CN115742471A - Composite board with high fireproof and flame retardant properties and preparation method thereof - Google Patents
Composite board with high fireproof and flame retardant properties and preparation method thereof Download PDFInfo
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- CN115742471A CN115742471A CN202211360964.8A CN202211360964A CN115742471A CN 115742471 A CN115742471 A CN 115742471A CN 202211360964 A CN202211360964 A CN 202211360964A CN 115742471 A CN115742471 A CN 115742471A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires
Abstract
The invention relates to the technical field of production of flame-retardant plywood, and discloses a composite board with high fireproof and flame-retardant properties and a preparation method thereof, wherein the preparation method comprises the following steps of (1) gum dipping: flatly paving a rock wool board on a grid plate base plate, loading the rock wool board into a dipping cage, dipping the dipping cage into a dipping pool, continuously floating the dipping cage up and down, and draining; (2) sizing: extruding redundant diluted adhesive, spraying the adhesive on the rock wool board after the adhesive is extruded, and then placing the rock wool board on a squeezing and adhesive extruding platform again for secondary adhesive extruding; (3) inserting holes: vertically binding a plurality of rows of holes on the rock wool plate after secondary glue squeezing; (4) drying; (5) assembling: after the rock wool plates and the grid disc pad plates obtained in the step (4) are removed, the rock wool plates and the grid disc pad plates are paved with a plurality of wood veneer blanks to form a base material plate; (6) forming: the composite plywood prepared by the method has high flame-retardant and fireproof performance, high physical strength and wider application range.
Description
Technical Field
The invention relates to the technical field of production of flame-retardant plywood, in particular to a composite board with high fireproof and flame-retardant performances and a preparation method thereof.
Background
For a long time, china and abroad are always dedicated to solving the fire prevention problem of wood decoration materials, and are always dedicated to developing fire-proof flame-retardant boards, although the wood can reach certain flame-retardant requirements through modification of adhesives and addition of flame-retardant materials at the present stage, the actual fire-proof problems can not be solved due to the development of the flame-retardant boards and the fire-proof boards.
The rock wool material is widely applied to heat insulation and preservation of buildings, and has the advantages of low density, low strength, low price and convenient manufacture. The artificial inorganic fiber processed by melting the rock wool at high temperature has the characteristics of light weight, small heat conductivity coefficient, heat absorption and non-combustion.
However, since rock wool is low in strength and physical mechanical property, and a conventional adhesive raw glue is difficult to permeate into a rock wool board in a dry rock wool board, so that the use strength of the plywood is reduced, the rock wool can not be adopted to produce the artificial board in the processing process of the artificial board in the conventional method for preparing the flame-retardant plywood at present, and the rock wool plywood is simply applied to the plywood, so that the bonding effect is poor, the product is easy to crack, the strength of the plywood is reduced, the flame-retardant effect is limited, and the use scene of the plywood is influenced.
Disclosure of Invention
Therefore, the composite board with high fireproof and flame retardant properties and the preparation method thereof need to be provided, and the problem that rock wool is applied to the plywood in the prior art and the effect is not ideal is solved.
In order to achieve the aim, the invention provides a preparation method of a composite plate with high fireproof and flame retardant properties, which comprises the following steps:
(1) Gum dipping: flatly paving a rock wool board on a grid tray base plate, then loading the grid tray base plate into a dipping cage, dipping the dipping cage into a dipping pool, continuously floating the dipping cage up and down, then draining, and repeating dipping for N times, wherein N is more than or equal to 1; the dipping tank is internally provided with a diluted adhesive;
(2) Sizing: taking the grid plate mat plate filled with the rock wool plate out of a cage, placing the grid plate mat plate on a squeezing and glue extruding platform, extruding redundant diluted adhesive in the rock wool plate blank, spraying the adhesive containing 10% of thickening agent on the rock wool plate after glue extruding, spraying adhesive on two sides, then placing the rock wool plate on the squeezing and glue extruding platform again, and carrying out secondary glue extruding;
(3) Inserting holes: vertically binding a plurality of rows of holes on the rock wool plate after secondary glue squeezing;
(4) And (3) drying: drying the rock wool board after the jack at the temperature of 40-65 ℃ to control the water content of the rock wool board after gum dipping to be 15-20%;
(5) Assembling: after the rock wool plates and the grid disc pad plates obtained in the step (4) are removed, the rock wool plates and the grid disc pad plates are paved with a plurality of wood veneer blanks to form a base material plate;
(6) Molding: the base material plate is formed into a composite plywood through a hot pressing process.
