A soft core hard impact-resistant PVC tile and a preparation method thereof

Abstract

The application discloses a soft-core hard-impact-resistant PVC tile and a preparation method thereof, and relates to the technical field of building materials. The PVC tile comprises an outer layer, a core layer and an outer layer structure from bottom to top. The outer layer structure comprises a bottom PVC hard layer and a surface PVC hard layer. The core layer structure is a soft core layer. The outer layer structure is composed of the following components in mass parts: 100 parts of polyvinyl chloride, 2-5 parts of a heat stabilizer, 0.3-1 part of a light stabilizer, 0.5-1 part of a slip agent, 1-2 parts of an acrylate, 1-2 parts of titanium dioxide, 6-10 parts of an impact-resistant agent and 5-10 parts of aluminum trioxide. The hard-soft-hard structure is arranged, and the soft core layer is arranged between the bottom PVC hard layer and the surface PVC hard layer, so that a buffer layer is formed when external force is applied, and the impact resistance is improved. The soft core layer is completely wrapped by the upper and lower outer hard PVC layers, the erosion of the external environment to the soft core layer is avoided, and the durability of the tile is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building materials, and in particular to a soft-core hard impact-resistant PVC tile and a preparation method thereof. BACKGROUND

[0002] PVC plastic roof tiles are mainly used for outdoor steel structure roofs. Since they are used for the surface layer of outdoor overhead roofs, they are eroded by the external environment all year round, such as hail, and need to have a certain impact resistance. The soft-core hard impact-resistant PVC tile can be understood as a tile made of PVC material with soft and hard combined characteristics and impact resistance. It is a new type of roofing material. The PVC material in it is made of polyvinyl chloride (PVC) plastic, which has good weather resistance, acid and alkali resistance, and corrosion resistance. Compared with the tiles made by the existing process, the soft-core hard impact-resistant PVC tile adds a soft core layer on the basis of traditional PVC material. The existence of the soft core layer makes the PVC tile have good flexibility and elasticity, can effectively absorb external impact, reduce the damage and fragmentation of the tile, increase its impact resistance, and can resist external impact and pressure.

[0003] Secondly, compared with the traditional roofing material which is heavy, easy to age, crack and has a short service life, the soft-core hard impact-resistant PVC tile treated in a special way is not easy to break or crack when subjected to external impact or heavy impact. Therefore, it can provide more durable roof protection. In addition, the hard PVC surface layer has good waterproof performance, weather resistance, acid and alkali resistance, and corrosion resistance. It can resist ultraviolet rays, acid rain and other external environmental erosion, effectively prevent rainwater penetration, keep the roof dry and clean, avoid water leakage and other problems, thereby prolonging the service life. At the same time, the soft-core hard impact-resistant PVC tile is light in weight and is usually installed in a splicing manner, which to some extent reduces the construction time and cost and also reduces the load on the roof.

[0004] Based on this, the present application provides a soft-core hard impact-resistant PVC tile and a preparation method thereof, which can eliminate the drawbacks of the existing device. SUMMARY

[0005] The present application aims to provide a soft-core hard impact-resistant PVC tile and a preparation method thereof to solve the problems of poor impact resistance, heavy weight, easy breakage and fragmentation of traditional roofing tiles.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] The application discloses a soft-core hard-impact PVC tile, which comprises an outer layer, a core layer and an outer layer structure from bottom to top, wherein the outer layer structure is a bottom PVC hard layer and a surface PVC hard layer respectively, and the core layer structure is a soft core layer; and the outer layer structure is basically composed of the following components in parts by mass: 100 parts of polyvinyl chloride, 2-5 parts of heat stabilizer, 0.3-1 part of light stabilizer, 0.5-1 part of lubricant, 1-2 parts of acrylate, 1-2 parts of titanium dioxide, 6-10 parts of impact agent and 5-10 parts of aluminum trioxide.

[0008] Based on the technical scheme, the application further provides the following optional technical schemes.

[0009] In an optional scheme, the core layer material can be nitrile rubber, chlorinated polyethylene, glass fiber mesh cloth or soft PVC; the soft PVC is basically composed of the following components in parts by mass: 60 parts of polyvinyl chloride, 40 parts of chloropropene resin, 2-3 parts of heat stabilizer, 0.1-0.2 parts of lubricant, 25 parts of diphenyl phthalate, 3 parts of di-zinc adipate, 2 parts of glycerol epoxide and 5 parts of glass fiber and 3 parts of glass microbeads.

