CN100586676C - Method for preparing flame-proof plywood - Google Patents
Method for preparing flame-proof plywood Download PDFInfo
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- CN100586676C CN100586676C CN200710144388A CN200710144388A CN100586676C CN 100586676 C CN100586676 C CN 100586676C CN 200710144388 A CN200710144388 A CN 200710144388A CN 200710144388 A CN200710144388 A CN 200710144388A CN 100586676 C CN100586676 C CN 100586676C
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Abstract
A manufacturing method for fire resistant veneer relates to a manufacturing method for veneer. The present invention solves the problem that the present veneers are combustible. The present inventionof fire resistant veneer is manufactured by the following steps that a multi-effect wood fire retardant and solution are manufactured; soaking or coating and drying; gelatinization, assembly and hot pressure; in this way, the fire resistant veneer is obtained. The present invention of fire resistant veneer has the effect of fire retardation and smoke restraint and the present invention is antiseptic, mold resistant and mothproof.
Description
Technical field
The present invention relates to a kind of preparation method of glued board.
Background technology
Glued board is widely used in fields such as furniture, interior decoration and building industry, but because the inflammability of glued board is also brought very big disaster hidden-trouble.The generation of fire causes because of wood materials lacks fire resistance often.
Summary of the invention
The present invention has the inflammable problem of glued board now in order to solve, and a kind of preparation method of flame-retardant plywood is provided.
A kind of flame-retardant plywood of the present invention is prepared as follows: one, the preparation of multiple-effect fire retardant: by weight 17～21 parts of boric acid, 24～56 parts of phosphoric acid dicyandiamidines, 24～56 parts of ammonium dihydrogen phosphate (ADP)s, 0.1～1.5 part of water softening agent and 0.1～2 part of mould inhibitor are mixed, obtain multiple-effect wood fire retardant; Two, to be mixed with mass concentration be 10%～30% the aqueous solution to the multiple-effect wood fire retardant that step 1 is made; Three, wood single-plate is dipped in the multiple-effect wood fire retardant aqueous solution 0.5～180 hour or the wood single-plate external coating multiple-effect wood fire retardant aqueous solution 3～20 times, being dried to moisture content again under 60～170 ℃ condition is 8%～12%; Four, be coated with fire retardant glue on the surface of dried timber veneer, the orthogonal assembly of neighbouring layer veneer grain direction is sawed the limit, sanding after hot pressing; Promptly obtain flame-retardant plywood.
Fire retardant glue among the present invention is that the multiple-effect wood fire retardant that step 1 makes is dissolved in urea-formaldehyde resin adhesive, cyanurotriamide modified urea resin glue or the agent of isocyanates gluing, and formation multiple-effect wood fire retardant mass concentration is 8%～30% fire retardant glue.
The material of wood single-plate of the present invention is poplar, Korean pine, China fir, birch, paulownia, larch, Manchurian ash, elm, eucalyptus, masson pine, torch pine, wet-land pine tree or pinus sylvestris var. mongolica.
Water softening agent among the present invention is ethylenediamine tetra-acetic acid and/or sodium ethylene diamine tetracetate.
Mould inhibitor among the present invention in the multiple-effect wood fire retardant is a kind of or wherein several combination in Sodium Benzoate, sodium Diacetate, dodecyl benzyl dimethyl ammonium chloride, dichloroethylene salicylamide, oxine ketone, Bravo, carbendazim, the dichlorophene.
The flame-retardant plywood that the present invention makes can be pasted decorative veneer on the surface to prepare fire-retardant veneer overlay wood veneer, when the thickness of decorative veneer during greater than 0.3mm, at the multiple-effect wood fire retardant aqueous solution of the back side of decorative veneer brushing step 2, perhaps after decorative veneer and flame-retardant plywood assembly with the surface of the multiple-effect wood fire retardant aqueous solution brushing decorative veneer of step 2; When the thickness of decorative veneer during, decorative veneer is coated with after the fire retardant glue of step 4 directly and the flame-retardant plywood assembly less than 0.3mm.
Gluing of the present invention, assembly, hot pressing, saw limit, sanding are conventional method, and the glue-spread of fire retardant glue is every square metre of veneer 100～200g in the step 4.
