CN103802400A - High-strength flame-retardant laminating bamboo plywood and production method thereof - Google Patents
High-strength flame-retardant laminating bamboo plywood and production method thereof Download PDFInfo
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- CN103802400A CN103802400A CN201410027825.2A CN201410027825A CN103802400A CN 103802400 A CN103802400 A CN 103802400A CN 201410027825 A CN201410027825 A CN 201410027825A CN 103802400 A CN103802400 A CN 103802400A
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- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 162
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 162
- 241001330002 Bambuseae Species 0.000 title claims abstract description 162
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 162
- 239000011425 bamboo Substances 0.000 title claims abstract description 162
- 239000003063 flame retardant Substances 0.000 title claims abstract description 28
- 239000011120 plywood Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000010030 laminating Methods 0.000 title abstract 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title abstract 4
- 239000010410 layer Substances 0.000 claims abstract description 77
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000007731 hot pressing Methods 0.000 claims abstract description 14
- 239000005011 phenolic resin Substances 0.000 claims abstract description 12
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 12
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000002265 prevention Effects 0.000 claims description 28
- 238000005470 impregnation Methods 0.000 claims description 26
- 239000003292 glue Substances 0.000 claims description 23
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 17
- 239000011247 coating layer Substances 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 10
- 241001317485 Bambusa tuldoides Species 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- DEIGXXQKDWULML-UHFFFAOYSA-N 1,2,5,6,9,10-hexabromocyclododecane Chemical compound BrC1CCC(Br)C(Br)CCC(Br)C(Br)CCC1Br DEIGXXQKDWULML-UHFFFAOYSA-N 0.000 claims description 6
- VEORPZCZECFIRK-UHFFFAOYSA-N 3,3',5,5'-tetrabromobisphenol A Chemical compound C=1C(Br)=C(O)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(O)C(Br)=C1 VEORPZCZECFIRK-UHFFFAOYSA-N 0.000 claims description 6
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 239000011229 interlayer Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000004026 adhesive bonding Methods 0.000 claims description 4
- 244000025254 Cannabis sativa Species 0.000 claims description 2
- 239000002023 wood Substances 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000007710 freezing Methods 0.000 abstract description 2
- 230000008014 freezing Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 abstract 2
- 239000012792 core layer Substances 0.000 abstract 2
- 230000003068 static effect Effects 0.000 abstract 2
- 239000012790 adhesive layer Substances 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000007373 indentation Methods 0.000 abstract 1
- 238000004321 preservation Methods 0.000 abstract 1
- 229920000877 Melamine resin Polymers 0.000 description 8
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical group NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 8
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 239000002585 base Substances 0.000 description 5
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 244000272329 Phyllostachys congesta Species 0.000 description 3
- 235000006523 Phyllostachys congesta Nutrition 0.000 description 3
- 240000002014 Phyllostachys nigra var. henonis Species 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 238000009954 braiding Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 3
- 238000009941 weaving Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- 230000002742 anti-folding effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- 238000003825 pressing Methods 0.000 description 1
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Images
Abstract
The invention discloses high-strength flame-retardant laminating bamboo plywood and a production method thereof. The high-strength flame-retardant laminating bamboo plywood comprises a fireproof laminating layer and a core layer, and is characterized in that the core layer refers to intermediate layers (1) and (2) between which brominated flame retardants are impregnated and long and short bamboo curtain splints are arranged at intervals; a bamboo mat layer (3), a wood veneer layer (4) and a fireproof laminating layer (5) are sequentially arranged on two sides of the intermediate layers; a phenolic resin adhesive layer is impregnated between every two layers; each layer is subjected to hot-pressing to form a whole sheet. The product is smooth in surface, is not provided with indentation or bubbles, the density is more than or equal to 0.85G/cm<3>, the moisture content is less than or equal to 12 percent, the water absorption rate is less than or equal to 12 percent, the static bending intensity is more than or equal to 90N/mm<2>, the static bending elasticity modulus is more than or equal to 7*103N/mm<2>, and the boiling, freezing and drying preservation degree is more than or equal to 60N/mm<2>. The product is prepared according to national GB8624-2006, and the flame retardant property of the product can reach the GB-S1.d0.t1 level.
Description
Technical field
The present invention relates to a kind of laminar product bamboo offset plate, especially a kind of high-strength anti-flaming bamboo plywood coated with film and production method thereof.
