CN215921458U - Composite board and furniture - Google Patents
Composite board and furniture Download PDFInfo
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- CN215921458U CN215921458U CN202121866152.1U CN202121866152U CN215921458U CN 215921458 U CN215921458 U CN 215921458U CN 202121866152 U CN202121866152 U CN 202121866152U CN 215921458 U CN215921458 U CN 215921458U
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Abstract
The utility model provides a composite board and furniture. The composite board comprises a straw board and a ceramic substrate. The ceramic rock plate is attached to the first surface of the straw plate. Because the first surface of straw board is attached with ceramic rock plate, the ceramic rock plate can prevent that the composite sheet surface from appearing the mar or breaking phenomenon. Because the inside of composite sheet uses the straw board as the substrate, the straw board can effectively improve the nail-holding power of composite sheet. In addition, because the difference of the mechanical properties of the straw board and the ceramic rock board is small, the phenomenon that the composite board is damaged due to the fact that the straw board and the ceramic rock board are layered in the long-time use process of the composite board can be avoided.
Description
Technical Field
The utility model belongs to the technical field of plates, and particularly relates to a composite plate and furniture.
Background
In the market, customized furniture with various styles and sizes perfectly matched with house types is more and more popular with consumers. The quality of the furniture, namely the quality of the plate, determines the life of the furniture in the customized furniture industry. With the higher living standard of people in modern society, the quality requirements of people on life are improved, and for furniture, the furniture board is required to have higher aesthetic property and better quality. Accordingly, some furniture manufacturing enterprises develop various types of composite boards to meet the needs of customers. One common composite sheet material is: the surface of the wood substrate is covered with a ceramic panel. However, because of the brittle texture of ceramic panels, they are not suitable for machining to cut various types of shapes to suit the needs of the furniture. Meanwhile, due to the difference of the mechanical properties of the wood base plate and the ceramic panel, the manufactured composite board is easy to delaminate from the ceramic panel in the long-time use process, so that the composite board is damaged.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a composite board, which aims to solve the problems that the composite board of the wood base board and the ceramic panel in the prior art is poor in processing performance, and the composite board is damaged due to the fact that the wood base board and the ceramic panel are easy to delaminate.
One embodiment of the present invention provides a composite panel, including:
straw board; and
a ceramic rock plate attached on the first surface of the straw plate.
In one embodiment, the ratio of the water absorption thickness expansion rate of the straw board to the water absorption thickness expansion rate of the ceramic rock board is in the range of 0.05 to 20.
In one embodiment, the water absorption thickness expansion rate of the straw board is less than or equal to 0.6%;
and/or the water absorption thickness expansion rate of the composite board is less than or equal to 0.1%;
and/or the change rate of the water absorption length or the change rate of the water absorption width of the straw board is less than or equal to 0.4 percent.
In one embodiment, the ratio of the water absorption of the straw board to the water absorption of the ceramic rock board is in the range of 0.05 to 20.
In one embodiment, the water absorption of the straw board is less than or equal to 0.5%;
and/or the water absorption of the ceramic rock plate is less than or equal to 0.05%;
and/or the water absorption of the composite board is less than or equal to 0.1%.
In one embodiment, the thickness of the straw board is in the range of 9-40 mm;
and/or the thickness of the ceramic rock plate is in the range of 1-6 mm.
In one embodiment, the composite panel further comprises:
and the fixing plate is attached to a second surface of the straw plate, which is opposite to the first surface.
In one embodiment, the thickness ratio of the ceramic rock plate to the fixed plate is n: 1, wherein the value range of n is within the range of 2-10.
In one embodiment, the composite panel further comprises:
the first glue layer is arranged between the straw board and the ceramic rock board and used for attaching the ceramic rock board to the straw board; and
and the second glue layer is arranged between the straw board and the fixing board and used for attaching the fixing board to the straw board.
In one embodiment, the first adhesive layer and/or the second adhesive layer is made of a reactive polyurethane hot melt adhesive material.
In one embodiment, the nail holding power of the composite board is greater than or equal to 12N/mm2；
And/or the plate edge nail-holding power of the composite plate is more than or equal to 8N/mm2。
In one embodiment, the fire-retardant properties of the composite panel include:
the composite panel has a burn growth rate of 250W/s or less;
and/or the lateral flame spread range of the composite board is less than or equal to the edge of the composite board;
and/or the composite panel has a total heat release less than or equal to 15MJ over the first 600 seconds when exposed to a burner flame.
In one embodiment, the composite board has a formaldehyde emission of less than or equal to 0.06mg/m3。
In one embodiment, the first surface of the straw board is provided with a glue spreading groove, and part of the first glue layer is accommodated in the glue spreading groove.
