Wear-resistant floor / wallboard with PVC (polyvinyl chloride) resin base material and preparation method of wear-resistant floor / wallboard

Abstract

The invention discloses a wear-resistant floor / wallboard of a PVC resin base material, the wear-resistant floor / wallboard is composed of a plurality of floor units, each floor unit is composed of a wear-resistant layer, a printing decoration layer and a bottom layer, a connecting layer is arranged between the wear-resistant layer and the printing decoration layer, the wear-resistant layer or the printing decoration layer is coated with the connecting layer firstly, the wear-resistant layer is made of aluminum oxide wear-resistant paper, and the bottom layer is made of aluminum oxide wear-resistant paper. A middle layer is also arranged between the printing decoration layer and the bottom layer, the middle layer is one or two of a composite middle layer and a glass fiber layer, and the bottom layer is one of a composite backing material layer and an extruded hard PVC (Polyvinyl Chloride) layer. The wear-resistant layer enables the floor / wallboard to have very high wear resistance and hardness, storage space of the decorative layer does not need to be additionally increased, storage cost is saved, a back balance layer does not need to be used in a product structure, operation is convenient and fast in the actual production process, the production technological process is simplified, and production efficiency is improved. The heat balance of the product can be easily regulated and controlled through different combinations of the middle layer and the bottom layer, and the production difficulty is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of flooring, and in particular to a wear-resistant flooring / wallboard of a PVC resin substrate and a manufacturing method thereof. Background Art

[0002] The main floor / wall decoration materials currently on the market include ceramic tiles, solid wood / composite flooring, laminate flooring, bamboo fiber integrated wallboard and PVC floor / wallboard. Due to the unique material and superb performance of PVC floor / wallboard, as well as the convenience of laying, quick construction, reasonable price and high safety, it is widely used in public places such as offices, schools, hospitals, pharmaceutical factories, sports venues, entertainment venues, shopping malls, restaurants, hotels and personal homes. However, the surface wear and scratch resistance of PVC floor / wallboard is weaker than that of other decorative materials and needs to be improved.

[0003] Laminate flooring consists of a wear-resistant layer, a decorative layer, a base layer, and a balance layer. From top to bottom, the first layer is the wear-resistant layer, which is mainly composed of Al2O3 (aluminum oxide), and has strong wear resistance and hardness; the second layer is the decorative layer, which is a layer of paper impregnated with melamine resin, and the paper is printed with wood grain or other patterns imitating precious tree species; the third layer is the base layer, which is a medium-density or high-density laminate, which is treated with high temperature and high pressure, and the basic material is wood fiber; the fourth layer is the balance layer, which is a layer of kraft paper, which has a certain strength and thickness, and is impregnated with resin to prevent moisture and deformation of the floor. Advantages of laminate flooring: wear resistance, about 10-30 times more than ordinary painted floors; beautiful, and various wood grains, patterns, and colors can be simulated by computer. However, laminate flooring has the following disadvantages: ① The base material of laminate flooring is made of medium and high-density boards, which have low relative density and large expansion coefficient. Once the laminate flooring is flooded after paving, if it is not wiped in time, it is easy to cause foaming and deformation due to water absorption and expansion. Therefore, try to avoid flooding of laminate flooring. ② Laminate flooring uses density board as the base plate, which is pressed by wood powder + glue. It is not breathable, has a poor foot feel, is not water-resistant, not moisture-proof, and has a high formaldehyde release. ③ Laminate flooring is prone to the following problems after installation: a. bulging, b. deformation, c. cracking, etc. Laminate flooring has poor waterproof and moisture-proof properties, so it is necessary to do a good job of moisture-proof treatment during installation. In order to prevent moisture, moisture-proof plastic cloth and PE floor mats must be installed.

[0004] The invention patent "A super wear-resistant, scratch-resistant and waterproof plastic floor and its manufacturing method" applied by the applicant on July 7, 2017, the basic components of the plastic floor are as follows from top to bottom: the first layer is the wear-resistant layer, the second layer is the decorative layer, the third layer is the adhesive connection layer, the fourth layer is the base material layer, the fifth layer is the adhesive connection layer, and the sixth layer is the balance layer. The disadvantages of this plastic floor are as follows: ① The product structure is relatively complex. In order to achieve thermal balance, this product must add an adhesive connection layer and a balance layer on the back of the base material; ② Increase the warehouse inventory volume. The material of the second decorative layer of the product is different from that of the traditional PVC color film layer, and an additional decorative layer storage area is required during production; ③ The raw materials have a short service life and high requirements for the storage environment. The wear-resistant layer, decorative layer, and balance layer are all treated with melamine impregnation, and have high requirements for the storage environment and temperature. When storing melamine decorative paper in a warehouse, the appropriate relative humidity is about 60%, and the room temperature cannot exceed 25 degrees Celsius to ensure that the state and technical indicators of the veneer paper do not change. If the temperature or humidity is too high, the resin component will become soft and the veneer paper will easily stick. On the other hand, if the temperature is too low, the melamine decorative paper will easily become brittle, which is not allowed to happen. And the best service life is 3 months; ④ The production operation is inconvenient and inefficient. The product consists of at least 6 layers. Since the wear-resistant layer, decorative layer, and balance layer are all fragile paper materials, you need to be very careful when laying the mold and handle it with care; during hot pressing mold production, each layer needs to be placed separately, which increases the production time cycle and reduces production efficiency; ⑤ There are differences in the heat conduction of the equipment, and the thermal balance is difficult to find. During the production process, since the hot pressing production process uses multi-layer laminated hot pressing products, the temperature conduction between each layer of laminate is inconsistent, which makes it difficult for the surface temperature of the product to be synchronized with the bottom temperature, and it is difficult to find the absolute thermal balance relationship point of the product, and the thermal warping performance of the product is often unstable. Summary of the invention

[0005] The object of the present invention is to provide a wear-resistant floor / wall panel based on a PVC resin substrate and a method for manufacturing the same, so as to solve the problems raised in the above-mentioned background technology.

[0006] A wear-resistant floor / wall panel of PVC resin substrate, composed of multiple floor units, the floor units are composed of a wear-resistant layer, a printed decorative layer and a bottom layer, a connecting layer is arranged between the wear-resistant layer and the printed decorative layer, the connecting layer is first coated on the wear-resistant layer or the printed decorative layer. The wear-resistant layer is aluminum oxide wear-resistant paper.

[0007] Furthermore, an intermediate layer is provided between the printed decoration layer and the bottom layer.

[0008] Furthermore, the middle layer is one or both of a composite middle layer and a glass fiber layer.

[0009] Furthermore, the bottom layer is one of a composite base material layer and an extruded hard PVC layer.

[0010] Furthermore, a two-component adhesive layer and an extruded foamed PVC layer are sequentially arranged on the back side of the bottom layer.

[0011] Furthermore, the printed decorative layer is a PVC printed color film with a pattern on one side and a solid color on the other side, and the thickness is 0.05-0.20 mm.

[0012] Furthermore, the floor unit is composed of five layers in total from the front to the back, namely, a wear-resistant layer, a connecting layer, a printed decorative layer, a composite middle layer and a composite base material layer.

[0013] Furthermore, the floor unit is composed of seven layers in total from the front to the back, namely, a wear-resistant layer, a connecting layer, a printed decorative layer, a composite middle layer, a glass fiber layer, a composite middle layer and a composite base material layer.

[0014] Furthermore, the floor unit is composed of nine layers in total from the front to the back, namely, a wear-resistant layer, a connecting layer, a printed decorative layer, a composite middle layer, a glass fiber layer, a composite middle layer, a glass fiber layer, a composite middle layer and a composite base material layer.

[0015] Furthermore, the floor unit is composed of four layers in total from the front to the back, namely, a wear-resistant layer, a connecting layer, a printed decorative layer and an extruded hard PVC layer.

[0016] Furthermore, the floor unit is composed of six layers in total from the front to the back, namely, a wear-resistant layer, a connecting layer, a printed decorative layer, a composite base material layer, a two-component adhesive layer and an extruded foamed PVC layer.

