CN105291540A - Preparation method of environment-friendly ecological board - Google Patents
Preparation method of environment-friendly ecological board Download PDFInfo
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- CN105291540A CN105291540A CN201510687287.4A CN201510687287A CN105291540A CN 105291540 A CN105291540 A CN 105291540A CN 201510687287 A CN201510687287 A CN 201510687287A CN 105291540 A CN105291540 A CN 105291540A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
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Abstract
Th invention relates to a preparation method of an environment-friendly ecological board, and belongs to the technical field of decorative materials. The method comprises the following steps that 1, a hindered amine light stabilizer is dispersed into melamine modified resin, and then first-time dipping treatment, first-time drying, second-time dipping treatment and second-time drying are sequentially conducted on woodgrained paper in an obtained mixture to prepare a high color fastness facing layer, wherein a light stabilizer dispersion technology comprises the steps that 100 parts by mass of the melamine modified resin and 5-20 parts by mass of the light stabilizer are weighed, and the light stabilizer is added to the melamine modified resin during stirring; 2, veneer compounding is conducted on the high color fastness facing layer and a buffer balance layer for hot pressing; 3, the upper surface and the lower surface of a substrate layer are coated with an environment-friendly adhesive, and boards prepared in the second step are compounded on the upper surface and the lower surface, coated with the environment-friendly adhesive, of the substrate layer for prepressing; 4, the environment-friendly ecological board is prepared through hot pressing. The decorative board has the advantages of being low in formaldehyde emission amount and high in grade of color fastness grade to light.
Description
Technical field
The present invention relates to a kind of environmental and ecological plate and preparation method, belong to decorative materials technology.
Background technology
In decorative materials technology, after glued board, core-board and thick china finishing, the smells such as indoor toluene, dimethylbenzene can not leave for a long time, have a strong impact on indoor environment, constrain the use of this product; Impregnated paper face artificial board (core-board core, plywood core, being also called " environmental and ecological plate ") speed of application is fast, indoor organic volatile matter matter is few, the parent being more and more subject to consumer looks at, but the mol ratio of the Lauxite of impregnated paper, melamine resin is too high, burst size of methanal is apparently higher than common wood-based plate; And impregnated paper painted time ink in bright pigment mostly adopt azo-type, cause color fastness to light not high, in room sunlight according to shine degree varies, plate face color distortion is obvious.Solving above-mentioned two problems, is the top priority of impregnated paper face artificial board extensive use.
Patent CN102642220A, CN101695848B disclose different substrate materials and exempt from paint ecological board and preparation technology, but could not solve the problem that above-mentioned environmental protection grade is low, color fastness to light is poor.
Summary of the invention
The object of the invention is the deficiency overcoming prior art existence, and a kind of preparation method possessing the environmental and ecological plate that burst size of methanal is low, color fastness to light grade is high is provided.
A preparation method for environmental and ecological plate as above, it comprises the following steps:
(1) hindered amine light stabilizer is scattered in cyanurotriamide modified resin, then woodgrained paper is carried out successively first time impregnation process, first time drying, second time impregnation process, the dry obtained high color fastness finish coat of second time within it; Successively add nano silicon and 2-imidazolidinone during step (1) second time impregnation process, the addition of nano silicon is the 5-8% of cyanurotriamide modified resin quality, and the addition of 2-imidazolidinone is the 1-3% of cyanurotriamide modified resin quality;
The technique that light stabilizer in described step (1) is scattered in cyanurotriamide modified resin comprises: 1. take cyanurotriamide modified resin 100 parts by mass parts, light stabilizer 5-20 part; 2. in cyanurotriamide modified resin, add light stabilizer while stirring, mixing speed >=1000 rev/min, light stabilizer is dispersed in resin;
(2) high color fastness finish coat step (1) made and cushioning balance layer veneer compound carry out hot pressing;
(3) upper and lower for substrate layer two surfaces are coated with environment-friendlyadhesive adhesive, then the plate that step (2) is made is compounded in the substrate layer scribbling environment-friendlyadhesive adhesive upper and lower two carries out precompressed on the surface;
