CN101513745B - Preparation method for composite inflaming retarding core-board - Google Patents
Preparation method for composite inflaming retarding core-board Download PDFInfo
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- CN101513745B CN101513745B CN2009100717244A CN200910071724A CN101513745B CN 101513745 B CN101513745 B CN 101513745B CN 2009100717244 A CN2009100717244 A CN 2009100717244A CN 200910071724 A CN200910071724 A CN 200910071724A CN 101513745 B CN101513745 B CN 101513745B
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Abstract
The invention relates to a preparation method for composite inflaming retarding core-board. The technology of filling a flame retardant by secondary vacuumizing/pressurizing is employed to lead the flame retardant to be more sufficiently dipped into the inside of a core-board strip and improve the inflaming retarding performance of the core-board strip. The flame retardant employs a non-halogen water-base environmental-friendly compound flame retardant which does not contain formaldehyde, has strong inflaming retarding performance, smoke inhibiting and mould-proof effects. The invention is a manufacture method for employing the low-grade wood or leftover materials after processing like undersized logs and removing the quality and processing defects to produce high-grade composite inflaming retarding core-board. The product of the invention has the characteristics of inflaming retarding, corrosion resistance, environment protection, heat preservation, sound isolation, and easy processing, and is an ideal fire-proof inflaming retarding material for the industries like furniture, door manufacture, and building decoration.
Description
(1) technical field
The present invention relates to the core-board preparing technical field, particularly a kind of preparation method of utilizing low-grade timber such as undersized log or processing limit pin clout to produce high-grade composite inflaming retarding core-board.
(2) background technology
Core-board is widely used in fields such as furniture, interior decoration and decorative architecture industry, but because there is very big disaster hidden-trouble in the inflammability of core-board.The generation of fire causes because of wood materials shortage fire resistance often.Though the flame retardant blockboard of some plant produced has certain fire resistance, but because joinery core board and paddle are not handled through special technique in process of production, cause the uneven and certain residual stress of the inner adjacent batten moisture content of joinery core board, the influence that changed by environment temperature, humidity, the central layer batten be out of shape and tide swollen inconsistent, can be presented at the surface of core-board, make the plate face scraggly wooden unit trace occur, have a strong impact on decorative quality.So common flame retardant blockboard can only be made low-grade furniture and ornament materials uses.
(3) summary of the invention
The object of the present invention is to provide a kind of low-grade sheet material or processing limit pin clouts such as undersized log of utilizing, reject material and manufacturing deficiency, makes a kind of preparation method with composite inflaming retarding core-board of fire-retardant, anticorrosion, environmental protection, insulation, sound insulation, workability energy.
The object of the present invention is achieved like this: it may further comprise the steps:
1), the making of fire-retardant joinery core board bar, utilize low-grade timber or processing limit pin clouts such as undersized log, reject material and manufacturing deficiency and be processed into the central layer bar;
2), adopt secondary vacuum pumping/pressurization to inject the fire retardant technology, make fire retardant more fully immerse central layer bar inside, improve central layer bar fire resistance, the whole fire resistance rating of raising flame retardant blockboard;
3), after the joinery core board bar injects fire retardant, inserting concentration is to soak 1-2 minute in the 2 ‰ modification liquid, improves bonding strength and water logging peel strength;
4), the preparation method of joinery core board blank sanding after the conditional equilibrium of constant temperature, constant humidity is handled 15-30 days, can significantly improve the resistance to overturning and the presentation quality of core-board;
5), the table backboard can adopt timber rotary-cut or sliced veneer or other fire-proof board, thickness is generally 0.2-1.6mm, can adopt different fire retardant treatment process according to the different of material, thickness and purposes;
6), paddle can be adopted medium density fibre board (MDF) or timber rotary cut venner.As adopt burning-resistant medium density fibreboard, can directly do paddle and use.As adopt 1.0-1.6mm thick timber rotary cut venner to do paddle and need do further flame treatment;
7), with joinery core board, table backboard, the compound composite inflaming retarding core-board finished product of making of paddle hot pressing.