[0017] Furthermore, the wear-resistant layer has a gram weight range of 10-100g.

[0018] Furthermore, the glass fibers in the glass fiber layer are mesh glass fibers or glass fiber mats, with a gram weight range of 10-250 g / m 2 .

[0019] Furthermore, the total thickness of the floor unit is 2-12 mm.

[0020] A method for manufacturing a wear-resistant floor / wall panel based on a PVC resin substrate comprises the following steps:

[0021] 1) The wear-resistant layer, the printed decorative layer, the middle layer and the bottom layer are processed by flat plate vulcanization hot pressing molding or by using a multi-layer hot laminating machine or an extrusion laminating automatic line for laminating operation, and after the hot processing stage is completed, they are cooled by water cooling to obtain a first semi-finished product; the parameters of hot pressing molding and laminating of the multi-layer hot laminating machine are as follows: hot processing temperature range: 140-185°C, during hot laminating, the pressure range applied to the product: 3-10Mpa, the time range used in the hot laminating stage: 1000-3500s; during the cooling stage, the pressure range applied to the product: 3-15Mpa, the time range used in the cooling stage: 1000-3000s;

[0022] 2) Tempering the first semi-finished product: conveying the first semi-finished product to a tempering furnace at 100-160° C., subjecting it to continuous heating for 60-420 seconds, and then conveying it out of the tempering furnace to obtain a second semi-finished product with stable heat shrinkage performance after natural environment cooling, water treatment cooling or wind treatment cooling. When conveying it out of the tempering furnace, the surface temperature of the product is controlled to be 70-120° C.;

[0023] 3) The second semi-finished product is cut into products of required specifications and then slotted to obtain finished floor unit products.

[0024] Furthermore, the step 3) is replaced by the following step: using two-component glue to press the second semi-finished product and the extruded foamed PVC board, and after they are firmly bonded, a third semi-finished product with a two-component adhesive layer and an extruded foamed PVC layer is obtained, and then the third semi-finished product is cut into products of required specifications and then slotted to obtain a finished floor unit product.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The wear-resistant layer of the present invention enables the floor / wall panel to have strong wear resistance and hardness, solves the problem that the laminate floor is not waterproof and the problem that the PVC floor / wall panel has poor wear resistance and scratch resistance. The printed decorative layer uses a PVC printed color film that is easily bonded to the PVC resin substrate, and there is no need to increase the storage space of the decorative layer, thus saving storage costs. There is no need to use a back balancing layer in the product structure, and the basic structure is extremely streamlined. The operation is convenient and fast in the actual production process, which simplifies the production process, improves production efficiency and production capacity, and saves the cost of raw materials. The thermal balance of the product can be easily adjusted through different combinations of the middle layer and the bottom layer, and the production difficulty is reduced, truly realizing the functions of the PVC floor / wall panel with super wear resistance, super scratch resistance and super waterproofness. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the product structure of Embodiments 1-3 of the present invention;

[0028] Figure 2This is a schematic diagram of the product structure of Embodiments 4-6 of the present invention;

[0029] Figure 3 This is a schematic diagram of the product structure of Examples 7-9 of the present invention;

[0030] Figure 4 This is a schematic diagram of the product structure of Embodiments 10-12 of the present invention;

[0031] Figure 5 This is a schematic diagram of the product structure of Examples 13-15 of the present invention;

[0032] In the figure: 1-wear-resistant layer; 2-printed decorative layer; 3-connecting layer; 4-composite middle layer; 5-glass fiber layer; 6-composite base material layer; 7-extruded hard PVC layer; 8-two-component adhesive layer; 9-extruded foamed PVC layer. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is described in more detail below in conjunction with specific implementations and drawings.

[0034] Example 1

[0035] A wear-resistant floor / wall panel of PVC resin substrate, composed of a plurality of floor units, wherein the floor unit is composed of five layers from the front to the back, namely, a wear-resistant layer 1, a connecting layer 3, a printed decorative layer 2, a composite intermediate layer 4 and a composite base material layer 6, wherein the wear-resistant layer 1 is aluminum oxide wear-resistant paper, and the connecting layer 3 is first coated on the wear-resistant layer 1 or the printed decorative layer 2. The printed decorative layer 2 is a PVC printed color film with a pattern on one side and a solid color on the other side, with a thickness of 0.05 mm, and the gram weight of the wear-resistant layer 1 is 10 g.

[0036] The manufacturing method of the floor unit comprises the following steps:

[0037] 1) The wear-resistant layer 1, the connecting layer 3, the printed decorative layer 2, the composite intermediate layer 4 and the composite base material layer 6 are processed by flat plate vulcanization hot pressing molding or by using a multi-layer hot laminating machine or an extrusion laminating automatic line for laminating operation, and after the hot processing stage is completed, they are cooled by water cooling to obtain a first semi-finished product; the parameters of hot pressing molding and laminating by a multi-layer hot laminating machine are as follows: hot processing temperature: 140°C, during hot laminating, the pressure applied to the product: 3Mpa, the time used in the hot laminating stage: 1000s; during the cooling stage, the pressure applied to the product: 3Mpa, the time used in the cooling stage: 1000s;

[0038] 2) Tempering the first semi-finished product: the first semi-finished product is transported to a tempering furnace at 100° C., and is continuously heated for 60 seconds. The first semi-finished product is then transported out of the tempering furnace, and is cooled by natural environment, water treatment or wind treatment to obtain a second semi-finished product with stable heat shrinkage performance. The surface temperature of the product is controlled to be 70° C. when it is transported out of the tempering furnace.

[0039] 3) The second semi-finished product is cut into products of required specifications and then slotted to obtain finished floor unit products. The total thickness of the stabilized finished floor unit products is 2 mm, the original warpage is ≤5 mm, and after the products are continuously heated at 80°C for 6 hours, the product shrinkage is ≤0.20%, and the product warpage is ≤2 mm.

[0040] The manufacturing method of the composite intermediate layer 4 and the composite base material layer 6 is as follows: 60 parts of PVC powder, 15 parts of plasticizer DOTP, 0.1 parts of heat stabilizer, and 100 parts of calcium carbonate are mixed for 30 seconds, mixed evenly and then kneaded for 40 seconds, and then calendered and extruded at 100°C. The thickness of the sheet is 0.2mm, the length is ≥0.5m, and the width is 0.5m. After cutting into required specifications, the composite intermediate layer 4 and the composite base material layer 6 are obtained, and the mesh size of the calcium carbonate is 100 mesh.

[0041] Example 2

[0042] A wear-resistant floor / wall panel of PVC resin substrate, composed of a plurality of floor units, the floor unit is composed of five layers from the front to the back, namely, a wear-resistant layer 1, a connecting layer 3, a printed decorative layer 2, a composite intermediate layer 4 and a composite base material layer 6, the wear-resistant layer 1 is aluminum oxide wear-resistant paper, the connecting layer 3 is first coated on the wear-resistant layer 1 or the printed decorative layer 2. The printed decorative layer 2 is a PVC printed color film with a pattern on one side and a solid color on the other side, with a thickness of 0.1 mm, and the gram weight of the wear-resistant layer 1 is 55 g.

[0043] The manufacturing method of the floor unit comprises the following steps:

[0044] 1) The wear-resistant layer 1, the connecting layer 3, the printed decorative layer 2, the composite intermediate layer 4 and the composite base material layer 6 are processed by flat plate vulcanization hot pressing molding or by using a multi-layer hot laminating machine or an extrusion laminating automatic line for laminating operation, and after the hot processing stage is completed, they are cooled by water cooling to obtain a first semi-finished product; the parameters of hot pressing molding and laminating by a multi-layer hot laminating machine are as follows: hot processing temperature: 162°C, during hot laminating, the pressure applied to the product: 7Mpa, the time used in the hot laminating stage: 2200s; during the cooling stage, the pressure applied to the product: 9Mpa, the time used in the cooling stage: 2000s;

[0045] 2) Tempering the first semi-finished product: the first semi-finished product is transported to a tempering furnace at 130° C., and is continuously heated for 250 seconds. The first semi-finished product is then transported out of the tempering furnace, and is cooled by natural environment, water treatment or wind treatment to obtain a second semi-finished product with stable heat shrinkage performance. The surface temperature of the product is controlled to be 95° C. when it is transported out of the tempering furnace.