The flame-retardant plywood of the present invention preparation need not processing through various medicaments and just can reach flame-retardant smoke inhibition, anticorrosion, mildew-resistant, mothproof effect.At hot irradiation power is 50kW/m
2Condition under, the peak heat rate of release is reduced to 45%～50% of plain plate, the average HRR is reduced to 45%～50% of plain plate, cigarette rate of release peak value is reduced to 50%～55% of plain plate; Cigarette discharges fast average and reduces to 9%～12% of plain plate, illustrates that flame-retardant plywood flame-retardant smoke inhibition of the present invention is effective.
The specific embodiment
The specific embodiment one: the flame-retardant plywood of present embodiment is prepared as follows: one, the preparation of multiple-effect fire retardant: by weight 17～21 parts of boric acid, 24～56 parts of phosphoric acid dicyandiamidines, 24～56 parts of ammonium dihydrogen phosphate (ADP)s, 0.1～1.5 part of water softening agent and 0.1～2 part of mould inhibitor are mixed, obtain multiple-effect wood fire retardant; Two, to be mixed with mass concentration be 10%～30% the aqueous solution to the multiple-effect wood fire retardant that step 1 is made; Three, wood single-plate is dipped in the multiple-effect wood fire retardant aqueous solution 0.5～180 hour or the wood single-plate external coating multiple-effect wood fire retardant aqueous solution 3～20 times, being dried to moisture content again under 60～170 ℃ condition is 8%～12%; Four, be coated with fire retardant glue on the surface of dried timber veneer, the orthogonal assembly of neighbouring layer veneer grain direction is sawed the limit, sanding after hot pressing; Promptly obtain flame-retardant plywood.
The flame-retardant plywood that present embodiment makes can be pasted decorative veneer on the surface to prepare fire-retardant veneer overlay wood veneer, when the thickness of decorative veneer during greater than 0.3mm, at the multiple-effect wood fire retardant aqueous solution of the back side of fancy veneer brushing step 2, perhaps after decorative veneer and flame-retardant plywood assembly with the surface of the multiple-effect wood fire retardant aqueous solution brushing decorative veneer of step 2; When the thickness of decorative veneer during, decorative veneer is coated with after the fire retardant glue of step 4 directly and the flame-retardant plywood assembly less than 0.3mm.
The specific embodiment two: the difference of the present embodiment and the specific embodiment one is: it is 15%～25% the aqueous solution that the multiple-effect wood fire retardant that in the step 2 step 1 is made is mixed with mass concentration.Other step and parameter are identical with the specific embodiment one.
The specific embodiment three: the difference of the present embodiment and the specific embodiment one is: it is 20% the aqueous solution that the multiple-effect wood fire retardant that in the step 2 step 1 is made is mixed with mass concentration.Other step and parameter are identical with the specific embodiment one.
The specific embodiment four: the difference of the present embodiment and the specific embodiment one is: in the step 3 wood single-plate is dipped in the multiple-effect wood fire retardant aqueous solution 4～18 hours or the wood single-plate external coating multiple-effect wood fire retardant aqueous solution 7～18 times.Other step and parameter are identical with the specific embodiment one.
The specific embodiment five: the difference of the present embodiment and the specific embodiment one is: in the step 3 wood single-plate is dipped in the multiple-effect wood fire retardant aqueous solution 8～14 hours or the wood single-plate external coating multiple-effect wood fire retardant aqueous solution 9～16 times.Other step and parameter are identical with the specific embodiment one.
The specific embodiment six: the difference of the present embodiment and the specific embodiment one is: in the step 3 wood single-plate is dipped in the multiple-effect wood fire retardant aqueous solution 10～12 hours or the wood single-plate external coating multiple-effect wood fire retardant aqueous solution 11～14 times.Other step and parameter are identical with the specific embodiment one.
The specific embodiment seven: the difference of the present embodiment and the specific embodiment one is: in the step 3 wood single-plate is dipped in the multiple-effect wood fire retardant aqueous solution 8 hours or the wood single-plate external coating multiple-effect wood fire retardant aqueous solution 12 times.Other step and parameter are identical with the specific embodiment one.
The specific embodiment eight: the difference of the present embodiment and the specific embodiment one is: being dried to moisture content in the step 3 under 80 ℃ condition is 10%.Other step and parameter are identical with the specific embodiment one.