The present invention also has some technical characterictics like this:
1, described fire retardant is selected ALFR type fire retardant for use, its Main Ingredients and Appearance methylol phosphoric acid dicyandiamidines and boric acid.Also can adopt other non-halogen, do not contain formaldehyde, have fire resistance strong, press down cigarette and the anti-effect environmental-friendly water-base fire retardant that goes mouldy, simultaneously according to showing the different of back plate thickness and material, adopt different fire retardants to immerse technology, can significantly improve the resistance to overturning and the presentation quality of core-board, make the table backboard of different-thickness and unlike material have corresponding fire resistance;
2, described joinery core board can be combined into central layer with joiner jigsaw machine, also can adopt the method for tooth punching, finger spreading, jigsaw to be made into integrated joinery core board;
3, described joinery core board blank is under the condition of constant temperature, constant humidity Balance Treatment 15-30 days, and the preparation method of sanding again helps eliminating the residual stress of joinery core board batten, and inner adjacent batten moisture content is reached unanimity.
The technical problem to be solved in the present invention is, utilize low-grade sheet material or processing limit pin clouts such as undersized log, reject material and manufacturing deficiency and make high-grade composite inflaming retarding core-board, solve the inflammable and not high problem of total quality of existing core-board, may further comprise the steps:
1, the preparation of the fire retardant aqueous solution
2, the preparation of flame-retarded resin glue
3, the making of flame retardant blockboard core bar
4, the making of flame retardant blockboard central layer
5, the making of flame retardant blockboard table backboard
6, the making of flame retardant blockboard paddle
7, the making of composite inflaming retarding core-board finished product.
Beneficial effect of the present invention is:
1, the present invention adopts low-grade timber or processing limit pin clouts such as undersized log, rejects material and manufacturing deficiency processing core-board core bar, helps reducing production costs, and improves added value of product, reduces the high-quality lumber consumption, improves the timber comprehensive utilization ratio;
2, the present invention adopts secondary vacuum pumping/pressurization to inject the fire retardant technology, makes fire retardant more fully immerse central layer bar inside, improves central layer bar fire resistance, improves the whole fire resistance rating of flame retardant blockboard;
3, the product that adopts the present invention to make have simultaneously fire-retardant, press down cigarette, anticorrosion, insulation, sound insulation, environmental protection and workability energy;
4, the present invention adopts joinery core board blank preparation method of sanding again after Balance Treatment 15-30 under the condition of constant temperature, constant humidity days, can significantly improve the resistance to overturning and the presentation quality of core-board;
5, the product that adopts the present invention to make is compared with the product that natural timber is made, and has significantly to economize on resources and improve anti-moisture absorption performance and non-deformability.
The present invention relates to a kind of preparation method of composite joiner's board, particularly adopt low-grade timber or processing limit pin clouts such as utilizing undersized log, reject quality and manufacturing deficiency, the preparation method of producing high-grade composite inflaming retarding core-board.The present invention adopts secondary vacuum pumping/pressurization to inject the fire retardant technology, make fire retardant more fully immerse central layer bar inside, improve central layer bar fire resistance, fire retardant adopts non-halogen, do not contain formaldehyde, the environmental-friendly water-base fire retardant that fire resistance is strong, press down cigarette and the anti-effect of going mouldy.That product has is fire-retardant, anticorrosion, environmental protection, insulation, sound insulation, easy machining characteristics, is furniture, system door, building decoration industry ideal fireproof fire proofing.
(4) description of drawings
Fig. 1 is a process chart of the present invention;
Fig. 2 is the compound schematic diagram of composite inflaming retarding core-board of the present invention.
(5) specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing:
In conjunction with Fig. 1-Fig. 2, present embodiment provides a kind of preparation method of composite inflaming retarding core-board, is that following concrete steps realize:
1, the compound method of fire retardant aqueous solvent: the ALFR type fire retardant that fire retardant is selected for use, it is a kind of non-halogen environmental-friendly water-base fire retardant, do not contain formaldehyde, have strong, the easy infiltration of fire resistance, anti-current mistake, press down cigarette and the anti-effect of going mouldy, its Main Ingredients and Appearance methylol phosphoric acid dicyandiamidines and boric acid, outward appearance is white flour, molecular formula: OHCH2HNC (NH2) NHCONH2H2PO4+H3BO3.In 15: 85 ratio fire retardant is joined in the warm water about 50 degree during preparation, fully stir and make fire retardant dissolving becoming clear solution.