Background technology
As far back as eighties of last century the seventies, China just begins one's study and replaces the relatively slow timber of the speed of growth to produce sheet material with the bamboo wood of fast growth, because bamboo clappers intensity and toughness are higher than timber, its antiacid alkali and adverse environment resistant are again higher than timber, thereby be widely used, especially high strength film laminated bamboo plywood, the sheet material of making raw material and become through HTHP base with bamboo wood material, because high strength film laminated bamboo plywood hardness is high, anti-folding, compression strength are large, acid and alkali-resistance and be widely used in mine door, building shut die, multiple fields such as railway carriage casing, big machinery packing.But because bamboo board research and development production is more late, its fire-retardant research is less, and it exists inflammable hidden danger in producing, store, transport and using.
Summary of the invention
The object of the invention is to overcome the deficiency after prior art, a kind of high-strength anti-flaming bamboo plywood coated with film and production method thereof are provided.Object of the present invention realizes by following technical proposals: high-strength anti-flaming bamboo plywood coated with film comprises that PLASTIC LAMINATED surface layer and sandwich layer is characterized in that sandwich layer is that alternate intermediate layer, the both sides, intermediate layer of length bamboo curtain splint that are soaked with bromide fire retardant are provided with bamboo mat layer, wooden cortex, above-mentioned each interlayer all has phenolic resins glue-line, and through being hot pressed into an overall sheet material.
It can be individual layer bamboo curtain splint that described intermediate layer needs according to thickness, can be also several layers of bamboo curtain splint layer.
Described bamboo mat layer can be individual layer, also can be several layers.
Production method of the present invention is as follows:
1, first dwarf bamboo is blocked into Len req, cut open sheet and go green grass or young crops and be woven into bamboo mat or bamboo curtain splint, natural airing or dry or dry for standby;
2,, according to the big or small needs of bamboo plywood coated with film, purchasing veneer is that wooden skin is for subsequent use;
3, as required, purchase fire prevention overlay film for subsequent use;
4, preparation bromide fire retardant solution, being mixed with weight ratio by deca-BDE, tetrabromobisphenol A or HBCD any or several is that the aqueous solution of 10-15% is for subsequent use;
5, soak fire retardant, bamboo mat, bamboo curtain splint, wooden single-skin drum are dipped in bromide fire retardant solution, 2-3 hour under normal temperature, pulls bamboo mat, bamboo curtain splint, wooden single-skin drum out and dries in the air after water, and it is that 10-14% is for subsequent use that 60-80 degree is dried to water content;
6, preparation solids content is 45-49% phenolic resin glue;
7, impregnation, carry out bamboo mat, bamboo curtain splint, wooden skin impregnation respectively, the impregnation time is 10-25 minute;
8, the glue that dries in the air, dry in the air after glue 70-120 minute, then row 100-120 ℃ is dried to water content 8-14% after impregnation or gluing;
9, assembly, by fire prevention overlay film, veneer, bamboo mat, the alternate assembly of long and short bamboo curtain splint, finally inserts bamboo mat, wooden skin and fire prevention overlay film again;
10, hot pressing, arrangement, send into above-mentioned group of good base in hot press, and hot pressing keep 18-60 minute under 135-140 ℃, unit pressure 3.0～3.2Mpa condition is cooled to 60 ℃ of step-downs when following, carries out limit clearly and arrange after taking-up.
This product has following advantage: the present invention selects bromide fire retardant solution to soak bamboo mat, bamboo curtain splint, veneer, good flame retardation effect, and the coating layer of in addition preventing fires, makes whole product fire resistance reach GB-S1.d0.t1 level.The intermiscibility of bromide fire retardant of the present invention and phenolic resin glue is good, easy to use, does not need precompressed, has improved operating efficiency, glues together more firmly, there will not be foaming aliquation phenomenon, makes between flaggy gummed more abundant.This product after testing indices all meets or exceeds national standard, and this product surface face is smooth, without impression, and without bubbling, density>=0.85G/cm
3, moisture content≤12%, water absorption rate≤12%, MOR>=90N/mm
2, modulus of elasticity>=7 × 103N/mm
2, poach, freezing, kept dry degree>=60N/mm
2.By national GB 8624-2006 regulation, this product fire resistance reaches GB-S1.d0.t1 level.Concrete technical indicator is as follows after testing: (pressing the GB 8624-2006 detection side science of law detects), burn-rate exponent (F/GRA), W/S 114, total heat release (THR600s) in 600s, MS 6.8, flue gas generating rate index (SMOGRA), m
2/ s2 0, total smoke-producing amount (TSP600s) in 600s, m
222, detect flame cusp height (FS), mm 60 by the GB/T8626-2007 method of inspection.