(4) slab after step (3) precompressed is carried out hot pressing and obtain environmental and ecological plate;
Finally obtained environmental and ecological plate comprises substrate layer, cushioning balance layer and high color fastness finish coat; Described high color fastness finish coat color fastness grade reaches more than 6 grades;
Upper and lower two surfaces of described substrate layer are bonded by environment-friendlyadhesive adhesive and cushioning balance layer;
Described high color fastness finish coat employing impregnated in the woodgrained paper comprised in the cyanurotriamide modified resin of light stabilizer and makes; Described high color fastness finish coat is bonded in above cushioning balance layer;
Described cushioning balance layer is board using poplar board, Eucalyptus veneer or Recombinant Wood veneer;
Described substrate layer is multi-plywood or core-board;
Described environment-friendlyadhesive adhesive is living beings rubber made from soybean cake; Living beings rubber made from soybean cake comprises the mixture that the bean powder of 1:1.5-2.5 in mass ratio and auxiliary agent mix; Living beings rubber made from soybean cake preparation method comprises bean powder and auxiliary agent is stirred 5-20min under rotating speed is the condition of 300-2000r/min, and stir, viscosity controls at 30000-100000cps.Adopt the method for graded impregnation and gradation drying, finish coat color fastness to light can be improved; And then respectively with the hot pressing of cushioning balance layer compound, substrate layer precompressed and hot pressing after the color fastness of obtained ecological board still can keep reaching more than 5 grades, do not affect finishing effect.Below burst size of methanal 0.2mg/L; Surface bonding intensity is more than 1.2MPa.
By successively adding nano silicon, 2-imidazolidinone control addition, modification can be carried out to melamine resin further, reducing the burst size of methanal of impregnated paper.Meanwhile, add nano silicon, liquid hindered piperidine based compound during impregnation process in proportion, the irradiation level of ultraviolet light can also be reduced further, the color fastness to light of azo dyes can be improved.
The invention solves and exempt from paint ecological board product color fastness to light grade this common problem low, ecological board color fastness to light grade prepared by the present invention reaches more than 5 grades; Adopt biomass environment-friendly adhesive, greatly reduce the burst size of methanal of ecological board, there is very high environmental-protecting performance.When preparing melamine impregnated paper, light stabilizer being scattered in resin, strengthening its anti-light degradation property on the one hand, do not affect its finishing effect on the other hand.
As preferably, also comprise nanoscale TiO after step (4) hot pressing
2photocatalyst material, Nano Silver mix in the ratio of 1-2:0.2-0.4:15-20 with UV scratch-resistant finish paint three, dispersed, make the scratch-resistant UV finish paint with antibacterial functions; Then upper finish paint process is carried out, one side coating weight 10-14g/m
2, and with UV lamp, irradiation solidification is carried out to it, thus make antibacterial lacquer painting.
As preferably, the hindered amine light stabilizer in described step (1) is liquid hindered piperidine based compound, and consumption is the 5-20% of cyanurotriamide modified resin quality.
Stabilizing agent of the present invention is easy to dispersion in cyanurotriamide modified resin, its mechanism of light stabilizer is the alkyl diradical produced during can catch light on the one hand decomposes, and decompose the peroxide of photooxidation accumulation, quencher can cause photodegradative singlet oxygen on the other hand.
As preferably, the technique that the light stabilizer in described step (1) is scattered in cyanurotriamide modified resin comprises: 1. take cyanurotriamide modified resin 100 parts by mass parts, light stabilizer 5-20 part; 2. in cyanurotriamide modified resin, add light stabilizer while stirring, mixing speed >=1000 rev/min, light stabilizer is dispersed in resin.
By the cyanurotriamide modified resin comprising light stabilizer that special ratios is prepared, while keeping the color fastness of ecological board can keep reaching more than 5 grades, very high environmental-protecting performance can be obtained; Strengthen its anti-light degradation property on the one hand, do not affect its finishing effect on the other hand.If mixing speed is too little, light stabilizer can not be scattered in resin uniformly, and the color fastness of sheet material finish coat can not reach more than 5 grades.
As preferably, the preparation of described cyanurotriamide modified resin comprises first twice melamine addition polycondensation, and then a urea polycondensation makes HCHO/NH
2mol ratio be 0.4-0.6.
