Environment-friendly halogen-free sulfur-free rubber table mat for preventing static electricity and preparation method thereof

By introducing a combined structure of heat conductor sheet, support rod and silicone desiccant into the rubber pad, the problems of rubber pad being compressed deformation, dust accumulation, water accumulation and heat accumulation are solved, and the effect of improving compressive resistance, extending service life and heat evacuation is achieved.

CN120269902AActive Publication Date: 2025-07-08JIANGSU JIAFU NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202510456364.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2025-07-08
Estimated Expiration
2045-04-11

AI Technical Summary

Technical Problem

The existing anti-static rubber pads are prone to deform and damaged when under pressure for a long time, the concave and convex structures are prone to accumulate dust, concave holes are prone to accumulate water, and cannot evacuate heat, which affects the service life and the normal operation of electronic products.

Method used

The structure consists of a base layer, rubber layer, heat conduction sheet, ventilation hole, support rod, support heat conduction rod, fitting groove and silicone desiccant. By combining it through glue, carbon black is added to the rubber layer to dissipate static electricity, support rod and thermal conduction rod increase compressive resistance, silicone desiccant absorb moisture, and heat conduction flakes evacuate heat.

Benefits of technology

It improves the compressive resistance of the rubber pad, extends the service life, facilitates cleaning of concave and convex structures, avoids accumulated water corrosion, effectively evacuates heat, and prevents the accumulation of heat from electronic products.

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Abstract

The invention discloses an anti-static environment-friendly halogen-free sulfur-free rubber table mat and a preparation method, and relates to the technical field of rubber mats, the anti-static environment-friendly halogen-free sulfur-free rubber table mat sequentially comprises a base layer, a rubber layer, a notch, a heat conducting sheet, a vent hole, a supporting rod, a supporting heat conducting rod, an embedding groove and a silica gel desiccant from bottom to top, a plurality of supporting rods are glued to the top of the base layer in a gluing mode, the supporting heat conduction rods are glued to the tops of the supporting rods in a gluing mode, a plurality of embedding grooves are formed in the tops of the supporting rods in a penetrating mode, silica gel desiccant is arranged on the outer sides of the supporting rods, and a plurality of embedding grooves are formed in the tops of the supporting heat conduction rods in a penetrating mode. The carbon black is added into the rubber layer, so that the rubber layer can dissipate static electricity, generation of the static electricity is avoided, the supporting rods and the supporting heat conduction rods are arranged, the anti-pressure capacity of the product can be remarkably improved, indentation borne by the product under long-time heavy pressure is small, and therefore damage to the product due to heavy pressure is reduced.
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Description

Technical Field

[0001] The present invention relates to the technical field of rubber pads, and specifically to a green and environment-friendly halogen-free and sulfur-free rubber table mat for anti-static and a preparation method thereof. Background Art

[0002] Anti-static rubber pads are often used to place electronic devices on top of them. The anti-static rubber pads can effectively disperse static electricity and avoid the generation of static electricity. Due to their softness, rubber pads are prone to being damaged due to extrusion deformation when pressed by heavy objects for a long time. In order to prevent electronic products from sliding on the rubber pad, uneven places are usually set on the surface of the rubber pad to provide anti-slip performance.

[0003] The defects of existing rubber pads are as follows: 1. The prior art KR1020140025210A discloses a rubber gasket, which does not have the function of improving the compressive capacity of the rubber pad. It is prone to deformation and damage when the rubber pad is pressed by heavy objects for a long time, affecting its service life. Therefore, a green and environment-friendly halogen-free and sulfur-free rubber table mat for anti-static that can improve the compressive capacity of the rubber pad and extend its service life under pressure is needed to solve this problem.

[0004] 2. The prior art KR1020040029600A discloses a rubber pad. When an uneven structure is set on the rubber pad to increase the anti-slip ability, dust is likely to accumulate in the concave parts of the uneven structure, and it is not easy to clean the dust in the concave parts. Therefore, a green and environment-friendly halogen-free and sulfur-free rubber table mat for anti-static that can provide anti-slip performance and is convenient for cleaning the uneven parts is needed to solve this problem.

[0005] 3. The prior art JP2005257002A discloses a rubber pad. If concave holes are opened on the rubber pad to place support blocks, water is likely to accumulate in the concave holes, and long-term contact between the rubber and water can easily have an adverse effect on its own performance. Therefore, a green and environment-friendly halogen-free and sulfur-free rubber table mat for anti-static that can open grooves and avoid the accumulation of water in the grooves from corroding the rubber pad is needed to solve this problem.