Accompanying drawing explanation
Fig. 1 is product structure schematic diagram of the present invention.
The specific embodiment
Embodiment 1, as shown in Figure 1, the present invention includes fire prevention coating layer and sandwich layer, it is characterized in that: sandwich layer is the alternate intermediate layer 1,2 of long and short bamboo curtain splint that is soaked with bromide fire retardant, both sides, intermediate layer are provided with bamboo mat layer 3, wooden cortex 4 coating layer 5 of preventing fires successively, above-mentioned each interlayer is all soaked with phenolic resins glue-line, and each layer through being hot pressed into an overall sheet material.
Described fire prevention coating layer is melamine decorative layer or poly-amino thin layer.
It can be long and short alternate double-deck bamboo curtain splint that described intermediate layer needs according to thickness, can be also several layers of long and short alternate bamboo curtain splint layer.
Described bamboo mat layer can be double-deck, also can be several layers.
The production method of product of the present invention follows these steps to carry out:
1, select without going mouldy, rotten, the dwarf bamboo raw material of damaging by worms as required length block and cut open sheet, be woven into bamboo curtain splint or seat is for subsequent use, said dwarf bamboo is fishscale bamboo, non-irrigated bamboo and wood bamboo, henon bamboo, Lei Zhu, Fang Zhu etc. any or several bamboo curtain splint, bamboo mat when braiding gapless substantially, four limits are neat, and short thin bamboo strips used for weaving can not be connected into long thin bamboo strip;
2,, purchase veneer, wooden skin thickness is 1.2mm, area 1.27～1.3 × 0.83～0.90m, and every square metre of wooden comb in surface must not exceed 2 places, its maximum impaired area≤500mm
2, surface must not attachedly be stained with adhesive tape, rope or other attached sticky thing;
3, as required, purchase fire prevention overlay film for subsequent use, described fire prevention overlay film is impregnated melamine finishing paper, polyurethane book film or other fire prevention overlay film; The present embodiment is selected melamine decorative paper;
4, preparation bromide fire retardant solution, being mixed with weight ratio by deca-BDE, tetrabromobisphenol A or HBCD any or several is that 10% the aqueous solution is for subsequent use; The present embodiment is selected deca-BDE;
5, soak fire retardant, bamboo mat, bamboo curtain splint, wooden single-skin drum are dipped in bromide fire retardant solution, lower 2 hours of normal temperature, pulls bamboo mat, bamboo curtain splint, wooden single-skin drum out and dries in the air after water, 60 degree dry to water content be 14%;
6, preparation solids content is 45% phenolic resin glue;
7, impregnation, carry out bamboo mat, bamboo curtain splint, wooden skin impregnation respectively, the impregnation time is 10-25 minute; Impregnation resin content bamboo mat is 0.176-0.19Kg/m
2, bamboo curtain splint is 0.12-0.135Kg/m
2, wooden skin is controlled at 0.53-0.65Kg/m
2, 2800mm × 1320mm seat impregnation resin content is controlled at 0.68Kg/ and opens, and 2800mm × 1320mm bamboo curtain splint is controlled at 0.44Kg/ and opens, and wooden skin is 0.62Kg;
8, the glue that dries in the air, glue dries in the air after impregnation, the glue time bamboo curtain splint that dries in the air is 70 minutes, bamboo mat and wooden skin are 100 minutes, again the bamboo mat, bamboo curtain splint, the wooden skin that dry in the air after glue are placed on 100 ℃ of net formula dryers or ageing to desired moisture content, wherein bamboo mat is moisture is to be 8%, curtain water content 10%, wooden skin water content 14 %;
9, assembly, by fire prevention overlay film, veneer, bamboo mat, short bamboo curtain splint, long bamboo curtain splint, short bamboo curtain splint, long bamboo curtain splint, bamboo mat, wooden single-skin drum, fire prevention overlay film order assembly, when assembly, should notice that wooden single-skin drum can not have gap, can not fold core, bamboo curtain splint can not be folded core, when assembly, should first select longitudinal and transverse each datum level, and every datum level should be identical, occur curtain or seat polishing that disrepair phenomenon application specification is equal; Needing bamboo curtain splint layer according to thickness can be long and short alternate double-deck bamboo curtain splint, can be also several layers of long and short alternate bamboo curtain splint layer, and described bamboo mat layer can be double-deck, also can be several layers;
10, hot pressing;
A, blanket are sent to after heating platen machine, and every blanket datum level must align, 60 ℃ of temperature < while entering base;
B, can open steam when boosting and heat up, steam pressure can not be too large, requires 135-140 ℃ as long as can reach hot pressing temperature.The present embodiment is selected 135 ℃, unit pressure 3.0MPa, and the hot pressing retention time determines according to thickness of slab, 25mm mine air door plate 60 minutes;
C, cooling: temperature drops to 60 ℃ could step-down when following, generally must drop to 55 ℃ following (high-strength anti-flaming bamboo plywood coated with film internal temperatures), and pressure is just can open taking-up at 1 o'clock, carries out limit arrangement clearly after taking-up; Washed ore after Puttying.
