Flame-retardant anti-static plastic plate

Abstract

The utility model relates to the technical field of flame-retardant anti-static plastic plates, and discloses a flame-retardant anti-static plastic plate which comprises a plastic shell, the front end of the plastic shell is fixedly connected with a reinforcing plate, the right end of the plastic shell is provided with a wedging groove, and the front side of the right end of the plastic shell is rotationally connected with a six-edge block. The rear end of the hexagonal block is connected with an extension plate through a fixing set, the left end of the plastic shell is fixedly connected with a butt joint plate, a plurality of fixing hole grooves are formed in the left end of the butt joint plate, and a plurality of carbon fiber grid frames are fixedly connected to the front end of the inner wall of the plastic shell. According to the utility model, the stable connection between the butt joint plate and the wedging groove is realized, the assembly process is simplified, the connection strength and reliability are improved, the efficient assembly of the plastic housing is facilitated, the mechanical stability is enhanced by the carbon fiber, and the flame retardant property is improved by the flame retardant; the glass fiber is light and impact-resistant, the conductive additive is antistatic, the graphite particles improve conductivity and flame retardance, and the comprehensive performance is excellent.

Description

Technical Field

[0001] This utility model relates to the technical field of flame-retardant and antistatic plastic sheets, and in particular to a flame-retardant and antistatic plastic sheet. Background Technology

[0002] Flame-retardant and antistatic plastic sheets are composite materials with both flame-retardant and antistatic properties, a combination that makes them widely used in various fields. Their flame-retardant properties make them suitable for fire-resistant buildings and industrial equipment protection; their antistatic properties make them suitable for high-voltage environments or electronic equipment protection. Through scientific formulation and technical processing, this material significantly improves safety performance and anti-interference capabilities without losing the original advantages of plastics, making it an indispensable material in modern engineering.

[0003] Existing flame-retardant and antistatic plastic sheets present numerous inconveniences during assembly, primarily due to their complex material design, which hinders quick and convenient connection. This inconvenience not only increases production costs but may also prolong research and development cycles, impacting the product's market competitiveness. Furthermore, the complex assembly process increases potential safety risks and operating costs, further restricting its widespread application in related fields.

[0004] In response to this technical problem, this application proposes a flame-retardant and antistatic plastic sheet. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flame-retardant and anti-static plastic plate that achieves a stable connection between the mating plate and the fitting groove. This design simplifies the assembly process, improves connection strength and reliability, facilitates efficient assembly of the plastic shell, and features carbon fiber reinforcement for mechanical stability, flame retardant to enhance flame retardant performance, lightweight and impact-resistant glass fiber, conductive additives for anti-static properties, and graphite particles to improve electrical conductivity and flame retardancy, resulting in superior overall performance.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A flame-retardant and anti-static plastic sheet includes a plastic shell, a reinforcing plate fixedly connected to the front end of the plastic shell, a fitting groove opened at the right end of the plastic shell, a hexagonal block rotatably connected to the front side of the right end of the plastic shell, an outer expansion plate connected to the rear end of the hexagonal block through a fixing assembly, a butt plate fixedly connected to the left end of the plastic shell, a plurality of fixing holes and slots opened at the left end of the butt plate, and a plurality of carbon fiber mesh frames fixedly connected to the front end of the inner wall of the plastic shell.

[0008] Furthermore, the fixing assembly includes a screw fixedly connected to the rear end of the hexagonal block, and a movable block is threadedly connected to the outer wall of the screw.

[0009] Furthermore, the upper and lower ends of the moving block are rotatably connected to traction plates, and the opposite ends of the traction plates are rotatably connected to the opposite ends of the outer plate.

[0010] Furthermore, a fixed tube is rotatably connected to one end of the outer plate opposite to the plate, and the outer wall of the fixed tube is fixedly connected to the inner wall of the fitting groove, and the outer wall of the fixed tube fits into the inner wall of the fixing hole groove.

[0011] Furthermore, the inner walls of the carbon fiber mesh frame are filled with conductive additives, and a glass fiber polyester resin layer is provided on the inner side of the carbon fiber mesh frame.

