An impact-resistant nitrile rubber sheet

By introducing an inner lining mechanism into the nitrile rubber sheet, including an inner reinforcing strip, a filling layer, and an outer frame layer, the problem of easy damage to the nitrile rubber sheet during use is solved, enabling longer continuous operation and greater durability.

CN224490329UActive Publication Date: 2026-07-14NANJING NUMANCO NEW MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING NUMANCO NEW MATERIALS CO LTD
Filing Date
2025-08-19
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing nitrile rubber sheets cannot operate continuously for extended periods, which can easily reduce their lifespan.

Method used

The design employs an internal lining structure, including an internal reinforcing strip, a filler layer, and an outer frame layer. The internal reinforcing strip is composed of carbon fiber and nylon short fibers, the filler layer is an acrylate reinforcing agent, and the outer frame layer is a blend of nitrile rubber and PVC. The synergistic effect of these components enhances the impact resistance and structural stability of the rubber sheet.

Benefits of technology

It significantly improves the impact resistance and structural stability of the rubber sheet, extends the continuous working time, prevents edge cracking or peeling, and enhances overall durability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to nitrile rubber plate technical field especially, it is a kind of nitrile rubber plate of impact resistance, it includes two rubber plate, the nitrile rubber plate of impact resistance further includes inner lining mechanism, the inner lining mechanism includes: a plurality of inner lining reinforcing strip, filling layer and outer frame layer;Outer frame layer is bonded in the inner side of two rubber plate, inner lining reinforcing strip is in two rubber plate middle, filling layer is filled in the inner side of two rubber plate, the inner lining reinforcing strip is carbon fibre and nylon short fibre, in the utility model, by setting inner lining mechanism contains a plurality of inner lining reinforcing strip, filling layer and outer frame layer, outer frame layer sticks two rubber plate and provides edge protection, inner lining reinforcing strip disperses impact force, filling layer absorbs and buffers impact energy, and the overall impact resistance of multilayer structure synergistic effect significantly improves rubber plate and structural stability, solve the problem that existing rubber plate is easily damaged short life, prolong its continuous working time.
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Description

Technical Field

[0001] This utility model relates to the field of nitrile rubber sheet technology, and in particular to an impact-resistant nitrile rubber sheet. Background Technology

[0002] Nitrile rubber sheet is an industrial rubber sheet made from butadiene and acrylonitrile through a low-temperature emulsion polymerization method. This material exhibits excellent oil resistance, swelling resistance, and airtightness, maintaining stable performance within a temperature range of -25℃ to +100℃. Its acrylonitrile content (18%~50%) directly affects its oil resistance grade and low-temperature adaptability. It is mainly used in the manufacture of seals for automotive fuel systems, aerospace hydraulic components, and oil pipelines. Physical properties include tensile strength ≥3.5MPa, hardness 65 Shore A, and elongation at break ≥280%. Standard thickness ranges from 1-80mm, and customized production is supported to meet specific industrial needs.

[0003] Existing nitrile rubber sheets cannot operate continuously for extended periods, which can easily reduce their lifespan. Therefore, this invention proposes an impact-resistant nitrile rubber sheet to address the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing nitrile rubber sheets, which cannot operate continuously for extended periods and easily reduce their lifespan, and to propose an impact-resistant nitrile rubber sheet.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An impact-resistant nitrile rubber sheet includes two rubber sheets, and the impact-resistant nitrile rubber sheet further includes...

[0007] The lining mechanism includes: multiple inner lining reinforcing strips, a filling layer, and an outer frame layer;

[0008] The outer frame layer is bonded to the inside of the two rubber sheets, the inner reinforcing strip is located between the two rubber sheets, and the filling layer is filled to the inside of the two rubber sheets.

[0009] As a preferred embodiment of this utility model, the inner reinforcing strip is made of carbon fiber and nylon short fiber.

[0010] Furthermore, the inner reinforcing strip is made of carbon fiber and nylon short fiber. Carbon fiber provides high-strength support to resist impact deformation, while nylon short fiber enhances toughness and absorbs energy. The combination of the two complements each other, greatly improving the rigidity and toughness balance of the reinforcing strip and enhancing the rubber sheet's ability to resist repeated impacts.

[0011] In a preferred embodiment of this invention, the filler layer is an acrylate reinforcing agent.

[0012] Furthermore, the filler layer uses acrylate reinforcing agent, which has excellent elasticity and energy absorption properties, effectively filling the internal space of the rubber sheet, buffering external impact, reducing stress concentration, protecting the rubber matrix and inner reinforcing strip, and delaying fatigue damage.

[0013] In a preferred embodiment of this utility model, the outer frame layer is made of a mixture of nitrile rubber and PVC.

[0014] Furthermore, the outer frame layer uses a blend of nitrile rubber and PVC, combining the oil and abrasion resistance of nitrile rubber with the rigidity and cost advantages of PVC, providing robust protection for the edges of the rubber sheet, preventing edge cracking or peeling, and improving overall durability.