The specific embodiment nine: the difference of the present embodiment and the specific embodiment one is: the glue-spread of fire retardant glue is every square metre of veneer 100～200g in the step 4.Other step and parameter are identical with the specific embodiment one.
The specific embodiment ten: the difference of the present embodiment and the specific embodiment one is: fire retardant glue is that the multiple-effect wood fire retardant that step 1 makes is dissolved in urea-formaldehyde resin adhesive, cyanurotriamide modified urea resin glue or the agent of isocyanates gluing in the step 4, and formation multiple-effect wood fire retardant mass concentration is 8%～30% fire retardant glue.Other step and parameter are identical with the specific embodiment one.
The specific embodiment 11: the difference of the present embodiment and the specific embodiment one is: the water softening agent in the step 1 is ethylenediamine tetra-acetic acid and/or sodium ethylene diamine tetracetate.Other is identical with the specific embodiment one.
When being two kinds of materials compositions, mixes water softening agent in the present embodiment by arbitrary proportion.
The specific embodiment 12: the difference of the present embodiment and the specific embodiment one is: the mould inhibitor in the step 1 is a kind of or wherein several combination in Sodium Benzoate, sodium Diacetate, dodecyl benzyl dimethyl ammonium chloride, dichloroethylene salicylamide, oxine ketone, Bravo, carbendazim, the dichlorophene.Other is identical with the specific embodiment one.
Pressing arbitrary proportion in the present embodiment when mould inhibitor is formed for two or more material mixes.
The specific embodiment 13: the difference of the present embodiment and the specific embodiment one is: the material of the wood single-plate in the step 3 is poplar, Korean pine, China fir, birch, paulownia, larch, Manchurian ash, elm, eucalyptus, masson pine, torch pine, wet-land pine tree or pinus sylvestris var. mongolica.Other step and parameter are identical with the specific embodiment one.
The specific embodiment 14: the flame-retardant plywood of present embodiment is prepared as follows: one, the preparation of multiple-effect fire retardant: by weight 18 parts of boric acid, 30 parts of phosphoric acid dicyandiamidines, 52 parts of ammonium dihydrogen phosphate (ADP)s, 1 part of water softening agent and 1.5 parts of mould inhibitors are mixed, obtain multiple-effect wood fire retardant; Two, to be mixed with mass concentration be 25% the aqueous solution to the multiple-effect wood fire retardant that step 1 is made; Three, board using poplar board is dipped in the multiple-effect wood fire retardant aqueous solution 3 hours, being dried to moisture content again under 80 ℃ condition is 10%; Four, the face of pasting at dried board using poplar board is coated with fire retardant glue, and the orthogonal assembly of neighbouring layer veneer grain direction is sawed the limit, sanding after hot pressing; Promptly obtain flame-retardant plywood.
Water softening agent in the present embodiment is the mixture that ethylenediamine tetra-acetic acid, sodium ethylene diamine tetracetate mix by 1: 1 weight ratio.
Mould inhibitor in the present embodiment is a Sodium Benzoate.
Fire retardant glue in the present embodiment is dissolved in urea-formaldehyde resin adhesive for the multiple-effect wood fire retardant with step 1, and formation multiple-effect wood fire retardant mass concentration is 30% fire retardant glue.
The glue-spread of fire retardant glue is every square metre of veneer 150g in the step 4 of present embodiment.
It is 50kW/m at hot irradiation power that glued board that present embodiment makes and plain plate adopt taper calorimeter (CONE) method
2Condition under the fire-retardant and smoke suppressing of test material, test result is as shown in table 1.
Table 1
| Sample | Peak heat rate of release (pk-HRR)/(kW/m 2) | Average HRR (HRR) (180s)/(kW/m 2) | Total heat burst size (THR) (180s)/(MJ/m 2) | The peak value cigarette is released speed (pk-RSR)/(m 2/m 2·s) | Average cigarette rate of release (RSR) (180s)/(m 2/m 2·s) | Total smoke release (TSR) (180s)/(m 2/m 2) |
| Plain plate | 288.8 | 178.8 | 31.1 | 1.81 | 0.83 | 151.7 |
| Fire-retardant plate | 139.2 | 83.1 | 14.7 | 0.96 | 0.08 | 11.8 |
The flame-retardant plywood flame-retardant smoke inhibition that table 1 explanation present embodiment makes is effective.
