Novel environment-friendly composite decoration board and preparation method thereof

Abstract

The invention discloses a novel environment-friendly composite decoration board and a preparation method thereof, and relates to the technical field of decoration boards. The calcium-zinc stabilizer is adopted to replace a traditional stabilizer containing lead, cadmium and other heavy metals, harm of the heavy metals to the environment and the human body is reduced, meanwhile, a large amount of waste gypsum powder, waste porcelain powder and other industrial waste materials are used, reutilization of resources is achieved, accumulation of the waste materials and environmental pollution are reduced, in addition, the folium artemisiae argyi powder has natural antibacterial and insect-repelling effects, and the environment protection effect is good. The use of chemical agents is reduced, and the environmental protection performance of the board is further improved; graphene has excellent mechanical properties, thermal conductivity and electrical conductivity, and can improve the strength, hardness and heat resistance of the plate; the tourmaline powder can release negative ions and has the effects of purifying air and improving indoor air quality; industrial wastes such as waste gypsum powder and waste porcelain powder are used as raw materials, so that the production cost of the board is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of decoration boards, and in particular to a novel environmentally friendly composite decoration board and a preparation method thereof. Background Art

[0002] Currently, traditional decorative panels have limitations in terms of environmental performance, functionality, and resource utilization. Many panels use large amounts of non-renewable resources and release harmful gases during production, posing a threat to the indoor environment and human health. Furthermore, existing decorative panels offer limited functionality, failing to meet the diverse demands for fireproofing, moisture-proofing, antibacterial properties, and air purification. Furthermore, the accumulation of large amounts of industrial waste, such as waste gypsum powder and waste porcelain powder, not only consumes land resources but also pollutes the environment. Therefore, we propose a novel environmentally friendly composite decorative panel and its preparation method. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems mentioned in the above background technology, and to provide a new environmentally friendly composite decorative board and a preparation method thereof.

[0004] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0005] A new type of environmentally friendly composite decorative board comprises the following raw materials, calculated by weight: 40 parts of PVC resin, 31 parts of calcium powder, 6.01 parts of foaming regulator, 1.13 parts of calcium zinc stabilizer, 0.21 parts of distearyl phthalate, 0.18 parts of oxidized wax, 0.21 parts of PE wax, 2.47 parts of yellow foaming powder / white foaming powder, 0.1 parts of titanium cyanine green, 0.7 parts of mugwort powder, 0.0035 parts of graphene, 0.53 parts of tourmaline powder, 8.8 parts of waste gypsum powder, and 8.8 parts of waste porcelain powder.

[0006] Furthermore, the waste gypsum powder and the waste porcelain powder are crushed to 400-800 meshes.

[0007] Furthermore, the waste gypsum powder and the waste porcelain powder are ground and then subjected to surface modification treatment with graphene and tourmaline powder.

[0008] A method for preparing a novel environmentally friendly composite decorative board comprises the following steps:

[0009] Step 1, raw material pretreatment: PVC, calcium powder, foaming regulator, calcium zinc stabilizer, stearic acid, oxidized wax, PE wax, yellow foaming powder / white foaming powder, mugwort powder, graphene, tourmaline powder, waste gypsum powder, and waste porcelain powder are screened and dried respectively to remove impurities and moisture, so that the moisture content of the raw materials is less than 1%;

[0010] Step 2: High-speed mixing: Add all pre-treated raw materials into a high-speed mixer according to their mass fractions to ensure that the raw materials are fully and evenly mixed;

[0011] Step 3: Plasticizing: The mixed material is conveyed to a twin-screw extruder and plasticized at a temperature of 160-195°C to fully melt and plasticize the material.

[0012] Step 4: Extrusion molding: The plasticized material is extruded through a mold to obtain a new type of decorative board of the desired shape and size;

[0013] Step 5: Cooling and shaping: The extruded sheet is quickly passed through a cooling device for cooling and shaping, so that the sheet is quickly cooled to room temperature to ensure the dimensional accuracy and surface quality of the sheet;

[0014] Step 6: Post-processing: The cooled and shaped boards are subjected to post-processing steps such as cutting, grinding, and surface treatment to obtain finished new decorative boards.