[0046] 3) The second semi-finished product is cut into products of required specifications and then slotted to obtain finished floor unit products. The total thickness of the stabilized finished floor unit products is 7 mm, the original warpage is ≤5 mm, and after the products are continuously heated at 80°C for 6 hours, the product shrinkage is ≤0.20%, and the product warpage is ≤2 mm.

[0047] The manufacturing method of the composite intermediate layer 4 and the composite base material layer 6 is as follows: 72 parts of PVC powder, 27 parts of plasticizer DOTP, 1.5 parts of heat stabilizer, 0.5 parts of rosin, 0.5 parts of toughening agent CPE, 0.5 parts of color powder, and 250 parts of calcium carbonate are mixed for 1500 seconds, mixed evenly and then kneaded for 80 seconds, and then calendered and extruded at 135°C. The thickness of the sheet is 1.5 mm, the length is ≥0.5 m, and the width is 1.2 m. After cutting into required specifications, the composite intermediate layer 4 and the composite base material layer 6 are obtained, and the mesh number of the calcium carbonate is 450 mesh.

[0048] Example 3

[0049] A wear-resistant floor / wall panel of PVC resin substrate, composed of a plurality of floor units, the floor unit is composed of five layers from the front to the back, namely, a wear-resistant layer 1, a connecting layer 3, a printed decorative layer 2, a composite intermediate layer 4 and a composite base material layer 6, the wear-resistant layer 1 is aluminum oxide wear-resistant paper, the connecting layer 3 is first coated on the wear-resistant layer 1 or the printed decorative layer 2. The printed decorative layer 2 is a PVC printed color film with a pattern on one side and a solid color on the other side, with a thickness of 0.20 mm, and the wear-resistant layer 1 has a gram weight of 100 g.

[0050] The manufacturing method of the floor unit comprises the following steps:

[0051] 1) The wear-resistant layer 1, the connecting layer 3, the printed decorative layer 2, the composite intermediate layer 4 and the composite base material layer 6 are processed by flat plate vulcanization hot pressing molding or by using a multi-layer hot laminating machine or an extrusion laminating automatic line for laminating operation, and after the hot processing stage is completed, they are cooled by water cooling to obtain a first semi-finished product; the parameters of hot pressing molding and laminating by a multi-layer hot laminating machine are as follows: hot processing temperature: 185°C, during hot laminating, the pressure applied to the product: 10Mpa, the time used in the hot laminating stage: 3500s; during the cooling stage, the pressure applied to the product: 15Mpa, the time used in the cooling stage: 3000s;

[0052] 2) Tempering the first semi-finished product: the first semi-finished product is transported to a tempering furnace at 160° C., and continuously heated for 420 seconds. The first semi-finished product is then transported out of the tempering furnace, and then cooled by natural environment, water treatment or wind treatment to obtain a second semi-finished product with stable thermal shrinkage performance. The surface temperature of the product is controlled to be 120° C. when it is transported out of the tempering furnace.

[0053] 3) The second semi-finished product is cut into products of required specifications and then slotted to obtain finished floor unit products. The total thickness of the stabilized finished floor unit products is 12 mm, the original warpage is ≤5 mm, and after the product is continuously heated at 80°C for 6 hours, the product shrinkage is ≤0.20%, and the product warpage is ≤2 mm.

[0054] The manufacturing method of the composite intermediate layer 4 and the composite base material layer 6 is as follows: 85 parts of PVC powder, 40 parts of plasticizer DOTP, 3 parts of heat stabilizer, 1 part of rosin, 1 part of toughening agent CPE, 1 part of color powder, and 400 parts of calcium carbonate are mixed for 3000 seconds, mixed evenly and then kneaded for 120 seconds, and then calendered and extruded at 170°C. The thickness of the sheet is 3 mm, the length is ≥0.5 m, and the width is 2 m. After cutting into required specifications, the composite intermediate layer 4 and the composite base material layer 6 are obtained, and the mesh number of the calcium carbonate is 800 mesh.

[0055] Example 4

[0056] A wear-resistant floor / wall panel based on PVC resin, composed of multiple floor units, the floor unit is composed of seven layers from the front to the back, namely, a wear-resistant layer 1, a connecting layer 3, a printed decorative layer 2, a composite intermediate layer 4, a glass fiber layer 5, a composite intermediate layer 4 and a composite base material layer 6, the wear-resistant layer 1 is aluminum oxide wear-resistant paper, the connecting layer 3 is first coated on the wear-resistant layer 1 or the printed decorative layer 2. The printed decorative layer 2 is a PVC printed color film with a pattern on one side and a solid color on the other side, with a thickness of 0.05mm, the wear-resistant layer 1 has a gram weight of 10g, and the glass fiber in the glass fiber layer 5 is a mesh glass fiber or a glass fiber mat, with a gram weight of 10g / m 2 .

[0057] The manufacturing method of the floor unit comprises the following steps:

[0058] 1) The wear-resistant layer 1, the connecting layer 3, the printed decorative layer 2, the composite intermediate layer 4, the glass fiber layer 5, the composite intermediate layer 4 and the composite base material layer 6 are processed by flat plate vulcanization hot pressing molding or by using a multi-layer hot laminating machine or an extrusion laminating automatic line for laminating operation, and after the hot processing stage is completed, they are cooled by water cooling to obtain a first semi-finished product; the parameters of hot pressing molding and laminating by a multi-layer hot laminating machine are as follows: hot processing temperature: 140°C, during hot laminating, the pressure applied to the product: 3Mpa, the time used in the hot laminating stage: 1000s; during the cooling stage, the pressure applied to the product: 3Mpa, the time used in the cooling stage: 1000s;

[0059] 2) Tempering the first semi-finished product: the first semi-finished product is transported to a tempering furnace at 100° C., and is continuously heated for 60 seconds. The first semi-finished product is then transported out of the tempering furnace, and is cooled by natural environment, water treatment or wind treatment to obtain a second semi-finished product with stable heat shrinkage performance. The surface temperature of the product is controlled to be 70° C. when it is transported out of the tempering furnace.

[0060] 3) The second semi-finished product is cut into products of required specifications and then slotted to obtain finished floor unit products. The total thickness of the stabilized finished floor unit products is 3 mm, the original warpage is ≤5 mm, and after the products are continuously heated at 80°C for 6 hours, the product shrinkage is ≤0.20%, and the product warpage is ≤2 mm.

[0061] The manufacturing method of the composite intermediate layer 4 and the composite base material layer 6 is as follows: 60 parts of PVC powder, 15 parts of plasticizer DOTP, 0.1 parts of heat stabilizer, and 100 parts of calcium carbonate are mixed for 30 seconds, mixed evenly and then kneaded for 40 seconds, and then calendered and extruded at 100°C. The thickness of the sheet is 0.2mm, the length is ≥0.5m, and the width is 0.5m. After cutting into required specifications, the composite intermediate layer 4 and the composite base material layer 6 are obtained, and the mesh size of the calcium carbonate is 100 mesh.

[0062] Example 5

[0063] A wear-resistant floor / wall panel based on PVC resin, composed of multiple floor units, the floor unit is composed of seven layers from the front to the back, namely, a wear-resistant layer 1, a connecting layer 3, a printed decorative layer 2, a composite intermediate layer 4, a glass fiber layer 5, a composite intermediate layer 4 and a composite base material layer 6, the wear-resistant layer 1 is aluminum oxide wear-resistant paper, the connecting layer 3 is first coated on the wear-resistant layer 1 or the printed decorative layer 2. The printed decorative layer 2 is a PVC printed color film with a pattern on one side and a solid color on the other side, with a thickness of 0.1mm, the wear-resistant layer 1 has a gram weight of 55g, and the glass fiber in the glass fiber layer 5 is a mesh glass fiber or a glass fiber mat, with a gram weight of 125g / m 2 .