[0006] 4. The prior art CN111909469B discloses a long-lasting anti-static rubber pad, which does not have the function of preventing the accumulation of heat generated by electronic products on top of it. When electronic products work on the rubber pad for a long time, heat is likely to accumulate on the contact surface, which has an adverse effect on both the electronic products and the rubber pad. Therefore, a green and environment-friendly halogen-free and sulfur-free rubber table mat for anti-static that can disperse the heat on the contact surface between the electronic products and the rubber pad is needed to solve this problem. Summary of the Invention

[0007] An object of the present application is to provide a green and environment-friendly halogen-free and sulfur-free rubber table mat for anti-static and a preparation method thereof, which can solve the technical problems raised in the prior art.

[0008] To achieve the above object, the present invention provides the following technical solutions: a green and environmentally friendly halogen-free and sulfur-free rubber table mat for anti-static, the green and environmentally friendly halogen-free and sulfur-free rubber table mat for anti-static comprises a base layer, a rubber layer, notches, heat-conducting sheets, ventilation holes, support rods, support heat-conducting rods, fitting grooves and silica gel desiccants from bottom to top. The rubber layer is glued to the top of the base layer by gluing. A plurality of notches are equidistantly penetrated through the top of the rubber layer. The rubber layer is composed of a mixture of rubber, carbon black and antioxidant. The plurality of heat-conducting sheets are penetrated and glued into the inner groove of the top of the rubber layer by gluing. Ventilation holes are symmetrically penetrated through both sides of the rubber layer. A plurality of support rods are glued to the top of the base layer by gluing. The support heat-conducting rod is glued to the top of the support rod by gluing. A plurality of fitting grooves are penetrated through the top of the support rod. A silica gel desiccant is arranged on the outer side of the support rod, and the silica gel desiccant is located inside the notch. A plurality of fitting grooves are penetrated through the top of the support heat-conducting rod, and the fitting grooves are located below the heat-conducting sheet.

[0009] Preferably, the rubber layer includes 80-100 parts by weight of rubber, 2-3 parts of antioxidant and 5-10 parts of carbon black. The rubber is natural rubber, and the antioxidant is one of 4,4'-dimethyl diphenylamine and N-phenyl-α-naphthylamine.

[0010] Preferably, the base layer material is one of polyethylene, polyvinyl chloride and nylon.

[0011] Preferably, the heat-conducting sheet is made of one of aluminum sheet, copper sheet, iron sheet and heat-conducting silica gel sheet.

[0012] Preferably, the material of the support rod is one of polypropylene, polycarbonate and polyvinyl chloride.

[0013] Preferably, the material of the support heat-conducting rod is one of aluminum sheet, copper sheet and iron sheet.

[0014] Preferably, the particle size of the silica gel desiccant is 4-5 mm.

[0015] Preferably, the aperture of the ventilation hole is 3 mm.

[0016] Preferably, the preparation method of the green and environmentally friendly halogen-free and sulfur-free rubber table mat for anti-static comprises the following steps: S1. Mix 80-100 parts of natural rubber, 2-3 parts of antioxidant and 5-10 parts of carbon black into a stirring device with a heating function, heat to 130°C to 140°C, then stir for 10 minutes, and then pour the mixed liquid into a mold to form a rubber layer with notches and ventilation holes; S2. Integrally form a support heat-conducting rod with a fitting groove by using a die forming method. Place a plastic film on a substrate to form a base layer, and glue the support rods to the top of the base layer at equal intervals by means of hot melt adhesive gluing. Subsequently, glue the support heat-conducting rod to the top of the support rod by means of hot melt adhesive gluing. S3. Glue a rubber layer to the top of the base layer by means of hot melt adhesive gluing, and make the support rod and the support heat-conducting rod located inside the notch of the rubber layer. S4. Subsequently, fill silica gel particles into the notch and form a silica gel desiccant under the support heat-conducting rod.

[0017] Preferably, in the step S1, the following steps are further included: S11. Press a heat-conducting sheet into the top of the mixed liquid through penetration after the mixed liquid enters the die and before the cooling is completed, and then the mixed liquid cools to form a rubber layer.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, carbon black is added to the rubber layer so that the rubber layer can dissipate static electricity and avoid the generation of static electricity. Moreover, the present invention is halogen-free and sulfur-free, which is more environmentally friendly. The setting of the support rod and the support heat-conducting rod can significantly increase the compressive capacity of the product, and the indentation under long-term heavy pressure is small, thereby reducing the damage to the product caused by heavy pressure.