Further, the bottom surface of the grid plate backing plate is a net frame surface, a plurality of placement layers are arranged on the dipping cage, grid holes are formed in the placement layers, the grid plate backing plate is placed on the placement layers, the total dipping time in the step (1) is 0.5-1 minute, the dipping cage is lifted away from the dipping pool when draining is carried out, the dipping cage is firstly leaned against the inclined plane glue draining table at an angle of 45 degrees to drain glue for 20-30 minutes, then the dipping cage is erected to drain glue for 0-30 minutes, then the dipping cage takes one angle at the bottom as a fulcrum, the glue is conically erected to drain glue, and the glue draining time is 20-30 minutes.
Further, in the step (2), when the rock wool board is sprayed and glued, the glue application amount is 200-250 g/square meter, and the thickening agent is flour. In the step (3), the distance between two adjacent rows of holes is 20-40cm, the distance between the holes in the same row is 10-20cm, and the diameters of the holes are 10-15mm.
Further, in the step (5), the wood veneer is dried, flame-retardant and glued, and then is assembled with the rock wool board, after the wood veneer is dried, the water content of the wood veneer is controlled to be below 6%, and the flame-retardant and gluing treatment method after the wood veneer is dried is one of the following two methods:
(1) Soaking the wood veneer in a container with a flame retardant, an insect repellent and a preservative, carrying out flame retardant treatment, drying by using a dryer, and then coating an adhesive;
(2) Adding fire retardant, insect repellent, preservative and waterproof agent into the adhesive, when the adhesive is phenolic adhesive and the waterproof agent is not added, mixing the adhesive and roll-coating the adhesive on the wood veneer, wherein the glue coating amount is 160-200 g/m 2 。
Further, in the step (5), the wood veneers on the upper and lower surfaces of the base material plate do not need to be subjected to gluing treatment, and the wood grains of the two adjacent wood veneers are arranged in a crossed manner in the overlook projection.
Further, in the step (5), when the rock wool board is assembled, a lacing bar sheet is obliquely inserted on the rock wool board, and the lacing bar sheet is a thin sheet obtained by slitting the dried and flame-retardant wood veneer along the wood grain.
Further, in the step (5), the rock wool boards, the glass magnesium boards and the multiple wood veneer sub-blanks are paved to form base material boards
The composite board with the high fireproof and flame retardant performances, prepared by the preparation method, comprises a plurality of wood veneers and a rock wool board which are stacked, wherein the rock wool board is positioned among the wood veneers, a plurality of rows of holes are formed in the rock wool board, and the wood veneers, the rock wool board and the wood veneers are bonded through an adhesive.
Further, two rows of lacing bars are arranged between two adjacent rows of holes on the rock wool board, the two rows of lacing bars are symmetrically arranged in an opposite inclined manner, and the inclined angle is 60-70 degrees. The lacing bar piece is subjected to flame retardant treatment and is inserted into the rock wool board, so that the physical performance of the rock wool board can be further enhanced.
Furthermore, the wood-plastic composite board also comprises a glass-magnesium board, wherein the glass-magnesium board is positioned between the rock wool board and the wood veneer. The composite glass magnesium board is beneficial to improving the flame retardant effect of the composite board.
The technical scheme has the following beneficial effects:
according to the invention, the surface of the rock wool board is wetted through the gum dipping procedure in the step (1), so that the mixed glue solution of the virgin rubber and the flour auxiliary agent and the like can be conveniently applied to the rock wool board in the subsequent process, the rock wool can be fully bonded with the wood veneer after the short-time gum dipping procedure, and the plywood which is excessive in quality and not easy to crack can be obtained after the subsequent hot-press forming. Meanwhile, the drying time can be shortened, redundant diluted adhesive is contained in the rock wool board after the glue dipping and draining, the squeezing and glue squeezing platform can further squeeze the redundant diluted adhesive in the rock wool board blank, the rock wool board is enabled to have a certain deformation space through the multi-row holes in the rock wool board, the overall physical mechanical property of the rock wool board can be improved to a certain extent, and therefore the prepared plywood can have strong physical strength when having the flame retardant effect of the rock wool.