[0064] The manufacturing method of the floor unit comprises the following steps:

[0065] 1) The wear-resistant layer 1, the connecting layer 3, the printed decorative layer 2, the composite intermediate layer 4, the glass fiber layer 5, the composite intermediate layer 4 and the composite base material layer 6 are processed by flat plate vulcanization hot pressing molding or by using a multi-layer hot laminating machine or an extrusion laminating automatic line for laminating operation, and after the hot processing stage is completed, they are cooled by water cooling to obtain a first semi-finished product; the parameters of hot pressing molding and laminating by a multi-layer hot laminating machine are as follows: hot processing temperature: 162°C, during hot laminating, the pressure applied to the product: 7Mpa, the time used in the hot laminating stage: 2200s; during the cooling stage, the pressure applied to the product: 9Mpa, the time used in the cooling stage: 2000s;

[0066] 2) Tempering the first semi-finished product: the first semi-finished product is transported to a tempering furnace at 130° C., and is continuously heated for 250 seconds. The first semi-finished product is then transported out of the tempering furnace, and is cooled by natural environment, water treatment or wind treatment to obtain a second semi-finished product with stable heat shrinkage performance. The surface temperature of the product is controlled to be 95° C. when it is transported out of the tempering furnace.

[0067] 3) The second semi-finished product is cut into products of required specifications and then slotted to obtain finished floor unit products. The total thickness of the stabilized finished floor unit products is 8 mm, the original warpage is ≤5 mm, and after the products are continuously heated at 80°C for 6 hours, the product shrinkage is ≤0.20%, and the product warpage is ≤2 mm.

[0068] The manufacturing method of the composite intermediate layer 4 and the composite base material layer 6 is as follows: 72 parts of PVC powder, 28 parts of plasticizer DOTP, 2 parts of heat stabilizer, 0.5 parts of rosin, 0.5 parts of toughening agent CPE, 0.5 parts of color powder, and 200 parts of calcium carbonate are mixed for 1500 seconds, mixed evenly and then kneaded for 80 seconds, and then calendered and extruded at 135°C. The thickness of the sheet is 1.5 mm, the length is ≥0.5 m, and the width is 1.2 m. After cutting into required specifications, the composite intermediate layer 4 and the composite base material layer 6 are obtained, and the mesh number of the calcium carbonate is 450 mesh.

[0069] Example 6

[0070] A wear-resistant floor / wall panel based on PVC resin, composed of multiple floor units, the floor unit is composed of seven layers from the front to the back, namely, a wear-resistant layer 1, a connecting layer 3, a printed decorative layer 2, a composite intermediate layer 4, a glass fiber layer 5, a composite intermediate layer 4 and a composite base material layer 6, the wear-resistant layer 1 is aluminum oxide wear-resistant paper, the connecting layer 3 is first coated on the wear-resistant layer 1 or the printed decorative layer 2. The printed decorative layer 2 is a PVC printed color film with a pattern on one side and a solid color on the other side, with a thickness of 0.20mm, the gram weight of the wear-resistant layer 1 is 100g, and the glass fiber in the glass fiber layer 5 is a mesh glass fiber or a glass fiber mat, with a gram weight of 250g / m2 .

[0071] The manufacturing method of the floor unit comprises the following steps:

[0072] 1) The wear-resistant layer 1, the connecting layer 3, the printed decorative layer 2, the composite intermediate layer 4, the glass fiber layer 5, the composite intermediate layer 4 and the composite base material layer 6 are processed by flat plate vulcanization hot pressing molding or by using a multi-layer hot laminating machine or an extrusion laminating automatic line for laminating operation, and after the hot processing stage is completed, they are cooled by water cooling to obtain a first semi-finished product; the parameters of hot pressing molding and laminating by a multi-layer hot laminating machine are as follows: hot processing temperature: 185°C, during hot laminating, the pressure applied to the product: 10Mpa, the time used in the hot laminating stage: 3500s; during the cooling stage, the pressure applied to the product: 15Mpa, the time used in the cooling stage: 3000s;

[0073] 2) Tempering the first semi-finished product: the first semi-finished product is transported to a tempering furnace at 160° C., and continuously heated for 420 seconds. The first semi-finished product is then transported out of the tempering furnace, and then cooled by natural environment, water treatment or wind treatment to obtain a second semi-finished product with stable thermal shrinkage performance. The surface temperature of the product is controlled to be 120° C. when it is transported out of the tempering furnace.

[0074] 3) The second semi-finished product is cut into products of required specifications and then slotted to obtain finished floor unit products. The total thickness of the stabilized finished floor unit products is 12 mm, the original warpage is ≤5 mm, and after the product is continuously heated at 80°C for 6 hours, the product shrinkage is ≤0.20%, and the product warpage is ≤2 mm.

[0075] The manufacturing method of the composite intermediate layer 4 and the composite base material layer 6 is as follows: 85 parts of PVC powder, 40 parts of plasticizer DOTP, 3 parts of heat stabilizer, 1 part of rosin, 1 part of toughening agent CPE, 1 part of color powder, and 400 parts of calcium carbonate are mixed for 3000 seconds, mixed evenly and then kneaded for 120 seconds, and then calendered and extruded at 170°C. The thickness of the sheet is 3 mm, the length is ≥0.5 m, and the width is 2 m. After cutting into required specifications, the composite intermediate layer 4 and the composite base material layer 6 are obtained, and the mesh number of the calcium carbonate is 800 mesh.

[0076] Example 7

[0077] A wear-resistant floor / wall panel based on PVC resin, composed of multiple floor units, the floor unit is composed of nine layers from the front to the back, namely, a wear-resistant layer 1, a connecting layer 3, a printed decorative layer 2, a composite intermediate layer 4, a glass fiber layer 5, a composite intermediate layer 4, a glass fiber layer 5, a composite intermediate layer 4 and a composite base material layer 6, the wear-resistant layer 1 is aluminum oxide wear-resistant paper, the connecting layer 3 is first coated on the wear-resistant layer 1 or the printed decorative layer 2. The printed decorative layer 2 is a PVC printed color film with a pattern on one side and a solid color on the other side, with a thickness of 0.05mm, the gram weight of the wear-resistant layer 1 is 10g, and the glass fiber in the glass fiber layer 5 is a mesh glass fiber or a glass fiber felt, with a gram weight of 10g / m 2 .

[0078] The manufacturing method of the floor unit comprises the following steps:

[0079] 1) The wear-resistant layer 1, the connecting layer 3, the printed decorative layer 2, the composite intermediate layer 4, the glass fiber layer 5, the composite intermediate layer 4, the glass fiber layer 5, the composite intermediate layer 4 and the composite base material layer 6 are processed by flat plate vulcanization hot pressing molding or by using a multi-layer hot laminating machine or an extrusion laminating automatic line for laminating operation, and after the hot processing stage is completed, the first semi-finished product is cooled by water cooling; the parameters of hot pressing molding and laminating by a multi-layer hot laminating machine are as follows: hot processing temperature: 140°C, during hot laminating, the pressure applied to the product: 3Mpa, the time used in the hot laminating stage: 1000s; in the cooling stage, the pressure applied to the product: 3Mpa, the time used in the cooling stage: 1000s;

[0080] 2) Tempering the first semi-finished product: the first semi-finished product is transported to a tempering furnace at 100° C., and is continuously heated for 60 seconds. The first semi-finished product is then transported out of the tempering furnace, and is cooled by natural environment, water treatment or wind treatment to obtain a second semi-finished product with stable heat shrinkage performance. The surface temperature of the product is controlled to be 70° C. when it is transported out of the tempering furnace.

[0081] 3) The second semi-finished product is cut into products of required specifications and then slotted to obtain finished floor unit products. The total thickness of the stabilized finished floor unit products is 4 mm, the original warpage is ≤5 mm, and after the product is continuously heated at 80°C for 6 hours, the product shrinkage is ≤0.20%, and the product warpage is ≤2 mm.

