Anti-aging butyl inner tube

Abstract

The utility model discloses an anti-aging butyl inner tube, and relates to the technical field of tire inner tubes, according to the anti-aging butyl inner tube, the first anti-aging layer is made of butadiene styrene rubber and has good wear resistance and aging resistance, and the second anti-aging layer is made of ethylene propylene copolymerization rubber and has good wear resistance and aging resistance. The butyl inner tube is very excellent in heat resistance, aging resistance, ozone resistance and stability, the overall aging resistance of the butyl inner tube is conveniently improved, reduction of the comprehensive performance of the butyl inner tube due to aging is slowed down, the service life of the butyl inner tube is prolonged, and the corrosion-resistant layer is made of chloroprene rubber, so that the butyl inner tube is good in physical and mechanical performance, resistant to oil, heat and acid and alkali and good in corrosion resistance. The high-temperature-resistant layer is made of hydrogenated nitrile rubber buna, so that the high-temperature-resistant butyl rubber inner tube has the characteristics of better wear resistance, excellent corrosion resistance, excellent tensile strength, excellent tear resistance and excellent compressibility, and the corrosion resistance and the heat resistance of the butyl rubber inner tube are favorably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tire inner tubes, in particular to an anti-aging butyl inner tube. Background Art

[0002] Inner tube refers to a circular elastic tube with a tire valve used to maintain the internal pressure of the tire. The valve is used to inflate and keep the air at a certain pressure in the inner tube. The inner tube should have good air tightness, heat resistance, elasticity, aging resistance and small permanent deformation. It is generally made of butyl rubber. Butyl inner tube has good self-closing performance and high air tightness.

[0003] For example, publication number CN107746515A discloses a wear-resistant and flame-retardant butyl inner tube, which is prepared by blending butyl rubber and EPDM rubber, and a dispersant is used to make the components in the mixed rubber dispersed more evenly; a lubricant is used to improve the processing performance of the rubber; a flame retardant is added to increase the flame retardant performance of the butyl inner tube without changing the inherent excellent performance of the butyl inner tube; and carbon nanotubes are added to not only improve the wear resistance of the butyl inner tube, but also give the butyl inner tube good thermal and electrical conductivity. The butyl inner tube prepared by the present invention not only has excellent mechanical properties, wear resistance, and flame retardancy, but also has significantly improved air tightness.

[0004] Existing butyl inner tubes usually focus on improving wear resistance and puncture resistance, but the butyl inner tube itself is an item for long-term use, and its wear resistance and puncture resistance will decrease as the material ages, which is not conducive to extending the service life of the butyl inner tube. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an anti-aging butyl inner tube to solve the problem mentioned in the above background technology that the existing butyl inner tube usually focuses on improving the wear resistance and puncture resistance, but the butyl inner tube itself is an item for long-term use, and its wear resistance and puncture resistance will decrease with the aging of the material, which is not conducive to extending the service life of the butyl inner tube.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: an anti-aging butyl inner tube, comprising an inner tube base layer, the outer surface of the inner tube base layer is fixedly connected with an anti-aging layer one, the outer surface of the anti-aging layer one is fixedly connected with an anti-aging layer two, the outer surface of the anti-aging layer two is fixedly connected with a corrosion-resistant layer, the outer surface of the corrosion-resistant layer is fixedly connected with a high-temperature resistant layer, the outer surface of the high-temperature resistant layer is fixedly connected with a shock-absorbing layer, the outer surface of the shock-absorbing layer is fixedly connected with a puncture-proof layer, and the outer surface of the puncture-proof layer is fixedly connected with a wear-resistant layer.

[0007] Preferably, an inflation nozzle is fixedly connected to the inner tube base layer, and an inflation nozzle cap is provided on the inflation nozzle.

[0008] Preferably, the air valve cap is threadedly connected to the inflation air nozzle, and the inner tube base layer is made of butyl rubber.