[0015] Furthermore, the mixing temperature during the high-speed mixing is 110-120° C., and the mixing time is 10-12 minutes.

[0016] Furthermore, the twin-screw extruder in the plasticizing process is temperature-controlled in sections, wherein the temperature of zone one is 160-170°C, zone two is 170-180°C, zone three is 175-185°C, zone four is 180-190°C, and zone five is 185-195°C.

[0017] Furthermore, during the plasticizing process, the pressure of the twin-screw extruder is 10-15 MPa, and the screw speed is controlled to be 150-250 r / min.

[0018] Furthermore, during the extrusion molding, the mold temperature is controlled to be 140-170° C., and the extrusion speed is controlled to be 1.0-1.2 m / min.

[0019] Furthermore, the cooling water temperature during the cooling and shaping process is controlled at 10-25°C.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The present invention has good environmental performance: calcium zinc stabilizer is used to replace traditional stabilizers containing heavy metals such as lead and cadmium, which reduces the harm of heavy metals to the environment and human body. At the same time, a large amount of industrial waste materials such as waste gypsum powder and waste porcelain powder are used, which realizes the recycling of resources and reduces the accumulation of waste materials and environmental pollution. In addition, wormwood powder has natural antibacterial and insect repellent effects, reduces the use of chemical agents, and further improves the environmental performance of the board.

[0022] 2. The multifunctionality of the present invention: Graphene has excellent mechanical properties, thermal conductivity, and electrical conductivity, which can improve the strength, hardness, and heat resistance of the board. Tourmaline powder releases negative ions, purifying the air and improving indoor air quality. The antibacterial and insect repellent properties of mugwort powder give the board excellent antibacterial properties. The use of foaming regulators, yellow foaming powder, and white foaming powders provides the board with excellent thermal insulation and sound insulation properties. Therefore, the new decorative board of the present invention integrates multiple functions such as fire protection, moisture resistance, antibacterial properties, air purification, thermal insulation, and sound insulation, meeting people's diverse needs for decorative materials.

[0023] 3. Low production cost: By using industrial waste materials such as waste gypsum powder and waste porcelain powder as raw materials, the production cost of the board is reduced. Furthermore, the preparation method is simple, the process parameters are easy to control, and the production efficiency is high, further reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a workflow diagram of the present invention. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0026] The present invention provides a novel environmentally friendly composite decorative board, which comprises the following raw materials, measured by weight: 40 parts of PVC resin, 31 parts of calcium powder, 6.01 parts of foaming regulator, 1.13 parts of calcium zinc stabilizer, 0.21 parts of distearyl phthalate, 0.18 parts of oxidized wax, 0.21 parts of PE wax, 2.47 parts of yellow foaming powder / white foaming powder, 0.1 part of phthalocyanine green, 0.7 part of mugwort powder, 0.0035 parts of graphene, 0.53 parts of tourmaline powder, 8.8 parts of waste gypsum powder, and 8.8 parts of waste porcelain powder.

[0027] PVC resin is modified by physical blending (mixed with CPE chlorinated polyethylene) and compounded with fillers, which significantly improves the physical properties and processing performance of the board;

[0028] Calcium powder fills tiny defects in the board, improves its compressive and tensile strength, reduces the risk of deformation and fracture, and thus enhances the overall stability of the board. It can also reduce the shrinkage rate of the composite board, improve dimensional stability, make cutting, drilling, bending and other processing operations smoother, and improve production efficiency. In addition, the fine particles of calcium powder can fill surface defects, making the board surface smoother, significantly improving the gloss and enhancing the visual effect. It can also absorb moisture in dyes or coatings, promoting their penetration and adhesion, thereby improving dyeing uniformity and coating adhesion. Similarly, calcium powder as a filler can adjust the viscosity of the composite resin, improve its fluidity and processability, and meet different performance requirements at the same time.