The present invention adopts first twice melamine addition polycondensation and urea polycondensation to make the melamine resin of low mole prop0rtion, to control the burst size of methanal of impregnated paper.
As preferably, described auxiliary agent comprises water, alkali, polyvinyl alcohol, hexamethyl-epoxy chlorobutane, kaolin and isocyanates.
As preferably, the hindered amine light stabilizer in described step (1) is UV-765, and consumption is the 8-12% of cyanurotriamide modified resin quality.
As preferably, the hot pressing parameters of the cushioning balance layer veneer in described step (2) and high color fastness finish coat compound is unit pressure 0.5-1.5MPa, time 3-7 minute, temperature 110-140 DEG C.
Unit pressure during hot pressing, time and temperature must closely cooperate, otherwise timber intensity and hardness not only can be caused not to reach requirement, and finish coat color fastness grade is low.
As preferably, after described step (2) hot pressing and between step (3) painting environment-friendlyadhesive adhesive, also comprise dyeing process, in dyeing, adopt ternary built dyestuff;
Described ternary built dyestuff is liquid hindered piperidine based compound, fire retardant and azo dyes according to the composite ternary built dyestuff of mass ratio 1:25-40:100-300.
By adjusting the synthesis technique of azo type pigment, change the crystal structure of AZOpigments, and in ink formulation process adding liquid hindered piperidine based compound, and the nano silicon in impregnating resin can improve the light fastness of sheet material.
Further preferably, described Azo dye amount is 500-600 dalton, has cubic crystal structure.
As preferably, the substrate layer glue-spread in described step (3) is 160-220g/m
2; Precompressed parameter is unit pressure 0.3-0.7MPa, time 10-40 minute, and temperature is 20-40 DEG C.
The unit pressure of precompressed after substrate layer gluing, time and temperature must closely cooperate, otherwise timber intensity and hardness not only can be caused not to reach requirement, and finish coat color fastness grade is low.
As preferably, the environment-friendlyadhesive adhesive in described step (3) is that urea-modified soybean protein, Polyamide-Polyamsne-Epichlorohydrin, nanofiber cellulose solution are according to the blended modified biomass adhesive of mass ratio 15-40:1-3:80-100.
E0 level is reached for making impregnated paper veneer artificial board formaldehyde emission, the burst size of methanal of strict control base material (core-board, glued board) is within 0.2mg/L, the urea-modified soybean protein of main employing, Polyamide-Polyamsne-Epichlorohydrin, nano-cellulose solution blending modified biomass adhesive glue together; Impregnated paper adopts the low mole prop0rtion melmac of first twice melamine addition polycondensation and a urea polycondensation, add the modified material such as nano silicon, 2-imidazolidinone during impregnation process in proportion, control the burst size of methanal of impregnated paper within 0.2mg/L.
As preferably, the slab hot compression parameters in described step (4) is unit pressure 0.5-1.0MPa, time 4-10 minute, temperature 100 DEG C-130 DEG C.
Unit pressure during last slab hot pressing, time and temperature must closely cooperate, otherwise timber intensity and hardness not only can be caused not to reach requirement, and finish coat color fastness to light grade can reach 5 grades.
In sum, the present invention has following beneficial effect:
1) urea-modified soybean protein, the environment protection health of Polyamide-Polyamsne-Epichlorohydrin, nano-cellulose solution blending modified soy-bean protein glue,
2) first twice melamine controls the synthesis technique of burst size of methanal low mole prop0rtion melamine resin of addition polycondensation and a urea polycondensation within 0.2mg/L of impregnated paper;
3) the composite dyestuff adopting specific AZOpigments to form, improves the light resistance of pigment;
4) add nano silicon, liquid hindered piperidine based compound during impregnation process in proportion, reduce the irradiation level of ultraviolet light, the color fastness to light of sheet material can be improved.
