WO2019196123A1

WO2019196123A1 - Composite sheet material and manufacturing method therefor

Info

Publication number: WO2019196123A1
Application number: PCT/CN2018/083120
Authority: WO
Inventors: 王彪; 胡文跃; 派恩·杰森; 杭承
Original assignee: 王彪
Priority date: 2018-04-13
Filing date: 2018-04-13
Publication date: 2019-10-17
Also published as: US20190330860A1

Abstract

A composite sheet material (100) and a manufacturing method therefor. The composite sheet material comprises: a base material layer (110), forming a sheet material core of the composite sheet material; an abrasion resistance layer (120), covering the base material layer and being fixed with respect to the base material layer; a substrate layer (130), arranged on the other side of the base material layer with respect to the abrasion resistance layer and being fixed with respect to the base material layer; a first bonding layer (140), adhered between the base material layer and the abrasion resistance layer. The base material layer also comprises fixing elements (111), the fixing elements being arranged on two sides of the base material layer. When at least two composite sheet material pieces are connected, the fixing elements combine with one another, so as to fix the composite sheet material pieces with respect to one another. The composite sheet material has the hardness and abrasion resistance of, for example, a ceramic tile, and the base material layer may be used for installing the composite sheet material, thereby increasing ceramic tile installation efficiency, and reducing labour costs during installation.

Description

Composite board and manufacturing method thereof

Technical field

The invention relates to the field of building consumables, in particular to a composite board and a manufacturing method thereof.

Background technique

In the field of building consumables, boards laid on the floor or wall are usually waterproof, moisture-proof, low-cost, and not easily deformed. In this regard, the market uses fiberboard or particle board laminate flooring, or tile, stone and other hard materials, according to different needs of users, choose wood board, plastic sheet, hard board, etc. laid on the floor or wall .

When the user uses hard materials such as ceramic tiles and stone materials, although the material itself has the characteristics of beautifying utensils, easy to be washed, and not eroded by dust, but the hardness is higher, the toughness is poor, and the external deformation variables can be withstood. less. If the tile or stone receives external stress, it will crack or break. Therefore, when installing tiles, stone on the wall or on the ground, it is usually laid by hand and bonded by adhesive, cement, etc. On the body of ceramic tiles and stone, there is no additional structure for fixing to each other after cutting or cutting.

However, if a common substrate is used instead of a tile, a stone or the like, although the substrate has higher toughness, correspondingly, the hardness is poor, and the surface is scratched and slipped, which affects the appearance.

Therefore, there is a need for a novel composite sheet which has both hardness and wear resistance such as ceramic tile, and also has a core layer of the sheet material, which can be used as a composite sheet to improve the installation efficiency of the tile and reduce labor costs. In addition, the original waterproofness and heat resistance of the tiles and substrates are also maintained.

Summary of the invention

In order to overcome the above technical deficiencies, the object of the present invention is to provide a composite board and a manufacturing method thereof, which can reduce the amount of binder used and harmful substances in the process of paving tiles and the like, and can be installed in green. Effect. At the same time, each part is used for its own, bringing a new impact on the product line for the home improvement industry.

The invention discloses a composite board comprising:

a substrate layer forming a core of the composite sheet;

a wear layer covering the substrate layer and relatively fixed to the substrate layer;

a substrate layer disposed on the other side of the substrate layer relative to the wear layer and relatively fixed to the substrate layer;

a first bonding layer bonded between the substrate layer and the wear layer, wherein

The substrate layer further includes a fixing member disposed on both sides of the substrate layer, and when at least two composite sheets are joined, the fixing members are coupled to each other to relatively fix the composite sheet.

Preferably, the substrate layer comprises a composite of stone powder and plastic;

The wear layer comprises a hard material.

Preferably, the composite is a WPC wood plastic floor or a SPC stone plastic floor;

The hard material is a tile or stone.

Preferably, the substrate layer is bonded to the wear layer and then formed at a high temperature or a cold press.

Preferably, the composite sheet further comprises:

The second bonding layer is bonded between the substrate layer and the substrate layer.

Preferably, the fixing element is a locking element;

The locking component includes a mounting groove and a mounting rib disposed on two sides of the base material layer, and the mounting rib is matched with the mounting groove to fix a plurality of the base material layers.