[0029] Foaming regulators significantly enhance the melt strength of composite boards through the entanglement and networking of long molecular chains, preventing melt fracture and surface defects such as "shark skin," thereby improving the inherent quality and durability of the product. They also make the cells smaller and more evenly distributed, reducing foam density and minimizing bubble coalescence, ensuring the density and stability of the board. This characteristic is particularly critical in rigid plastic-wood composites, enhancing sound and heat insulation properties, improving processing performance, reducing raw material consumption, and increasing production efficiency, thereby reducing production costs.

[0030] Calcium zinc stabilizers significantly improve the thermal stability of composite boards by replacing active chlorine atoms in PVC molecules, absorbing hydrogen chloride and destroying polyene structures. They can replace traditional lead salt stabilizers and meet environmental protection requirements. Their lubricity and coupling effects reduce surface precipitation, discoloration and "zinc burning" on PVC profiles, while improving the surface finish of products and avoiding black line problems caused by processing or use. As a non-toxic stabilizer, calcium zinc composite stabilizers can replace harmful substances such as lead and cadmium, meeting environmental and health standards. They can also improve the uniform plasticization effect of composite boards by promoting the melt fluidity of PVC, shortening processing time and improving the consistency of finished products. At the same time, calcium zinc stabilizers are often used in combination with other antioxidants, lubricants, etc. to form a synergistic effect, further optimizing the weather resistance, UV resistance and mechanical properties of the boards.

[0031] Distearyl phthalate can be used as a plasticizer to improve the flexibility and durability of materials;

[0032] Oxidized wax can form a smooth lubricating layer on the surface of the composite board, improve the surface finish of the product, effectively improve the demoulding performance of the composite board, reduce the sticking phenomenon during demoulding, improve production efficiency, and improve the mechanical properties of the composite board, such as strength, hardness and toughness, thereby improving the overall performance of the product, and can also improve the uniformity and quality of the composite board;

[0033] PE wax can reduce the friction between the sheet and processing equipment (such as molds and rollers), improve the efficiency of extrusion, calendering and other processing, prevent adhesion, and improve the surface smoothness of the finished product. It can also improve the sliding properties between resin molecular chains, enhance the flexibility and antistatic properties of the sheet, and by lowering the glass transition temperature (Tg) of the resin, the composite sheet can still maintain good plasticity at low temperatures, improving processing performance. At the same time, it can increase the fluidity of the resin, reduce processing resistance, shorten the production cycle, and improve the demoulding convenience. It is non-toxic and environmentally friendly, meets industrial safety standards, and has good stability at high temperatures and is not easy to volatilize.

[0034] Yellow foaming powder / white foaming powder helps the material form a uniform bubble structure during processing, thereby achieving the effects of lightweighting, thermal insulation, and improving processing performance;

[0035] Phanocyanine green has excellent tinting strength and light and weather resistance. In board manufacturing, phthalocyanine green can be used to formulate the desired green color to meet specific color requirements. It can also improve the weather resistance and heat resistance of the board, making it resistant to the effects of ultraviolet rays and high temperatures during outdoor use, while maintaining color stability. By using phthalocyanine green, the board can present a brighter and longer-lasting green color, thereby enhancing the product's aesthetics and market competitiveness.

[0036] Mugwort powder contains a variety of antibacterial ingredients that can inhibit and kill a variety of bacteria and fungi, such as Staphylococcus aureus, Streptococcus beta-glucosidase, Proteus, etc. This makes the application of mugwort powder in board materials effectively inhibit the growth of bacteria, thereby improving the antibacterial properties of the board materials. It has a special smell that can repel mosquitoes and pests, which to a certain extent protects the board materials from pests.

