid, nitrogen has the effect of inert gas dilution oxygen, thus make modification MUF adhesive of the present invention have high temperature resistant and flame retardant effect preferably, be fuming and toxic gas few, there is environmentally friendly fire retardation.
Reaction equation one
Reaction equation two
As preferably, after described step D is cooled to 30-50 DEG C, add 5-10 part formaldehyde catching agent.
As preferably, the preparation method of described formaldehyde catching agent is: pulverized by 10-20 part urea, and add 5-10 part melamine, 8-12 part p-methyl benzenesulfonic acid two hydrazides, 6-7 part sulfanilic acid, 1-2 part nano silicon, stirs.
The interpolation of resin type formaldehyde catching agent of the present invention reduce further the mol ratio of Lauxite main gel stick urea and formaldehyde, the free urea remained in system and there is the light methyl compound of reactivity can with the formolite reaction in main gel stick, effectively reduce the burst size of methanal of final artificial board.
As preferably, after described modification MUF adhesive preparation method is also included in and adds described formaldehyde catching agent, then add first composite regulator 6-9 part and second composite regulator 7-11 part successively;
Described first composite regulator is made up of the tricaprylmethyl ammonium bromide of 1:3-4:1-2 proportioning in mass ratio, glycerine and polytetrafluoroethylene (PTFE);
Described second composite regulator is made up of the diphenylamines of 1:2-4:1-3 proportioning in mass ratio, 2,6-di-t-butyls and BTA.
There is after the present invention first composite regulator proportioning excellent dispersion, coagulate the soup and anti-wear and wear-resistant performance; After described second composite regulator proportioning, there is anti-oxidant and bright and clean corrosion-resistant function.
A preparation method for impregnated paper facing OSB composite floor board, is characterized in that comprising preparation process successively: wood shavings preparation and conveying, particle drying, and wood shavings screen, wood shavings applying glue, mats formation, first time hot pressing, the fixed thick sanding of blanket, veneer is allocated, and cloth glue, colds pressing, second time hot pressing, substrate sanding, cutting edge, paster, third time hot pressing, guide margin, multiple blade saw, two-ends milling machine, test package;
Inlet temperature during particle drying is 350-450 DEG C, and outlet temperature is 100-150 DEG C, and after particle drying, moisture content is 3% ± 1%;
Hot pressing temperature is 180-230 DEG C for the first time;
Described pressure of colding pressing is 0.5-0.8MPa, and cold pressing time 10-30min;
Described second time hot pressing pressure is 0.5-0.8MPa, temperature 105-110 DEG C, time 6-10min;
Described third time, hot pressing pressure was 0.9-1.2MPa, temperature 125-140 DEG C, time 6-10min.
OSB blanket is through the blanket needed for the operation processing procedures such as wood shavings preparation-particle drying-wood shavings screening-applying glue-mat formation-hot pressing.OSB blanket after fixed thick sanding with board using poplar board compound, through cloth glue, cold pressing, hot pressing, make OSB base material after sanding.On the panel layer of OSB base material, paste buffering paper and spraying decorative paper again respectively, paste balance paper again at backplane level, through hot pressing, hack, the operation such as groove milling, make final impregnated paper facing OSB composite floor board.
In sum, the present invention has following beneficial effect:
1, the OSB blanket adopted is special, and it has structure and OSB was different in the past, its top layer refinement, and top layer density is comparatively large, and density gradient distribution rationally.Suitable increase resin added, raising topic internal bond strength, is beneficial to groove milling.
2, the Form aldehyde release limitation of OSB blanket is without aldehyde level (< 0.3mg/L), and thickness swelling rate is little, within 12%, extends its application life.
3, OSB blanket and board using poplar board compound tense adopt special adhesive, guarantee that the burst size of methanal of the base material after compound is without aldehyde level, guarantees the high in environmental protection of final products.
4, between veneer and facing paper, increase buffering paper, increase its transverse strength, improve its surperficial cold-hot cycle indicator and crack resistance energy.