Preferably, the mounting rib further includes a limiting groove, and a surface of the mounting groove protrudes to form a finite rib;

The limiting ribs are mated with the limiting slots to limit axial and radial displacement between the plurality of substrate layers.

Preferably, the substrate layer comprises a mounting surface facing the wear layer;

A pair of opposite edges of the wear layer are attached to opposite edges of the mounting surface, and another pair of opposite edges are disposed within a projecting range of the mounting surface.

Preferably, the surface of the wear layer is pre-opened with a decorative seam;

The decorative slit is parallel to the width direction of the wear layer.

The invention also discloses a method for manufacturing a composite board, comprising the following steps:

Step S100: taking a substrate layer as a core of the composite sheet;

Step S200: opening fixing elements on both sides of the substrate layer for relatively fixing the composite plate;

Step S300: laying a wear layer on the substrate layer and fixing on the substrate layer.

After adopting the above technical solution, compared with the prior art, the following beneficial effects are obtained:

1. Solve the paving problem of hard materials such as ceramic tile or stone as building consumables, which greatly saves labor cost and time cost;

2. When the tile is paved, the amount of adhesive used and the harmful substances generated when the adhesive is used are reduced, which is in line with the trend of green decoration;

3. On the basis of not increasing the thickness of the composite sheet, the hardness of the wear layer and the toughness of the substrate layer can be simultaneously utilized to form a nearly perfect composite sheet which can be applied to any occasion;

4. The waterproof, moisture-proof, anti-deformation and the like characteristics of the substrate layer itself enable the composite sheet of the present invention to not undergo excessive deformation upon receiving an abnormal change in temperature, thereby affecting the original structure of the composite sheet.

DRAWINGS

1 is a schematic structural view of a composite board in accordance with a preferred embodiment of the present invention;

2 is a schematic structural view of a composite board having a first bonding layer in accordance with a preferred embodiment of the present invention;

3 is a schematic structural view of a composite board having a second bonding layer in accordance with a preferred embodiment of the present invention;

4 is a schematic structural view of a composite board having both a first bonding layer and a second bonding layer in accordance with a preferred embodiment of the present invention;

Figure 5 is a schematic view showing the structure of a locking member on a substrate layer of a composite board in accordance with a preferred embodiment of the present invention;

6 is a schematic structural view of a locking component on a substrate layer of a composite board in accordance with another preferred embodiment of the present invention;

7 is a schematic structural view of a locking component on a substrate layer of a composite board in accordance with still another preferred embodiment of the present invention;

Figure 8 is a schematic view showing the structure of a locking member on a substrate layer of a composite board in accordance with still another preferred embodiment of the present invention;

9 is a schematic structural view of a locking component on a substrate layer of a composite board in accordance with still another preferred embodiment of the present invention;

Figure 10 is a schematic view showing the structure of a locking member on a substrate layer of a composite board in accordance with still another preferred embodiment of the present invention;

Figure 11 is a schematic view showing the structure of a composite board having a decorative seam in accordance with a preferred embodiment of the present invention;

Figure 12 is a schematic view showing the structure of a composite panel having decorative slits in accordance with another preferred embodiment of the present invention.

Reference mark:

100-composite sheet;

110-substrate layer, 111-locking element, 112-mounting groove, 113-mounting rib, 114-stop groove, 115-stop rib;

120- wear layer, 121-decorative seam;

130-substrate layer;

140-first bonding layer;

150 - second bonding layer.

detailed description

Advantages of the present invention are further explained below in conjunction with the accompanying drawings and specific embodiments.

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. The following description refers to the same or similar elements in the different figures unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with aspects of the present disclosure as detailed in the appended claims.

The terms used in the present disclosure are for the purpose of describing particular embodiments only, and are not intended to limit the disclosure. The singular forms "a", "the" and "the" It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information may also be referred to as second information without departing from the scope of the present disclosure. Similarly, the second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "when" or "in response to determination"

In the description of the present invention, it is to be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship of the indications of "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present invention and simplifying the description, rather than It is to be understood that the device or elements referred to have a particular orientation, are constructed and operated in a particular orientation and are therefore not to be construed as limiting.