[0082] The manufacturing method of the composite intermediate layer 4 and the composite base material layer 6 is as follows: 60 parts of PVC powder, 15 parts of plasticizer DOTP, 0.1 parts of heat stabilizer, and 100 parts of calcium carbonate are mixed for 30 seconds, mixed evenly and then kneaded for 40 seconds, and then calendered and extruded at 100°C. The thickness of the sheet is 0.2mm, the length is ≥0.5m, and the width is 0.5m. After cutting into required specifications, the composite intermediate layer 4 and the composite base material layer 6 are obtained, and the mesh size of the calcium carbonate is 100 mesh.

[0083] Example 8

[0084] A wear-resistant floor / wall panel based on PVC resin, composed of multiple floor units, the floor unit is composed of nine layers from the front to the back, namely, a wear-resistant layer 1, a connecting layer 3, a printed decorative layer 2, a composite intermediate layer 4, a glass fiber layer 5, a composite intermediate layer 4, a glass fiber layer 5, a composite intermediate layer 4 and a composite base material layer 6, the wear-resistant layer 1 is aluminum oxide wear-resistant paper, the connecting layer 3 is first coated on the wear-resistant layer 1 or the printed decorative layer 2. The printed decorative layer 2 is a PVC printed color film with a pattern on one side and a solid color on the other side, with a thickness of 0.1mm, the gram weight of the wear-resistant layer 1 is 60g, and the glass fiber in the glass fiber layer 5 is a mesh glass fiber or a glass fiber felt, with a gram weight of 125g / m 2 .

[0085] The manufacturing method of the floor unit comprises the following steps:

[0086] 1) The wear-resistant layer 1, the connecting layer 3, the printed decorative layer 2, the composite intermediate layer 4, the glass fiber layer 5, the composite intermediate layer 4, the glass fiber layer 5, the composite intermediate layer 4 and the composite base material layer 6 are processed by flat plate vulcanization hot pressing molding or by using a multi-layer hot laminating machine or an extrusion laminating automatic line for laminating operation, and after the hot processing stage is completed, they are cooled by water cooling to obtain a first semi-finished product; the parameters of hot pressing molding and laminating by a multi-layer hot laminating machine are as follows: hot processing temperature: 162°C, during hot laminating, the pressure applied to the product: 7Mpa, the time used in the hot laminating stage: 2200s; during the cooling stage, the pressure applied to the product: 9Mpa, the time used in the cooling stage: 2000s;

[0087] 2) Tempering the first semi-finished product: the first semi-finished product is transported to a tempering furnace at 130° C., and continuously heated for 270 seconds. The first semi-finished product is then transported out of the tempering furnace, and then cooled by natural environment, water treatment or wind treatment to obtain a second semi-finished product with stable heat shrinkage performance. The surface temperature of the product is controlled to be 95° C. when it is transported out of the tempering furnace.

[0088] 3) The second semi-finished product is cut into products of required specifications and then slotted to obtain finished floor unit products. The total thickness of the stabilized finished floor unit products is 8 mm, the original warpage is ≤5 mm, and after the products are continuously heated at 80°C for 6 hours, the product shrinkage is ≤0.20%, and the product warpage is ≤2 mm.

[0089] The manufacturing method of the composite intermediate layer 4 and the composite base material layer 6 is as follows: 72 parts of PVC powder, 28 parts of plasticizer DOTP, 1.8 parts of heat stabilizer, 0.5 parts of rosin, 0.5 parts of toughening agent CPE, 0.5 parts of color powder, and 250 parts of calcium carbonate are mixed for 2000 seconds, mixed evenly and then kneaded for 80 seconds, and then calendered and extruded at 135°C. The thickness of the sheet is 1.5 mm, the length is ≥0.5 m, and the width is 1.5 m. After cutting into required specifications, the composite intermediate layer 4 and the composite base material layer 6 are obtained, and the mesh number of the calcium carbonate is 450 mesh.

[0090] Example 9

[0091] A wear-resistant floor / wall panel based on PVC resin, composed of multiple floor units, the floor unit is composed of nine layers from the front to the back, namely, a wear-resistant layer 1, a connecting layer 3, a printed decorative layer 2, a composite intermediate layer 4, a glass fiber layer 5, a composite intermediate layer 4, a glass fiber layer 5, a composite intermediate layer 4 and a composite base material layer 6, the wear-resistant layer 1 is aluminum oxide wear-resistant paper, the connecting layer 3 is first coated on the wear-resistant layer 1 or the printed decorative layer 2. The printed decorative layer 2 is a PVC printed color film with a pattern on one side and a solid color on the other side, with a thickness of 0.20mm, the gram weight of the wear-resistant layer 1 is 100g, and the glass fiber in the glass fiber layer 5 is a mesh glass fiber or a glass fiber felt, with a gram weight of 250g / m 2 .

[0092] The manufacturing method of the floor unit comprises the following steps:

[0093] 1) The wear-resistant layer 1, the connecting layer 3, the printed decorative layer 2, the composite intermediate layer 4, the glass fiber layer 5, the composite intermediate layer 4, the glass fiber layer 5, the composite intermediate layer 4 and the composite base material layer 6 are subjected to flat plate vulcanization hot pressing molding or a multi-layer hot laminating machine or an extrusion laminating automatic line for laminating operation, and after the hot processing stage is completed, the first semi-finished product is cooled by water cooling; the parameters of hot pressing molding and laminating by a multi-layer hot laminating machine are as follows: hot processing temperature: 185°C, during hot laminating, the pressure applied to the product: 10Mpa, the time used in the hot laminating stage: 3500s; during the cooling stage, the pressure applied to the product: 15Mpa, the time used in the cooling stage: 3000s;

[0094] 2) Tempering the first semi-finished product: the first semi-finished product is transported to a tempering furnace at 160° C., and continuously heated for 420 seconds. The first semi-finished product is then transported out of the tempering furnace, and then cooled by natural environment, water treatment or wind treatment to obtain a second semi-finished product with stable thermal shrinkage performance. The surface temperature of the product is controlled to be 120° C. when it is transported out of the tempering furnace.

[0095] 3) The second semi-finished product is cut into products of required specifications and then slotted to obtain finished floor unit products. The total thickness of the stabilized finished floor unit products is 12 mm, the original warpage is ≤5 mm, and after the product is continuously heated at 80°C for 6 hours, the product shrinkage is ≤0.20%, and the product warpage is ≤2 mm.

[0096] The manufacturing method of the composite intermediate layer 4 and the composite base material layer 6 is as follows: 85 parts of PVC powder, 40 parts of plasticizer DOTP, 3 parts of heat stabilizer, 1 part of rosin, 1 part of toughening agent CPE, 1 part of color powder, and 400 parts of calcium carbonate are mixed for 3000 seconds, mixed evenly and then kneaded for 120 seconds, and then calendered and extruded at 170°C. The thickness of the sheet is 3 mm, the length is ≥0.5 m, and the width is 2 m. After cutting into required specifications, the composite intermediate layer 4 and the composite base material layer 6 are obtained, and the mesh number of the calcium carbonate is 800 mesh.

[0097] Example 10

[0098] A wear-resistant floor / wall panel of PVC resin substrate, composed of a plurality of floor units, the floor unit is composed of four layers from the front to the back, namely, a wear-resistant layer 1, a connecting layer 3, a printed decorative layer 2 and an extruded rigid PVC layer 7, the wear-resistant layer 1 is aluminum oxide wear-resistant paper, a connecting layer 3 is provided between the wear-resistant layer 1 and the printed decorative layer 2, the connecting layer 3 is first coated on the wear-resistant layer 1 or the printed decorative layer 2. The printed decorative layer 2 is a PVC printed color film with a pattern on one side and a solid color on the other side, with a thickness of 0.05 mm, and the wear-resistant layer 1 has a gram weight of 10 g.