5, impregnated paper facing OSB composite floor board of the present invention has high-environmental;
6, impregnated paper facing OSB composite floor board of the present invention has high stability and water resistance.
Detailed description of the invention
Embodiment one
1, wood shavings preparation and conveying: OSB to the requirement of raw material higher than ordinary particle board, generally its raw material is single seeds, log diameter is generally at more than 80mm, adopt knife shaft flaker, carry out slicing processing along direction of wooden fibers to it, the wood shavings making it process are thin strip, and physical dimension is: long 100-120mm, wide 14-20mm, thick 05-0.7mm.Not broken in transportation for ensureing thin wood shavings of growing up, its haulage device generally adopts belt conveyer, pneumatic transport equipment should not be adopted, avoid adopting spiral conveyer, in order to avoid smash under the impact of wood shavings at cyclone vortex and the extruding at helical blade, affect effect of mating formation, finally affect the mechanical property of sheet material.
2, particle drying: because OSB wood shavings are thin strips; its drying preferably adopts single channel drumdrier; the synergy that the air velocity lower by means of rotating cylinder and rotating cylinder rotate; make thin strip wood shavings form the spiral mark that turns to travel forward; the soft friction mainly between wood shavings and low speed flow that wood shavings are subject in rotating cylinder and soft collision, wood shavings obtain good protection.Drier inlet temperature generally reaches 400 DEG C, and outlet temperature is generally at 120 DEG C, and after particle drying, moisture content general control is 3% ± 1%.
3, wood shavings screening: adopt revolving drum type screening machine to screen wood shavings, fines is separated from thin jointer plane is spent.The length of rotary screen cylindrical shell generally has the mesh of two ends different size, and one section of mesh is 8*8, for screening out fines.Another section of mesh is 25*25, for sifting out core layer material.
4, the wood shavings planar dimension that wood shavings applying glue: OSB adds mixer is comparatively large, for preventing wood shavings in real glue process broken, preferably adopts without aerosolization mode glue spraying, guarantee all with.Top layer raw material section carries out the applying glue of different glue kind according to the actual requirements, and resin added is generally about 5%.
5, mat formation: the longitudinal strength of wood fiber and dimensional stability are all higher than it laterally, according to this characteristic of timber, top layer will be mated formation into along wood shavings machine direction longitudinal arrangement when OSB mats formation, sandwich layer wood shavings then become vertical direction to arrange with top layer, form the oriented wood chipboard of three layers and sandwich construction,, reality determines its ratio according to the load bearing requirements of sheet material.Positioning spreading method has Electraligner to mat formation and mechanical orientation is mated formation, and the general mechanical orientation that adopts is mated formation.
6, hot pressing: OSB does not generally carry out sanding for the first time, therefore its heat pressing process and ordinary particle board have certain difference, have higher requirement to its hot pressing temperature and hot pressing time, and general employing 200 DEG C, hot pressing time is generally determined according to thickness.The length of pressing plate is dispersed with different pressure, temperature province (higher-pressure region, pressurize district, Ding Hou district), guarantees the mechanical property that product is final.
7, the fixed thick sanding of blanket: by OSB(E0 level or without aldehyde level) the fixed thick sanding of blanket is to desired thickness, and after sanding, steel slab surface is smooth, and nothing seriously caves in, ripple glaze, consistency of thickness, leaks sand phenomenon without serious, pollution-free; (occur part wood skin peeling, obscission after the OSB blanket sanding as use, need fill up with gelatine)
8, veneer allotment: by the back-to-back allotment of 0.8mm poplar bleaching veneer, two a set of, dimensions is consistent, quality meets the standard of feeding intake, and (after considering the OSB blanket sanding that we use, plate face is more coarse, there is wood chip obscission, and the final board surface quality of OSB ecological board finished product and Form aldehyde release limitation, use the poplar bleaching veneer of 0.8-1.0mm as far as possible)
9, cloth glue: blanket and veneer meet the standard of feeding intake, strict its moisture content of control.Glue adopts E0 glue, and suitably control the viscosity of institute's impregnation water, cloth glue amount controls about 300-360g/m2 (two-sided), and depending on plate face degree of roughness and veneer thickness, cloth glue needs evenly, without flower glue phenomenon.