Described fire prevention coating layer is melamine decorative layer or poly-amino thin layer.
It can be long and short alternate double-deck bamboo curtain splint that described intermediate layer needs according to thickness, can be also several layers of long and short alternate bamboo curtain splint layer.
Described bamboo mat layer can be double-deck, also can be several layers.
The production method of product of the present invention follows these steps to carry out:
1, select without going mouldy, rotten, the dwarf bamboo raw material of damaging by worms as required length block and cut open sheet, be woven into bamboo curtain splint or seat is for subsequent use, said dwarf bamboo is fishscale bamboo, non-irrigated bamboo and wood bamboo, henon bamboo, Lei Zhu, Fang Zhu etc. any or several bamboo curtain splint, bamboo mat when braiding gapless substantially, four limits are neat, and short thin bamboo strips used for weaving can not be connected into long thin bamboo strip;
2, purchase veneer, wooden skin thickness is 1.2mm, area 1.27～1.3 × 0.83～0.90m, and every square metre of wooden comb in surface must not exceed 2 places, its maximum impaired area≤500mm
2, surface must not attachedly be stained with adhesive tape, rope or other attached sticky thing;
3, as required, purchase fire prevention overlay film for subsequent use, described fire prevention overlay film is impregnated melamine finishing paper, polyurethane book film or other fire prevention overlay film; The present embodiment is selected polyurethane book film;
4, preparation bromide fire retardant solution, being mixed with weight ratio by deca-BDE, tetrabromobisphenol A or HBCD any or several is that 15% the aqueous solution is for subsequent use; The present embodiment is selected tetrabromobisphenol A;
5, soak fire retardant, bamboo mat, bamboo curtain splint, wooden single-skin drum are dipped in bromide fire retardant solution, lower 2.3 hours of normal temperature, pulls bamboo mat, bamboo curtain splint, wooden single-skin drum out and dries in the air after water, 80 degree dry to water content be 10%;
6, preparation solids content is 45-49% phenolic resin glue;
7, impregnation, carry out bamboo mat, bamboo curtain splint, wooden skin impregnation respectively, the impregnation time is 10-25 minute; Impregnation resin content bamboo mat is 0.176-0.19Kg/m
2, bamboo curtain splint is 0.12-0.135Kg/m
2, wooden skin is controlled at 0.53-0.65Kg/m
2, 2800mm × 1320mm seat impregnation resin content is controlled at 0.68Kg/ and opens, and 2800mm × 1320mm bamboo curtain splint is controlled at 0.44Kg/ and opens, and wooden skin is 0.62Kg;
8, the glue that dries in the air, glue dries in the air after impregnation or gluing, the glue time bamboo curtain splint that dries in the air is 70-90 minute, bamboo mat and wooden skin are 100-120 minute, again the bamboo mat, bamboo curtain splint, the wooden skin that dry in the air after glue are placed on 100-120 ℃ of net formula dryer or ageing to desired moisture content, wherein bamboo mat is moisture is to be 14%, curtain water content 8%, wooden skin water content 10 %;
9, assembly, by fire prevention overlay film, veneer, bamboo mat, short bamboo curtain splint, long bamboo curtain splint, short bamboo curtain splint, long bamboo curtain splint, bamboo mat, wooden single-skin drum, fire prevention overlay film order assembly, when assembly, should notice that wooden single-skin drum can not have gap, can not fold core, bamboo curtain splint can not be folded core, when assembly, should first select longitudinal and transverse each datum level, and every datum level should be identical, occur curtain or seat polishing that disrepair phenomenon application specification is equal;
10, hot pressing;
A, blanket are sent to after heating platen machine, and every blanket datum level must align, 60 ℃ of temperature < while entering base;
B, can open steam when boosting and heat up, steam pressure can not be too large, requires 135-140 ℃ as long as can reach hot pressing temperature.The present embodiment is selected 140 ℃, unit pressure 3.2MPa, and the hot pressing retention time determines according to thickness of slab, 10mm door-plate 18 minutes;
C, cooling: temperature drops to 60 ℃ could step-down when following, generally must drop to 55 ℃ following (high-strength anti-flaming bamboo plywood coated with film internal temperatures), and pressure is just can open taking-up at 1 o'clock, carries out limit arrangement clearly after taking-up; Washed ore after Puttying.