[0010] In an optional scheme, the light stabilizer component is composed of benzotriazole, benzophenone, hindered amine and antioxidant; the heat stabilizer component is composed of calcium-zinc heat stabilizer, phenolic antioxidant, chelating agent, preservative, filler and lubricant; and the lubricant is stearic acid and paraffin wax.

[0011] In an optional scheme, the titanium dioxide is treated with silane, and the mesh number is 1800-2500.

[0012] The application further discloses a preparation method of the soft-core hard-impact PVC tile.

[0013] Step one: raw materials are added into a mixing tank, and are fully stirred with a stirring structure; and then the mixed materials are added into corresponding extruders;

[0014] Step two: the molten materials are extruded into three-layer sheet materials through the extruders;

[0015] Step three: the three-layer sheet materials are pressed into the PVC tile with a hard-soft-hard structure through a laminating device.

[0016] The fitting device comprises a bottom PVC material guide roller, a soft layer material guide roller, a surface layer PVC material guide roller, a support frame and a base, the bottom PVC material guide roller, the soft layer material guide roller and the surface layer PVC material guide roller are respectively provided with two, and are all arranged on one side of the end part of the support frame in the vertical direction, the length of the soft layer material guide roller is less than the length of the bottom PVC material guide roller and the surface layer PVC material guide roller, the length of the bottom PVC material guide roller and the surface layer PVC material guide roller is equal, the middle bottom surface of the support frame is provided with the base for reinforcing the structure stability, the bottom PVC material guide roller, the soft layer material guide roller, the surface layer PVC material guide roller and the support frame are provided with the power transmission assembly, the power transmission assembly is provided with the width adjusting mechanism for side edge righting and the guide unit for material flattening, the base is provided with the roller pressing assembly with adjustable spacing, and the side, away from the roller pressing assembly, of the support frame is sequentially provided with a cooling table and a cutting platform.

[0017] In an alternative: the power transmission assembly comprises a power motor, a transmission shaft, a transmission belt, a transmission roller and a conveying belt, the output shaft of the power motor is connected with the transmission shaft, the end of the transmission shaft is sleeved with the transmission belt, the transmission shaft is provided with the transmission roller, and the transmission roller is sleeved with the conveying belt.

[0018] In an alternative: the width adjusting mechanism comprises a support, an electric push rod, an edge righting side plate and a guide rod, the support is fixedly connected to the inner wall on both sides of the support frame, the electric push rod is connected to the support, the output shaft of the electric push rod is fixedly connected with the edge righting side plate, the profiled plates at both ends of the edge righting side plate are penetrated with the guide rods for guiding sliding, and the end of the guide rod is provided with a limiting piece.

[0019] In an alternative: the guide unit comprises a guide roller and a pushing roller, the guide roller and the pushing roller are all rotationally arranged on the support frame, the two guide rollers are respectively located outside the transmission roller at one end, away from the soft layer material guide roller and the surface layer PVC material guide roller, and the pushing roller is located below one of the guide rollers.

[0020] In an alternative: the roller pressing assembly comprises a rotary motor, a rotary shaft, a connecting seat, a driving gear, a driven gear, a lifting arm and a hydraulic cylinder, the rotary motor is fixedly connected to the top end of the base, the output shaft of the rotary motor is connected with the rotary shaft, the rotary shaft penetrates through the connecting seat and is connected with the driving gear, the connecting seat and the driving gear are both provided with two, the two driving gears are respectively engaged with the two driven gears, the two driven gears are both connected with the pressing rollers, the pressing rollers are divided into upper pressing rollers and lower pressing rollers, the lower pressing rollers are rotationally arranged between the support frames, the upper pressing rollers are rotationally arranged between the two lifting arms, the top ends of the two lifting arms are connected through the connecting seat, and the bottom ends of the two lifting arms are provided with the hydraulic cylinders for lifting between the support frames.

[0021] Compared with the prior art, the present application has the following advantages:

[0022] 1、The present application sets up hard-soft-hard structure, sets up core layer between bottom PVC hard layer and surface PVC hard layer, uses soft core layer to form buffer layer when receiving external force, absorbs external force from surface layer, and releases impact load through inorganic material in soft layer, thereby improving impact resistance.

[0023] 2、The present application sets up hard-soft-hard structure, uses upper and lower hard PVC layer to completely wrap soft core layer, provides rigid support for core layer material, avoids erosion of external environment to soft core layer, achieves the purpose of protecting soft core layer, thereby improving durability of tile. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0025] Figure 2 It is a schematic diagram of the structure of the power transmission assembly of the present application.