[0099] The manufacturing method of the floor unit comprises the following steps:

[0100] 1) The wear-resistant layer 1, the connecting layer 3, the printed decorative layer 2 and the extruded rigid PVC layer 7 are processed by flat vulcanization hot pressing molding or by using a multi-layer hot laminating machine or an extrusion laminating automatic line for laminating operation, and after the hot processing stage is completed, they are cooled by water cooling to obtain a first semi-finished product; the parameters of hot pressing molding and laminating by a multi-layer hot laminating machine are as follows: hot processing temperature: 140°C, during hot laminating, the pressure applied to the product: 3Mpa, the time used in the hot laminating stage: 1000s; during the cooling stage, the pressure applied to the product: 3Mpa, the time used in the cooling stage: 1000s;

[0101] 2) Tempering the first semi-finished product: the first semi-finished product is transported to a tempering furnace at 100° C., and is continuously heated for 60 seconds. The first semi-finished product is then transported out of the tempering furnace, and is cooled by natural environment, water treatment or wind treatment to obtain a second semi-finished product with stable heat shrinkage performance. The surface temperature of the product is controlled to be 70° C. when it is transported out of the tempering furnace.

[0102] 3) The second semi-finished product is cut into products of required specifications and then slotted to obtain finished floor unit products. The total thickness of the stabilized finished floor unit products is 3 mm, the original warpage is ≤5 mm, and after the products are continuously heated at 80°C for 6 hours, the product shrinkage is ≤0.20%, and the product warpage is ≤2 mm.

[0103] The manufacturing method of the extruded hard PVC layer 7 is as follows: 70 parts of PVC powder, 1 part of stabilizer, 3 parts of toughening agent, 1 part of PE wax, and 100 parts of calcium carbonate are put into a hot mixer at a temperature of 60°C and mixed for 300s until uniform. The materials are cooled to ≤50°C and transported to a twin-screw extruder for extrusion molding at 150°C to obtain an extruded PVC layer with a thickness of 1.5 mm. The mesh number of the calcium carbonate is 250 meshes.

[0104] Embodiment 11

[0105] A wear-resistant floor / wall panel of PVC resin substrate, composed of a plurality of floor units, the floor unit is composed of four layers from the front to the back, namely, a wear-resistant layer 1, a connecting layer 3, a printed decorative layer 2 and an extruded rigid PVC layer 7, the wear-resistant layer 1 is aluminum oxide wear-resistant paper, a connecting layer 3 is arranged between the wear-resistant layer 1 and the printed decorative layer 2, and the connecting layer 3 is first coated on the wear-resistant layer 1 or the printed decorative layer 2. The printed decorative layer 2 is a PVC printed color film with a pattern on one side and a solid color on the other side, with a thickness of 1.5 mm, and the wear-resistant layer 1 has a gram weight of 60 g.

[0106] The manufacturing method of the floor unit comprises the following steps:

[0107] 1) The wear-resistant layer 1, the connecting layer 3, the printed decorative layer 2 and the extruded rigid PVC layer 7 are processed by flat vulcanization hot pressing molding or by using a multi-layer hot laminating machine or an extrusion laminating automatic line for laminating operation, and after the hot processing stage is completed, they are cooled by water cooling to obtain a first semi-finished product; the parameters of hot pressing molding and laminating by the multi-layer hot laminating machine are as follows: hot processing temperature: 162°C, during hot laminating, the pressure applied to the product: 7Mpa, the time used in the hot laminating stage: 2200s; during the cooling stage, the pressure applied to the product: 9Mpa, the time used in the cooling stage: 2000s;

[0108] 2) Tempering the first semi-finished product: the first semi-finished product is transported to a tempering furnace at 130° C., and continuously heated for 280 seconds. The first semi-finished product is then transported out of the tempering furnace, and then cooled by natural environment, water treatment or wind treatment to obtain a second semi-finished product with stable thermal shrinkage performance. The surface temperature of the product is controlled to be 95° C. when it is transported out of the tempering furnace.

[0109] 3) The second semi-finished product is cut into products of required specifications and then slotted to obtain finished floor unit products. The total thickness of the stabilized finished floor unit products is 8 mm, the original warpage is ≤5 mm, and after the products are continuously heated at 80°C for 6 hours, the product shrinkage is ≤0.20%, and the product warpage is ≤2 mm.

[0110] The manufacturing method of the extruded hard PVC layer 7 is as follows: 82 parts of PVC powder, 7 parts of stabilizer, 18 parts of toughening agent, 6 parts of PE wax, 1.5 parts of color powder, and 250 parts of calcium carbonate are put into a hot mixer at a temperature of 95° C. and mixed for 2000 seconds until uniform. The materials after cooling to ≤50° C. are conveyed to a twin-screw extruder and extruded at 190° C. to obtain an extruded PVC layer with a thickness of 6 mm. The mesh number of the calcium carbonate is 650 mesh.

[0111] Example 12

[0112] A wear-resistant floor / wall panel of PVC resin substrate, composed of a plurality of floor units, the floor unit is composed of four layers from the front to the back, namely, a wear-resistant layer 1, a connecting layer 3, a printed decorative layer 2 and an extruded rigid PVC layer 7, the wear-resistant layer 1 is aluminum oxide wear-resistant paper, a connecting layer 3 is provided between the wear-resistant layer 1 and the printed decorative layer 2, and the connecting layer 3 is first coated on the wear-resistant layer 1 or the printed decorative layer 2. The printed decorative layer 2 is a PVC printed color film with a pattern on one side and a solid color on the other side, with a thickness of 0.20 mm, and the wear-resistant layer 1 has a gram weight of 100 g.

[0113] The manufacturing method of the floor unit comprises the following steps:

[0114] 1) The wear-resistant layer 1, the connecting layer 3, the printed decorative layer 2 and the extruded rigid PVC layer 7 are processed by flat vulcanization hot pressing molding or by using a multi-layer hot laminating machine or an extrusion laminating automatic line for laminating operation, and after the hot processing stage is completed, they are cooled by water cooling to obtain a first semi-finished product; the parameters of hot pressing molding and laminating by the multi-layer hot laminating machine are as follows: hot processing temperature: 185°C, during hot laminating, the pressure applied to the product: 10Mpa, the time used in the hot laminating stage: 3500s; during the cooling stage, the pressure applied to the product: 15Mpa, the time used in the cooling stage: 3000s;

[0115] 2) Tempering the first semi-finished product: the first semi-finished product is transported to a tempering furnace at 160° C., and continuously heated for 420 seconds. The first semi-finished product is then transported out of the tempering furnace, and then cooled by natural environment, water treatment or wind treatment to obtain a second semi-finished product with stable thermal shrinkage performance. The surface temperature of the product is controlled to be 120° C. when it is transported out of the tempering furnace.

[0116] 3) The second semi-finished product is cut into products of required specifications and then slotted to obtain finished floor unit products. The total thickness of the stabilized finished floor unit products is 12 mm, the original warpage is ≤5 mm, and after the product is continuously heated at 80°C for 6 hours, the product shrinkage is ≤0.20%, and the product warpage is ≤2 mm.

[0117] The manufacturing method of the extruded hard PVC layer 7 is as follows: 95 parts of PVC powder, 13 parts of stabilizer, 30 parts of toughening agent, 10 parts of PE wax, 1 part of color powder, and 400 parts of calcium carbonate are put into a hot mixer at a temperature of 130° C. and mixed for 3600 seconds until uniform. The materials after cooling to ≤50° C. are conveyed to a twin-screw extruder and extruded at 230° C. to obtain an extruded PVC layer with a thickness of 10 mm. The mesh number of the calcium carbonate is 1000 mesh.

[0118] Example 13

[0119] A wear-resistant floor / wall panel of PVC resin substrate, composed of multiple floor units, the floor unit is composed of six layers from the front to the back, namely, a wear-resistant layer 1, a connecting layer 3, a printed decorative layer 2, a composite base material layer 6, a two-component adhesive layer 8 and an extruded foamed PVC layer 9, the wear-resistant layer 1 is aluminum oxide wear-resistant paper, the connecting layer 3 is first coated on the wear-resistant layer 1 or the printed decorative layer 2. The printed decorative layer 2 is a PVC printed color film with a pattern on one side and a solid color on the other side, with a thickness of 0.05 mm, the wear-resistant layer 1 has a gram weight of 10 g, and the extruded foamed PVC layer 9 has a thickness of 2 mm.