Drawings
FIG. 1 is a block diagram of a dip cage and a grid tray shim plate according to an embodiment;
FIG. 2 is a block diagram of the interior of the dip cage and the grid tray mat in accordance with an embodiment;
FIG. 3 is a cross-sectional structural view of the composite panel according to examples 2 to 3;
FIG. 4 is a view showing the structure of the rock wool panel according to examples 2 to 3;
FIG. 5 is a cross-sectional structural view of the composite panel according to example 4;
description of reference numerals:
1. a glue dipping cage; 11. placing the layer; 12. mesh holes; 13. an auxiliary wheel; 2. a grid tray backing plate; 3. a safety door;
4. a wood veneer; 5. rock wool boards; 51. a hole; 52. a tendon pulling sheet; 6. a glass magnesium board.
Detailed Description
In order to explain technical contents, structural features, objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in combination with the embodiments.
Example 1
A preparation method of a composite board with high fireproof and flame retardant properties comprises the following steps:
(1) Gum dipping:
(1.1) as shown in the figure 1-2, a rock wool board is flatly paved on a grid plate backing plate 2, then the grid plate backing plate 2 is loaded into a dipping cage 1, the dipping cage 1 is dipped into a dipping tank, the dipping cage 1 continuously floats up and down,
the bottom surface of the grid plate backing plate 2 is a grid frame surface, the impregnation cage 1 is provided with a plurality of placing layers 11, grid holes 12 are arranged on the placing layers 11, the grid plate backing plate 2 is placed on the placing layers 11,
the mesh holes 12 and the meshes on the bottom surface of the mesh plate backing plate 2 are convenient for the gum dipping of the bottom surface of the rock wool plate, and the multilayer placing layer 11 can simultaneously dip a plurality of rock wool plates.
In order to facilitate the matching of the grid plate backing plate 2 and the impregnation cage 1, in this embodiment, two opposite side surfaces of the impregnation cage 1 are respectively provided with an inlet and an outlet, and are provided with a safety door 3, the placing layer 11 is provided with an auxiliary wheel 13, the bottom surface of the grid backing plate is provided with a strip-shaped rolling rail, and the rolling rail is matched with the auxiliary wheel 13. The cooperation of the rolling track and the auxiliary wheel 13 facilitates the grid plate backing plate 2 to enter and slide out of the impregnation cage 1, and meanwhile, the grid plate backing plate 2 can be limited to shake back and forth during impregnation.
In the embodiment, the size of the grid holes is 2.0-5.0cm, the height of each layer is slightly larger than the thickness of the rock wool board (up to 55-60 mm), the length and width of the inner part of the bottom grid frame of each layer is slightly larger than the rock wool board, and is slightly larger than the outer size of the grid disc cushion board.
Taking a finished board with a size of 4 × 8 as an example, the size of the grid tray is about 2470 × 1250mm, and the adhesive for gum dipping: the solid content of the phenolic glue is 21-25%, and the solid content of the modified urea-formaldehyde glue is 23-27%. Because the plate surface is larger and the plate thickness is larger, the glue dipping time is mainly determined by the thickness and the density of the rock wool plate for uniform glue application of the rock wool plate, the total glue dipping time is 0.5-1 minute in the embodiment, the total glue dipping time is short, and after draining, the glue dipping process is repeated for 1 time. The adhesive contains 1.5-3% of mildew preventive. The modified urea-formaldehyde glue also contains 0.5-1% of waterproofing agent (such as one or more of liquid paraffin, paraffin emulsifier, etc.)
(1.2) draining, repeating the gum dipping for N times, wherein N =1; the dipping tank is internally provided with a diluted adhesive;
when draining, the dipping cage is lifted away from the dipping tank, the dipping cage firstly leans against an inclined plane glue draining table at an angle of 45 degrees to drain glue for 20-30 minutes, then the dipping cage stands up to drain glue for 0-30 minutes, then the dipping cage takes one angle at the bottom as a fulcrum, the dipping cage stands up in a conical shape to drain glue, and the glue draining time is 20-30 minutes. The specific time is adjusted according to the rock wool specification.
(2) Sizing: taking the grid plate mat plate filled with the rock wool plate out of a cage, placing the grid plate mat plate on a squeezing and glue extruding platform, extruding redundant diluted adhesive in the rock wool plate blank, spraying the adhesive containing 10% of thickening agent on the rock wool plate after glue extruding, spraying adhesive on two sides, then placing the rock wool plate on the squeezing and glue extruding platform again, and carrying out secondary glue extruding;
the squeezing and glue extruding platform is provided with a working surface with an inclined angle of 5-10 degrees, and the squeezing and glue extruding platform is an inclined plane and is convenient for extruding and collecting diluted glue.