In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "mounted", "connected", and "connected" are to be understood broadly, and may be, for example, mechanical or electrical, or both. The internal communication of the components may be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms may be understood according to specific circumstances.

In the following description, the use of suffixes such as "module", "component" or "unit" for indicating an element is merely an explanation for facilitating the present invention, and does not have a specific meaning per se. Therefore, "module" and "component" can be used in combination.

Referring to Figures 1-4, a schematic structural view of a composite panel 100 in accordance with a preferred embodiment of the present invention is shown. In this embodiment, the composite panel 100 includes four main substrates, namely a substrate layer 110, a wear layer 120, a substrate layer 130, and a first bonding layer 140. The substrate layer 110 serves as a core of the composite sheet 100, is disposed in the middle portion of the composite sheet 100, or is bonded as a bottom layer to a floor or wall surface on which the composite sheet 100 needs to be laid. The wear layer 120 is coated on the substrate layer 110 and fixed on the substrate layer 110 by an adhesive or other processing method without using an adhesive. The first bonding layer 140 is bonded to the substrate layer 110. Between the wear resistant layers 120, which may be a PVC layer, is used to increase the flexibility of the substrate layer 110. The substrate layer 130 is disposed on the other side of the substrate layer 110 relative to the wear layer 120, that is, the wear layer 120 and the substrate layer 130 are disposed on both sides of the substrate layer 110. The substrate layer 130 is also relatively fixed to the substrate layer 110. After the substrate layer 130 is selected, it may be an IXPE plastic layer, an EVA, a Cork cork layer, etc., for reducing noise and increasing the softness of the composite board 100.

More specifically, the wear-resistant layer 120 faces the exterior of the floor or wall surface on which the composite floor is laid, and directly contacts the furniture, the user, etc., and the surface thereof is optionally covered with a non-slip film, a wear-resistant film, a matt film, and the like. Used to enhance wear resistance or decorative effects.

In a preferred embodiment, the substrate layer 110 comprises a composite of stone powder and plastic, or a common wood floor, etc., and may also be a pressed-chip material including bamboo chips, wood chips, cork chips or a mixture, or may be High density polyethylene material excluding crumb material, either native PVC, recycled PVC, or a combination of the two. Regardless of which of the above ingredients is used, the composite material is press-formed into the composite sheet 100 after the materials used are mixed. Similarly, the wear layer 120 comprises a hard material or consists essentially of a hard material mixed with other additive materials.

More specifically, the substrate layer 110 comprises a composite of WPC wood-plastic flooring or SPC stone-plastic flooring. The main components of SPC stone plastic flooring include polyvinyl chloride, calcium carbonate, stabilizer, yellow foam (ADC foaming agent), white foam (NC foaming agent), and other chemical additives, such as lubricants, antibacterial agents. One or more of a stabilizer, a toner, an anti-UV agent, and a binder. When manufacturing SPC stone-plastic floor, the PVC substrate is extruded through an extruder combined with a T-die, and the PVC wear layer, PVC color film and PVC substrate are respectively heated and bonded by a three-roll or four-roll calender. After embossing, the process is simple, the bonding is done by heat, and no glue is needed. More specifically, the preparation can be completed by the following steps:

Mixing

After metering according to the material ratio, it is introduced into the high-speed mixer for hot mixing. The hot mixing temperature can be 125 ° C, which is used to make the various materials mix evenly, remove the moisture in the material, and then mix into the cold mix after hot mixing to cool the material. To prevent agglomeration and discoloration, the cold mixing temperature can be 55 ° C, and finally the homogeneously mixed material is cooled.

2. Extrusion

The material is added to a twin-screw extruder, heated and extruded, and then extruded into a sheet die, and the formed sheet is subjected to a four-roll calender, the substrate is fixed in thickness, and the multi-step paste film is attached. The wear layer 120 (which may be omitted in the present invention) is post-cooled and finally cut into shape.

3.UV tempering

The material after cutting and forming is subjected to surface UV and tempering, wherein the temperature of the hot water used for tempering is between 80 and 120 ° C, and the temperature of cold water is about 10 ° C.

4. Slitting and slotting + packaging

Finally, the material is cut and slotted, trimmed, chamfered, and packaged and transported after the inspection is completed.