[0037] Graphene significantly improves the durability and stability of the board by enhancing its mechanical strength, toughness and interfacial bonding; graphene improves conductivity, tourmaline powder releases negative ions, and mugwort powder is antibacterial, effectively improving the functionality of the board.

[0038] Tourmaline powder can absorb odors released by materials such as paint and colloids, keeping indoor air fresh for a long time. Its negative ion properties can also decompose harmful substances such as smoke and oil, improving the environmental performance of the board. By releasing negative ions and regulating humidity, tourmaline powder can inhibit the growth of bacteria on the board surface and extend its service life. Tourmaline powder can be made into ceramsite of different colors and shapes for decorative boards, combining beauty and functionality. Adding tourmaline powder to building materials can improve their thermal insulation effect and reduce energy consumption.

[0039] Waste gypsum powder fills the internal gaps of the board, improving the overall compressive strength and preventing deformation or cracking caused by humidity changes or external forces. Adding gypsum powder can effectively reduce thermal conductivity, enhance the thermal insulation performance of the wall, and reduce noise transmission.

[0040] Waste porcelain powder contains a large amount of inorganic non-metallic materials. After processing, it can replace traditional building materials such as clay and quartz sand, reducing the consumption of natural resources. Its physical and chemical properties (such as high hardness and wear resistance) can improve the performance of composite boards and reduce production costs. Adding it to composite boards as an admixture can enhance the strength, durability and corrosion resistance of the boards.

[0041] The utilization rate of waste gypsum powder and waste porcelain powder reaches more than 20%, which reduces resource waste and is extremely environmentally friendly; waste porcelain powder and calcium powder synergistically enhance the compressive strength of the board, with a compressive strength of ≥15MPa, which can further improve performance; the combination of waste gypsum powder and waste porcelain powder can reduce raw material costs by 1% to 3%.

[0042] In this embodiment, preferably, the waste gypsum powder and waste porcelain powder are crushed to 400-800 meshes, which can meet the processing requirements.

[0043] In this embodiment, preferably, waste gypsum powder and waste porcelain powder are crushed and then surface-modified with graphene and tourmaline powder; through surface modification, the dispersibility and compatibility of waste gypsum powder and waste porcelain powder in the composite material can be improved, the agglomeration phenomenon can be reduced, and their uniform dispersion in the matrix can be improved. Surface modification can significantly improve the mechanical properties, water resistance, crack resistance, etc. of the powder, so that it has better application effects in the fields of building materials, ceramic products, etc. The modified powder can be applied to more fields, such as high-performance building materials, environmentally friendly materials, etc., to promote resource recycling and sustainable development.

[0044] See also Figure 1 The present invention also provides a method for preparing a novel environmentally friendly composite decorative board, comprising the following steps:

[0045] Step 1, raw material pretreatment: PVC, calcium powder, foaming regulator, calcium zinc stabilizer, stearic acid, oxidized wax, PE wax, yellow foaming powder / white foaming powder, mugwort powder, graphene, tourmaline powder, waste gypsum powder, and waste porcelain powder are screened and dried respectively to remove impurities and moisture, so that the moisture content of the raw materials is less than 1%;

[0046] Step 2, high-speed mixing: add all the pretreated raw materials into a high-speed mixer according to the mass fraction, and mix the raw materials thoroughly and evenly. The mixing temperature is 110-120°C and the mixing time is 10-12 minutes;

[0047] Step 3, plasticizing: conveying the mixed material to a twin-screw extruder and plasticizing it at a temperature of 160-195° C. to fully melt and plasticize the material. The twin-screw extruder is temperature-controlled in sections, wherein the first zone is 160-170° C., the second zone is 170-180° C., the third zone is 175-185° C., the fourth zone is 180-190° C., and the fifth zone is 185-195° C. During plasticizing, the pressure of the twin-screw extruder is 10-15 MPa, and the screw speed is controlled at 150-250 r / min;

[0048] Step 4, extrusion molding: the plasticized material is extruded through a mold to obtain a new decorative plate of the desired shape and size. The mold temperature is controlled at 140-170°C and the extrusion speed is controlled at 1.0-1.2 m / min.