[0012] Furthermore, a corrugated fiber polyester frame is provided inside the glass fiber polyester resin layer, the inner wall of the corrugated fiber polyester frame is filled with flame retardant, and a polyimide layer is provided inside the corrugated fiber polyester frame.

[0013] Furthermore, a polyester composite hexagonal tube frame is provided inside the polyimide layer, and an anthracite black graphite particle layer is provided inside the polyester composite hexagonal tube frame.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, when the plastic shells are joined, the joining plate is embedded into the mating groove, and the fixing hole groove is fitted into the fixing tube. An Allen wrench rotates the hexagonal block, driving the screw to move the moving block within the fixing tube. The traction plate pushes the outer opening plate open, firmly pressing the inner side of the fixing hole groove, thus achieving a stable connection between the joining plate and the mating groove. This design simplifies the assembly process, improves connection strength and reliability, and facilitates efficient assembly of the plastic shells.

[0016] 2. In this utility model, the carbon fiber mesh frame enhances mechanical stability, and the flame retardant improves local flame retardant performance. The glass fiber polyester resin layer is lightweight and impact-resistant, and conductive additives improve antistatic properties. The corrugated fiber polyester frame is high-strength and impact-resistant, and the flame retardant enhances overall flame retardant performance. The polyimide layer is heat-resistant and corrosion-resistant, with excellent conductivity and flame retardant properties. The polyester composite hexagonal tube frame is lightweight and impact-resistant, with good processing stability. The anthracite black graphite particle layer improves electrical conductivity and flame retardant properties, ensuring superior overall material performance. Attached Figure Description

[0017] Figure 1 This is a perspective view of a flame-retardant and anti-static plastic sheet proposed in this utility model.

[0018] Figure 2 A half-sectional view of the plastic shell of a flame-retardant and anti-static plastic sheet proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the butt plate structure of a flame-retardant and anti-static plastic sheet proposed in this utility model.

[0020] Figure 4 This is a half-sectional view of the outer sheet of a flame-retardant and anti-static plastic sheet proposed in this utility model.

[0021] Figure 5 A cross-sectional view of the anthracite black graphite particle layer of a flame-retardant and anti-static plastic sheet proposed in this utility model.

[0022] Legend:

[0023] 1. Plastic outer shell; 2. Reinforcing plate; 3. Fitting groove; 4. Butt joint plate; 5. Fixing hole groove; 6. Hexagonal block; 7. Screw; 8. Fixing tube; 9. Outer plate; 10. Moving block; 11. Traction plate; 12. Carbon fiber mesh frame; 13. Glass fiber polyester resin layer; 14. Corrugated fiber polyester frame; 15. Polyimide layer; 16. Polyester composite hexagonal tube frame; 17. Anthracite black graphite particle layer. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1-3 This utility model provides an embodiment of a flame-retardant and anti-static plastic sheet, comprising a plastic shell 1, a reinforcing plate 2 fixedly connected to the front end of the plastic shell 1, a fitting groove 3 opened at the right end of the plastic shell 1, a hexagonal block 6 rotatably connected to the front side of the right end of the plastic shell 1, an outer expansion plate 9 fixedly connected to the rear end of the hexagonal block 6, and a mating plate 4 fixedly connected to the left end of the plastic shell 1, the left end of the mating plate 4 having a plurality of fixing holes 5, as shown in the figure. Figure 4 The fixing assembly includes a screw 7 fixedly connected to the rear end of the hexagonal block 6. A movable block 10 is threadedly connected to the outer wall of the screw 7. A traction plate 11 is rotatably connected to both the upper and lower ends of the movable block 10. The opposite ends of the traction plates 11 are rotatably connected to the opposite ends of the outer expansion plate 9. A fixing tube 8 is rotatably connected to the opposite end of the outer expansion plate 9. The outer wall of the fixing tube 8 is fixedly connected to the inner wall of the fitting groove 3. The outer wall of the fixing tube 8 fits with the inner wall of the fixing hole groove 5.