[0026] Figure 3 It is a schematic diagram of the enlarged structure of part A of the present application.

[0027] Figure 4 It is a schematic diagram of the structure of the roller assembly of the present application.

[0028] Figure 5 It is a schematic diagram of the enlarged structure of part B of the present application.

[0029] Figure 6 It is a schematic diagram of the structure of one side of the present application.

[0030] Figure 7 It is a schematic diagram of the enlarged structure of part C of the present application.

[0031] Figure 8 It is a schematic diagram of the structure of the width and narrowness adjusting mechanism of the present application.

[0032] Figure 9 It is a top view of the present application.

[0033] 100, bottom PVC guide roller; 200, soft layer guide roller; 300, surface PVC guide roller; 400, support frame, 401, base; 500, power motor; 501, transmission shaft; 502, transmission belt; 503, transmission roller; 504, conveying belt; 700, support; 701, electric push rod; 702, edge side plate; 703, guide rod; 600 guide roller; 601, push roller; 800, rotary motor; 801, rotary shaft; 802, connecting seat; 803, driving gear; 804, driven gear; 805, lifting arm; 806, hydraulic cylinder; 900, cooling table; 901, cutting platform. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples.

[0035] In one embodiment, as shown in Figure 1 - Figure 9 A soft core and hard impact-resistant PVC tile, comprising from bottom to top, an outer layer, a core layer, and an outer layer structure, the outer layer structure is respectively a bottom PVC hard layer and a surface PVC hard layer, the core layer structure is a soft core layer, the outer layer structure is basically composed of the following components: polyvinyl chloride 100 parts, heat stabilizer 2-5 parts, light stabilizer 0.3-1 part, slip agent 0.5-1 part, acrylate 1-2 parts, titanium dioxide 1-2 parts, impact modifier 6-10 parts, and aluminum oxide 5-10 parts.

[0036] The core layer material can be nitrile rubber, chlorinated polyethylene, glass fiber mesh cloth, and soft PVC, the soft PVC is basically composed of the following components: polyvinyl chloride 60 parts, chloropropene resin 40 parts, heat stabilizer 2-3 parts, slip agent 0.1-0.2 parts, diphenyl phthalate 25 parts, di-zinc adipate 3 parts, epoxy glyceride 2 parts, glass fiber 5 parts, and glass microbeads 3 parts.

[0037] The light stabilizer component is composed of benzotriazole, benzophenone, hindered amine, and antioxidant, the heat stabilizer component is composed of calcium-zinc heat stabilizer, phenolic antioxidant, chelating agent, preservative, filler, and lubricant, and the slip agent is stearic acid and paraffin wax.

[0038] The titanium dioxide is treated with silane, and the mesh size is 1800-2500 mesh.

[0039] In one embodiment, as shown in Figure 1As shown, the fitting device includes a bottom layer PVC material guide roller 100, a soft layer material guide roller 200, a surface layer PVC material guide roller 300, a support frame 400 and a base 401, the bottom layer PVC material guide roller 100, the soft layer material guide roller 200 and the surface layer PVC material guide roller 300 are provided with two respectively, and are spaced apart along the vertical direction on one side of the end of the support frame 400, the length of the soft layer material guide roller 200 is less than the length of the bottom layer PVC material guide roller 100 and the surface layer PVC material guide roller 300, so as to realize the side wrapping of the soft layer by the bottom layer PVC hard layer and the surface layer PVC hard layer, the length of the bottom layer PVC material guide roller 100 and the surface layer PVC material guide roller 300 is equal, so as to ensure the neatness of the outer edge of the tile, so as to achieve the purpose of convenient laying and installation, the middle bottom surface of the support frame 400 is provided with the base 401 for reinforcing the structure and stabilizing, for supporting the material pressing operation of the roller pressing assembly, the power transmission assembly is arranged between the bottom layer PVC material guide roller 100, the soft layer material guide roller 200, the surface layer PVC material guide roller 300 and the support frame 400, the power transmission assembly is provided with a width adjusting mechanism for side edge righting and a guide unit for flattening the material, the base 401 is provided with an adjustable spacing roller pressing assembly, and the side of the support frame 400 away from the roller pressing assembly is sequentially provided with a cooling table 900 and a cutting platform 901.