In one embodiment, the glue spreading groove is of a wavy structure, the wave height of the glue spreading groove is within the range of 0.8-1.2mm, and the wavelength of the glue spreading groove is within the range of 1.2-1.8 mm.
In one embodiment, the glue spreading groove comprises a plurality of linear groove bodies, and the plurality of linear groove bodies are arranged in parallel;
and/or the glue spreading groove comprises a plurality of annular groove bodies, and the size of the plurality of annular groove bodies is gradually increased from inside to outside;
and/or the glue spreading groove comprises a plurality of groove points, and the first glue layer part is accommodated in the groove points.
In one embodiment, the density of the straw board is 0.4-0.8g/cm3Within the range.
In one embodiment, the composite board further comprises an edge strip wrapping the side surfaces of the straw board and the ceramic rock board.
Another embodiment of the utility model also provides furniture comprising a composite panel. The composite board is the composite board according to any one of the above embodiments.
In the composite board and the furniture provided by the above embodiment, the first surface of the straw board is attached with the ceramic rock board. Wherein the ceramic rock plate is mainly used for improvingThe beauty and the resistance strength of the surface of the board are high, so that the surface style of the board is more diversified, the appearance requirements of different people are met, and the luxury and high-grade of furniture are highlighted. Meanwhile, the ceramic rock plate has high hardness and good wear resistance, so that the phenomenon of scratching or cracking on the surface of the plate can be effectively prevented, and the stability of the plate is high. In addition, because the inside of composite sheet adopts the straw board as the substrate, the straw board can effectively improve the nail-holding power of composite sheet. In addition, because the difference of the mechanical properties of the straw board and the ceramic rock board is small, the phenomenon that the composite board is damaged due to the fact that the straw board and the ceramic rock board are layered in the long-time use process of the composite board can be avoided. Specifically, the ratio of the water absorption thickness expansion rates of the straw board and the ceramic rock board is within the range of 0.05 to 20, so that the straw board and the ceramic rock board are not easily delaminated even in a humid environment. In one embodiment, the density of the straw board is set to be 0.4-0.8g/cm3Within the range. Setting the density of the straw board at 0.4-0.8g/cm3Within the range, the composite board can be ensured not to have excessive weight while having high nail-holding power. In addition, in one embodiment, a fixing plate is attached to a second surface of the straw board, which is opposite to the first surface. On the one hand, the fixed plate can effectively protect the straw plate and prevent the straw plate from being corroded. On the other hand, because two surfaces of the straw board are respectively covered by the ceramic rock board and the fixing board, the waterproof performance of the composite board is further improved by the arrangement mode, and the composite board is further prevented from being layered and damaged due to the fact that the ceramic rock board and the straw board are different in water absorption expansion rate in the using process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a composite plate according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a straw board according to another embodiment of the present invention;
FIG. 3 is a schematic top view of the straw panel of FIG. 2;
FIG. 4 is a schematic structural view of the straw board in FIG. 2 after the ceramic rock board and the fixing board are attached;
FIG. 5 is a schematic structural view of a straw board according to another embodiment of the present invention;
FIG. 6 is a schematic structural view of a straw board according to another embodiment of the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a composite board, which includes a straw board 1 and a ceramic rock board 2.
The straw board is an artificial composite board with excellent performance made of agricultural production residues such as wheat straw, corn straw, sorghum stalk, rice straw, cane bagasse and the like. The plate is environment-friendly, waterproof and fireproof, belongs to renewable resources, and accords with national guidelines on sustainable development of the manufacturing industry. Meanwhile, the price of the straw board is relatively low, and the production cost of the composite board can be reduced. In the actual manufacturing process of the straw board, after impurities such as soil and the like are removed from the wheat straw raw material, the finished board is finally obtained through the processes of mechanical crushing, screening, drying, stirring, paving, rolling, edge sawing, inspection and the like. In the embodiment, the straw board 1 is made of a cereal wood biomass material, and is formed by processing approximately 60% of straw raw materials, more than 30% of common salt and mineral oil composition through high-temperature, high-pressure and mechanical extrusion technology.
The ceramic rock plate 2 is attached to the first surface of the straw plate 1. The ceramic rock Slab (Porcelain Slab) is a novel plate-shaped inorganic material which is produced by using clay and other inorganic non-metallic materials as main raw materials through manufacturing technologies such as molding, drying, high-temperature sintering and the like, wherein a green body produced is consistent with the surface color, and can be processed in modes such as cutting, drilling, polishing and the like according to design requirements. The common ceramic plate or ceramic plate is difficult to perform mechanical processing techniques such as cutting, drilling and the like due to the brittle texture and low strength so as to adapt to the requirements of various types of furniture. The ceramic rock plate has high hardness, good impact resistance and good wear resistance, and can be subjected to cutting, drilling and other processes according to design requirements. Therefore, the composite board made of the straw board 1 and the ceramic rock board 2 can be cut, drilled, polished and the like according to requirements, so that the requirements of different types of furniture are met.