Described fire prevention coating layer is melamine decorative layer or poly-amino thin layer.
It can be long and short alternate double-deck bamboo curtain splint that described intermediate layer needs according to thickness, can be also several layers of long and short alternate bamboo curtain splint layer.
Described bamboo mat layer can be double-deck, also can be several layers.
The production method of product of the present invention follows these steps to carry out:
1, select without going mouldy, rotten, the dwarf bamboo raw material of damaging by worms as required length block and cut open sheet, be woven into bamboo curtain splint or seat is for subsequent use, said dwarf bamboo is fishscale bamboo, non-irrigated bamboo and wood bamboo, henon bamboo, Lei Zhu, Fang Zhu etc. any or several bamboo curtain splint, bamboo mat when braiding gapless substantially, four limits are neat, and short thin bamboo strips used for weaving can not be connected into long thin bamboo strip;
2, purchase veneer, wooden skin thickness is 1.2mm, area 1.27～1.3 × 0.83～0.90m, and every square metre of wooden comb in surface must not exceed 2 places, its maximum impaired area≤500mm
2, surface must not attachedly be stained with adhesive tape, rope or other attached sticky thing;
3, as required, purchase fire prevention overlay film for subsequent use, described fire prevention overlay film is impregnated melamine finishing paper, polyurethane book film or other fire prevention overlay film; The present embodiment is selected melamine decorative paper;
4, preparation bromide fire retardant solution, being mixed with weight ratio by deca-BDE, tetrabromobisphenol A or HBCD any or several is that 13% the aqueous solution is for subsequent use; The present embodiment is selected HBCD;
5, soak fire retardant, bamboo mat, bamboo curtain splint, wooden single-skin drum be dipped in bromide fire retardant solution, lower 3 hours of normal temperature, pull out bamboo mat, bamboo curtain splint, wooden single-skin drum dry in the air after water 70 degree dry to water content be 8%;
6, preparation solids content is 47% phenolic resin glue;
7, impregnation, carry out bamboo mat, bamboo curtain splint, wooden skin impregnation respectively, the impregnation time is 10-25 minute; Impregnation resin content bamboo mat is 0.176-0.19Kg/m
2, bamboo curtain splint is 0.12-0.135Kg/m
2, wooden skin is controlled at 0.53-0.65Kg/m
2, 2800mm × 1320mm seat impregnation resin content is controlled at 0.68Kg/ and opens, and 2800mm × 1320mm bamboo curtain splint is controlled at 0.44Kg/ and opens, and wooden skin is 0.62Kg;
8, the glue that dries in the air, glue dries in the air after impregnation or gluing, the glue time bamboo curtain splint that dries in the air is 90 minutes, bamboo mat and wooden skin are 100 minutes, again the bamboo mat, bamboo curtain splint, the wooden skin that dry in the air after glue are placed on 120 ℃ of net formula dryers or ageing to desired moisture content, wherein bamboo mat is moisture is to be 10%, curtain water content 10%, wooden skin water content 10 %;
9, assembly, by fire prevention overlay film, veneer, bamboo mat, short bamboo curtain splint, long bamboo curtain splint, short bamboo curtain splint, long bamboo curtain splint, bamboo mat, wooden single-skin drum, fire prevention overlay film order assembly, when assembly, should notice that wooden single-skin drum can not have gap, can not fold core, bamboo curtain splint can not be folded core, when assembly, should first select longitudinal and transverse each datum level, and every datum level should be identical, occur curtain or seat polishing that disrepair phenomenon application specification is equal;
10, hot pressing;
A, blanket are sent to after heating platen machine, and every blanket datum level must align, 60 ℃ of temperature < while entering base;
B, can open steam when boosting and heat up, steam pressure can not be too large, requires 135-140 ℃ as long as can reach hot pressing temperature.The present embodiment is selected 138 ℃, unit pressure 3.1MPa, and the hot pressing retention time determines according to thickness of slab, 20 mm mine air door plates 50 minutes;
C, cooling: temperature drops to 60 ℃ could step-down when following, generally must drop to 55 ℃ following (high-strength anti-flaming bamboo plywood coated with film internal temperatures), and pressure is just can open taking-up at 1 o'clock, carries out limit arrangement clearly after taking-up; Washed ore after Puttying.