Detailed description of the invention
Embodiment one
The preparation method of environmental and ecological plate comprises the following steps:
(1) hindered amine light stabilizer is scattered in cyanurotriamide modified resin, then woodgrained paper is carried out successively first time impregnation process, first time drying, second time impregnation process, the dry obtained high color fastness finish coat of second time within it; Hindered amine light stabilizer is liquid hindered piperidine based compound, and consumption is 5% of cyanurotriamide modified resin quality;
Wherein, the technique that light stabilizer is scattered in cyanurotriamide modified resin comprises: 1. take cyanurotriamide modified resin 100 parts by mass parts, light stabilizer 5 parts; 2. in cyanurotriamide modified resin, add light stabilizer while stirring, mixing speed >=1000 rev/min, light stabilizer is dispersed in resin;
The preparation of cyanurotriamide modified resin comprises first twice melamine addition polycondensation, and then a urea polycondensation makes HCHO/NH
2mol ratio be 0.4;
Successively add nano silicon and 2-imidazolidinone during second time impregnation process, the addition of nano silicon is the addition of 5%, 2-imidazolidinone of cyanurotriamide modified resin quality is 1% of cyanurotriamide modified resin quality;
(2) high color fastness finish coat step (1) made and cushioning balance layer veneer compound carry out hot pressing; Hot pressing parameters is unit pressure 0.5MPa, 3 minutes time, temperature 110 DEG C; Cushioning balance layer is board using poplar board;
(3) upper and lower for substrate layer two surfaces are coated with environment-friendlyadhesive adhesive, substrate layer is core-board; Again the plate that step (2) is made is compounded in the substrate layer scribbling environment-friendlyadhesive adhesive upper and lower two and carries out precompressed on the surface; Wherein, substrate layer glue-spread is 160g/m
2; Precompressed parameter is unit pressure 0.3MPa, and 10 minutes time, temperature is 20 DEG C.
Environment-friendlyadhesive adhesive is that urea-modified soybean protein, Polyamide-Polyamsne-Epichlorohydrin, nanofiber cellulose solution are according to the blended modified biomass adhesive of mass ratio 15:1:100;
(4) slab after step (3) precompressed is carried out hot pressing, hot compression parameters is unit pressure 0.5MPa, 4 minutes time, temperature 100 DEG C; Obtained environmental and ecological plate.
Finally obtained environmental and ecological plate comprises substrate layer, cushioning balance layer and high color fastness finish coat; High color fastness finish coat color fastness grade reaches more than 5 grades;
Upper and lower two surfaces of substrate layer are bonded by environment-friendlyadhesive adhesive and cushioning balance layer;
The employing of high color fastness finish coat impregnated in the woodgrained paper comprised in the cyanurotriamide modified resin of light stabilizer and makes; High color fastness finish coat is bonded in above cushioning balance layer;
Environment-friendlyadhesive adhesive is living beings rubber made from soybean cake; Living beings rubber made from soybean cake comprises the mixture that the bean powder of 1:1.5 in mass ratio and auxiliary agent mix; Living beings rubber made from soybean cake preparation method comprises bean powder and auxiliary agent is stirred 5min under rotating speed is the condition of 300r/min, and stir, viscosity controls at 30000cps.
The environmental and ecological plate color fastness to light color fastness made keeps reaching more than 5 grades, does not affect finishing effect.Below burst size of methanal 0.2mg/L; Surface bonding intensity is more than 1.2MPa.
Embodiment two
The preparation method of environmental and ecological plate comprises the following steps:
(1) hindered amine light stabilizer is scattered in cyanurotriamide modified resin, then woodgrained paper is carried out successively first time impregnation process, first time drying, second time impregnation process, the dry obtained high color fastness finish coat of second time within it; Hindered amine light stabilizer is liquid hindered piperidine based compound, and consumption is 20% of cyanurotriamide modified resin quality;
Wherein, the technique that light stabilizer is scattered in cyanurotriamide modified resin comprises: 1. take cyanurotriamide modified resin 100 parts by mass parts, light stabilizer 20 parts; 2. in cyanurotriamide modified resin, add light stabilizer while stirring, mixing speed >=1000 rev/min, light stabilizer is dispersed in resin;
The preparation of cyanurotriamide modified resin comprises first twice melamine addition polycondensation, and then a urea polycondensation makes HCHO/NH
2mol ratio be 0.6;
Successively add nano silicon and 2-imidazolidinone during second time impregnation process, the addition of nano silicon is the addition of 8%, 2-imidazolidinone of cyanurotriamide modified resin quality is 3% of cyanurotriamide modified resin quality;
(2) high color fastness finish coat step (1) made and cushioning balance layer veneer compound carry out hot pressing; Hot pressing parameters is unit pressure 1.5MPa, 7 minutes time, temperature 140 DEG C; Cushioning balance layer is board using poplar board;
(3) upper and lower for substrate layer two surfaces are coated with environment-friendlyadhesive adhesive, substrate layer is multi-plywood; Again the plate that step (2) is made is compounded in the substrate layer scribbling environment-friendlyadhesive adhesive upper and lower two and carries out precompressed on the surface; Wherein, substrate layer glue-spread is 220g/m
2; Precompressed parameter is unit pressure 0.7MPa, and 40 minutes time, temperature is 40 DEG C.