Wherein the ratio of the water absorption thickness expansion rate of the straw board 1 to the water absorption thickness expansion rate of the ceramic rock board 2 is within the range of 0.05 to 20.
In the composite board provided by the embodiment, the ceramic rock plate 2 is attached to the first surface of the straw board 1, on one hand, the ceramic rock plate 2 can improve the aesthetic property and the resistance strength of the surface of the board, so that the surface style of the board is more diversified, the appearance requirements of different people are met, and the luxury and high-grade of furniture are highlighted; on the other hand, because the hardness of ceramic rock plate 2 itself is higher, and wear-resisting type is better, at the attached ceramic rock plate 2 of straw board 1 surface, can effectively prevent that the mar from appearing or the phenomenon of breaking in the panel surface to make the stability of composite sheet higher.
In addition, because straw board 1 is adopted as the substrate in the inside of composite sheet, straw board 1 can effectively improve the nail-holding power of composite sheet to make the composite sheet of preparing easily splice and use the screw to assemble etc..
The water absorption thickness expansion rate is the ratio of the thickness difference of a sample before and after water absorption to the thickness before water absorption measured by immersing a certain amount of the sample in water according to a specified method. Because the humidity in the air is changed frequently and the furniture board is likely to be contacted with water frequently, the water absorption thickness expansion rate is an important assessment factor of the furniture board. In general, the ceramic material has stable mechanical properties and small water absorption thickness expansion rate. However, the conventional wood board is easy to expand in size after absorbing water, so that the water absorption thickness expansion rate is high. The water absorption thickness expansion rate of a common wood board may exceed more than 10%, and the water absorption thickness expansion rate of a ceramic material is generally less than 0.1%. The ratio of the water absorption thickness expansion rate of the two is large. Therefore, in the case of a composite board made of a conventional wood base board and a ceramic material, since the ratio of the water absorption thickness expansion rates of the wood base board and the ceramic material is large, the wood base board and the ceramic material are easily delaminated after a long period of use, resulting in damage to the composite board. In the embodiment, the ratio of the water absorption thickness expansion rates of the straw board 1 and the ceramic rock board 2 is within the range of 0.05-20, so that the phenomenon that the composite board is damaged due to layering of the straw board 1 and the ceramic rock board 2 in the long-time use process of the composite board can be avoided.
In one embodiment, the density of the straw board is set to be 0.4-0.8g/cm3Within the range. Setting the density of the straw board at 0.4-0.8g/cm3Within the range, the composite board can be ensured not to have overlarge whole weight while having higher nail-holding power. For example, when the density of the straw board 1 is set to 0.4g/cm3And the composite board is light in overall weight and is suitable for side panels and door panels of furniture. At the same time, the nail-holding force is ensured, and the use process of the composite board is lighter. When the density of the straw board 1 is 0.8g/cm3And the overall quality of the composite board is improved, and the composite board is suitable for the table top board of furniture. At the moment, the whole composite board is thick and safe, and the bearing capacity is also improved.
In one of the embodiments, the composite plate further comprises a fixing plate 3. The fixing plate 3 is attached to a second surface of the straw plate 1 opposite to the first surface. Specifically, the thickness ratio of the ceramic rock plate to the fixed plate is n: 1, wherein the value range of n is within the range of 2-10. By attaching the fixing plate 3 to the second surface of the straw board 1 opposite to the first surface, on one hand, the fixing plate 3 can effectively protect the straw board 1 and prevent the straw board 1 from being corroded; on the other hand, because two surfaces of the straw board 1 are respectively covered by the ceramic rock boards 2 and the fixing boards 3, the waterproof performance of the composite board can be further improved. At the moment, the composite board is not easy to be layered and damaged due to the difference of the water absorption expansion rates of the ceramic rock board and the straw board in the use process.
In the embodiment, the water absorption thickness expansion rate of the straw board 1 is less than or equal to 0.6%. Since the water absorption thickness expansion rate of the straw board is less than or equal to 0.6%, the straw board can be fully matched with the water absorption thickness expansion rate of the ceramic rock board 2. According to the requirement, the water absorption thickness expansion rate of the composite plate is less than or equal to 0.1%. In one specific embodiment, the composite panel has a water absorption thickness swell ratio of 0.07%. In addition to the consideration of the water absorption thickness expansion rate, the rate of change of the water absorption dimension in the longitudinal direction or the width direction is also an important consideration of the furniture board. According to the requirement, the water absorption length change rate or the water absorption width change rate of the straw board 1 is less than or equal to 0.4 percent, so that the straw board is matched with the ceramic rock board 2. In the embodiment, the water absorption width change rate of the straw board 1 in the transverse direction is 0.37%; the change rate of the water absorption length of the straw board 1 in the longitudinal direction is 0.33%.