The materials used in SPC stone-plastic flooring are environmentally friendly and do not contain harmful substances such as heavy metals, phthalates, methanol, etc., and are 100% formaldehyde-free. Structurally, SPC stone plastic floor thickness is only 4-5.5 mm, non-toxic and tasteless, not afraid of water, not afraid of fire, not afraid of tide; scratch resistance, resource use, anti-slip performance, SPC stone plastic floor is better than laminate flooring. In addition to the above basic properties, SPC stone plastic flooring also has shrinkage: ≤ 1 ‰ (after tempering), ≤ 2.5 ‰ (before tempering), and its floor density is about 1.9 ~ 2 tons / cubic meter To make its physical indicators stable and reliable, and the chemical indicators meet international and national standards.

If WPC wood-plastic floor is used as the composite, WPC is the abbreviation of Wood Plastic Composition, which is mainly composed of wood (wood cellulose, plant cellulose) and thermoplastic polymer materials (plastics) and processing aids. The material is made by mixing and then being extruded by the mold equipment, and has the properties and characteristics of wood and plastic. In addition to the above basic ingredients, WPS wood plastic flooring also includes: foaming regulator (methyl methacrylate-butyl acrylate-styrene polymer), calcium zinc stabilizer (zinc stearate, calcium stearate), Internal lubrication 60, PE wax (Fischer-Tropsch wax), yellow foam (ADC foaming agent), white foaming (NC foaming agent), high-temperature lubricating (oxidized polyethylene wax), any one or more. WPC wood-plastic flooring has the same processing characteristics as wood. It can be sawed, drilled and nailed with ordinary tools. It is very convenient and can be used like ordinary wood. At the same time, it has the woody feel of wood and the water and corrosion resistance of plastic, making it an excellent outdoor waterproof and anticorrosive building material.

In addition, WPC wood-plastic flooring also has its own characteristics in the following performance:

1, physical properties: good strength, high hardness, non-slip, wear-resistant, no cracking, no insects, low water absorption, anti-aging, corrosion resistance, anti-static and ultraviolet, insulation, heat insulation, flame retardant, resistant to 75 ° C High temperature and low temperature of -40 °C.

2, environmental performance: ecological wood, environmentally friendly wood, renewable, does not contain toxic substances, dangerous chemical components, preservatives, etc., no formaldehyde, benzene and other harmful substances released, will not cause air pollution and environmental pollution, can be 100% recycled It can be biodegraded by reuse and reprocessing.

3, the appearance of texture: with the natural appearance and texture of wood. It has better dimensional stability than wood, no wood knots, no cracks, warpage and deformation. The product can be made into a variety of colors, and the surface does not need secondary paint to last for a long time.

4. Processing performance: It has the secondary processing property of wood, such as sawing, planing, bonding, fixing with nails or screws, standard specifications of various profiles, and quick and convenient construction and installation. Through a variety of operations, it can be processed into various facilities and products.

In addition to the above WPC wood plastic floor and SPC stone plastic floor, it can be understood that the base material layer 110 can also be composed of a wood substrate including wood powder, a board not including wood powder, a PVC wood plastic floor, a PVC stone plastic floor, and the like. . Considering that the base material layer 110 needs to have both water repellency, moisture resistance, high temperature resistance, low temperature resistance and the like, the WPC wood plastic floor and the SPC stone plastic floor are preferred embodiments.

Correspondingly, the hard material can be selected from tiles or stone. The main components of ceramic tiles are clay, quartz, feldspar and other three types of mining materials and some chemical raw materials. Among them, clay (kaolin) is a plastic substance, and the main chemical component is Al ₂ O ₃ , which plays a role in plasticity and bonding during production to ensure the strength of the dry billet and various performances after firing. Quartz (silica sand) is an inert material that is viscous. The main chemical component, SiO ₂ , reduces the viscosity of the blank. During the firing, part of the quartz is dissolved in the feldspar glass to increase the viscosity of the liquid phase, prevent high temperature deformation, and act as a skeleton in the porcelain blank after cooling. Feldspar (stone powder) is a flux raw material. The main chemical components are K ₂ O, Na ₂ O, CaO, MgO. After melting at a high temperature, a part of quartz and kaolin decomposition products can be dissolved, and the melted high-viscosity glass can perform high-temperature cementation. Glaze is a colorless or colored glassy layer covering the surface of ceramic products. It is made of mineral raw materials (feldspar, quartz, talc, kaolin, etc.) and chemical raw materials in a certain proportion (some raw materials can be made into frit first) After being ground to form a glaze slurry, it is applied to the surface of the green body and calcined at a certain temperature. It can increase the mechanical strength, thermal stability and dielectric strength of the product, as well as beautify the utensils, facilitate washing, and not be eroded by dust.