[0019] 2. When the rubber layer is compressed by pressing down with a wiping article such as a towel in the present invention, the rubber layer can be conveniently brought into contact with the top of the support heat-conducting rod, so as to facilitate cleaning the rubber layer and the support heat-conducting rod inside the notch.

[0020] 3. By setting a silica gel desiccant in the present invention, when the bottom of the rubber layer and the inside of the notch are cleaned with a wet towel, the silica gel desiccant can absorb the residual water that seeps into the notch and under the support heat-conducting rod, thereby reducing the erosion of water on the rubber and prolonging the rubber life. And the vent holes provided can enable the water adsorbed in the silica gel desiccant to be released when the environment is dry.

[0021] 4. By placing an electronic product on the rubber layer of the product in the present invention, the heat-conducting sheet receives the heat generated during the operation of the product, and then can transfer the heat to the support heat-conducting rod and the support rod, and then transfer the heat to the silica gel desiccant, which can accelerate the release speed of the water inside the silica gel desiccant. At the same time, the heat-conducting sheet can avoid the accumulation of heat at the bottom of the electronic product through heat conduction and heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a front sectional view of the present invention; Figure 3 This is the flowchart of the preparation method of the present invention.

[0023] In the figure: 1, base layer; 2, rubber layer; 3, notch; 4, heat conduction sheet; 5, ventilation hole; 6, support rod; 7, support heat conduction rod; 8, fitting groove; 9, silica gel desiccant. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Please refer to Figure 1 , Figure 2 and Figure 3, a green and environmentally friendly halogen - free and sulfur - free rubber table mat for anti - static purposes. The green and environmentally friendly halogen - free and sulfur - free rubber table mat for anti - static purposes comprises, from bottom to top, a base layer 1, a rubber layer 2, notches 3, heat - conducting sheets 4, ventilation holes 5, support rods 6, support heat - conducting rods 7, fitting grooves 8 and silica gel desiccants 9. The rubber layer 2 is glued to the top of the base layer 1 by gluing. A plurality of notches 3 are equally spaced and penetrated through the top of the rubber layer 2. The rubber layer 2 is made of a mixture of rubber, carbon black and antioxidant. A plurality of heat - conducting sheets 4 are penetrated and glued inside the top grooves of the rubber layer 2 by gluing. Ventilation holes 5 are symmetrically penetrated through both sides of the rubber layer 2. A plurality of support rods 6 are glued to the top of the base layer 1 by gluing. The support heat - conducting rods 7 are glued to the top of the support rods 6 by gluing. A plurality of fitting grooves 8 are penetrated through the top of the support rods 6. A silica gel desiccant 9 is arranged outside the support rods 6, and the silica gel desiccant 9 is located inside the notches 3. A plurality of fitting grooves 8 are penetrated through the top of the support heat - conducting rods 7, and the fitting grooves 8 are located below the heat - conducting sheets 4.

[0028] The rubber layer 2 includes 80 - 100 parts by weight of rubber, 2 - 3 parts of antioxidant and 5 - 10 parts of carbon black. The rubber is natural rubber, and the antioxidant is one of 4,4'-dimethyl diphenylamine and N - phenyl - α - naphthylamine.

[0029] The material of the base layer 1 is one of polyethylene, polyvinyl chloride and nylon.

[0030] The heat - conducting sheet 4 is made of one of aluminum sheet, copper sheet, iron sheet and heat - conducting silica gel sheet.

[0031] The material of the support rod 6 is one of polypropylene, polycarbonate and polyvinyl chloride.

[0032] The material of the support heat - conducting rod 7 is one of aluminum sheet, copper sheet and iron sheet.

[0033] The particle size of the silica gel desiccant 9 is 4 - 5 mm.

[0034] The aperture of the ventilation hole 5 is 3 mm.