Environment-friendlyadhesive adhesive is that urea-modified soybean protein, Polyamide-Polyamsne-Epichlorohydrin, nanofiber cellulose solution are according to the blended modified biomass adhesive of mass ratio 40:3:80;
(4) slab after step (3) precompressed is carried out hot pressing, hot compression parameters is unit pressure 1.0MPa, 10 minutes time, temperature 130 DEG C; Obtained environmental and ecological plate.
Finally obtained environmental and ecological plate comprises substrate layer, cushioning balance layer and high color fastness finish coat; High color fastness finish coat color fastness grade reaches more than 5 grades;
Upper and lower two surfaces of substrate layer are bonded by environment-friendlyadhesive adhesive and cushioning balance layer;
The employing of high color fastness finish coat impregnated in the woodgrained paper comprised in the cyanurotriamide modified resin of light stabilizer and makes; High color fastness finish coat is bonded in above cushioning balance layer;
Environment-friendlyadhesive adhesive is living beings rubber made from soybean cake; Living beings rubber made from soybean cake comprises the mixture that the bean powder of 1:2.5 in mass ratio and auxiliary agent mix; Living beings rubber made from soybean cake preparation method comprises bean powder and auxiliary agent is stirred 5-20min under rotating speed is the condition of 2000r/min, and stir, viscosity controls at 100000cps.
The environmental and ecological plate color fastness to light color fastness made keeps reaching more than 5 grades, does not affect finishing effect.Below burst size of methanal 0.2mg/L; Surface bonding intensity is more than 1.2MPa.
Embodiment three
With embodiment one, be UV-765 unlike step (1) hindered amine light stabilizer, consumption is 8% of cyanurotriamide modified resin quality.
Also comprise dyeing process after step (2) hot pressing and between step (3) painting environment-friendlyadhesive adhesive, in dyeing, adopt ternary built dyestuff; Ternary built dyestuff is liquid hindered piperidine based compound, fire retardant and azo dyes according to the composite ternary built dyestuff of mass ratio 1:25:300.Azo dye amount is 500-600 dalton, has cubic crystal structure.
Finally obtained environmental and ecological plate comprises substrate layer, cushioning balance layer and high color fastness finish coat; High color fastness finish coat color fastness grade reaches more than 5 grades;
Upper and lower two surfaces of substrate layer are bonded by environment-friendlyadhesive adhesive and cushioning balance layer;
The employing of high color fastness finish coat impregnated in the woodgrained paper comprised in the cyanurotriamide modified resin of light stabilizer and makes; High color fastness finish coat is bonded in above cushioning balance layer;
Environment-friendlyadhesive adhesive is living beings rubber made from soybean cake; Living beings rubber made from soybean cake comprises the mixture that the bean powder of 1:1.5-2.5 in mass ratio and auxiliary agent mix; Living beings rubber made from soybean cake preparation method comprises bean powder and auxiliary agent is stirred 5-20min under rotating speed is the condition of 1000r/min, and stir, viscosity controls at 60000cps.
Embodiment four
With embodiment two, be UV-765 unlike step (1) hindered amine light stabilizer, consumption is the 8-12% of cyanurotriamide modified resin quality.
Also comprise dyeing process after step (2) hot pressing and between step (3) painting environment-friendlyadhesive adhesive, in dyeing, adopt ternary built dyestuff; Ternary built dyestuff is liquid hindered piperidine based compound, fire retardant and azo dyes according to the composite ternary built dyestuff of mass ratio 1:40:100.Azo dye amount is 500-600 dalton, has cubic crystal structure.