[0120] The manufacturing method of the floor unit comprises the following steps:

[0121] 1) The wear-resistant layer 1, the printed decorative layer 2 and the composite base material layer 6 are processed by flat plate vulcanization hot pressing molding or by using a multi-layer hot laminating machine or an extrusion laminating automatic line for laminating operation, and after the hot processing stage is completed, they are cooled by water cooling to obtain a first semi-finished product; the parameters of hot pressing molding and laminating by a multi-layer hot laminating machine are as follows: hot processing temperature: 140°C, during hot laminating, the pressure applied to the product: 3Mpa, the time used in the hot laminating stage: 1000s; during the cooling stage, the pressure applied to the product: 3Mpa, the time range used in the cooling stage: 1000s;

[0122] 2) Tempering the first semi-finished product: the first semi-finished product is transported to a tempering furnace at 100° C., and is continuously heated for 60 seconds. The first semi-finished product is then transported out of the tempering furnace, and is cooled by natural environment, water treatment or wind treatment to obtain a second semi-finished product with stable heat shrinkage performance. The surface temperature of the product is controlled to be 70° C. when it is transported out of the tempering furnace.

[0123] 3) Use two-component glue to press the second semi-finished product and the extruded foamed PVC board, and after they are firmly bonded, a third semi-finished product with a two-component adhesive layer 8 and an extruded foamed PVC layer 9 is obtained, and then the third semi-finished product is cut into products of required specifications and then slotted to produce a floor unit finished product. The total thickness of the floor unit finished product after stabilization is 4mm, and the original warping is ≤5mm. After the product is continuously heated at 80°C for 6h, the product shrinkage rate is ≤0.20%, and the product warping is ≤2mm.

[0124] The manufacturing method of the composite base material layer 6 is as follows: 60 parts of PVC powder, 15 parts of plasticizer DOTP, 0.1 parts of heat stabilizer, and 100 parts of calcium carbonate are mixed for 30 seconds, mixed evenly and then kneaded for 40 seconds, and then calendered and extruded at 100°C. The thickness of the sheet is 0.2mm, the length is ≥0.5m, and the width is 0.5m. After cutting into required specifications, the composite base material layer 6 is obtained, and the mesh size of the calcium carbonate is 100 mesh.

[0125] The manufacturing method of the extruded foamed PVC layer 9 is as follows: 70 parts of PVC powder, 1 part of stabilizer, 3 parts of toughening agent, 1 part of PE wax, 1 part of foaming agent, and 100 parts of calcium carbonate are put into a hot mixer at a temperature of 60°C and mixed for 300s until uniform. The materials after cooling to ≤50°C are conveyed to a twin-screw extruder and extruded at 150°C to obtain an extruded PVC layer with a thickness of 1.5 mm. The mesh number of the calcium carbonate is 250 meshes.

[0126] Embodiment 14

[0127] A wear-resistant floor / wall panel of PVC resin substrate, composed of multiple floor units, the floor unit is composed of six layers from the front to the back, namely, a wear-resistant layer 1, a connecting layer 3, a printed decorative layer 2, a composite base material layer 6, a two-component adhesive layer 8 and an extruded foamed PVC layer 9, the wear-resistant layer 1 is aluminum oxide wear-resistant paper, the connecting layer 3 is first coated on the wear-resistant layer 1 or the printed decorative layer 2. The printed decorative layer 2 is a PVC printed color film with a pattern on one side and a solid color on the other side, with a thickness of 0.1 mm, the wear-resistant layer 1 has a gram weight of 60 g, and the extruded foamed PVC layer 9 has a thickness of 6 mm.

[0128] The manufacturing method of the floor unit comprises the following steps:

[0129] 1) The wear-resistant layer 1, the printed decorative layer 2 and the composite base material layer 6 are subjected to a flat plate vulcanization hot press molding or a multi-layer hot laminating machine or an extrusion laminating automatic line for laminating operation. After the hot processing stage is completed, the first semi-finished product is cooled by water cooling; the parameters of hot pressing molding and laminating by the multi-layer hot laminating machine are as follows: hot processing temperature: 162°C, during hot laminating, the pressure applied to the product: 7Mpa, the time used in the hot laminating stage: 2200s; during the cooling stage, the pressure applied to the product: 9Mpa, the time used in the cooling stage: 2000s;

[0130] 2) Tempering the first semi-finished product: the first semi-finished product is transported to a tempering furnace at 130° C., and continuously heated for 280 seconds. The first semi-finished product is then transported out of the tempering furnace, and then cooled by natural environment, water treatment or wind treatment to obtain a second semi-finished product with stable thermal shrinkage performance. The surface temperature of the product is controlled to be 95° C. when it is transported out of the tempering furnace.

[0131] 3) Use two-component glue to press the second semi-finished product and the extruded foamed PVC board, and after they are firmly attached, a third semi-finished product with a two-component adhesive layer 8 and an extruded foamed PVC layer 9 is obtained, and then the third semi-finished product is cut into products of required specifications and then slotted to produce a floor unit finished product. The total thickness of the floor unit finished product after stabilization is 8 mm, and the original warping is ≤5 mm. After the product is continuously heated at 80°C for 6 hours, the product shrinkage rate is ≤0.20%, and the product warping is ≤2 mm.

[0132] The manufacturing method of the composite base material layer 6 is as follows: 72 parts of PVC powder, 27 parts of plasticizer DOTP, 1.5 parts of heat stabilizer, 0.5 parts of rosin, 0.5 parts of toughening agent CPE, 0.5 parts of color powder, and 250 parts of calcium carbonate are mixed for 1500 seconds, mixed evenly and then kneaded for 80 seconds, and then calendered and extruded at 135°C. The thickness of the sheet is 1.5 mm, the length is ≥0.5 m, and the width is 1.2 m. After cutting into required specifications, the composite base material layer 6 is obtained, and the mesh number of the calcium carbonate is 450 mesh.

[0133] The manufacturing method of the extruded foamed PVC layer 9 is as follows: 82 parts of PVC powder, 7 parts of stabilizer, 18 parts of toughening agent, 6 parts of PE wax, 1.5 parts of color powder, 2.5 parts of foaming agent, and 250 parts of calcium carbonate are put into a hot mixer at a temperature of 95° C. and mixed for 2000 seconds until uniform. The materials after being cooled to ≤50° C. are conveyed to a twin-screw extruder and extruded at 190° C. to obtain an extruded PVC layer with a thickness of 6 mm. The mesh number of the calcium carbonate is 650 meshes.

[0134] Embodiment 15

[0135] A wear-resistant floor / wall panel of PVC resin substrate, composed of a plurality of floor units, the floor unit is composed of six layers from the front to the back, namely, a wear-resistant layer 1, a connecting layer 3, a printed decorative layer 2, a composite base material layer 6, a two-component adhesive layer 8 and an extruded foamed PVC layer 9, the wear-resistant layer 1 is aluminum oxide wear-resistant paper, the connecting layer 3 is first coated on the wear-resistant layer 1 or the printed decorative layer 2. The printed decorative layer 2 is a PVC printed color film with a pattern on one side and a solid color on the other side, with a thickness of 0.20 mm, the wear-resistant layer 1 has a gram weight of 100 g, and the extruded foamed PVC layer 9 has a thickness of 10 mm.

[0136] The manufacturing method of the floor unit comprises the following steps:

[0137] 1) The wear-resistant layer 1, the printed decorative layer 2 and the composite base material layer 6 are laminated by flat plate vulcanization hot pressing molding or by using a multi-layer hot laminating machine or an extrusion laminating automatic line. After the hot processing stage is completed, the first semi-finished product is cooled by water cooling; the parameters of hot pressing molding and laminating by the multi-layer hot laminating machine are as follows: hot processing temperature: 185°C, during hot laminating, the pressure applied to the product: 10Mpa, the time used in the hot laminating stage: 3500s; during the cooling stage, the pressure applied to the product: 15Mpa, the time used in the cooling stage: 3000s;

[0138] 2) Tempering the first semi-finished product: the first semi-finished product is transported to a tempering furnace at 160° C., and continuously heated for 420 seconds. The first semi-finished product is then transported out of the tempering furnace, and then cooled by natural environment, water treatment or wind treatment to obtain a second semi-finished product with stable thermal shrinkage performance. The surface temperature of the product is controlled to be 120° C. when it is transported out of the tempering furnace.