Stone can be divided into natural stone and artificial stone. Natural stone is often used for laying marble on the ground. The artificial stone is made of quartz stone. The marble material is CaCO ₃ , the main component of limestone, and the main component of quartz is SiO ₂ . Marble is used as a building material, and quartz stone is made of quartz sand, quartz refractory and artificial stone. Marble is a natural stone with uneven texture and gaps or small holes. Marble may have radiation or harmful substances. Regardless of the above types of stone, it has the characteristics of compact structure, good compressive strength, natural texture, heavy texture, solemn majesty, minimal linear expansion coefficient, good rigidity, high hardness, strong wear resistance and small temperature deformation. And maintenance, maintenance is simple and convenient, long service life, no magnetization, no stagnation, no moisture, flat surface.

Due to the above-mentioned properties of the existing hard materials, it is necessary to install the adhesive on the lower mounting surface of the ceramic tile or the stone, cement, etc. on the paving surface during installation, and the installation personnel need to apply the paving surface first. After the cement is cemented, the tiles are laid one by one according to the design of the floor or the wall. The installation takes a long time and is cumbersome. Therefore, according to the above embodiment, the base material layer 110 has a good toughness, a small shape variable after being affected by temperature, and the wear layer 120 has a high hardness but is susceptible to cracking by external stress. After the combination of the two, the substrate layer 110 can act as an auxiliary mounting layer of the wear layer 120, and the wear layer 120 further increases the pressure resistance and deformation resistance of the substrate layer 110. Therefore, further, on the substrate layer 110, a fixing member is further provided, and the fixing member may be integrally formed with the substrate layer 110, or may be additionally installed, and disposed on both sides of the substrate layer 110, when the user needs When two pieces and two or more composite sheets 100 are joined, it is only necessary to fix one side (for example, the left side) of the base material layer 110 of the composite sheet 100 to the base layer 110 of the adjacent composite sheet 100. The fixing elements on the opposite side (for example, the right side) can be fixed to each other to fix the relative positions of the two composite sheets 100. It can be understood that during the installation process, the wear layer 120 no longer needs to be coated with an adhesive, and the required materials, mounting surfaces, etc. of the paving will be completed by the substrate layer 110, which greatly saves labor costs. And time cost.

When the composite sheet 100 is molded, the first bonding layer 140 may be formed by pressing the substrate layer 110 and the wear layer 120 at a high temperature, or both sides of the first bonding layer 140 may be coated with a binder and low temperature. Cold press forming. The above molding process can be performed at the manufacturing plant of the composite sheet 100 without requiring the user to operate at the installation site. For floors or walls with composite panels 100, you can choose to self-level or level the ground; for example: concrete floor, terrazzo floor, tile, marble and wooden floor, and remove oil and dust on the floor and wall before installation, dust Wait, clean and residue free. When the composite sheet 100 is mounted, the first composite sheet 100 is placed from the upper left corner of the room having the paving surface according to the shape of the substrate layer 110, and the fixing member is exposed outward. In order to prevent the possible natural expansion of the composite floor, a certain gap should be reserved between the ground and the wall. The larger the area to be laid, the wider the gap should be reserved. When the second composite sheet 100 of the first row is laid, the fixing elements of the second composite sheet 100 are inserted into the fixing members of the first composite sheet 100. Continuing to use the above method, other composite panels 100 are installed along the first row, and so on, all of the composite panels 100 are installed.

Referring to FIGS. 3 and 4, in various embodiments having or without the first bonding layer 140, the composite panel 100 may further include a second bonding layer 150 bonded to the substrate layer 110 and the substrate layer. 130, or in embodiments without a substrate layer 130, is mounted on the paving surface by a second bonding layer 150. The second bonding layer 150 may also be a PVC layer. The PVC layer is bonded to the paving surface by an adhesive. The bonding strength between the PVC layer and the ground makes the overall structural bonding of the composite panel 100 more secure.