[0009] Preferably, the first anti-aging layer is made of styrene-butadiene rubber, and the second anti-aging layer is made of ethylene-propylene copolymer rubber.

[0010] Preferably, the corrosion-resistant layer is made of chloroprene rubber, and the high-temperature-resistant layer is made of hydrogenated nitrile butadiene rubber.

[0011] Preferably, the shock-absorbing layer is made of nitrile rubber, and the wear-resistant layer is made of epoxy resin coating. Beneficial Effects

[0012] The utility model provides an anti-aging butyl inner tube. Compared with the prior art, it has the following beneficial effects:

[0013] 1. The anti-aging butyl inner tube has an anti-aging layer 1 made of styrene-butadiene rubber, which has good wear resistance and aging resistance. The anti-aging layer 2 is made of ethylene-propylene copolymer rubber, which has excellent heat resistance, aging resistance, ozone resistance and stability. It is convenient to improve the overall anti-aging performance of the butyl inner tube, slow down the reduction of the comprehensive performance of the butyl inner tube due to aging, and is beneficial to prolong the service life of the butyl inner tube.

[0014] 2. The anti-aging butyl inner tube has a corrosion-resistant layer made of chloroprene rubber, which has good physical and mechanical properties, is oil-resistant, heat-resistant, acid-resistant and alkali-resistant, and has high tensile strength and elongation. The high-temperature resistant layer is made of hydrogenated nitrile rubber, which has good wear resistance and excellent corrosion resistance, tensile resistance, tear resistance and compression resistance, which is beneficial to improving the corrosion resistance and heat resistance of the butyl inner tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 .

[0016] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 .

[0017] Figure 3 It is a structural schematic diagram of the utility model.

[0018] In the figure: 1. Inner tube base layer; 2. Anti-aging layer one; 3. Anti-aging layer two; 4. Corrosion-resistant layer; 5. High temperature-resistant layer; 6. Shock-absorbing layer; 7. Anti-puncture layer; 8. Wear-resistant layer; 9. Inflatable nozzle; 10. Valve cap. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 The utility model provides a technical solution: an anti-aging butyl inner tube, comprising an inner tube base layer 1, an anti-aging layer 2 is fixedly connected to the outer surface of the inner tube base layer 1, an anti-aging layer 2 is fixedly connected to the outer surface of the anti-aging layer 2, the anti-aging layer 2 is made of styrene-butadiene rubber, and the anti-aging layer 2 3 is made of ethylene-propylene copolymer rubber. The anti-aging layer 2 is made of styrene-butadiene rubber, which has good wear resistance and aging resistance. The anti-aging layer 2 is made of ethylene-propylene copolymer rubber, which has excellent heat resistance, aging resistance, ozone resistance and stability, which is convenient for improving the overall anti-aging performance of the butyl inner tube, slowing down the reduction of the comprehensive performance of the butyl inner tube due to aging, and is conducive to extending the service life of the butyl inner tube.

[0021] The outer surface of the anti-aging layer 2 3 is fixedly connected with a corrosion-resistant layer 4, and the outer surface of the corrosion-resistant layer 4 is fixedly connected with a high-temperature resistant layer 5. An inflation nozzle 9 is fixedly connected to the inner tube base layer 1, and a nozzle cap 10 is arranged on the inflation nozzle 9. The nozzle cap 10 is threadedly connected with the inflation nozzle 9. The inner tube base layer 1 is made of butyl rubber, the corrosion-resistant layer 4 is made of chloroprene rubber, and the high-temperature resistant layer 5 is made of hydrogenated nitrile butadiene rubber. The corrosion-resistant layer 4 is made of chloroprene rubber, which has good physical and mechanical properties, oil resistance, heat resistance, acid and alkali resistance, and high tensile strength and elongation. The high-temperature resistant layer 5 is made of hydrogenated nitrile butadiene rubber, which has good wear resistance, excellent corrosion resistance, tensile resistance, tear resistance and compression resistance, and is conducive to improving the corrosion resistance and heat resistance of the butyl inner tube.