[0049] Step 5: Cooling and shaping: The extruded sheet is quickly passed through a cooling device for cooling and shaping, so that the sheet is quickly cooled to room temperature to ensure the dimensional accuracy and surface quality of the sheet;

[0050] Step 6, post-processing: the cooled and shaped boards are subjected to post-processing processes such as cutting, grinding, and surface treatment to obtain finished new decorative boards, and the cooling water temperature is controlled at 10-25°C.

[0051] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A new type of environmentally friendly composite decorative board, characterized in that: Calculated by weight, the raw materials include: 40 parts of PVC resin, 31 parts of calcium powder, 6.01 parts of foaming regulator, 1.13 parts of calcium zinc stabilizer, 0.21 parts of distearyl phthalate, 0.18 parts of oxidized wax, 0.21 parts of PE wax, 2.47 parts of yellow foaming powder / white foaming powder, 0.1 parts of titanium cyanine green, 0.7 parts of mugwort powder, 0.0035 parts of graphene, 0.53 parts of tourmaline powder, 8.8 parts of waste gypsum powder, and 8.8 parts of waste porcelain powder.

2. The novel environmentally friendly composite decorative board according to claim 1, characterized in that: The waste gypsum powder and the waste porcelain powder are crushed to 400-800 meshes.

3. The novel environmentally friendly composite decorative board according to claim 1, characterized in that: The waste gypsum powder and the waste porcelain powder are crushed and then subjected to surface modification treatment with graphene and tourmaline powder.

4. A method for preparing the novel environmentally friendly composite decorative board according to any one of claims 1 to 3, characterized in that: The steps include: Step 1, raw material pretreatment: PVC, calcium powder, foaming regulator, calcium zinc stabilizer, stearic acid, oxidized wax, PE wax, yellow foaming powder / white foaming powder, mugwort powder, graphene, tourmaline powder, waste gypsum powder, and waste porcelain powder are screened and dried respectively to remove impurities and moisture, so that the moisture content of the raw materials is less than 1%; Step 2: High-speed mixing: Add all pre-treated raw materials into a high-speed mixer according to their mass fractions to ensure that the raw materials are fully and evenly mixed; Step 3: Plasticizing: The mixed material is conveyed to a twin-screw extruder and plasticized at a temperature of 160-195°C to fully melt and plasticize the material. Step 4: Extrusion molding: The plasticized material is extruded through a mold to obtain a new type of decorative board of the desired shape and size; Step 5: Cooling and shaping: The extruded sheet is quickly passed through a cooling device for cooling and shaping, so that the sheet is quickly cooled to room temperature to ensure the dimensional accuracy and surface quality of the sheet; Step 6: Post-processing: The cooled and shaped boards are subjected to post-processing steps such as cutting, grinding, and surface treatment to obtain finished new decorative boards.

5. The preparation method according to claim 4, characterized in that: The mixing temperature during the high-speed mixing is 110-120° C., and the mixing time is 10-12 minutes.

6. The preparation method according to claim 4, characterized in that: The temperature of the twin-screw extruder in plasticizing is controlled in sections, wherein the temperature of zone one is 160-170°C, zone two is 170-180°C, zone three is 175-185°C, zone four is 180-190°C, and zone five is 185-195°C.

7. The preparation method according to claim 4, characterized in that: The pressure of the twin-screw extruder during the plasticizing process is 10-15 MPa, and the screw speed is controlled to be 150-250 r / min.

8. The preparation method according to claim 4, characterized in that: During the extrusion molding, the mold temperature is controlled at 140-170° C., and the extrusion speed is controlled at 1.0-1.2 m / min.

9. The preparation method according to claim 4, characterized in that: The cooling water temperature during the cooling and shaping process is controlled to be 10-25°C.

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