It can be understood that the water absorption of the straw board 1 and the ceramic rock board 2 also affects the waterproof performance of the manufactured composite board. In one embodiment, the ratio of the water absorption of the straw board 1 to the water absorption of the ceramic rock board 2 is in the range of 0.05 to 20. Setting the ratio of the water absorption rates of the straw board 1 and the ceramic rock board 2 to be within the range of 0.05 to 20, and also avoiding the delamination phenomenon caused by the difference of the dimensional changes of the straw board 1 and the ceramic rock board 2 after absorbing water. In the embodiment, the water absorption rate of the straw board 1 is less than or equal to 0.5%; the water absorption of the ceramic rock plate 2 is less than or equal to 0.05%. The water absorption of the manufactured composite board is less than or equal to 0.1%.
In one embodiment, the thickness of the straw board 1 is in the range of 9-40 mm. The thickness of the ceramic rock plate 2 is in the range of 1-6 mm. The purpose of setting the thickness of the straw board 1 in the range of 9-40mm is as follows: because the density of the straw board 1 is obviously less than that of the ceramic rock board 2, the straw board 1 with the thickness of about 9-40mm can obviously reduce the overall weight of the composite board; meanwhile, the thickness of the straw board 1 is set to be 9-40mm, so that the manufactured composite board can have high nail-holding power. That is, when the thickness of the straw board 1 is within the range of 9-40mm, the composite board has high nail-holding power and simultaneously has boardThe weight of the material is not too large, the installation and the transportation are convenient, and the use is more comfortable. In general, the nail-gripping force refers to: the performance of a wood-to-metal joint (round nail, wood screw, etc.) is calculated from the force required to pull out a screw of a certain size. According to the requirement, the nail holding power of the plate surface of the composite plate is more than or equal to 12N/mm2. The nail holding force of the plate edge of the composite plate is more than or equal to 8N/mm2. In one embodiment, the composite board has a nail holding power of 12.7N/mm2. The plate edge nail-holding power of the composite plate is more than or equal to 8.9N/mm2. The test method is formulated according to EN 13446-:
screw size: ST 4.2X 38;
nail pulling speed: 5 mm/min;
sample size: 50mm is multiplied by 50 mm;
and (3) testing environment: 21.6 ℃ and 64% RH.
Therefore, the composite board provided by the embodiment of the utility model has a high numerical value of the nail-holding power, and meets the requirements of the furniture industry.
The purpose of setting the thickness of the ceramic rock plate 2 within the range of 1-6mm is to enable the ceramic rock plate 2 to be adaptable to the requirements of different use scenarios. When the composite board is used on side boards of furniture or door boards and other boards with non-high bearing force, the ceramic rock boards 2 with thinner thickness are selected. And when the composite board is used for high-bearing-force board surfaces such as table boards, cabinet panels and the like of furniture, the thicker ceramic rock boards 2 are selected. In the present embodiment, the thickness of the ceramic rock plate 2 is preferably 3 mm. At the moment, the ceramic rock plate 2 has moderate weight, wear resistance, bearing capacity and other performances, and meets the requirements of most users. And the corresponding ceramic rock plate 2 has relatively low production cost and strong comprehensiveness.
In addition, the applicant also carried out tests on the fire resistance of the composite panels produced. In one embodiment, the fire-retardant properties of the composite panel include:
the composite panel has a burn growth rate of 250W/s or less;
and/or the lateral flame spread range of the composite board is less than or equal to the edge of the composite board;
and/or the composite panel has a total heat release less than or equal to 15MJ over the first 600 seconds when exposed to a burner flame.
Specifically, in the process of testing the fireproof performance, the standard documents are as follows: EN 13501-1:2018 for grading the combustion performance of building materials and products. The specific test method is as follows:
EN 13823:2020 building products burn test-monomer burn test of building materials (except floor materials);
EN ISO11925-2:2020 flame test-lighting the building product with a specified flame.
In the testing process of the composite board, the mounting and fixing modes of the composite board are as follows according to standard documents: EN 13823: 2020. The sample of the composite board to be tested has no ventilation gap, the sample of the composite board is free and upright, and the upper end and the lower end of the composite board are fixed.