[0139] 3) Use two-component glue to press the second semi-finished product and the extruded foamed PVC board, and after they are firmly attached, a third semi-finished product with a two-component adhesive layer 8 and an extruded foamed PVC layer 9 is obtained, and then the third semi-finished product is cut into products of required specifications and then slotted to obtain a floor unit finished product. The total thickness of the floor unit finished product after stabilization is 12 mm, and the original warping is ≤5 mm. After the product is continuously heated at 80°C for 6 hours, the product shrinkage rate is ≤0.20%, and the product warping is ≤2 mm.

[0140] The manufacturing method of the composite base material layer 6 is as follows: 85 parts of PVC powder, 40 parts of plasticizer DOTP, 3 parts of heat stabilizer, 1 part of rosin, 1 part of toughening agent CPE, 1 part of color powder, and 400 parts of calcium carbonate are mixed for 3000 seconds, mixed evenly and then kneaded for 120 seconds, and then calendered and extruded at 170°C. The thickness of the sheet is 3 mm, the length is ≥0.5 m, and the width is 2 m. After cutting into required specifications, the composite base material layer 6 is obtained, and the mesh number of the calcium carbonate is 800 mesh.

[0141] The manufacturing method of the extruded foamed PVC layer 9 is as follows: 95 parts of PVC powder, 13 parts of stabilizer, 30 parts of toughening agent, 10 parts of PE wax, 1 part of color powder, 5 parts of foaming agent, and 400 parts of calcium carbonate are put into a hot mixer at a temperature of 130° C. and mixed for 3600 seconds until uniform. The materials after cooling to ≤50° C. are conveyed to a twin-screw extruder and extruded at 230° C. to obtain an extruded PVC layer with a thickness of 10 mm. The mesh number of the calcium carbonate is 1000 mesh.

[0142] The product surface of the present invention adopts aluminum oxide wear-resistant paper as the wear-resistant layer, has excellent wear resistance, scratch resistance, and thermal aging balance performance, and also has the functions and effects of traditional PVC elastic flooring, such as non-toxicity, odorlessness, environmental protection, durability, anti-slip, waterproof, sound absorption, rich colors, easy construction, etc. The production and processing are convenient, a large amount of storage space is saved, and the thermal balance problem in the actual production process is solved.

Claims

1. A wear-resistant floor / wall panel based on PVC resin, consisting of a plurality of floor units, characterized in that: The floor unit is composed of a wear-resistant layer (1), a printed decorative layer (2) and a bottom layer. A connecting layer (3) is provided between the wear-resistant layer (1) and the printed decorative layer (2). The connecting layer (3) is first coated on the wear-resistant layer (1) or the printed decorative layer (2). The wear-resistant layer (1) is aluminum oxide wear-resistant paper.

2. The wear-resistant floor / wall panel made of PVC resin substrate according to claim 1, characterized in that: An intermediate layer is also provided between the printed decorative layer (2) and the bottom layer.

3. The wear-resistant floor / wall panel of PVC resin substrate according to claim 2, characterized in that: The intermediate layer is one or both of a composite intermediate layer (4) and a glass fiber layer (5).

4. The wear-resistant floor / wall panel of PVC resin substrate according to claim 1, characterized in that: The bottom layer is one of a composite base material layer (6) and an extruded hard PVC layer (7).

5. The wear-resistant floor / wall panel made of PVC resin substrate according to claim 1, characterized in that: The back side of the bottom layer is also provided with a two-component adhesive layer (8) and an extruded foamed PVC layer (9) in sequence.

6. The wear-resistant floor / wall panel made of PVC resin substrate according to any one of claims 1 to 5, characterized in that: The printed decorative layer (2) is a PVC printed color film with a pattern on one side and a solid color on the other side, and has a thickness of 0.05-0.20 mm.

7. The wear-resistant floor / wall panel made of PVC resin substrate according to any one of claims 1 to 5, characterized in that: The floor unit is composed of five layers in total from the front to the back, namely, a wear-resistant layer (1), a connecting layer (3), a printed decorative layer (2), a composite middle layer (4) and a composite base material layer (6).

8. The wear-resistant floor / wall panel made of PVC resin substrate according to any one of claims 1 to 5, characterized in that: The floor unit is composed of seven layers in total from the front to the back, namely, a wear-resistant layer (1), a connecting layer (3), a printed decorative layer (2), a composite middle layer (4), a glass fiber layer (5), a composite middle layer (4) and a composite base material layer (6).

9. The wear-resistant floor / wall panel made of PVC resin substrate according to any one of claims 1 to 5, characterized in that: The floor unit is composed of nine layers in total from the front to the back, namely, a wear-resistant layer (1), a connecting layer (3), a printed decorative layer (2), a composite middle layer (4), a glass fiber layer (5), a composite middle layer (4), a glass fiber layer (5), a composite middle layer (4) and a composite base material layer (6).

10. The wear-resistant floor / wall panel made of PVC resin substrate according to any one of claims 1 to 5, characterized in that: The floor unit is composed of four layers in total from the front to the back, namely, a wear-resistant layer (1), a connecting layer (3), a printed decorative layer (2) and an extruded hard PVC layer (7).

11. The wear-resistant floor / wall panel made of PVC resin substrate according to any one of claims 1 to 5, characterized in that: The floor unit is composed of six layers in total from the front to the back, namely, a wear-resistant layer (1), a connecting layer (3), a printed decorative layer (2), a composite base material layer (6), a two-component adhesive layer (8) and an extruded foamed PVC layer (9).

12. The wear-resistant floor / wall panel made of PVC resin substrate according to any one of claims 1 to 5, characterized in that: The wear-resistant layer (1) has a gram weight range of 10-100 g.

13. The wear-resistant floor / wall panel made of PVC resin substrate according to any one of claims 1 to 5, characterized in that: The glass fibers in the glass fiber layer (5) are mesh glass fibers or glass fiber mats, with a gram weight range of 10-250 g / m 2 .

14. The wear-resistant floor / wall panel made of PVC resin substrate according to any one of claims 1 to 5, characterized in that: The total thickness of the floor unit is 2-12 mm.

15. A method for manufacturing a wear-resistant floor / wall panel made of PVC resin substrate according to any one of claims 1 to 5, characterized in that: The steps include: 1) The wear-resistant layer (1), the printed decorative layer (2), the middle layer and the bottom layer are subjected to a flat plate vulcanization hot press molding or a multi-layer hot laminating machine or an extrusion laminating automatic line for laminating operation, and after the hot processing stage is completed, the first semi-finished product is cooled by water cooling; the parameters of the hot press molding and the laminating of the multi-layer hot laminating machine are as follows: the hot processing temperature range is 140-185° C., the pressure range applied to the product during hot laminating is 3-10 MPa, and the time range used in the hot laminating stage is 1000-3500 seconds; during the cooling stage, the pressure range applied to the product is 3-15 MPa, and the time range used in the cooling stage is 1000-3000 seconds; 2) Tempering the first semi-finished product: conveying the first semi-finished product to a tempering furnace at 100-160° C., subjecting it to continuous heating for 60-420 seconds, and then conveying it out of the tempering furnace to obtain a second semi-finished product with stable heat shrinkage performance after natural environment cooling, water treatment cooling or wind treatment cooling. When conveying it out of the tempering furnace, the surface temperature of the product is controlled to be 70-120° C.; 3) The second semi-finished product is cut into products of required specifications and then slotted to obtain finished floor unit products.

16. The method for manufacturing a wear-resistant floor / wall panel of PVC resin substrate according to claim 15, characterized in that: The step 3) is replaced by the following step: using two-component glue to press the second semi-finished product and the extruded foamed PVC board, and after they are firmly attached, a third semi-finished product with a two-component adhesive layer (8) and an extruded foamed PVC layer (9) is obtained, and then the third semi-finished product is cut into products of required specifications and then slotted to produce a finished floor unit product.

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