2, the compound method of flame-retarded resin glue: ALFR type fire retardant is added in the modified urea-formaldehyde resin glue about 50 degree in 15: 85 ratio, and rapidly agitated liquid evenly till.
3, the making of fire-retardant joinery core board bar:
Select low-grade timber or the processing limit pin clouts such as undersized log handled through super-dry for use, reject material and manufacturing deficiency, be processed into the specification of core bar, pile up in vacuum/pressurized canister, be evacuated to vacuum 60-80KPa in jar, kept 20-30 minute.With concentration is that the fire retardant aqueous solution of 12-15% is injected in the jar, slowly be forced into 1.0-1.2MPa, kept 60-120 minute, unload and be depressed into the retardant solution in the emptying jar behind the normal pressure, secondary vacuum pumping is to vacuum 50-70KPa, kept 20-30 minute, and the fire retardant aqueous solution was injected in the jar again, secondary slowly is forced into 1.2-1.5MPa, kept 60-120 minute, unload and be depressed into the retardant solution in the emptying jar behind the normal pressure, be evacuated to vacuum 50-70KPa, keep going out in 20-30 minute jar for three times.It is to soak in the 2 ‰ modification liquid 1-2 minute that the central layer batten is inserted concentration, improves bonding strength and water logging peel strength, dries a back sign indicating number pallet and advances dry kiln and carry out drying, and kiln discharge when moisture content drops to 7-9% is in indoor Balance Treatment more than 72 hours.
4, the making of fire-retardant joinery core board:
The preparation method one of fire-retardant joinery core board: with length and the width of handling well that central layer bar essence is cut, concora crush is extremely stipulated, be coated with flame-retarded resin glue in length and width, with joiner jigsaw machine the central layer bar is combined into the joinery core board blank, after the release under the condition of constant temperature, constant humidity Balance Treatment 15-30 days, make each piece central layer bar moisture content all be tending towards balanced.Abrasive finishing machine abrasive finishing is to specific thickness on the joinery core board blank of handling well, and the joinery core board code-disc that is up to the standards enters next procedure.
The preparation method two of fire-retardant joinery core board: adopt the mode of the tooth punching of central layer bar, finger spreading, jigsaw to make integrated joinery core board.
5, the making of flame retardant blockboard table backboard:
The table backboard adopts timber rotary-cut or sliced veneer, thickness is generally 0.2-1.6mm, when the table back plate thickness is 0.2-0.3mm, do not do fire retardant separately and immerse processing, compound tense plays flame retardant effect by flame-retarded resin glue to the infiltration of table backboard, can reach flame retardant effect 2～4 times at composite surface brush fire retardant when the table back plate thickness is 0.3-0.6mm, soak flame treatment when showing back plate thickness for 0.6-1.6mm.The table backboard also can adopt other that sheet material of fire resistance is arranged.
6, the making of flame retardant blockboard paddle:
Paddle can be adopted middle-high density plate or timber rotary cut venner.As adopt the thick fire-retardant middle-high density plate of 1.8-3.0mm, can directly be coated with flame-retarded resin glue and use.As adopting 1.0-1.6mm thick timber rotary cut venner need do flame treatment, treatment step is as follows; Selecting thickness error shears at ± 0.05mm veneer and removes processing and material defective, dry moisture content is below 20%, veneer is put into fire-retardant liquid pool to be soaked, different according to seeds and thickness, the time of soaking is also different, be generally 30-60 minute, after soaking into veneer is taken out, airing is anhydrous to the plate face, again veneer is inserted modification liquid immersion taking-up in 0.5-1 minute and dry,, enter again and be dried to moisture content 8～10% in the drying machine to improve bonding strength and water logging peel strength, after enter fine pruning, piece, be coated with the fire retardant glue operation, be made into fire-retardant paddle.