[0040] As shown in Figure 3 The power transmission assembly includes a power motor 500, a transmission shaft 501, a transmission belt 502, a transmission roller 503 and a conveying belt 504, the output shaft of the power motor 500 is connected with the transmission shaft 501, the transmission shaft 501 is driven to rotate by the output shaft of the power motor 500, so as to drive the transmission roller 503 to rotate by the linkage of the transmission belt 502, the end of the transmission shaft 501 is sleeved with the transmission belt 502, the transmission shaft 501 is provided with the transmission roller 503, and the transmission roller 503 is sleeved with the conveying belt 504, and the final purpose of conveying the material by the conveying belt 504 is achieved by the operation of the transmission roller 503.

[0041] As shown in Figure 7 And Figure 8 The width adjusting mechanism includes a support 700, an electric push rod 701, an edge supporting side plate 702 and a guide rod 703, the support 700 is fixedly connected to the inner wall on both sides of the support frame 400, the electric push rod 701 is connected to the support 700, the output shaft of the electric push rod 701 is fixedly connected with the edge supporting side plate 702, the edge supporting side plate 702 is limited to the side of the material, so as to avoid the transmission position deviation of the material, the profiled plates at both ends of the edge supporting side plate 702 are provided with guide rods 703 penetrating through for guiding the sliding, the stability of the edge supporting side plate 702 during width adjusting is controlled by the guide rods 703, and the end of the guide rod 703 is provided with a limiting piece.

[0042] As Figure 3 shown, the guide unit includes guide rollers 600 and push rollers 601, which are rotatably arranged on the support frame 400 and used to guide the layered laying of the materials. Two guide rollers 600 are respectively located outside the transmission roller 503 at one end of the soft layer guide roller 200 and the surface layer PVC guide roller 300, and are used to guide the soft core layer and the surface layer PVC material respectively and lay them on the bottom layer PVC material at different times. The push roller 601 is located below one of the guide rollers 600 to achieve the purpose of preliminary pushing and flattening.

[0043] As Figure 4 and Figure 5 shown, the roller pressing assembly includes a rotating motor 800, a rotating shaft 801, a connecting seat 802, a driving gear 803, a driven gear 804, a lifting arm 805, and a hydraulic cylinder 806. The rotating motor 800 is fixedly connected to the top end of the base 401. The output shaft of the rotating motor 800 is connected with the rotating shaft 801. The rotating shaft 801 penetrates through the connecting seat 802 and is connected with the driving gear 803. The rotating motor 800 drives the rotating shaft 801 to rotate, thereby realizing the rotation of the driving gear 803. The connecting seat 802 and the driving gear 803 are both provided with two. Two driving gears 803 are respectively engaged with two driven gears 804. The driving gear 803 drives the driven gear 804 to rotate, thereby realizing the rotation of the pressing roller. Two pressing rollers are connected to the driven gears 804. The pressing rollers are divided into upper and lower pressing rollers, which are used to uniformly press. The lower pressing roller is rotatably arranged between the support frames 400. The upper pressing roller is rotatably arranged between the two lifting arms 805. The top ends of the two lifting arms 805 are connected through the connecting seat 802. The bottom ends of the two lifting arms 805 are provided with the hydraulic cylinder 806 for lifting between the support frame 400, so as to adjust the distance between the upper and lower pressing rollers.

[0044] Working principle: the above embodiment discloses a kind of soft core hard impact-resistant PVC tile, material forming outer layer structure is as follows by mass fraction: polyvinyl chloride 100 parts, heat stabilizer 2-5 parts, light stabilizer 0.3-1 part, slip agent 0.5-1 part, acrylate 1-2 parts, titanium dioxide 1-2 parts, impact modifier 6-10 parts, aluminium trioxide 5-10 parts, combination, material forming core layer soft structure is as follows by mass fraction: polyvinyl chloride 60 parts, chloropropene resin 40 parts, heat stabilizer 2-3 parts, slip agent 0.1-0.2 parts, diphenyl phthalate 25 parts, di-zinc adipate 3 parts, epoxy glyceride 2 parts, glass fiber 5 parts, glass microbead 3 parts, combination, respectively added into different melting tank melt, and fully stirred, then through three extruders common extrusion, the material extruded by three extruders is respectively gathered in mold extrusion, through the bottom PVC material guide roller 100, soft layer material guide roller 200 and surface PVC material guide roller 300 arranged on support frame 400, guide three layers of sheet material to be laminated respectively into corresponding conveying belt 504, according to the setting width of sheet material, adjust and side edge righting are carried out using width adjustment mechanism, so as to avoid material deviation in conveying process, the layered material is guided by guiding unit, so as to avoid stacking or uneven condition of layered material in layering process, finally, the material laid flat and layered is uniformly and closely laminated by roller pressing assembly, and is conveyed and cooled and placed by cooling table 900, then sent into cutting platform 901 for tile blank cutting, finally, tile blank is sent into press mold to make required tile shape, form hard-soft-hard multilayer structure product.