The test results obtained are shown in the following table:
wherein:
FIGRA- -Combustion growth Rate index for staging [ W/s ];
for class A2 and class B, FIGRA ═ FIGRA0.2MJ；
For class C and class D, FIGRA ═ FIGRA0.4MJ；
LFS- -flame transverse propagation length [ m ];
THR600stotal heat release [ MJ ] at 600 seconds]；
SMOGRA- -Smoke Generation Rate [ m2/s2]；
TSP600s-total smoke production at 600 seconds [ m [ ]2]。
The applicant also performed RoHS directive project tests on the composite panels produced, as required. In the course of the RoHS directive project test, Pb/Cd/Hg/Cr6+/PBBs/PBDEs test and Phthalates test were carried out, respectively. The test method refers to IEC62321-4:2013+ A1:2017, IEC62321-5:2013, IEC62321-7-2:2017, IEC62321-6:2015 and IEC62321-8:2017, and ICP-OES, UV-Vis and GC-MS are adopted for analysis.
The results of the tests obtained are shown in the following table:
wherein:
(1)1mg/kg＝0.0001％；
(2) MDL is the method detection limit;
(3) ND ═ undetected (< MDL);
(4) "-" is not specified.
Therefore, the manufactured composite board can obviously meet the requirements of the RoHS instruction project test.
In one embodiment, in order to meet the environmental requirements of the composite board, the formaldehyde emission of the composite board is less than or equal to 0.06mg/m3So as to avoid damage to the health of people. The applicant has accordingly tested the formaldehyde emission of the composite panels produced, according to the test method described in EN717-1:2004, using UV-Vis analysis. Test results show that the formaldehyde emission of the composite board provided by the embodiment of the utility model is 0.050mg/m3. In the BS EN 13986:2004+ A1:2015 standard, when the formaldehyde emission is less than or equal to 0.124mg/m3The sample reached a grade of E1. Therefore, the formaldehyde emission of the composite board provided by the embodiment of the utility model is 0.050mg/m3It is significantly less than 0.124mg/m3. The composite panels thus produced achieved the E1 rating of the BS EN 13986:2004+ A1:2015 standard.
In one of the embodiments, the composite panel further comprises a first glue layer 4 and a second glue layer 5.
The first glue film 4 is arranged between the straw board 1 and the ceramic rock boards 2 and used for attaching the ceramic rock boards 2 to the straw board 1. The second glue layer 5 is arranged between the straw board 1 and the fixing board 3 and used for attaching the fixing board 3 to the straw board 1. In particular, the fixing plate 3 may be made of a metal plate or a ceramic rock plate. When the fixing plate 3 is made of a ceramic rock plate, the manufacturing material of the fixing plate 3 may be the same as that of the ceramic rock plate 2, or may be different from that of the ceramic rock plate 2. In addition, when the fixing plate 3 is made of a ceramic rock plate, the thickness of the fixing plate 3 is smaller than that of the ceramic rock plate 2. In the present embodiment, the fixing plate 3 is made of a metal plate. The straw board 1 is of a solid structure. The ceramic rock plate 2 is attached to the first surface of the straw plate 1 through a first glue layer 4; the fixing plate 3 is attached to the second surface of the straw plate 1 through a second glue layer 5. The first adhesive layer 4 and the second adhesive layer 5 are both reaction type hot melt adhesive materials. It will be appreciated that one of the first glue layer 4 and the second glue layer 5 may also be provided as a reactive hot melt glue material. In one embodiment, the Reactive hot melt adhesive material is a Reactive Polyurethane (PUR) hot melt adhesive material. Because the PUR hot melt adhesive material does not contain an organic solvent, the coating of the colloid can be carried out at a lower temperature. After the colloid is coated, the preliminary bonding can be finished by cooling and solidifying. In the subsequent process, the PUR hot melt adhesive material is cured by moisture in the air, and has excellent bonding strength and impact resistance after being completely cured. Therefore, the straw board 1, the ceramic rock board 2 and the fixing board 3 are bonded together through the reactive hot melt adhesive material, and the formed composite board has high bonding strength.
In the specific bonding process, the curing process of the PUR hot melt adhesive is divided into two stages, namely cooling condensation and moisture curing:
in the cooling and condensing stage, heating the PUR hot melt adhesive and coating the PUR hot melt adhesive on a straw board, wherein the PUR hot melt adhesive generates initial bonding strength after being cooled and condensed;
in the moisture curing stage, the PUR hot melt adhesive and moisture in the air undergo a chain extension reaction to form a polyurethane molecular chain rigid structure, so that the PUR hot melt adhesive has high bonding strength and good chemical resistance, heat resistance and hydrolysis resistance.