[0015] In a preferred embodiment of this invention, the rubber sheet is prepared by vulcanization of hydrogenated nitrile butadiene and acrylate.

[0016] Furthermore, the rubber sheet body is made by vulcanizing a mixture of hydrogenated nitrile butadiene and acrylate. Hydrogenated nitrile butadiene provides excellent heat resistance and aging resistance, while acrylate enhances strength and fatigue resistance. The two work together to improve the wear resistance, tear resistance and long-term stability of the rubber sheet body.

[0017] In a preferred embodiment of this invention, the carbon fiber and nylon short fiber are bonded together by mixing with stearic acid.

[0018] Furthermore, carbon fiber and nylon short fiber are bonded together with stearic acid. Stearic acid acts as a binder and lubricant, promoting uniform fiber dispersion and good bonding with the rubber matrix. This ensures a dense inner lining reinforcement structure, effective load transfer, and fully leverages the reinforcing effects of both fibers. Beneficial effects

[0019] 1. The filler layer uses acrylate reinforcing agent, which has excellent elasticity and energy absorption characteristics. It effectively fills the internal space of the rubber sheet, buffers external impact, reduces stress concentration, protects the rubber matrix and inner reinforcing strip, and delays fatigue damage.

[0020] 2. The inner reinforcing strip is made of carbon fiber and nylon short fiber. Carbon fiber provides high strength support to resist impact deformation, while nylon short fiber enhances toughness and absorbs energy. The combination of the two complements each other, greatly improving the rigidity and toughness balance of the reinforcing strip and enhancing the rubber sheet's ability to resist repeated impacts.

[0021] 3. The outer frame layer is made of a mixture of nitrile rubber and PVC, which combines the oil and wear resistance of nitrile rubber with the rigidity and cost advantages of PVC, providing strong protection for the edges of the rubber sheet, preventing edge cracking or peeling, and improving overall durability.

[0022] In this utility model, the inner lining mechanism includes multiple inner reinforcing strips, a filling layer, and an outer frame layer. The outer frame layer bonds the two rubber sheets to provide edge protection, the inner reinforcing strips disperse the impact force, and the filling layer absorbs and buffers the impact energy. The synergistic effect of the multi-layer structure significantly improves the overall impact resistance and structural stability of the rubber sheet, solves the problem of easy damage and short lifespan of existing rubber sheets, and extends their continuous working time. Attached Figure Description

[0023] Figure 1 This is a three-dimensional front view schematic diagram of the structure of an impact-resistant nitrile rubber sheet proposed in this utility model.

[0024] Figure 2 This is a top-view three-dimensional schematic diagram of the structure of an impact-resistant nitrile rubber sheet proposed in this utility model;

[0025] Figure 3 This is a top and rear three-dimensional schematic diagram of the structure of an impact-resistant nitrile rubber sheet proposed in this utility model.

[0026] Figure 4 This is a three-dimensional side view and cross-sectional schematic diagram of the impact-resistant nitrile rubber sheet proposed in this utility model.

[0027] In the diagram: 1. Rubber sheet; 2. Inner reinforcing strip; 3. Filling layer; 4. Outer frame layer. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0029] Reference Figure 1-4 An impact-resistant nitrile rubber sheet includes two rubber sheets 1, and the impact-resistant nitrile rubber sheet further includes...

[0030] The inner lining mechanism includes: multiple inner lining reinforcing strips 2, a filling layer 3, and an outer frame layer 4;

[0031] The outer frame layer 4 is bonded to the inside of the two rubber plates 1, the inner reinforcing strip 2 is located between the two rubber plates 1, and the filling layer 3 is filled to the inside of the two rubber plates 1.

[0032] With the above structure: by setting the inner lining mechanism including multiple inner lining reinforcing strips 2, filling layer 3 and outer frame layer 4, the outer frame layer 4 bonds the two rubber sheets 1 to provide edge protection, the inner lining reinforcing strips 2 disperse the impact force, and the filling layer 3 absorbs and buffers the impact energy. The multi-layer structure works together to significantly improve the overall impact resistance and structural stability of the rubber sheet 1, solve the problem of the existing rubber sheet 1 being easily damaged and having a short lifespan, and extend its continuous working time.

[0033] To reinforce the rubber sheet 1, the inner reinforcing strip 2 is made of carbon fiber and nylon short fiber. The carbon fiber provides high-strength support to resist impact deformation, while the nylon short fiber enhances toughness and absorbs energy. The combination of the two complements each other, greatly improving the rigidity and toughness balance of the reinforcing strip and enhancing the rubber sheet 1's ability to resist repeated impacts.

[0034] To absorb impact, the filler layer 3 is an acrylate reinforcing agent. The filler layer 3 is made of acrylate reinforcing agent, which has excellent elasticity and energy absorption characteristics. It effectively fills the internal space of the rubber sheet 1, buffers external impact force, reduces stress concentration, protects the rubber matrix and the inner reinforcing strip 2, and delays fatigue damage.