10, cold pressing: suitably display 1-2 hour after cloth glue, treat that glue is not that very sticky hand is colded pressing again, cold pressing pressure 0.6MPa, time 10-30min.
11, second time hot pressing: unit pressure 0.6MPa, temperature 105-110 DEG C, time 6-10min, the substrate surface after hot pressing is clean and tidy, without rubbish adhesion, grunge pollution, impression, come unstuck, the defect such as bubbling.
12, substrate sanding: the complete substrate of hot pressing first carries out panel sorting, cuts off overlapping phenomenon, fills low concave defect with putty.Carry out sanding with three sanders, after sanding, plate face is smooth, bright and clean, and plate face has not allowed collapse head, defect such as jumping sand and stain etc.;
13, cutting edge: the substrate after sanding is cut into trimmed size, corner is upright, straight, bright and clean, without defects such as obvious swage set, Jiao Bian, burr.
14, paster: cover with paint, lacquer, colour wash, etc. by product structure, paste balance paper, buffering paper, spraying decorative paper again respectively, impregnated paper need cover substrate completely.
15, third time hot pressing: unit pressure 1.0MPa, time 6-8min/ face, temperature 125-140 DEG C.Heating platen face is smooth bright and clean, and still plate and steel plate adhesion, without defects such as rubbish impressions.
16, guide margin: by wide go out melamine paper beyond substrate breadth remove, guarantee consistent size.
17, multiple blade saw: cut by dimensional requirement by the slab posting impregnated paper, obtains required ground laminin plate.
18, two-ends milling machine: on request groove milling is carried out to the plain plate hacked.
19, test package: tested by product standard on the floor of having painted, qualified packaging and warehousing, Packaging Box is indicated kind, title, specification, quantity, look number, environmental protection grade etc.
Embodiment two
Impregnated paper facing OSB composite floor board comprises OSB substrate layer, ply, buffering ply of paper, balance ply of paper, spraying and decorating ply of paper from below to up successively;
Longitudinal MOR >=50MPa of OSB substrate layer, thickness swelling rate≤12%;
Ply is poplar bleaching veneer, and thickness is 0.6mm;
Buffering paper layer thickness is the impregnated kraft paper spread more than 80% of 0.4mm;
Balance ply of paper weight is 70g, spread 100%;
Spraying and decorating paper weight is 70g, spread 100%.
Buffering ply of paper weight is 90g.
The volatile matter of buffering ply of paper, balance ply of paper, spraying and decorating ply of paper is respectively 6-9%, burst size of methanal≤1.0mg/L.
The burst size of methanal of OSB substrate layer is less than 0.3mg/L.
OSB substrate layer adopts PMDI glue to be adhesive, and resin added is 40kg/M
3.
The preparation method of impregnated paper facing OSB composite floor board comprises preparation process successively :-Bu glue-cold pressing-hot pressing-substrate sanding-cutting edge-paster for the second time-third time hot pressing-guide margin-multiple blade saw-two-ends milling machine-test package allocated by wood shavings preparation and conveying-particle drying-wood shavings screening-wood shavings applying glue-mat formation-fixed thick sanding-veneer of first time hot pressing-blanket; Inlet temperature during particle drying is 350 DEG C, and outlet temperature is 100 DEG C, and after particle drying, moisture content is 3%%; Hot pressing temperature is 180 DEG C for the first time; Pressure of colding pressing is 0.5MPa, and cold pressing time 10min; Second time hot pressing pressure is 0.5MPa, temperature 105 DEG C, time 6min; Hot pressing pressure is 0.9MPa, temperature 125 DEG C, time 6min for the third time.