In this embodiment, crowded gluey clamp plate is slowly pushed down, further extrudes the unnecessary diluted gluing agent in the rock wool slab, and does not destroy rock wool slab surface and inside wholeness. Wherein the rock wool fibers at the bottom part are pressed and compressed into the hollow holes of the grid plate mat board. So that the rock wool board after squeezing and glue squeezing is tightly adsorbed on the grid plate backing plate. At this time, the thickness of the rock wool board is compressed from 30-50mm to about 5-10mm (after the rock wool board is lifted on the pressing board, the rock wool board rebounds)
When the rock wool board is sprayed and glued, the glue application amount is 200-250 g/square meter, and the thickening agent is flour.
(3) Inserting holes: vertically binding a plurality of rows of holes on the rock wool plate after the secondary glue squeezing; the distance between two adjacent rows of holes is 20-40cm, the distance between holes in the same row is 10-20cm, and the diameter of each hole is 10-15mm.
(4) And (3) drying: drying the rock wool board after the jack at 40-65 ℃ to control the water content of the rock wool board after gum dipping to be 15-20% for later use;
(5) Assembling: after the rock wool plates and the grid plate backing plates obtained in the step (4) are removed from the plate, the rock wool plates and a plurality of wood veneer sub-blanks are paved to form base material plates;
(5.1) wood veneer preparation: the wood veneer is dried, flame-retardant and glued, and then assembled with the rock wool board, after the wood veneer is dried, the water content is controlled below 6%, and the flame-retardant and glue-spreading treatment method after the wood veneer is dried is one of the following two methods:
(S1) soaking the wood veneer in a container with a flame retardant, an insect-proof agent and a preservative, carrying out flame retardant treatment, drying by using a dryer, and then coating an adhesive;
(S2) adding a flame retardant, an insect-proof agent, a preservative and a waterproof agent into the adhesive, when the adhesive is phenolic glue and the waterproof agent is not added, mixing the phenolic glue and then rolling the mixed glue on the wood veneer, wherein the glue applying amount is 160-200 g/m 2 。
In this example, the coating base is provided with 10% of a thickening agent, such as flour
(5.2) turning over and removing the rock wool layer: . The rock wool plate and the grid plate pad which are secondarily squeezed, dried at low temperature and perforated are turned 180 degrees (manually or mechanically) on a workbench of a blank paving machine (or on the side of a blank layer of a wood veneer), and then rubber hammers or wood hammers are used for continuously beating various positions on the back of the grid plate pad to demould the rock wool plate blank which is glued and dried at low temperature and perforated, so as to be separated from the grid plate pad. The plate turning and plate removing procedures are used when the slab is formed.
The wood veneers positioned on the upper surface and the lower surface of the base material plate do not need to be subjected to gluing treatment, and the wood grains of the two adjacent wood veneers are arranged in a cross way on the overlooking projection
When the rock wool board is assembled, the lacing bars are obliquely inserted into the rock wool board, and the lacing bars are thin slices of the dried and flame-retardant wood veneer subjected to wood grain slitting.
In step (5), the substrate board may include a rock wool board, a glass magnesium board, and a plurality of wood veneers.
(6) Molding: the base material plate is formed into a composite plywood through a hot pressing process.
The molding and hot-pressing process is the same as that of the prior traditional plywood,
(6.1) ageing: and (5) after the slabs are coated with the paste, standing for 20-30 minutes.
(6.2) prepressing: pre-pressing the plate blank in a pre-press for 10-30 minutes under the unit pressure of 1.0-1.2mpa.
(6.3) hot pressing: and (2) conveying the plate blank pre-pressed in the pre-press into a hot press for hot pressing, wherein the hot pressing temperature is 100-150 ℃, the hot pressing pressure is 0.6-1.0mpa, and the hot pressing time is as follows: the hot pressing time of the plywood is 1.0-3.0min/mm.
And (6.4) curing the hot-pressed plate blank for 3-7 days, sanding and standardizing the cured plate blank, and then inspecting quality, packaging and warehousing.
Example 2
As shown in fig. 2 to 3, a composite board with high fire resistance and flame retardant properties prepared by the preparation method according to embodiment 1 includes 4 wood veneers 4 and a rock wool board 5 stacked together, the rock wool board 5 is located in the middle layer, the rock wool board 5 is provided with two rows of holes 51, the distance between the two rows of holes 51 is 40cm, the distance between the same row of holes 51 is 20cm, the diameter of the holes 51 is 15mm, two rows of tie bars 52 are arranged between the two rows of holes 51, the two rows of tie bars 52 are symmetrically arranged in an opposite inclined manner, and the inclined angle is 60 °.