[0035] The preparation method of the green and environmentally friendly halogen - free and sulfur - free rubber table mat for anti - static purposes comprises the following steps: S1. Mix 80 - 100 parts of natural rubber, 2 - 3 parts of antioxidant and 5 - 10 parts of carbon black into a stirring device with a heating function, heat to 130 °C to 140 °C, then stir for 10 minutes, and then pour the mixed liquid into a mold to form a rubber layer 2 with notches 3 and ventilation holes 5; S2. Integrally form the support heat-conducting rod 7 with the fitting groove 8 by using a die molding method. Place the plastic film on the substrate to form the base layer 1, and glue the support rods 6 on the top of the base layer 1 at equal intervals by hot melt adhesive gluing. Subsequently, glue the support heat-conducting rod 7 on the top of the support rods 6 by hot melt adhesive gluing; S3. Glue the rubber layer 2 on the top of the base layer 1 by using hot melt adhesive through gluing, and make the support rods 6 and the support heat-conducting rod 7 located inside the notch 3 of the rubber layer 2; S4. Subsequently, fill the silica gel particles into the notch 3 and form the silica gel desiccant 9 under the support heat-conducting rod 7.

[0036] In S1, the following steps are further included: S11. Press the heat-conducting sheet 4 into and through the top of the mixed liquid after the mixed liquid enters the mold and before the cooling is completed, and then the mixed liquid cools to form the rubber layer 2. Embodiment

[0037] 1. Mix 80 parts of natural rubber, 2 parts of 4,4'-dimethyl diphenylamine and 5 parts of carbon black into the stirring device with heating function, heat to 130°C to 140°C, then stir for 10 minutes. Subsequently, pour the mixed liquid into the mold to form the rubber layer 2 with the notch 3 and the vent hole 5 with a pore diameter of 4 mm. Press the heat-conducting sheet 4 into and through the top of the mixed liquid before the cooling is completed, and then the mixed liquid cools to form the rubber layer 2; 2. Integrally form the aluminum sheet with the fitting groove 8 by using a die molding method to form the support heat-conducting rod 7. Place the polyvinyl chloride film on the substrate to form the base layer 1, and glue the support rods 6 made of polypropylene on the top of the base layer 1 at equal intervals by hot melt adhesive gluing. Subsequently, glue the support heat-conducting rod 7 on the top of the support rods 6 by hot melt adhesive gluing; 3. Glue the rubber layer 2 on the top of the base layer 1 by using hot melt adhesive through gluing, and make the support rods 6 and the support heat-conducting rod 7 located inside the notch 3 of the rubber layer 2; 4. Subsequently, fill the silica gel particles with a particle size of 4 mm into the notch 3 and form the silica gel desiccant 9 under the support heat-conducting rod 7. Embodiment

[0038] 1. Mix 80 parts of natural rubber, 2 parts of 4,4'-dimethyl diphenylamine and 5 parts of carbon black into the stirring device with heating function, heat to 130°C to 140°C, then stir for 10 minutes. Subsequently, pour the mixed liquid into the mold to form the rubber layer 2 with the notch 3 and the vent hole 5 with a pore diameter of 4 mm. Press the heat-conducting sheet 4 into and through the top of the mixed liquid before the cooling is completed, and then the mixed liquid cools to form the rubber layer 2; 3. Glue the rubber layer 2 on the top of the base layer 1 by using hot melt adhesive through gluing. Example

[0039] 1. Mix 80 parts of natural rubber, 2 parts of 4,4'-dimethyl diphenylamine, and 5 parts of carbon black into a stirring device with a heating function, heat it to 130°C to 140°C, then stir for 10 minutes, and then pour the mixed liquid into a mold to form a rubber layer 2 with a notch 3 and a vent hole 5 with a pore diameter of 4 mm. Before the cooling is completed, press a heat-conducting sheet 4 into the top of the mixed liquid passing through it, and then the mixed liquid cools to form the rubber layer 2; 2. Use a mold forming method to integrally form an aluminum sheet with a fitting groove 8 to form a support heat-conducting rod 7. Place a polyvinyl chloride film on a substrate to form a base layer 1, and glue support rods 6 made of polypropylene on the top of the base layer 1 at equal intervals by hot melt adhesive gluing method. Subsequently, glue the support heat-conducting rod 7 on the top of the support rod 6 by hot melt adhesive gluing method; 3. Glue the rubber layer 2 on the top of the base layer 1 by using hot melt adhesive through gluing, and make the support rod 6 and the support heat-conducting rod 7 located inside the notch 3 of the rubber layer 2. Example