Embodiment three
Impregnated paper facing OSB composite floor board comprises OSB substrate layer, ply, buffering ply of paper, balance ply of paper, spraying and decorating ply of paper from below to up successively;
Longitudinal MOR >=50MPa of OSB substrate layer, thickness swelling rate≤12%;
Ply is poplar bleaching veneer, and thickness is 1.2mm;
Buffering paper layer thickness is the impregnated kraft paper spread more than 80% of 0.6mm;
Balance ply of paper weight is 80g, spread 120%;
Spraying and decorating paper weight is 80g, spread 120%.
Buffering ply of paper weight is 130g.
The volatile matter of buffering ply of paper, balance ply of paper, spraying and decorating ply of paper is respectively 9%, burst size of methanal≤1.0mg/L.
The burst size of methanal of OSB substrate layer is less than 0.3mg/L.
OSB substrate layer adopts PMDI glue to be adhesive, and resin added is 60kg/M
3.
The preparation method of impregnated paper facing OSB composite floor board comprises preparation process successively :-Bu glue-cold pressing-hot pressing-substrate sanding-cutting edge-paster for the second time-third time hot pressing-guide margin-multiple blade saw-two-ends milling machine-test package allocated by wood shavings preparation and conveying-particle drying-wood shavings screening-wood shavings applying glue-mat formation-fixed thick sanding-veneer of first time hot pressing-blanket; Inlet temperature during particle drying is 450 DEG C, and outlet temperature is 150 DEG C, and after particle drying, moisture content is 4%; Hot pressing temperature is 230 DEG C for the first time; Pressure of colding pressing is 0.8MPa, and cold pressing time 30min; Second time hot pressing pressure is 0.8MPa, temperature 110 DEG C, time 10min; Hot pressing pressure is 1.2MPa, temperature 140 DEG C, time 10min for the third time.
Embodiment four
Impregnated paper facing OSB composite floor board comprises OSB substrate layer, ply, buffering ply of paper, balance ply of paper, spraying and decorating ply of paper from below to up successively;
Longitudinal MOR >=50MPa of OSB substrate layer, thickness swelling rate≤12%;
Ply is poplar bleaching veneer, and thickness is 0.8mm;
Buffering paper layer thickness is the impregnated kraft paper spread more than 80% of 0.5mm;
Balance ply of paper weight is 75g, spread 110%;
Spraying and decorating paper weight is 76g, spread 110%.
Buffering ply of paper weight is 110g.
The volatile matter of buffering ply of paper, balance ply of paper, spraying and decorating ply of paper is respectively 6-9%, burst size of methanal≤1.0mg/L.
The burst size of methanal of OSB substrate layer is less than 0.3mg/L.
OSB substrate layer adopts PMDI glue to be adhesive, and resin added is 50kg/M
3.
The preparation method of impregnated paper facing OSB composite floor board comprises preparation process successively :-Bu glue-cold pressing-hot pressing-substrate sanding-cutting edge-paster for the second time-third time hot pressing-guide margin-multiple blade saw-two-ends milling machine-test package allocated by wood shavings preparation and conveying-particle drying-wood shavings screening-wood shavings applying glue-mat formation-fixed thick sanding-veneer of first time hot pressing-blanket; Inlet temperature during particle drying is 400 DEG C, and outlet temperature is 120 DEG C, and after particle drying, moisture content is 2%; Hot pressing temperature is 200 DEG C for the first time; Pressure of colding pressing is 0.6MPa, and cold pressing time 20min; Second time hot pressing pressure is 0.7MPa, temperature 108 DEG C, time 7min; Hot pressing pressure is 1.1MPa, temperature 130 DEG C, time 8min for the third time.