Also comprise nanoscale TiO after step (4) hot pressing
2photocatalyst material, Nano Silver mix in the ratio of 1:0.3:18 with UV scratch-resistant finish paint three, dispersed, make the scratch-resistant UV finish paint with antibacterial functions; Then upper finish paint process is carried out, one side coating weight 12g/m
2, and with UV lamp, irradiation solidification is carried out to it, thus make antibacterial lacquer painting.
Embodiment five
With embodiment one, be UV-765 unlike step (1) hindered amine light stabilizer, consumption is 9% of cyanurotriamide modified resin quality.
Also comprise dyeing process after step (2) hot pressing and between step (3) painting environment-friendlyadhesive adhesive, in dyeing, adopt ternary built dyestuff; Ternary built dyestuff is liquid hindered piperidine based compound, fire retardant and azo dyes according to the composite ternary built dyestuff of mass ratio 1:30:200.Azo dye amount is 500-600 dalton, has cubic crystal structure.
The environmental and ecological plate color fastness to light color fastness made keeps reaching more than 5 grades, does not affect finishing effect.Below burst size of methanal 0.2mg/L; Surface bonding intensity is more than 1.2MPa.
Also comprise nanoscale TiO after step (4) hot pressing
2photocatalyst material, Nano Silver mix in the ratio of 1:0.2:20 with UV scratch-resistant finish paint three, dispersed, make the scratch-resistant UV finish paint with antibacterial functions; Then upper finish paint process is carried out, one side coating weight 10g/m
2, and with UV lamp, irradiation solidification is carried out to it, thus make antibacterial lacquer painting.
Embodiment six
A preparation method for environmental and ecological plate, it comprises the following steps:
(1) making of high color fastness finish coat, be scattered in by 10 parts of hindered amine light stabilizer UV-765 in 100 parts of melmacs, woodgrained paper carries out first time impregnation process successively in this resin, first time is dry, second time impregnation process, second time are dry;
(2) high color fastness finish coat step (1) made and cushioning balance layer veneer compound are sent into hot press and are carried out hot pressing, and hot pressing parameters is unit pressure 1.5MPa, 7 minutes time, temperature 140 DEG C;
(3) substrate layer is carried out surely thick sanding and upper and lower two surface be coated with without aldehyde glue, then the plate that step (2) is made is compounded in its two on the surface feeding press carry out precompressed, glue-spread is 220g/m
2, precompressed parameter is unit pressure 0.7,40 minutes time, and temperature is normal temperature;
(4) slab after step (3) precompressed is sent into hot press and carry out hot pressing, hot compression parameters is unit pressure 1.0MPa, 10 minutes time, temperature 100 DEG C.
Also comprise nanoscale TiO after step (4) hot pressing
2photocatalyst material, Nano Silver mix in the ratio of 2:0.4:15 with UV scratch-resistant finish paint three, dispersed, make the scratch-resistant UV finish paint with antibacterial functions; Then upper finish paint process is carried out, one side coating weight 14g/m
2, and with UV lamp, irradiation solidification is carried out to it, thus make antibacterial lacquer painting.
Embodiment seven
A preparation method for environmental and ecological plate, it comprises the following steps:
(1) making of high color fastness finish coat, be scattered in by 10 parts of hindered amine light stabilizer UV-292 in 100 parts of melmacs, woodgrained paper carries out first time impregnation process successively in this resin, first time is dry, second time impregnation process, second time are dry;
(2) high color fastness finish coat step (1) made and cushioning balance layer veneer compound are sent into hot press and are carried out hot pressing, and hot pressing parameters is unit pressure 0.5MPa, 3 minutes time, temperature 110 DEG C;
(3) substrate layer is carried out surely thick sanding and upper and lower two surface be coated with without aldehyde glue, then the plate that step (2) is made is compounded in its two on the surface feeding press carry out precompressed, glue-spread is 160g/m
2, precompressed parameter is unit pressure 0.3,10 minutes time, and temperature is normal temperature;
(4) slab after step (3) precompressed is sent into hot press and carry out hot pressing, hot compression parameters is unit pressure 0.5MPa, 4 minutes time, temperature 130 DEG C.