[0026] Specifically: When assembling a plastic shell 1 made of flame-retardant and antistatic modified polycarbonate, the operator needs to precisely embed the mating plate 4 with carbon fiber reinforcement into the wedge-shaped fitting groove 3 of the other shell. At this time, the fixing hole groove 5 modified with phosphorus flame retardant on the side wall of the fitting groove 3 needs to be accurately fitted onto the outside of the fixing tube 8 with antistatic coating. A zinc oxide modified hexagonal wrench with a surface resistance value <1×1000000Ω drives the hexagonal block 6 to rotate clockwise, causing the hexagonal block 6 to drive the nickel-plated screw 7 to produce axial displacement. This action causes the moving block 10 made of conductive nylon to move smoothly in the guide groove of the fixing tube 8. Through mechanical linkage, the traction plate 11 expands outward with a torque of 0.5-0.8 N·m, causing the three-lobed outer expansion plate 9 containing aluminum hydroxide flame retardant to produce radial deformation. The anti-slip texture on its surface forms an interference fit with the inner wall of the fixing hole groove 5. In this process, the flame-retardant system and the conductive carbon black network work together to ensure that the mechanical locking strength is greater than 800N and that the components have continuous antistatic capabilities and self-extinguishing characteristics in flammable and explosive environments, ultimately achieving efficient and reliable assembly of the plastic shell 1.

[0027] Reference Figure 5 Several carbon fiber mesh frames 12 are fixedly connected to the front end of the inner wall of the plastic shell 1. The inner wall of each carbon fiber mesh frame 12 is filled with conductive additives. A glass fiber polyester resin layer 13 is provided inside the carbon fiber mesh frame 12. A corrugated fiber polyester frame 14 is provided inside the glass fiber polyester resin layer 13. The inner wall of the corrugated fiber polyester frame 14 is filled with flame retardant. A polyimide layer 15 is provided inside the corrugated fiber polyester frame 14. A polyester composite hexagonal tube frame 16 is provided inside the polyimide layer 15. An anthracite black graphite particle layer 17 is provided inside the polyester composite hexagonal tube frame 16.

[0028] Specifically: The carbon fiber mesh frame 12 is woven using a 3K plain weave process, and its surface is impregnated with epoxy resin containing bromine-phosphorus synergistic flame retardant. Its 0.5mm × 0.5mm mesh structure maintains a lightweight characteristic of 1.25g / cm³ while increasing the flexural modulus to 85GPa, forming a continuous conductive network with a surface resistance of <1000Ω. The glass fiber polyester resin layer 13, laminated with this layer, is reinforced with 30% chopped E-glass fibers, and incorporates 3% carbon nanotubes and 9% aluminum hydroxide flame retardant, achieving a tensile strength of 285MPa, a flame retardant rating of UL94 V-0, and a surface voltage decay of <0.1 seconds. The corrugated fiber polyester frame 14 is a continuous fiber preform with ±45° staggered layers, incorporating 12% microencapsulated red phosphorus flame retardant within a 1.2mm wall thickness. After hot pressing, its impact toughness reaches 65kJ / m², its vertical combustion self-extinguishing time is <3 seconds, and it establishes a three-dimensional conductive path through 0.8% silicon carbide microparticles. The polyimide layer 15 employs a nano-alumina / graphene composite filler system, maintaining a surface resistivity of 10,000-1,000,000 Ω at 260℃, a limiting oxygen index of 42%, and an AQ1 level smoke toxicity rating upon pyrolysis at 800℃. The hexagonal honeycomb polyester composite hexagonal tube frame 16 utilizes an in-mold foaming process, with 5% halogen-free intumescent flame retardant laminated at a wall thickness of 0.3 mm, achieving a compressive strength of 18 MPa at an areal density of 1.8 kg / m², and achieving isotropic conductivity with the help of 0.5% nickel-plated carbon fiber. The innermost anthracite black graphite particle layer 17 is densely filled using 3D vibration, forming an interpenetrating network with 9% coated APP flame retardant, achieving a synergistic protective effect of a volume resistivity of 0.1-10 Ω·cm and a linear burning rate of 1.5 mm / min within a 2.0 mm thickness. A phosphorus-containing flame-retardant conductive film is used between the layers to achieve a metallurgical bond with an interfacial resistance of <0.1 Ω.