In another preferred embodiment, the fixing component disposed on the substrate layer 110 is a locking component 111, and the locking component 111 is a pair of latches integrally formed with a WPC wood-plastic floor or a SPC stone-plastic floor, each pair The locking elements 111 are respectively disposed on both sides of the substrate layer 110, that is, on both sides of each of the substrate layers 110, asymmetric components such as the mounting groove 112 and the mounting rib 113 are provided as a substrate layer. When the mounting ribs 113 of the 110 are inserted into the mounting slots 112 of the adjacent blocks, the mounting ribs 113 will be mated with the mounting slots 112 such that the adjacent substrate layers 110 are also relatively fixed to each other.

Referring to Figures 5-10, the structure of the latching element 111 in various embodiments is shown, respectively. According to the illustrated embodiment, the mounting rib 113 of the locking element 111 further includes a limiting groove 114, and the surface of the mounting groove 112 protrudes to form a limiting rib 115. When the mounting groove 112 is fitted with the mounting rib 113, the mounting groove is usually installed. The notch of the 112 is designed to be smaller than the end of the mounting rib 113. Therefore, the mounting rib 113 cannot be inserted into the mounting groove 112 along the opening direction of the notch itself, and needs to be inserted laterally along the groove direction of the mounting groove 112, thereby utilizing the groove. The size of the port and the mounting rib 113 is such that the mounting rib 113 is engaged in the mounting groove 112. At the same time, based on the opening of the limiting slot 114 and the limiting rib 115, the limiting rib 115 will also be inserted into the limiting slot 114 when laterally inserted, thereby further limiting the axial and radial displacement between the substrate layers 110. The cross-sectional shape of the mounting groove 112 and the mounting rib 113, the limiting groove 114, and the limiting rib 115 may have various irregular shapes such as an approximately trapezoidal shape or an approximately triangular shape. It can be understood that the mounting groove 112 and the mounting rib 113, the limiting groove 114 and the limiting rib 115 are in contact with each other at a partial position, and a gap is left between the two positions for heat deformation, and the installation and disassembly are also convenient.

Referring to FIG. 11, the base material layer 110 and the wear layer 120 are each formed in a regular rectangular shape. The base material layer 110 faces the wear layer 120 as a mounting surface, and the wear layer 120 is mounted on the mounting surface of the base material layer 110 to form a composite sheet. When the overall structure of 100, the size of the wear layer 120 is less than or equal to the mounting surface of the substrate layer 110 such that a pair of opposite edges of the wear layer 120 fits against the opposite edges of the mounting surface when the composite sheet 100 is mounted on the ground or On the wall surface, the pair of opposite edges of the substrate layer 110 cannot be seen when viewed in a direction perpendicular to the ground or the wall. When the other pair of opposite edges of the wear layer 120 are disposed, the other pair of opposite edges of the substrate layer 110 may be selected to be attached, or more inward, such that the other pair of opposite edges are disposed on the mounting surface. In the range, after the adjacent composite sheet 100 is installed, the base layer 110 of the two composite sheets 100 is closely adhered, and a certain gap is left between the wear-resistant layers 120 for filling the filler or for preserving the tile. Sewing 121 (beauty seam).

The opposite edges described above mean a pair of opposing long or short sides on the substrate layer 110 and the wear layer 120. If the substrate layer 110 and/or the wear layer 120 itself is of an irregular shape, the opposite edges may be adjacent or non-adjacent straight segments or curved segments.

Continuing to refer to FIG. 11 , the wear layer 120 may also be formed by multiple pieces or integrally formed. When the plurality of wear layers 120 are bonded and spliced on a base layer 110 , a gap is reserved between the wear layers 120 . The function is the decorative slit 121; when integrally formed, the surface of the wear-resistant layer 120 is provided with a recessed decorative slit 121, and the decorative slit 121 is parallel to the width direction of the wear-resistant layer 120. With the above configuration, after the paving of the composite panel 100 of the present invention, it is not necessary to separately provide the decorative slit 121, that is, the plurality of processes originally required for paving the tile, all in the composite panel 100. Completed in the production process, greatly reducing the labor and time costs of the user.