Therefore, in this embodiment, the ceramic rock plate 2 and the fixing plate 3 are both attached to the first surface and the second surface of the straw plate 1 through reactive hot melt adhesives. The straw board 1 the ceramic rock plate 2 the fixed plate 3 the first glue film 4 and the second glue film 5 are integrated into a composite board structure formed after being cured by heating and pressurizing.
In the present embodiment, the fixing plate 3 is made of an aluminum alloy plate. At this time, the thickness of the fixing plate 3 is in the range of 0.2-0.8 mm. When the composite board is installed, the size is large, and large installation bearing capacity is needed, the thickness of the fixing plate 3 is selected to be 0.8mm, so that large installation bearing capacity can be provided for the board, and the board is installed more stably. Correspondingly, when the volume of the composite board during installation is small, the thickness of the fixing plate 3 is selected to be 0.2 mm.
In one embodiment, the reactive hot melt adhesive is a PUR reactive hot melt adhesive. When the ceramic rock plate 2 and the fixing plate 3 are attached to the straw plate 1, the PUR reactive hot melt adhesive is firstly put into a hot melting machine, and after preheating, heating and dispensing are completed, the PUR reactive hot melt adhesive is coated on the surface of the fixing plate 3 to form a second adhesive layer 5 with the thickness of 0.1-0.2 mm. Then, the straw board 1 is oppositely covered on the second glue layer 5, and a first glue layer 4 with the thickness of 0.1-0.2mm is coated on the upper surface (first surface) of the straw board 1. And then the ceramic rock plate 2 is covered on the second adhesive layer 5 to form a composite plate preform, and then the composite plate preform is placed into hot-pressing equipment to be heated, pressurized and cured to form a composite plate finished product. In the manufacturing process, the temperature of the PUR reactive hot melt adhesive is kept within the range of 80-110 ℃ when the PUR reactive hot melt adhesive is preheated; when the PUR reaction type hot melt adhesive is heated, the temperature is kept within the range of 120-130 ℃. If the heating temperature is too high, the PUR reactive hot melt adhesive is liable to be cracked or carbonized, thereby affecting the adhesive properties thereof. In the application process of the manufactured composite board, the board is cut according to the size of the board required in the furniture processing, then the edge sealing treatment is carried out on the periphery of the furniture board, and the furniture board is comprehensively protected. Therefore, the composite board provided by the embodiment of the utility model has the characteristics of fire resistance, water resistance, moth prevention and the like. In addition, in order to improve the adhesion between the straw board 1 and the ceramic rock board 2, a wavy glue spreading groove can be formed in the first surface of the straw board 1. Meanwhile, in order to save the consumption of the PUR reaction type hot melt adhesive, the wave height of the adhesive paving groove is controlled within the range of 0.8-1.2mm, and the wavelength is controlled within the range of 1.2-1.8 mm. The glue spreading groove is integrally formed with the straw board 1 when the straw board 1 is manufactured and formed. When the PUR reaction type hot melt adhesive is paved on the straw board 1 with the structure, the part of the PUR reaction type hot melt adhesive is sunk into the adhesive paving groove, and the fusion property of the PUR reaction type hot melt adhesive is better, so that the straw board 1 and the ceramic rock board 2 are more firmly adhered. In addition, the wave height and the wavelength of the glue spreading groove are strictly controlled, so that the waste of the PUR reactive hot melt adhesive can be effectively avoided, and the production cost of the composite board provided by the embodiment of the utility model is controlled. Meanwhile, the composite board disclosed by the utility model is free from formaldehyde detection through formaldehyde content detection, and belongs to a zero-formaldehyde environment-friendly board product.
In fact, in the process of preparing the composite board, the applicant tried to make a composite board by combining wood board, PVC (Polyvinyl chloride) board, bamboo charcoal fiber board, aluminum honeycomb board, etc. with ceramic rock board, and the combination properties thereof were not satisfactory.
For the composite board made of the wood board and the ceramic rock board, on one hand, the difference of the water absorption expansion coefficients of the wood board and the ceramic rock board is large, and the wood board and the ceramic rock board are easy to be layered after being used for a long time to cause the damage of the composite board; on the other hand, the fire-retardant property of the wood board is also poor.
For the composite board made of the PVC plate and the ceramic rock plate, similarly, since the difference of the water absorption expansion coefficient between the PVC plate and the ceramic rock plate is large, the PVC plate and the ceramic rock plate are easily delaminated after a long time use, which causes damage to the composite board. In addition, the PVC plate may have chemical reaction inside under sunlight, thereby deteriorating the performance of the material.