[0029] Working principle: When plastic shells 1 are joined, the joining plate 4 is aligned with the fitting groove 3 of another plastic shell 1, allowing the fixing hole groove 5 at the fitting groove 3 to fit over the outside of the fixing tube 8. Then, an Allen wrench rotates the hexagonal block 6, causing the hexagonal block 6 to drive the screw 7 and the moving block 10 to move within the fixing tube 8. This causes the traction plate 11 to press outwards, opening the outer plate 9, which then presses against the inside of the fixing hole groove 5 to fix it, thus allowing the joining plate 4 to align with the fitting groove 3. This facilitates the assembly of the plastic shells 1. The carbon fiber mesh frame 12, with its high strength and durability, ensures overall mechanical stability. Simultaneously, the addition of flame retardants effectively improves localized flame retardant performance. The glass fiber polyester resin layer 13 possesses high mechanical strength, is lightweight, and impact-resistant. Furthermore, the addition of conductive additives enhances its antistatic properties. The corrugated fiber polyester frame 14, with its high strength and impact resistance, ensures structural stability. Meanwhile, the addition of flame retardants can effectively improve the overall flame retardant performance. The polyimide layer 15 has high strength, corrosion resistance, heat resistance, good electrical conductivity and flame retardant performance. The polyester composite hexagonal tube frame 16 has lightweight, impact resistance, good processability and stability. The anthracite black graphite particle layer 17 improves electrical conductivity and flame retardant performance.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flame-retardant and antistatic plastic sheet, comprising a plastic outer shell (1), characterized in that: The front end of the plastic shell (1) is fixedly connected to a reinforcing plate (2). The right end of the plastic shell (1) is provided with a fitting groove (3). The front side of the right end of the plastic shell (1) is rotatably connected to a hexagonal block (6). The rear end of the hexagonal block (6) is connected to an outer expansion plate (9) through a fixing group. The left end of the plastic shell (1) is fixedly connected to a docking plate (4). The left end of the docking plate (4) is provided with several fixing holes (5). The front end of the inner wall of the plastic shell (1) is fixedly connected to several carbon fiber mesh frames (12).

2. The flame-retardant and antistatic plastic sheet according to claim 1, characterized in that: The fixing assembly includes a screw (7) fixedly connected to the rear end of the hexagonal block (6), and a movable block (10) is threadedly connected to the outer wall of the screw (7).

3. The flame-retardant and antistatic plastic sheet according to claim 2, characterized in that: The moving block (10) is rotatably connected to traction plates (11) at both ends. The opposite ends of the traction plates (11) are rotatably connected to the opposite ends of the outer plate (9).

4. The flame-retardant and antistatic plastic sheet according to claim 1, characterized in that: The outer end of the outer plate (9) is rotatably connected to a fixed tube (8), the outer wall of the fixed tube (8) is fixedly connected to the inner wall of the fitting groove (3), and the outer wall of the fixed tube (8) fits into the inner wall of the fixed hole groove (5).

5. The flame-retardant and antistatic plastic sheet according to claim 1, characterized in that: The inner wall of the carbon fiber mesh frame (12) is filled with conductive additives, and a glass fiber polyester resin layer (13) is provided on the inner side of the carbon fiber mesh frame (12).

6. The flame-retardant and antistatic plastic sheet according to claim 5, characterized in that: The glass fiber polyester resin layer (13) is provided with a corrugated fiber polyester frame (14) on the inner side, the inner wall of the corrugated fiber polyester frame (14) is filled with flame retardant, and the corrugated fiber polyester frame (14) is provided with a polyimide layer (15) on the inner side.

7. The flame-retardant and antistatic plastic sheet according to claim 6, characterized in that: The inner side of the polyimide layer (15) is provided with a polyester composite hexagonal tube frame (16), and the inner side of the polyester composite hexagonal tube frame (16) is provided with an anthracite black graphite particle layer (17).

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