Example 3
As shown in fig. 2 to 3, a composite board with high fire resistance and flame retardant properties prepared by the preparation method according to embodiment 1 includes 4 wood veneers 4 and a rock wool board 5 stacked together, the rock wool board 5 is located in the middle layer, the rock wool board 5 is provided with two rows of holes 51, the distance between the two rows of holes 51 is 20cm, the distance between the same row of holes 51 is 10cm, the diameter of the holes 51 is 10mm, two rows of tie bars 52 are arranged between the two rows of holes 51, the two rows of tie bars 52 are symmetrically arranged in an opposite inclined manner, and the inclined angle is 70 °.
Example 4
The composite board with high fireproof and flame retardant performances prepared according to the preparation method of embodiment 1 comprises 2 wood veneers 4, a rock wool board 5, a glass magnesium board 6 and 2 wood veneers 4 which are sequentially stacked, wherein the rock wool board 5 is provided with two rows of holes 51, the distance between the two rows of holes 51 is 30cm, the distance between the holes 51 in the same row is 15cm, the diameter of each hole 51 is 12.5mm, two rows of lacing bars 52 are arranged between the holes 51 in the two rows, the lacing bars 52 in the two rows are symmetrically arranged in an opposite inclined manner, and the inclined angle is 65 degrees.
Comparative example 1
The utility model provides a high fire prevention fire behaviour composite sheet, includes 2 wood veneers, rock wool board, 2 wood veneers that pile up the setting in proper order, and the rock wool board is not glued the jack step with the wood veneer before matched stack, and the rock wool board is through gluing, dry step back, with wood veneer group, later carries out hot briquetting.
The composite boards of examples 2 to 4 and comparative example 1 were subjected to flame retardancy and physical property tests, and the test results are shown in table 1 below
Table 1 performance testing of composite panels
The gluing strength and the elastic modulus of the composite board in the comparative example 1 are the maximum values which can be achieved by the existing method, and from the table above, it can be seen that the preparation method of the invention enables the composite board to have the flame retardant effect of rock wool, the rock wool board is tightly bonded with the wood veneer, the gluing strength of the rock wool board and the wood veneer can further break through the upper limit of the composite board in the comparative example 1, the value of the elastic modulus of the whole composite board is further broken through, the quality of the composite board is effectively improved, meanwhile, the composite board has higher physical properties, the application range of the composite board is wider, and technicians in the field can also take the values as research directions to research the composite board with higher gluing strength and higher elastic modulus of the rock wool board.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "include", "including" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or terminal device including a series of elements includes not only those elements but also other elements not explicitly listed or inherent to such process, method, article, or terminal device. Without further limitation, an element defined by the phrases "comprising 8230; \8230;" or "comprising 8230; \8230;" does not exclude the presence of additional elements in a process, method, article, or terminal device that comprises the element. Further, in this document, "greater than," "less than," "more than," and the like are understood to not include the present numbers; the terms "above", "below", "within" and the like are to be understood as including the present number.
Although the embodiments have been described, other variations and modifications of the embodiments may occur to those skilled in the art once they learn of the basic inventive concepts, so that the above description is only for the embodiments of the present invention, and is not intended to limit the scope of the invention, which is intended to be covered by the present invention.
Claims (10)
1. The preparation method of the composite board with high fireproof and flame retardant properties is characterized by comprising the following steps:
(1) Gum dipping: flatly paving a rock wool board on a grid tray base plate, then loading the grid tray base plate into a dipping cage, dipping the dipping cage into a dipping pool, continuously floating the dipping cage up and down, then draining, and repeating dipping for N times, wherein N is more than or equal to 1; the dipping pool is internally provided with a diluted adhesive;
(2) Sizing: taking the grid plate mat plate filled with the rock wool plate out of a cage, placing the grid plate mat plate on a squeezing and glue extruding platform, extruding redundant diluted adhesive in the rock wool plate blank, spraying the adhesive containing 10% of thickening agent on the rock wool plate after glue extruding, spraying adhesive on two sides, then placing the rock wool plate on the squeezing and glue extruding platform again, and carrying out secondary glue extruding;
(3) Inserting holes: vertically binding a plurality of rows of holes on the rock wool plate after the secondary glue squeezing;
(4) And (3) drying: drying the rock wool board after the jack at the temperature of 40-65 ℃ to control the water content of the rock wool board after gum dipping to be 15-20%;
(5) Assembling: after the rock wool plates and the grid plate backing plates obtained in the step (4) are removed from the plate, the rock wool plates and a plurality of wood veneer sub-blanks are paved to form base material plates;
(6) Molding: the base material plate is formed into the composite plywood through a hot pressing process.