[0022] The outer surface of the high temperature resistant layer 5 is fixedly connected with a shock absorbing layer 6, the outer surface of the shock absorbing layer 6 is fixedly connected with an anti-puncture layer 7, the outer surface of the anti-puncture layer 7 is fixedly connected with a wear-resistant layer 8, the shock absorbing layer 6 is made of nitrile rubber, and the wear-resistant layer 8 is epoxy resin coating. The anti-puncture layer 7 forms protection for the internal structure to improve the anti-puncture performance of the tire, and the wear-resistant layer 8 is epoxy resin coating to improve the wear resistance of the inner tube surface, which is beneficial to improving the comprehensive performance of the butyl inner tube.

[0023] During operation, the anti-aging layer 1 2 is made of styrene-butadiene rubber, which has good wear resistance and aging resistance. The anti-aging layer 2 3 is made of ethylene-propylene copolymer rubber, which has excellent heat resistance, aging resistance, ozone resistance and stability, which is convenient for improving the overall anti-aging performance of the butyl inner tube, slowing down the reduction of the comprehensive performance of the butyl inner tube due to aging, and is beneficial to extending the service life of the butyl inner tube. The corrosion-resistant layer 4 is made of chloroprene rubber, which has good physical and mechanical properties, oil resistance, heat resistance, acid and alkali resistance, and high tensile strength and elongation. The high-temperature resistant layer 5 is made of hydrogenated nitrile butadiene rubber, which has better wear resistance and excellent corrosion resistance, tensile resistance, tear resistance and compression resistance, which is beneficial to improving the corrosion resistance and heat resistance of the butyl inner tube. The puncture-proof layer 7 forms protection for the internal structure, improves the puncture-proof performance of the tire, and the wear-resistant layer 8 is made of epoxy resin coating to improve the wear resistance of the inner tube surface, which is beneficial to improving the comprehensive performance of the butyl inner tube.

[0024] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. An anti-aging butyl inner tube, comprising an inner tube base layer (1), characterized in that: The outer surface of the inner tire base layer (1) is fixedly connected to an anti-aging layer 1 (2), the outer surface of the anti-aging layer 1 (2) is fixedly connected to an anti-aging layer 2 (3), the outer surface of the anti-aging layer 2 (3) is fixedly connected to a corrosion-resistant layer (4), the outer surface of the corrosion-resistant layer (4) is fixedly connected to a high-temperature resistant layer (5), the outer surface of the high-temperature resistant layer (5) is fixedly connected to a shock-absorbing layer (6), the outer surface of the shock-absorbing layer (6) is fixedly connected to an anti-puncture layer (7), and the outer surface of the anti-puncture layer (7) is fixedly connected to a wear-resistant layer (8).

2. An anti-aging butyl inner tube according to claim 1, characterized in that: An inflation nozzle (9) is fixedly connected to the inner tube base layer (1), and an inflation nozzle cap (10) is provided on the inflation nozzle (9).

3. An anti-aging butyl inner tube according to claim 2, characterized in that: The air nozzle cap (10) is threadedly connected to the inflation air nozzle (9), and the inner tube base layer (1) is made of butyl rubber.

4. The anti-aging butyl inner tube according to claim 1, characterized in that: The anti-aging layer 1 (2) is made of styrene-butadiene rubber, and the anti-aging layer 2 (3) is made of ethylene-propylene copolymer rubber.

5. The anti-aging butyl inner tube according to claim 1, characterized in that: The corrosion-resistant layer (4) is made of chloroprene rubber, and the high-temperature-resistant layer (5) is made of hydrogenated nitrile butadiene rubber.

6. The anti-aging butyl inner tube according to claim 1, characterized in that: The shock-absorbing layer (6) is made of nitrile rubber, and the wear-resistant layer (8) is made of epoxy resin paint.

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