[0035] To provide support for the rubber sheet 1, the outer frame layer 4 is made of a mixture of nitrile rubber and PVC. The outer frame layer 4 uses a mixture of nitrile rubber and PVC, which combines the oil and wear resistance of nitrile rubber with the rigidity and cost advantages of PVC. This provides strong protection for the edges of the rubber sheet 1, prevents edge cracking or peeling, and improves overall durability.

[0036] To increase the wear resistance of rubber sheet 1, rubber sheet 1 is made by vulcanizing a mixture of hydrogenated nitrile butadiene and acrylate. The main body of rubber sheet 1 is made by vulcanizing a mixture of hydrogenated nitrile butadiene and acrylate. Hydrogenated nitrile butadiene provides excellent heat resistance and aging resistance, while acrylate enhances strength and fatigue resistance. The two work together to improve the wear resistance, tear resistance and long-term stability of the rubber sheet 1.

[0037] To enhance the effect of the inner lining reinforcement strip 2, carbon fiber and nylon short fibers are bonded together using stearic acid. Stearic acid acts as both an adhesive and a lubricant, promoting uniform fiber dispersion and good bonding with the rubber matrix. This ensures a dense structure and effective load transfer of the inner lining reinforcement strip 2, fully leveraging the reinforcing effect of both fibers.

[0038] The working principle of this utility model is as follows: An impact-resistant nitrile rubber sheet is composed of two rubber sheets 1, multiple inner reinforcing strips 2, a filling layer 3, and an outer frame layer 4. The outer frame layer 4 is bonded to the inner side of the two rubber sheets 1. The inner reinforcing strips 2 are located between the two rubber sheets 1. The filling layer 3 fills the inner side of the two rubber sheets 1. The inner reinforcing strips 2 are made of carbon fiber and nylon short fibers. The carbon fiber provides high-strength support to resist impact deformation, while the nylon short fibers enhance toughness and absorb energy. The combination of these two materials complements each other, greatly improving the stiffness-toughness balance of the reinforcing strips and enhancing the rubber sheet 1's ability to resist repeated impacts. The filling layer 3 is an acrylate reinforcing agent. This material has excellent elasticity and energy absorption characteristics, effectively filling the internal space of the rubber sheet 1, buffering external impact forces, reducing stress concentration, protecting the rubber matrix and the inner reinforcing strips 2, and delaying fatigue damage. The outer frame layer... 4 is made of a mixture of nitrile rubber and PVC. The outer frame layer 4 uses a mixture of nitrile rubber and PVC, combining the oil and wear resistance of nitrile rubber with the rigidity and cost advantages of PVC. It provides strong protection for the edges of the rubber sheet 1, preventing edge cracking or peeling and improving overall durability. The rubber sheet 1 is made by vulcanizing a mixture of hydrogenated nitrile rubber and acrylate. The main body of the rubber sheet 1 is made by vulcanizing a mixture of hydrogenated nitrile rubber and acrylate. Hydrogenated nitrile rubber provides excellent heat resistance and aging resistance, while acrylate enhances strength and fatigue resistance. The two work together to improve the wear resistance, tear resistance and long-term stability of the rubber sheet 1. Carbon fiber and nylon short fiber are bonded together by mixing and bonding with stearic acid. Stearic acid acts as an adhesive and lubricant, promoting uniform fiber dispersion and good bonding with the rubber matrix, ensuring that the inner reinforcing strip 2 has a dense structure and effective load transfer, and fully utilizing the reinforcing effect of the two fibers.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An impact-resistant nitrile rubber sheet, comprising two rubber sheets (1), characterized in that, The impact-resistant nitrile rubber sheet also includes The inner lining mechanism includes: multiple inner lining reinforcing strips (2), a filling layer (3), and an outer frame layer (4). The outer frame layer (4) is bonded to the inside of the two rubber plates (1), the inner reinforcing strip (2) is located between the two rubber plates (1), and the filling layer (3) is filled to the inside of the two rubber plates (1).

2. The impact-resistant nitrile rubber sheet according to claim 1, characterized in that, The inner reinforcing strip (2) is made of carbon fiber and nylon short fiber.

3. The impact-resistant nitrile rubber sheet according to claim 1, characterized in that, The filler layer (3) is an acrylate reinforcing agent.

4. The impact-resistant nitrile rubber sheet according to claim 1, characterized in that, The outer frame layer (4) is made of a mixture of nitrile rubber and PVC.

5. The impact-resistant nitrile rubber sheet according to claim 1, characterized in that, The rubber sheet (1) is obtained by vulcanization of hydrogenated butyronitrile and acrylate.

6. The impact-resistant nitrile rubber sheet according to claim 2, characterized in that, The carbon fiber and nylon short fiber are bonded together by mixing with stearic acid.