Embodiment five
With embodiment two, adopt modification adhesive unlike the glue between described OSB substrate layer, the preparation method of modification adhesive is:
A. alkaline substance solution 0.1 part and 0.3 part of Hyperbranched Polymer with Terminal Amido PAMAM that the formalin 100 parts that mass concentration of being weighed by weight portion is 36.5wt%, mass concentration are 30wt%, drop into reactor, opens and stir; Alkaline matter is NaOH, potassium hydroxide, calcium hydroxide, barium hydroxide or ammoniacal liquor;
B. add 1 part of hexachlorocyclotriph,sphazene, be warming up to 50 DEG C, when being warming up to 75 DEG C voluntarily, adding 35 parts of melamines, continue to be warming up to 90 DEG C, react to obtain preliminary condensation polymer;
C. in above-mentioned preliminary condensation polymer, add 40 parts of melamines, and add 0.6 part of para toluene sulfonamide, obtain the second condensation polymer;
Add 20 parts of urea when D. the second condensation polymer being cooled to 70 DEG C, continue reaction 8min, plastic emitting when being cooled to 30 DEG C.
Embodiment six
With embodiment three, adopt modification adhesive unlike the glue between described OSB substrate layer, the preparation method of modification adhesive is:
A. alkaline substance solution 0.5 part and 0.6 part of Hyperbranched Polymer with Terminal Amido PAMAM that the formalin 100 parts that mass concentration of being weighed by weight portion is 37.4wt%, mass concentration are 50wt%, drop into reactor, opens and stir; Alkaline matter is NaOH, potassium hydroxide, calcium hydroxide, barium hydroxide or ammoniacal liquor;
B. add 1 part of hexachlorocyclotriph,sphazene, be warming up to 55 DEG C, when being warming up to 85 DEG C voluntarily, adding 55 parts of melamines, continue to be warming up to 95 DEG C, react to obtain preliminary condensation polymer;
C. in above-mentioned preliminary condensation polymer, add 45 parts of melamines, and add 0.9 part of para toluene sulfonamide, obtain the second condensation polymer;
Add 30 parts of urea when D. the second condensation polymer being cooled to 75 DEG C, continue reaction 12min, plastic emitting when being cooled to 50 DEG C.
Embodiment seven
With embodiment four, adopt modification adhesive unlike the glue between described OSB substrate layer, the preparation method of modification adhesive is:
A. alkaline substance solution 0.4 part and 0.5 part of Hyperbranched Polymer with Terminal Amido PAMAM that the formalin 100 parts that mass concentration of being weighed by weight portion is 36.9wt%, mass concentration are 40wt%, drop into reactor, opens and stir; Alkaline matter is NaOH, potassium hydroxide, calcium hydroxide, barium hydroxide or ammoniacal liquor;
B. add 3 parts of hexachlorocyclotriph,sphazenes, be warming up to 53 DEG C, when being warming up to 80 DEG C voluntarily, adding 45 parts of melamines, continue to be warming up to 92 DEG C, react to obtain preliminary condensation polymer;
C. in above-mentioned preliminary condensation polymer, add 43 parts of melamines, and add 0.8 part of para toluene sulfonamide, obtain the second condensation polymer;
Add 20-30 part urea when D. the second condensation polymer being cooled to 72 DEG C, continue reaction 9min, plastic emitting when being cooled to 40 DEG C.
Embodiment eight
With embodiment five, after step D cooling, add 5 parts of formaldehyde catching agents and 1 part of curing compound;
The preparation method of formaldehyde catching agent is: pulverized by 10 parts of urea, add 5 melamines, 8 parts of p-methyl benzenesulfonic acid two hydrazides, 6 parts of sulfanilic acids, and 1 part of nano silicon, stirs;
The preparation method of curing compound is: add in reactor by 100 parts of water, opens and stirs, be warming up to 40 DEG C, add 20 parts of aluminum sulfate, 15 parts of p-methyl benzenesulfonic acid, dissolves completely, is down to room temperature discharging.