Referring to FIG. 12, a structure in which a plurality of wear-resistant layers 120 are formed by a predetermined opening of a decorative slit 121 on a base material layer 110 in FIG. 11 is provided. In the illustration, a single-piece base material layer 110 is provided. The single wear layer 120 has a pre-configured molding effect at the time of manufacture, which simplifies the user's installation process.

The invention also discloses a manufacturing method of a composite board, which comprises the following steps:

Step S100: taking a substrate layer as a core of the composite sheet;

Step S200: opening fixing elements on both sides of the substrate layer, and fixing components on the substrate layer of the adjacent composite sheet are mutually fitted, and the composite sheet can be relatively fixed;

Step S300: laying a wear layer on the substrate layer and fixing it on the substrate layer. Since the wear layer and the substrate layer are relatively fixed, after the base layer is installed, the position of the wear layer is also fixed together, thereby realizing that the wear layer itself does not need to be configured and installed, and the base layer can be completed.

In the above manufacturing method, it can be understood that, in the construction industry itself, the basic requirement is that the overall thickness of the plurality of composite sheets is the same, and the thickness of the base layer and the wear layer of the composite sheet laid on the same pavement surface is the same. It is basically the same. And because the substrate layer is used for fixed installation, instead of the thickness of the existing tile, a part of the thickness can be replaced, that is, a part of the tile is replaced, so that the thickness of the composite plate is not increased compared with the thickness of the existing tile. That is, there is no problem of reducing the height reduction of the user's indoor space.

It should be noted that the embodiments of the present invention are preferred embodiments, and are not intended to limit the scope of the present invention. Any one skilled in the art may use the above-disclosed technical contents to change or modify the equivalent embodiments. Any modification or equivalent changes and modifications of the above embodiments in accordance with the technical spirit of the present invention are still within the scope of the technical solutions of the present invention.

Claims

A composite board characterized by comprising:

a substrate layer forming a core of the composite sheet;

a wear layer covering the substrate layer and relatively fixed to the substrate layer;

a substrate layer disposed on the other side of the substrate layer relative to the wear layer and relatively fixed to the substrate layer;

a first bonding layer bonded between the substrate layer and the wear layer, wherein

The substrate layer further includes a fixing member disposed on both sides of the substrate layer, and when at least two composite sheets are joined, the fixing members are coupled to each other to relatively fix the composite sheet.
The composite panel according to claim 1 wherein:

The substrate layer comprises a composite of stone powder and plastic;

The wear layer comprises a hard material.
The composite sheet according to claim 2, wherein

The composite is WPC wood plastic floor or SPC stone plastic floor;

The hard material is a tile or stone.
The composite panel according to claim 1 wherein:

The substrate layer is bonded to the wear layer and then formed at a high temperature or a cold press.
The composite panel according to claim 1 wherein:

The composite sheet further includes:

The second bonding layer is bonded between the substrate layer and the substrate layer.
The composite panel according to claim 1 wherein:

The fixing element is a locking element;

The locking component includes a mounting groove and a mounting rib disposed on two sides of the base material layer, and the mounting rib is matched with the mounting groove to fix a plurality of the base material layers.
A composite panel according to claim 6 wherein:

The mounting rib further includes a limiting groove, and a surface of the mounting groove protrudes to form a finite rib;

The limiting ribs are mated with the limiting slots to limit axial and radial displacement between the plurality of substrate layers.
The composite panel according to claim 1 wherein:

The substrate layer includes a mounting surface facing the wear layer;

A pair of opposite edges of the wear layer are attached to opposite edges of the mounting surface, and another pair of opposite edges are disposed within a projecting range of the mounting surface.
The composite panel according to claim 1 wherein:

The surface of the wear layer is pre-opened with a decorative seam;

The decorative slit is parallel to the width direction of the wear layer.
A method of manufacturing a composite panel, comprising the steps of:

Step S100: taking a substrate layer as a core of the composite sheet;

Step S200: opening fixing elements on both sides of the substrate layer for relatively fixing the composite plate;

Step S300: laying a wear layer on the substrate layer and fixing on the substrate layer.