2. The method according to claim 1, wherein the bottom surface of the mesh tray is a frame surface, the dip cage is provided with a plurality of placement layers, the placement layers are provided with mesh holes, the mesh tray is placed on the placement layers, the total dip time in step (1) is 0.5-1 minute, the dip cage is lifted away from the dip tank during draining, the dip cage leans against the inclined plane dip table at an angle of 45 degrees first, the glue is drained for 20-30 minutes, then the dip cage is erected for draining the glue for 0-30 minutes, the dip cage takes one angle at the bottom as a fulcrum, the taper is erected for draining the glue, and the glue draining time is 20-30 minutes.
3. The method for preparing a composite board with high fire resistance and flame retardant properties according to claim 1, wherein in the step (2), the rock wool board is sprayed and glued with the glue in an amount of 200-250 g/m, the thickening agent is flour, in the step (3), the distance between two adjacent rows of holes is 20-40cm, the distance between the holes in the same row is 10-20cm, and the diameter of the holes is 10-15mm.
4. The method for preparing a composite board with high fireproof and flame retardant properties according to claim 1, wherein in step (5), the wood veneer is dried, flame-retardant and glued, and then is assembled with the rock wool board, after the wood veneer is dried, the water content is controlled to be below 6%, and the flame-retardant and glued treatment method after the wood veneer is dried is one of the following two methods:
(1) Soaking the wood veneer in a container with a flame retardant, an insect repellent and a preservative, carrying out flame retardant treatment, drying by using a dryer, and then coating an adhesive;
(2) Adding fire retardant, insect repellent, preservative and waterproof agent into the adhesive, when the adhesive is phenolic glue and the waterproof agent is not added, mixing the adhesive, rolling the mixed adhesive on the wood veneer, and coating the adhesive with the amount of 160-200 g/m 2 。
5. The method according to claim 4, wherein in step (5), the wood veneers on the upper and lower surfaces of the base material board are not subjected to glue coating treatment, and the wood grains of two adjacent wood veneers are crossed on the overlook projection.
6. The method for preparing a composite board with high fireproof and flame retardant properties according to claim 4, wherein in the step (5), when the rock wool board is assembled, the rock wool board is obliquely inserted with the lacing bars, and the lacing bars are slices of the dried and flame retardant treated wood veneer according to claim 4, which are cut into strips along with wood grains.
7. A method for manufacturing a composite board with high fire resistance and fire retardant properties as claimed in claim 1, wherein in step (5), the rock wool board, the glass magnesium board, and the plurality of wood veneer slabs are paved to form the base board.
8. The composite board with high fireproof and flame retardant performances, which is prepared according to the preparation method of any one of claims 1 to 7, comprises a plurality of wood veneers and a rock wool board which are stacked, wherein the rock wool board is positioned among the wood veneers, a plurality of rows of holes are arranged on the rock wool board, and the wood veneers, the rock wool board and the wood veneers are bonded through an adhesive.
9. The composite board with high fire resistance and flame retardant property according to claim 8, wherein two rows of lacing bars are arranged between two adjacent rows of holes on the rock wool board, the two rows of lacing bars are symmetrically arranged in an opposite inclined way, and the inclined angle is 60-70 degrees.
10. The composite board of claim 8, further comprising a glass magnesium board, wherein the glass magnesium board is located between the rock wool board and the wood veneer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211360964.8A CN115742471A (en) | 2022-11-02 | 2022-11-02 | Composite board with high fireproof and flame retardant properties and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211360964.8A CN115742471A (en) | 2022-11-02 | 2022-11-02 | Composite board with high fireproof and flame retardant properties and preparation method thereof |
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| CN115742471A true CN115742471A (en) | 2023-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211360964.8A Pending CN115742471A (en) | 2022-11-02 | 2022-11-02 | Composite board with high fireproof and flame retardant properties and preparation method thereof |
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| Country | Link |
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| CN (1) | CN115742471A (en) |
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2022
- 2022-11-02 CN CN202211360964.8A patent/CN115742471A/en active Pending
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