After modification MUF adhesive preparation method is also included in and adds described formaldehyde catching agent, then add the first composite regulator 6 parts and the second composite regulator 11 parts successively;
First composite regulator is made up of the tricaprylmethyl ammonium bromide of 1:3:2 proportioning in mass ratio, glycerine and polytetrafluoroethylene (PTFE);
Second composite regulator is made up of the diphenylamines of 1:2:3 proportioning in mass ratio, 2,6-di-t-butyls and BTA.
Embodiment nine
With embodiment six, after step D cooling, add 5 parts of formaldehyde catching agents and 3 parts of curing compound;
The preparation method of formaldehyde catching agent is: pulverized by 20 parts of urea, add 10 melamines, 12 parts of p-methyl benzenesulfonic acid two hydrazides, 7 parts of sulfanilic acids, and 2 parts of nano silicons, stir;
The preparation method of curing compound is: add in reactor by 100 parts of water, opens and stirs, be warming up to 50 DEG C, add 30 parts of aluminum sulfate, 10 parts of p-methyl benzenesulfonic acid, dissolves completely, is down to room temperature discharging.
After modification MUF adhesive preparation method is also included in and adds described formaldehyde catching agent, then add the first composite regulator 9 parts and the second composite regulator 11 parts successively;
First composite regulator is made up of the tricaprylmethyl ammonium bromide of 1:4:1 proportioning in mass ratio, glycerine and polytetrafluoroethylene (PTFE);
Second composite regulator is made up of the diphenylamines of 1:4:1 proportioning in mass ratio, 2,6-di-t-butyls and BTA.
Embodiment ten
With embodiment seven, after step D cooling, add 6 parts of formaldehyde catching agents and 2 parts of curing compound;
The preparation method of formaldehyde catching agent is: pulverized by 15 parts of urea, add 8 melamines, 11 parts of p-methyl benzenesulfonic acid two hydrazides, 6.5 parts of sulfanilic acids, and 1.2 parts of nano silicons, stir;
The preparation method of curing compound is: add in reactor by 100 parts of water, opens and stirs, be warming up to 45 DEG C, add 25 parts of aluminum sulfate, 12 parts of p-methyl benzenesulfonic acid, dissolves completely, is down to room temperature discharging.
After modification MUF adhesive preparation method is also included in and adds described formaldehyde catching agent, then add the first composite regulator 8 parts and the second composite regulator 7 parts successively;
First composite regulator is made up of the tricaprylmethyl ammonium bromide of 1:3.4:1.2 proportioning in mass ratio, glycerine and polytetrafluoroethylene (PTFE);
Second composite regulator is made up of the diphenylamines of 1:2.4:1.3 proportioning in mass ratio, 2,6-di-t-butyls and BTA.
The Form aldehyde release limitation < 0.2mg/L of the impregnated paper facing OSB composite floor board finally made, reaches Japanese F ☆ ☆ ☆ ☆ standard; Antibiotic rate >=90%; Surface abrasion resistance≤0.08g/100r; Surface abrasion resistance meets standard GB/T18103-2013.The purifying formaldehyde efficiency of impregnated paper facing OSB composite floor board reaches more than 75%, and purifying formaldehyde effect persistence is greater than 60%.
This specific embodiment is only explanation of the invention; it is not limitation of the present invention; those skilled in the art can make to the present embodiment the amendment not having creative contribution as required after reading this manual, as long as but be all subject to the protection of Patent Law in right of the present invention.
Claims (10)
1. an impregnated paper facing OSB composite floor board, is characterized in that: comprise OSB substrate layer, ply, buffering ply of paper, balance ply of paper, spraying and decorating ply of paper from below to up successively;
Longitudinal MOR >=50MPa of described OSB substrate layer, thickness swelling rate≤12%;
Described ply is poplar bleaching veneer, and thickness is 0.6-1.2mm;
Described buffering paper layer thickness is the impregnated kraft paper spread more than 80% of 0.4-0.6mm;
Described balance ply of paper weight is 70-80g, spread 100-120%;
Described spraying and decorating paper weight is 70-80g, spread 100-120%.
2. a kind of impregnated paper facing OSB composite floor board according to claim 1, is characterized in that: described buffering ply of paper weight is 90-130g.