Claims (4)
1. a high-strength anti-flaming bamboo plywood coated with film, comprise and prevent fires overlay film layer by layer and sandwich layer, it is characterized in that: sandwich layer is alternate intermediate layer (1), (2) of long and short bamboo curtain splint that are soaked with bromide fire retardant, both sides, intermediate layer are provided with bamboo mat layer (3), wooden cortex (4) successively, fire prevention coating layer (5), above-mentioned each interlayer is all soaked with phenolic resins glue-line, and each layer through being hot pressed into an overall sheet material.
2. a kind of high-strength anti-flaming bamboo plywood coated with film according to claim 1, is characterized in that: described intermediate layer is long and short alternate double-deck bamboo curtain splint or several layers of long and short alternate bamboo curtain splint layer.
3. a kind of high-strength anti-flaming bamboo plywood coated with film according to claim 1, is characterized in that: described bamboo mat layer is double-deck or several layers.
4. a production method for high-strength anti-flaming bamboo plywood coated with film, is characterized in that, follows these steps to carry out:
(1) first dwarf bamboo is blocked into Len req, cut open sheet and go green grass or young crops and be woven into bamboo mat or bamboo curtain splint, natural airing or dry or dry for standby;
(2), according to the big or small needs of bamboo plywood coated with film, purchasing veneer is that wooden skin is for subsequent use;
(3) as required, purchase fire prevention overlay film for subsequent use;
(4) preparation bromide fire retardant solution, being mixed with weight ratio by deca-BDE, tetrabromobisphenol A or HBCD any or several is that the aqueous solution of 10-15% is for subsequent use;
(5) soak fire retardant, bamboo mat, bamboo curtain splint, wooden single-skin drum are dipped in bromide fire retardant solution, 2-3 hour under normal temperature, pulls bamboo mat, bamboo curtain splint, wooden single-skin drum out and dries in the air after water, and it is that 10-14% is for subsequent use that 60-80 degree is dried to water content;
(6) preparation solids content is 45-49% phenolic resin glue;
(7) impregnation, carry out bamboo mat, bamboo curtain splint, wooden skin impregnation respectively, the impregnation time is 10-25 minute;
(8) glue that dries in the air, dry in the air after glue 70-120 minute, then row 100-120 ℃ is dried to water content 8-14% after impregnation or gluing;
(9) assembly, by fire prevention overlay film, veneer, bamboo mat, the alternate assembly of long and short bamboo curtain splint, finally inserts bamboo mat, wooden skin and fire prevention overlay film again;
(10) hot pressing, arrangement, send into above-mentioned group of good base in hot press, and hot pressing keep 18-60 minute under 135-140 ℃, unit pressure 3.0～3.2Mpa condition is cooled to 60 ℃ of step-downs when following, carries out limit clearly and arrange after taking-up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN104015233A (en) * | 2014-05-23 | 2014-09-03 | 安徽清保竹业有限公司 | Production process of bamboo plywood |
| CN104723418A (en) * | 2015-04-15 | 2015-06-24 | 章冬华 | Technology for processing fireproof bamboo plywood |
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