[0040] 1. Mix 80 parts of natural rubber, 2 parts of 4,4'-dimethyl diphenylamine, and 5 parts of carbon black into a stirring device with a heating function, heat it to 130°C to 140°C, then stir for 10 minutes, and then pour the mixed liquid into a mold to form a rubber layer 2 with a notch 3. Before the cooling is completed, press a heat-conducting sheet 4 into the top of the mixed liquid passing through it, and then the mixed liquid cools to form the rubber layer 2; 2. Use a mold forming method to integrally form an aluminum sheet with a fitting groove 8 to form a support heat-conducting rod 7. Place a polyvinyl chloride film on a substrate to form a base layer 1, and glue support rods 6 made of polypropylene on the top of the base layer 1 at equal intervals by hot melt adhesive gluing method. Subsequently, glue the support heat-conducting rod 7 on the top of the support rod 6 by hot melt adhesive gluing method; 3. Glue the rubber layer 2 on the top of the base layer 1 by using hot melt adhesive through gluing, and make the support rod 6 and the support heat-conducting rod 7 located inside the notch 3 of the rubber layer 2; 4. Subsequently, fill silica gel particles with a particle size of 4 mm into the notch 3 and at the same time under the support heat-conducting rod 7 to form a silica gel desiccant 9. Example

[0041] 1. Mix 80 parts of natural rubber, 2 parts of 4,4'-dimethyl diphenylamine, and 5 parts of carbon black into a stirring device with a heating function, heat it to 130°C to 140°C, then stir for 10 minutes, and then pour the mixed liquid into a mold to form a rubber layer 2 with a notch 3 and a vent hole 5 with a pore diameter of 4 mm; Second, an aluminum sheet with a fitting groove 8 is integrally formed by a mold forming method to form a support heat conduction rod 7. A polyvinyl chloride film is placed on a substrate to form a base layer 1, and support rods 6 made of polypropylene are glued to the top of the base layer 1 at equal intervals by a hot melt adhesive gluing method. Subsequently, the support heat conduction rod 7 is glued to the top of the support rod 6 by a hot melt adhesive gluing method; Third, a rubber layer 2 is glued to the top of the base layer 1 by using a hot melt adhesive in a gluing manner, and the support rod 6 and the support heat conduction rod 7 are located inside the notch 3 of the rubber layer 2; Fourth, silica gel particles with a particle size of 4 mm are then filled into the notch 3 and located below the support heat conduction rod 7 to form a silica gel desiccant 9.

[0042] Performance test: 1. Compression test: Lay the products of each embodiment flat on a table, then place square iron blocks on top of the products of each embodiment respectively. After waiting for 10 hours, remove the square iron blocks and observe the depth of the indentations on the tops of the products of each embodiment.

[0043] Test data of each embodiment under the same test conditions

[0044] It can be known from the experimental data that by setting the support rod 6 and the support heat conduction rod 7, the compressive capacity of the product can be significantly increased, and the indentation under long-term heavy pressure is small, thus reducing the damage to the product caused by heavy pressure. And because the rubber layer 2 has good softness, when there is dust on the rubber layer 2 and the support heat conduction rod 7, when using a wiping product such as a towel to press down on the rubber layer 2, it is convenient for the towel to contact the top of the support heat conduction rod 7, so as to facilitate cleaning the rubber layer 2 and the support heat conduction rod 7 inside the notch 3. At the same time, because the silica gel desiccant 9 is provided in this product, the residual water in the product can be absorbed when it is cleaned, thereby reducing the erosion of water on the rubber and prolonging the rubber life. And the ventilation holes 5 provided can enable the water adsorbed in the silica gel desiccant 9 to be released when the environment is dry. At the same time, when an electronic product is placed on the rubber layer 2 of this product, the heat conduction sheet 4 receives the heat generated during the operation of the product, and then can transfer the heat to the support heat conduction rod 7 and the support rod 6, and then transfer the heat to the silica gel desiccant 9, and then can accelerate the release speed of the water inside the silica gel desiccant 9. At the same time, the heat conduction sheet 4 can avoid the accumulation of heat at the bottom of the electronic product through heat conduction and heat dissipation.