Similarly, for the composite board made of the bamboo charcoal fiber board and the ceramic rock board, because the difference of the water absorption expansion coefficients of the bamboo charcoal fiber board and the ceramic rock board is large, the bamboo charcoal fiber board and the ceramic rock board are easy to be layered after being used for a long time, and the composite board is damaged. On the other hand, the fire-proof performance of bamboo charcoal fiber board is also not good. And the bamboo charcoal fiber board contains lead element, which is easy to damage the health of people.
For the composite board made of the honeycomb aluminum plate and the ceramic rock plate, on one hand, the nail holding force of the honeycomb aluminum plate is small, and when the screws are arranged on the composite board made of the honeycomb aluminum plate and the ceramic rock plate, the screws easily fall off from the composite board. In addition, the manufacturing process of the honeycomb aluminum plate is complex, and the overall cost is high.
Therefore, the composite board made of the straw board and the ceramic rock board has better overall mechanical property, waterproof property, fireproof property and environmental protection property than the composite board made of the wood board, the PVC board, the bamboo charcoal fiber board or the honeycomb aluminum board and the ceramic rock board.
Referring to fig. 2 and 3, in one embodiment, the glue spreading groove includes a plurality of linear groove bodies 11. The plurality of linear grooves 11 are arranged in parallel. In the process of attaching the ceramic rock plate 2 to the straw plate 1, the linear grooves 11 can reduce the relative displacement between the ceramic rock plate 2 and the straw plate 1. According to the needs, the surface of the ceramic rock plate 2, which is attached to the straw plate 1, can also be provided with linear raised lines 21 corresponding to the linear groove bodies 11 of the straw plate 1. In the attaching process, the linear raised lines 21 of the ceramic rock plates 2 can be correspondingly accommodated in the linear grooves 11 of the straw plates 1, so that the relative displacement between the ceramic rock plates 2 and the straw plates 1 in the attaching process is further reduced. At this time, the composite panel is manufactured as shown in fig. 4.
Referring to fig. 5, in one embodiment, the glue spreading groove includes a plurality of annular groove bodies 12. The size of the plurality of annular grooves 12 is gradually increased from inside to outside. Likewise, the glue spreading groove is provided to comprise a plurality of annular groove bodies 12 in order to reduce the relative displacement of the ceramic rock plate 2 relative to the straw board 1 in all directions during the fitting process. According to the needs, the surface of the ceramic rock plate 2, which is attached to the straw plate 1, can also be provided with annular convex strips corresponding to the annular groove body 12 of the straw plate 1. In the attaching process, the annular convex strips of the ceramic rock plates 2 can be correspondingly accommodated in the annular groove bodies 12 of the straw plates 1, so that the relative displacement between the ceramic rock plates 2 and the straw plates 1 in the attaching process is further reduced.
Referring to fig. 6, in one embodiment, the glue spreading groove comprises a plurality of groove points 13 disposed on the first surface of the straw board 1. The reactive hot melt adhesive is partially trapped in the plurality of slot sites 13. Likewise, the glue spreading groove is arranged to comprise a plurality of groove points 13 in order to reduce the relative displacement of the ceramic rock plate 2 in all directions relative to the straw board 1 during the fitting process. According to the requirement, the surface of the ceramic rock plate 2, which is attached to the straw plate 1, can also be provided with salient points corresponding to the groove points 13 of the straw plate 1. In the attaching process, the salient points of the ceramic rock plate 2 can be correspondingly accommodated in the groove points 13 of the straw plate 1, so that the relative displacement between the ceramic rock plate 2 and the straw plate 1 in the attaching process is further reduced.
It is understood that the sides of the straw board 1 and the ceramic rock board 2 are also provided with edge banding strips (not shown). The banding cladding is in the straw board 1 with the side of ceramic rock plate 2 to prevent steam or other pollutant entering composite sheet's inside.
Another embodiment of the utility model also provides furniture comprising a composite panel. The composite board is the composite board according to any one of the above embodiments. The composite board comprises a straw board 1 and a ceramic rock board 2 attached to the surface of the straw board 1. The ceramic rock plate 2 can improve the aesthetic property and the resistance strength of the surface of the plate, so that the surface style of the plate is more diversified, the appearance requirements of different people are met, and the luxury and the high-grade of furniture are highlighted. Meanwhile, the ceramic rock plate 2 has high hardness and good wear resistance, so that the phenomenon of scratching or cracking on the surface of the plate can be effectively prevented, and the stability of the plate is high. In addition, because straw board 1 is adopted as the substrate in the inside of composite sheet, straw board 1 can effectively improve the nail-holding power of composite sheet. In addition, the ratio of the water absorption thickness expansion rate of the straw board 1 to the ceramic rock board 2 is within the range of 0.05 to 20, so that the phenomenon that the composite board is damaged due to layering of the straw board 1 and the ceramic rock board 2 in the long-time use process of the composite board can be avoided.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (19)
1. A composite panel, comprising:
straw board; and
a ceramic rock plate attached on the first surface of the straw plate.