7, the making of composite inflaming retarding core-board finished product:
On assembly platform case, put an aluminium backing plate, ground floor on the backing plate is put a 0.2-1.6mm rotary-cut or sliced veneer is made backboard, the two-sided fire-retardant middle-high density plate that is coated with flame-retarded resin glue or fire retarding wood rotary cut venner are put the second layer do paddle, pile up a joinery core board for the 3rd layer and do the intermediate layer, put a two-sided fire-retardant middle-high density plate or a fire retarding wood rotary cut venner that is coated with flame-retarded resin glue again for the 4th layer and do paddle, layer 5 is put a 0.2-1.6mm rotary-cut or sliced veneer is done dash board, the blank flat of putting in order is delivered in the preformer precompressed 20-40 minute, deliver in the hot press under conventional temperature and pressure hot pressing 20-40 minute after the typing again, code-disc is deposited nature cooling 24 hours, be cut into specification with edge saw, promptly be processed into the composite inflaming retarding core-board central layer.
Making the composite inflaming retarding core-board central layer by the foregoing invention method and have fire prevention and environmental-protecting performance, also have simultaneously in light weight, insulation, sound insulation, the easy characteristics of processing, is furniture, system door, the desirable applied fireproofing of building decoration industry.
Claims (9)
1. the preparation method of a composite inflaming retarding core-board is characterized in that it may further comprise the steps:
1), make fire-retardant joinery core board bar, utilize low-grade timber or processing limit pin clout, reject material and manufacturing deficiency and be processed into the central layer bar;
2), employing secondary vacuum pumping/pressurization is injected the fire retardant technology, is made the fire retardant aqueous solvent fully immerse central layer bar inside;
3), after fire-retardant joinery core board bar injects fire retardant, inserting concentration is to soak 1-2 minute in the 2 ‰ modification liquid;
4), fire-retardant joinery core board preparation method: smart section of the fire-retardant joinery core board bar that will handle well, concora crush are to length and the width stipulated, be coated with flame-retarded resin glue in length and width, with joiner jigsaw machine the central layer bar is combined into the joinery core board blank, conditional equilibrium in constant temperature, constant humidity after the release was handled 15-30 days, with abrasive finishing machine abrasive finishing on the joinery core board blank of handling well, make fire-retardant joinery core board then;
5), adopt timber rotary-cut or sliced veneer to prepare flame retardant blockboard table backboard, thickness is 0.2-1.6mm, adopts fire retardant treatment process to handle;
6), adopt medium density fibre board (MDF) or timber rotary cut venner and flame-retarded resin glue to prepare paddle;
7), the composite inflaming retarding core-board finished product is made in fire-retardant joinery core board, flame retardant blockboard table backboard, paddle hot pressing.
2. the preparation method of a kind of composite inflaming retarding core-board according to claim 1, the compound method that it is characterized in that described fire retardant aqueous solvent: the ALFR environment friendly flame retardant that fire retardant is selected for use, in 15: 85 ratio fire retardant is joined in the warm water about 50 degree during preparation, fully stir and make fire retardant dissolving becoming clear solution.
3. the preparation method of a kind of composite inflaming retarding core-board according to claim 1, it is characterized in that the making of described fire-retardant joinery core board bar: select low-grade timber undersized log or the processing limit pin clout handled through super-dry for use, reject material and manufacturing deficiency, adopt joiner jigsaw machine to be combined into central layer, be processed into the specification of core bar, pile up in vacuum/pressurized canister, be evacuated to vacuum 60-80KPa in jar, kept 20-30 minute; With concentration ratio is that the fire retardant aqueous solution of 12-15% is injected in the jar, slowly be forced into 1.0-1.2MPa, kept 60-120 minute, unload and be depressed into the retardant solution in the emptying jar behind the normal pressure, secondary vacuum pumping is to vacuum 50-70KPa, kept 20-30 minute, and the fire retardant aqueous solution was injected in the jar again, secondary slowly is forced into 1.2-1.5MPa, kept 60-120 minute, unload and be depressed into the retardant solution in the emptying jar behind the normal pressure, be evacuated to vacuum 50-70KPa, keep going out in 20-30 minute jar for three times; It is to soak in the 2 ‰ modification liquid 1-2 minute that the central layer batten is inserted concentration, improves bonding strength and water logging peel strength, dries a back sign indicating number pallet and advances dry kiln and carry out drying, and kiln discharge when moisture content drops to 7-9% was deposited indoor Balance Treatment more than 72 hours.
4. the preparation method of a kind of composite inflaming retarding core-board according to claim 1, the compound method that it is characterized in that described flame-retarded resin glue: ALFR type fire retardant is added in the urea-formaldehyde resin adhesive of 40-60 degree in 15: 85 ratio, and rapidly agitated liquid evenly till.