3. a kind of impregnated paper facing OSB composite floor board according to claim 2, is characterized in that: the volatile matter of described buffering ply of paper, balance ply of paper, spraying and decorating ply of paper is respectively 6-9%, burst size of methanal≤1.0mg/L.
4. a kind of impregnated paper facing OSB composite floor board according to claim 3, is characterized in that: the burst size of methanal of described OSB substrate layer is less than 0.3mg/L.
5. a kind of impregnated paper facing OSB composite floor board according to claim 4, is characterized in that: described OSB substrate layer adopts PMDI glue to be adhesive, and resin added is 40-60kg/M
3.
6. a kind of impregnated paper facing OSB composite floor board according to claim 4, is characterized in that: the glue between described OSB substrate layer adopts modification adhesive, and the preparation method of modification adhesive is:
A weighs alkaline substance solution 0.1-0.5 part and the 0.3-0.6 part Hyperbranched Polymer with Terminal Amido PAMAM that mass concentration is the formalin 100 parts of 36.5-37.4wt%, mass concentration is 30-50wt% by weight, drops into reactor, opens and stir;
B adds 1-4 part hexachlorocyclotriph,sphazene by weight, is warming up to 50-55 DEG C, when being warming up to 75-85 DEG C voluntarily, adding 35-55 part melamine, continues to be warming up to 90-95 DEG C, reacts to obtain preliminary condensation polymer;
C adds 40-45 part melamine in above-mentioned preliminary condensation polymer, and adds 0.6-0.9 part para toluene sulfonamide, obtains the second condensation polymer;
Add 20-30 part urea when second condensation polymer is cooled to 70-75 DEG C by D, continue reaction 8-12min, plastic emitting when being cooled to 30-50 DEG C.
7. a kind of impregnated paper facing OSB composite floor board according to claim 6, is characterized in that: after described step D is cooled to 30-50 DEG C, add 5-10 part formaldehyde catching agent.
8. a kind of impregnated paper facing OSB composite floor board according to claim 7, it is characterized in that: the preparation method of described formaldehyde catching agent is: 10-20 part urea is pulverized, add 5-10 part melamine, 8-12 part p-methyl benzenesulfonic acid two hydrazides, 6-7 part sulfanilic acid, 1-2 part nano silicon, stirs.
9. a kind of impregnated paper facing OSB composite floor board according to claim 8, it is characterized in that: after described modification MUF adhesive preparation method is also included in and adds described formaldehyde catching agent, then add first composite regulator 6-9 part and second composite regulator 7-11 part successively;
Described first composite regulator is made up of the tricaprylmethyl ammonium bromide of 1:3-4:1-2 proportioning in mass ratio, glycerine and polytetrafluoroethylene (PTFE);
Described second composite regulator is made up of the diphenylamines of 1:2-4:1-3 proportioning in mass ratio, 2,6-di-t-butyls and BTA.
10. a preparation method for impregnated paper facing OSB composite floor board, is characterized in that comprising preparation process successively :-Bu glue-cold pressing-hot pressing-substrate sanding-cutting edge-paster for the second time-third time hot pressing-guide margin-multiple blade saw-two-ends milling machine-test package allocated by wood shavings preparation and conveying-particle drying-wood shavings screening-wood shavings applying glue-mat formation-fixed thick sanding-veneer of first time hot pressing-blanket;
Inlet temperature during particle drying is 350-450 DEG C, and outlet temperature is 100-150 DEG C, and after particle drying, moisture content is 3% ± 1%;
Hot pressing temperature is 180-230 DEG C for the first time;
Described pressure of colding pressing is 0.5-0.8MPa, and cold pressing time 10-30min;
Described second time hot pressing pressure is 0.5-0.8MPa, temperature 105-110 DEG C, time 6-10min;
Described third time, hot pressing pressure was 0.9-1.2MPa, temperature 125-140 DEG C, time 6-10min.
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