[0045] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of claims.

Claims

1. A process for the production of a soft core, hard impact resistant PVC flooring, characterized in that, It comprises the following steps: Step one: the raw materials are added into the mixing tank, accompanied by stirring structure, and then the mixed materials are added into the corresponding extruder; Step two: the molten material is extruded by the extruder to form a three-layer sheet to be laminated; The laminating device comprises a bottom PVC guide roller (100), a soft layer guide roller (200), a surface PVC guide roller (300), a support frame (400) and a base (401), the bottom PVC guide roller (100), the soft layer guide roller (200) and the surface PVC guide roller (300) are provided with two respectively, and are spaced apart along the vertical direction on one side of the end of the support frame (400), the length of the soft layer guide roller (200) is less than the length of the bottom PVC guide roller (100) and the surface PVC guide roller (300), the length of the bottom PVC guide roller (100) and the surface PVC guide roller (300) is equal, the middle bottom surface of the support frame (400) is provided with a base (401) for reinforcing the structure stability, a power transmission assembly is arranged between the bottom PVC guide roller (100), the soft layer guide roller (200), the surface PVC guide roller (300) and the support frame (400), a width adjusting mechanism for side edge righting and a guide unit for flattening the material are arranged on the power transmission assembly, an adjustable pitch roller pressing assembly is arranged on the base (401), and a cooling table (900) and a cutting platform (901) are sequentially arranged on the side of the support frame (400) away from the roller pressing assembly; The power transmission assembly comprises a power motor (500), a transmission shaft (501), a transmission belt (502), a transmission roller (503) and a conveying belt (504), the output shaft of the power motor (500) is connected with the transmission shaft (501), the end of the transmission shaft (501) is sleeved with the transmission belt (502), the transmission shaft (501) is provided with the transmission roller (503), and the transmission roller (503) is sleeved with the conveying belt (504); The width adjusting mechanism comprises a support (700), an electric push rod (701), an edge supporting side plate (702) and a guide rod (703), the support (700) is fixedly connected to the inner wall on both sides of the support frame (400), the electric push rod (701) is connected to the support (700), the output shaft of the electric push rod (701) is fixedly connected with the edge supporting side plate (702), the profiled plates at both ends of the edge supporting side plate (702) are provided with guide rods (703) for guiding sliding, and the ends of the guide rods (703) are provided with limiters. ​ 2. A process for the preparation of a soft core rigid impact resistant PVC flooring as claimed in claim 1, wherein, The guiding unit comprises guide rollers (600) and a pushing roller (601), the guide rollers (600) and the pushing roller (601) are rotationally arranged on the support frame (400), two guide rollers (600) are respectively located outside the transmission roller (503) at one end of the soft layer material guiding roller (200) and the surface layer PVC material guiding roller (300), and the pushing roller (601) is located below one of the guide rollers (600).

3. A process for the preparation of a soft core hard impact PVC flooring as claimed in claim 2, wherein, The roller pressing assembly comprises a rotary motor (800), a rotary shaft (801), a connecting seat (802), a driving gear (803), a driven gear (804), a lifting arm (805) and a hydraulic cylinder (806), the rotary motor (800) is fixedly connected to the top end of the base (401), the rotary motor (800) is connected with the rotary shaft (801) on the output shaft, the rotary shaft (801) penetrates through the connecting seat (802) and is connected with the driving gear (803), the connecting seat (802) and the driving gear (803) are both provided with two, the two driving gears (803) are respectively engaged with the two driven gears (804), the two driven gears (804) are both connected with the pressure rollers, the pressure rollers are divided into upper pressure rollers and lower pressure rollers, the lower pressure rollers are rotationally arranged between the support frames (400), the upper pressure rollers are rotationally arranged between the two lifting arms (805), the top ends of the two lifting arms (805) are connected through the connecting seat (802), and the bottom ends of the two lifting arms (805) are provided with the hydraulic cylinders (806) for lifting between the support frames (400).

Images