5. the preparation method of a kind of composite inflaming retarding core-board according to claim 1, the preparation method that it is characterized in that fire-retardant joinery core board is: with smart section of the central layer bar of handling well, concora crush is to the length and the width of regulation, be coated with flame-retarded resin glue in length and width, with joiner jigsaw machine the central layer bar is combined into the joinery core board blank, after the release at constant temperature, under the condition of constant humidity Balance Treatment 15-30 days, make each piece central layer bar moisture content all be tending towards balanced, abrasive finishing machine abrasive finishing is to specific thickness on the joinery core board blank of handling well, and the joinery core board code-disc that is up to the standards enters next procedure.
6. the preparation method of a kind of composite inflaming retarding core-board according to claim 1 is characterized in that the preparation method of described fire-retardant joinery core board is: adopt the tooth punching of central layer bar, finger Jie mode long, jigsaw to make integrated joinery core board.
7. the preparation method of a kind of composite inflaming retarding core-board according to claim 1, the preparation method that it is characterized in that described flame retardant blockboard table backboard is: the table backboard adopts timber rotary-cut or sliced veneer, thickness is 0.2-1.6mm, not doing fire retardant during less than 0.3mm separately more than or equal to 0.2mm when the table back plate thickness immerses and handles, compound tense plays flame retardant effect by flame-retarded resin glue to the infiltration of table backboard, the table back plate thickness be for 2～4 time can reaching flame retardant effect at composite surface brush fire retardant more than or equal to 0.3mm during less than 0.6mm, and the table back plate thickness is for soaking flame treatment during smaller or equal to 1.6mm more than or equal to 0.6mm.
8. the preparation method of a kind of composite inflaming retarding core-board according to claim 1, the preparation method that it is characterized in that described paddle is: paddle adopts middle-high density plate or timber rotary cut venner, adopts the thick fire-retardant middle-high density plate of 1.8-3.0mm directly to be coated with flame-retarded resin glue and uses; Or adopt 1.0-1.6mm thick timber rotary cut venner to do flame treatment, treatment step is as follows: select thickness error and shear at ± 0.05mm veneer and remove processing and material defective, dry moisture content is below 20%, veneer is put into fire-retardant liquid pool to be soaked, different according to seeds and thickness, the time of soaking is 30-60 minute, after soaking into veneer is taken out, airing is anhydrous to the plate face, veneer being inserted modification liquid immersion taking-up in 0.5-1 minute dries again, enter again and be dried to moisture content 8～10% in the drying machine, after enter fine pruning, piece, be coated with the fire retardant glue operation, be made into fire-retardant paddle.
9. the preparation method of a kind of composite inflaming retarding core-board according to claim 1, the preparation method that it is characterized in that described composite inflaming retarding core-board finished product is: put an aluminium backing plate on assembly platform case, ground floor on the backing plate is put a 0.2-1.6mm rotary-cut or sliced veneer is made backboard, the two-sided fire-retardant middle-high density plate that is coated with flame-retarded resin glue or timber rotary cut venner are put the second layer do paddle, pile up a joinery core board for the 3rd layer and do the intermediate layer, put a two-sided fire-retardant middle-high density plate or a timber rotary cut venner that is coated with flame-retarded resin glue again for the 4th layer and do paddle, layer 5 is put a 0.2-1.6mm rotary-cut or sliced veneer is done dash board, the blank flat of putting in order is delivered in the preformer precompressed 20-40 minute, deliver in the hot press under conventional temperature and pressure hot pressing 20-40 minute after the typing again, code-disc is deposited nature cooling 24 hours, be cut into specification with edge saw, promptly be processed into the composite inflaming retarding core-board central layer.
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| CN2009100717244A CN101513745B (en) | 2009-04-03 | 2009-04-03 | Preparation method for composite inflaming retarding core-board |
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| CN2009100717244A CN101513745B (en) | 2009-04-03 | 2009-04-03 | Preparation method for composite inflaming retarding core-board |
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| CN111571736A (en) * | 2020-06-01 | 2020-08-25 | 怀化市祺鑫木业股份有限公司 | Fireproof flame-retardant environment-friendly core-board with fir core and preparation method thereof |
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2009
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