Claims (10)
1, a kind of preparation method of flame-retardant plywood, it is prepared according to following steps: one, the preparation of multiple-effect fire retardant; Two, the preparation of fire resistant fluid; Three, in fire resistant fluid, soak wood single-plate or with the fire resistant fluid brushing on the wood single-plate surface, dry then; Four, be coated with fire retardant glue on the wood single-plate surface, after assembly, hot pressing, saw limit, sanding, obtain flame-retardant plywood again; It is characterized in that the described multiple-effect fire retardant of step 1 mixes 17～21 parts of boric acid, 24～56 parts of phosphoric acid dicyandiamidines, 24～56 parts of ammonium dihydrogen phosphate (ADP)s, 0.1～1.5 part of water softening agent and 0.1～2 part of mould inhibitor by weight obtains; The described fire resistant fluid of step 2 is that the multiple-effect wood fire retardant that step 1 makes is mixed with mass concentration is 10%～30% the aqueous solution; In the step 3 wood single-plate is dipped in the multiple-effect wood fire retardant aqueous solution 0.5～180 hour or the wood single-plate external coating multiple-effect wood fire retardant aqueous solution 3～20 times, being dried to moisture content again under 60～170 ℃ condition is 8%～12%; Assembly is orthogonal the carrying out of direction according to neighbouring layer veneer texture in the step 4.
2, the preparation method of a kind of flame-retardant plywood according to claim 1 is characterized in that it is 15%～25% the aqueous solution that the multiple-effect wood fire retardant that in the step 2 step 1 is made is mixed with mass concentration.
3, the preparation method of a kind of flame-retardant plywood according to claim 1 is characterized in that in the step 3 wood single-plate is dipped in the multiple-effect wood fire retardant aqueous solution 8～14 hours or the wood single-plate external coating multiple-effect wood fire retardant aqueous solution 9～16 times.
4, the preparation method of a kind of flame-retardant plywood according to claim 1 is characterized in that in the step 3 wood single-plate is dipped in the multiple-effect wood fire retardant aqueous solution 8 hours or the wood single-plate external coating multiple-effect wood fire retardant aqueous solution 12 times.
5, the preparation method of a kind of flame-retardant plywood according to claim 1 is characterized in that being dried to moisture content in the step 3 under 80 ℃ condition is 10%.
6, the preparation method of a kind of flame-retardant plywood according to claim 1, it is characterized in that the fire retardant glue in the step 4 is that the multiple-effect wood fire retardant that step 1 makes is dissolved in urea-formaldehyde resin adhesive, cyanurotriamide modified urea resin glue or the agent of isocyanates gluing, formation multiple-effect wood fire retardant mass concentration is 8%～30% fire retardant glue.
7, the preparation method of a kind of flame-retardant plywood according to claim 1, the material that it is characterized in that the wood single-plate in the step 3 is poplar, Korean pine, China fir, birch, paulownia, larch, Manchurian ash, elm, eucalyptus, masson pine, torch pine, wet-land pine tree or pinus sylvestris var. mongolica.
8, the preparation method of a kind of flame-retardant plywood according to claim 1, the glue-spread that it is characterized in that fire retardant glue in the step 4 are every square metre of veneer 100～200g.
9, the preparation method of a kind of flame-retardant plywood according to claim 1 is characterized in that the water softening agent in the step 1 is ethylenediamine tetra-acetic acid and/or sodium ethylene diamine tetracetate.
10, the preparation method of a kind of flame-retardant plywood according to claim 1 is characterized in that mould inhibitor in the step 1 is a kind of or wherein several combination in Sodium Benzoate, sodium Diacetate, dodecyl benzyl dimethyl ammonium chloride, dichloroethylene salicylamide, oxine ketone, Bravo, carbendazim, the dichlorophene.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200710144388A CN100586676C (en) | 2007-09-28 | 2007-09-28 | Method for preparing flame-proof plywood |
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| CN200710144388A CN100586676C (en) | 2007-09-28 | 2007-09-28 | Method for preparing flame-proof plywood |
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| CN100586676C true CN100586676C (en) | 2010-02-03 |
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