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention, and any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A green and environmentally friendly halogen-free and sulfur-free rubber table mat for anti-static, characterized in that: The green and environmentally friendly halogen-free and sulfur-free rubber table mat for anti-static purposes comprises, from bottom to top, a base layer (1), a rubber layer (2), notches (3), heat-conducting sheets (4), ventilation holes (5), support rods (6), support heat-conducting rods (7), fitting grooves (8) and silica gel desiccants (9). The rubber layer (2) is glued to the top of the base layer (1) by gluing. A plurality of notches (3) are equidistantly penetrated and opened at the top of the rubber layer (2). The rubber layer (2) is composed of a mixture of rubber, carbon black and an antioxidant. The plurality of heat-conducting sheets (4) are glued through the grooves inside the top of the rubber layer (2) by gluing. Ventilation holes (5) are symmetrically penetrated and opened on both sides of the rubber layer (2). A plurality of support rods (6) are glued to the top of the base layer (1) by gluing. The support heat-conducting rod (7) is glued to the top of the support rod (6) by gluing. A plurality of fitting grooves (8) are penetrated and opened at the top of the support rod (6). A silica gel desiccant (9) is arranged on the outer side of the support rod (6), and the silica gel desiccant (9) is located inside the notch (3). A plurality of fitting grooves (8) are penetrated and opened at the top of the support heat-conducting rod (7), and the fitting groove (8) is located below the heat-conducting sheet (4).

2. The green and environment-friendly halogen-free and sulfur-free rubber table mat for anti-static electricity according to claim 1, characterized in that: In the rubber layer (2), by weight, it includes 80-100 parts of rubber, 2-3 parts of antioxidant and 5-10 parts of carbon black. The rubber is natural rubber, and the antioxidant is one of 4,4'-dimethyl diphenylamine and N-phenyl-α-naphthylamine.

3. The green and environment-friendly halogen-free and sulfur-free rubber table mat for anti-static according to claim 1, characterized in that: The material of the base layer (1) is one of polyethylene, polyvinyl chloride and nylon.

4. The green and environmentally friendly halogen-free and sulfur-free rubber table mat for anti-static according to claim 1, wherein: The material of the heat-conducting sheet (4) is one of aluminum sheet, copper sheet, iron sheet and heat-conducting silica gel sheet.

5. The green and environmentally friendly halogen-free and sulfur-free rubber table mat for anti-static according to claim 1, characterized in that: The material of the support rod (6) is one of polypropylene, polycarbonate and polyvinyl chloride.

6. The green and environmentally friendly halogen-free and sulfur-free rubber table mat for anti-static according to claim 1, characterized in that: The material of the support heat-conducting rod (7) is one of aluminum sheet, copper sheet and iron sheet.

7. The halogen-free and sulfur-free rubber table mat for anti-static and green environmental protection according to claim 1, characterized in that: The particle size of the silica gel desiccant (9) is 4-5 mm.

8. The green and environment-friendly halogen-free and sulfur-free rubber table mat for anti-static according to claim 1, characterized in that: The aperture of the ventilation hole (5) is 3 mm.

9. The preparation method of the green environmental protection halogen-free and sulfur-free rubber table mat for anti-static electricity according to any one of claims 1-8, characterized in that: The preparation method of the green and environmentally friendly halogen-free and sulfur-free rubber table mat for anti-static purposes comprises the following steps: S1. Mix 80-100 parts of natural rubber, 2-3 parts of antioxidant and 5-10 parts of carbon black into a stirring device with a heating function, heat to 130°C to 140°C, then stir for 10 minutes, and then pour the mixed liquid into a mold to form a rubber layer (2) with notches (3) and ventilation holes (5); S2. Integrally form a support heat-conducting rod (7) with a fitting groove (8) by using a mold forming method. Place a plastic film on a substrate to form a base layer (1), and glue the support rods (6) to the top of the base layer (1) at equal intervals by hot melt adhesive gluing, and then glue the support heat-conducting rod (7) to the top of the support rod (6) by hot melt adhesive gluing; S3. Glue the rubber layer (2) to the top of the base layer (1) by using hot melt adhesive, and make the support rods (6) and the support heat-conducting rods (7) located inside the notches (3) of the rubber layer (2); S4. Subsequently, the silica gel particles are filled into the notch (3) and located below the supporting heat conducting rod (7) to form a silica gel desiccant (9).

10. The preparation method of the green and environment-friendly halogen-free and sulfur-free rubber table mat for anti-static electricity according to claim 9, characterized in that: In the step S1, the following steps are further included: S11. After the mixed liquid enters the mold and cools, and before the cooling is completed, the heat conducting sheet (4) is pressed into the top of the mixed liquid penetrating through the mixed liquid, and then the mixed liquid cools to form a rubber layer (2).

Citation Information

Patent Citations

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    CN111909469B

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