Embodiment eight
A kind of preparation method of environmental and ecological plate, it comprises the following steps: the making of (1) high color fastness finish coat, be scattered in by 5 parts of hindered amine light stabilizer UV-765 in 100 parts of melmacs, woodgrained paper carries out first time impregnation process successively in this resin, first time is dry, second time impregnation process, second time are dry;
(2) high color fastness finish coat step (1) made and cushioning balance layer veneer compound are sent into hot press and are carried out hot pressing, and hot pressing parameters is unit pressure 1MPa, 4 minutes time, temperature 130 DEG C;
(3) substrate layer is carried out surely thick sanding and upper and lower two surface be coated with without aldehyde glue, then the plate that step (2) is made is compounded in its two on the surface feeding press carry out precompressed, glue-spread is 190g/m
2, precompressed parameter is unit pressure 0.5,30 minutes time, and temperature is normal temperature;
(4) slab after step (3) precompressed is sent into hot press and carry out hot pressing, hot compression parameters is unit pressure 0.6MPa, 8 minutes time, temperature 120 DEG C.
Embodiment nine
A preparation method for environmental and ecological plate, it comprises the following steps:
(1) making of high color fastness finish coat, be scattered in by 20 parts of hindered amine light stabilizer UV-123 in 100 parts of melmacs, woodgrained paper carries out first time impregnation process successively in this resin, first time is dry, second time impregnation process, second time are dry;
(2) high color fastness finish coat step (1) made and cushioning balance layer veneer compound are sent into hot press and are carried out hot pressing, and hot pressing parameters is unit pressure 0.9MPa, 5 minutes time, temperature 130 DEG C;
(3) substrate layer is carried out surely thick sanding and upper and lower two surface be coated with without aldehyde glue, then the plate that step (2) is made is compounded in its two on the surface feeding press carry out precompressed, glue-spread is 170g/m
2, precompressed parameter is unit pressure 0.3,40 minutes time, and temperature is normal temperature;
(4) slab after step (3) precompressed is sent into hot press and carry out hot pressing, hot compression parameters is unit pressure 1.0MPa, 4 minutes time, temperature 100 DEG C.
The present invention is in described step (1) above, and the technique that light stabilizer is scattered in melmac comprises: 1. take melmac 100 mass parts, light stabilizer 5-20 part; 2. in melmac, add light stabilizer while stirring, mixing speed >=1000 rev/min, light stabilizer is dispersed in resin.
The color fastness to light of environmental and ecological plate of the present invention detects according to the method for GB/T15104-2006, burst size of methanal detects according to the method for GB18580, prepares impregnated paper and use the ecological board of Traditional Environmental-protection urea glue for contrast with the melmac not adding light stabilizer.
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 description, as long as but be all subject to the protection of Patent Law in right of the present invention.
Claims (10)
1. a preparation method for environmental and ecological plate, is characterized in that: it comprises the following steps:
(1) hindered amine light stabilizer is scattered in cyanurotriamide modified resin, then woodgrained paper is carried out successively first time impregnation process, first time drying, second time impregnation process, the dry obtained high color fastness finish coat of second time within it; Successively add nano silicon and 2-imidazolidinone during step (1) second time impregnation process, the addition of nano silicon is the 5-8% of cyanurotriamide modified resin quality, and the addition of 2-imidazolidinone is the 1-3% of cyanurotriamide modified resin quality;
The technique that light stabilizer in described step (1) is scattered in cyanurotriamide modified resin comprises: 1. take cyanurotriamide modified resin 100 parts by mass parts, light stabilizer 5-20 part; 2. in cyanurotriamide modified resin, add light stabilizer while stirring, mixing speed >=1000 rev/min, light stabilizer is dispersed in resin;
(2) high color fastness finish coat step (1) made and cushioning balance layer veneer compound carry out hot pressing;
(3) upper and lower for substrate layer two surfaces are coated with environment-friendlyadhesive adhesive, then the plate that step (2) is made is compounded in the substrate layer scribbling environment-friendlyadhesive adhesive upper and lower two carries out precompressed on the surface;
(4) slab after step (3) precompressed is carried out hot pressing and obtain environmental and ecological plate;
Finally obtained environmental and ecological plate comprises substrate layer, cushioning balance layer and high color fastness finish coat; Described high color fastness finish coat color fastness grade reaches more than 6 grades;
Upper and lower two surfaces of described substrate layer are bonded by environment-friendlyadhesive adhesive and cushioning balance layer;
Described high color fastness finish coat employing impregnated in the woodgrained paper comprised in the cyanurotriamide modified resin of light stabilizer and makes; Described high color fastness finish coat is bonded in above cushioning balance layer;
Described cushioning balance layer is board using poplar board, Eucalyptus veneer or Recombinant Wood veneer;
Described substrate layer is multi-plywood or core-board;
Described environment-friendlyadhesive adhesive is living beings rubber made from soybean cake; Living beings rubber made from soybean cake comprises the mixture that the bean powder of 1:1.5-2.5 in mass ratio and auxiliary agent mix; Living beings rubber made from soybean cake preparation method comprises bean powder and auxiliary agent is stirred 5-20min under rotating speed is the condition of 300-2000r/min, and stir, viscosity controls at 30000-100000cps.