2. The composite panel of claim 1,
the ratio of the water absorption thickness expansion rate of the straw board to the water absorption thickness expansion rate of the ceramic rock board is within the range of 0.05-20.
3. The composite panel of claim 2,
the water absorption thickness expansion rate of the straw board is less than or equal to 0.6 percent;
and/or the water absorption thickness expansion rate of the composite board is less than or equal to 0.1%;
and/or the change rate of the water absorption length or the change rate of the water absorption width of the straw board is less than or equal to 0.4 percent.
4. The composite panel according to claim 2, wherein a ratio of water absorption of the straw panel to water absorption of the ceramic rock panel is in a range of 0.05 to 20.
5. The composite panel of claim 4,
the water absorption of the straw board is less than or equal to 0.5%;
and/or the water absorption of the ceramic rock plate is less than or equal to 0.05%;
and/or the water absorption of the composite board is less than or equal to 0.1%.
6. The composite panel according to any one of claims 1 to 5,
the thickness of the straw board is within the range of 9-40 mm;
and/or the thickness of the ceramic rock plate is in the range of 1-6 mm.
7. The composite panel of claim 6, further comprising:
and the fixing plate is attached to a second surface of the straw plate, which is opposite to the first surface.
8. The composite panel according to claim 7, wherein a thickness ratio of the ceramic rock panel to the fixing panel is n: 1, wherein the value range of n is within the range of 2-10.
9. The composite panel according to claim 7, further comprising:
the first glue layer is arranged between the straw board and the ceramic rock board and used for attaching the ceramic rock board to the straw board; and
and the second glue layer is arranged between the straw board and the fixing board and used for attaching the fixing board to the straw board.
10. The composite panel according to claim 9, wherein the first adhesive layer and/or the second adhesive layer is made of a reactive polyurethane hot melt adhesive material.
11. The composite panel according to any one of claims 1 to 5, 7 to 10,
the nail-holding power of the board surface of the composite board is more than or equal to 12N/mm2；
And/or the plate edge nail-holding power of the composite plate is more than or equal to 8N/mm2。
12. The composite panel according to any one of claims 1 to 5 or 7 to 10, wherein the fire-retardant property of the composite panel comprises:
the composite panel has a burn growth rate of 250W/s or less;
and/or the lateral flame spread range of the composite board is less than or equal to the edge of the composite board;
and/or the composite panel has a total heat release less than or equal to 15MJ over the first 600 seconds when exposed to a burner flame.
13. The composite panel according to any one of claims 1 to 5 and 7 to 10, wherein the composite panel has a formaldehyde emission of 0.06mg/m or less3。
14. The composite board according to any one of claims 9 to 10, wherein the first surface of the straw board is provided with a glue spreading groove, and a part of the first glue layer is accommodated in the glue spreading groove.
15. The composite panel according to claim 14, wherein the glue spreading grooves have a wave-shaped structure, the wave height of the glue spreading grooves is in a range of 0.8-1.2mm, and the wavelength of the glue spreading grooves is in a range of 1.2-1.8 mm.
16. The composite panel of claim 14,
the glue spreading groove comprises a plurality of linear groove bodies, and the linear groove bodies are arranged in parallel;
and/or the glue spreading groove comprises a plurality of annular groove bodies, and the size of the plurality of annular groove bodies is gradually increased from inside to outside;
and/or the glue spreading groove comprises a plurality of groove points, and the first glue layer part is accommodated in the groove points.
17. The composite board of claim 2, wherein the straw board has a density of 0.4-0.8g/cm3Within the range.
18. The composite panel of claim 1, further comprising an edge strip wrapping around the sides of the straw panel and the ceramic rock panel.
19. A piece of furniture comprising a composite board, characterized in that the composite board is a composite board according to any one of claims 1-18.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121866152.1U CN215921458U (en) | 2021-08-11 | 2021-08-11 | Composite board and furniture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121866152.1U CN215921458U (en) | 2021-08-11 | 2021-08-11 | Composite board and furniture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215921458U true CN215921458U (en) | 2022-03-01 |
Family
ID=80422322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121866152.1U Active CN215921458U (en) | 2021-08-11 | 2021-08-11 | Composite board and furniture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215921458U (en) |
-
2021
- 2021-08-11 CN CN202121866152.1U patent/CN215921458U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Tongjiu Technology Co.,Ltd. Assignor: Dong Danpeng Contract record no.: X2023980041820 Denomination of utility model: A composite board and furniture Granted publication date: 20220301 License type: Common License Record date: 20230914 |