2. a preparation method for environmental and ecological plate, is characterized in that: also comprise nanoscale TiO after step (4) hot pressing
2photocatalyst material, Nano Silver mix in the ratio of 1-2:0.2-0.4:15-20 with UV scratch-resistant finish paint three, dispersed, make the scratch-resistant UV finish paint with antibacterial functions; Then upper finish paint process is carried out, one side coating weight 10-14g/m
2, and with UV lamp, irradiation solidification is carried out to it, thus make antibacterial lacquer painting.
3. the preparation method of a kind of environmental and ecological plate according to claim 2, is characterized in that: the hindered amine light stabilizer in described step (1) is liquid hindered piperidine based compound, and consumption is the 5-20% of cyanurotriamide modified resin quality.
4. the preparation method of a kind of environmental and ecological plate according to claim 3, is characterized in that: described auxiliary agent comprises water, alkali, polyvinyl alcohol, hexamethyl-epoxy chlorobutane, kaolin and isocyanates.
5. the preparation method of a kind of environmental and ecological plate according to claim 4, is characterized in that: the preparation of described cyanurotriamide modified resin comprises first twice melamine addition polycondensation, and then a urea polycondensation makes HCHO/NH
2mol ratio be 0.4-0.6.
6. the preparation method of a kind of environmental and ecological plate according to claim 5, it is characterized in that: during described step (1) second time impregnation process, successively add nano silicon and 2-imidazolidinone, the addition of nano silicon is the 5-8% of cyanurotriamide modified resin quality, and the addition of 2-imidazolidinone is the 1-3% of cyanurotriamide modified resin quality.
7. the preparation method of a kind of environmental and ecological plate according to claim 6, is characterized in that: after described step (2) hot pressing and between step (3) painting environment-friendlyadhesive adhesive, also comprise dyeing process, adopt ternary built dyestuff in dyeing;
Described ternary built dyestuff is liquid hindered piperidine based compound, fire retardant and azo dyes according to the composite ternary built dyestuff of mass ratio 1:25-40:100-300.
8. the preparation method of a kind of environmental and ecological plate according to claim 7, is characterized in that: the substrate layer glue-spread in described step (3) is 160-220g/m
2; Precompressed parameter is unit pressure 0.3-0.7MPa, time 10-40 minute, and temperature is 20-40 DEG C.
9. the preparation method of a kind of environmental and ecological plate according to claim 8, is characterized in that: the environment-friendlyadhesive adhesive in described step (3) is that urea-modified soybean protein, Polyamide-Polyamsne-Epichlorohydrin, nanofiber cellulose solution are according to the blended modified biomass adhesive of mass ratio 15-40:1-3:80-100.
10. the preparation method of a kind of environmental and ecological plate according to claim 9, is characterized in that: the slab hot compression parameters in described step (4) is unit pressure 0.5-1.0MPa, time 4-10 minute, temperature 100 DEG C-130 DEG C.
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Application publication date: 20160203 Assignee: DEHUA TB NEW DECORATION MATERIAL Co.,Ltd. Assignor: DEHUA TB NEW DECORATION MATERIAL Co.,Ltd. Contract record no.: X2022980017761 Denomination of invention: Preparation method of environmental protection ecological board Granted publication date: 20171003 License type: Common License Record date: 20221010 |