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Self-repairing tire inner liner rubber material and preparation method thereof

An airtight layer and self-repairing technology, which is applied to special tires, tire parts, transportation and packaging, etc., can solve the problems of reducing permeability, puncture resistance, self-repairing and repair-free capabilities that have not been effectively developed

Active Publication Date: 2020-10-23
SICHUAN YUANXING RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the application of this material in the tire inner liner reduces the permeability due to its own performance, that is, it improves the airtightness of the tire, but the anti-puncture self-repairing and repair-free ability of the application of this tire has not been effective. to develop

Method used

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  • Self-repairing tire inner liner rubber material and preparation method thereof
  • Self-repairing tire inner liner rubber material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Raw materials are prepared according to the following proportions by weight:

[0031] Natural rubber SVR3L: 10 parts; Exxpro TM Special elastomer: 90 parts; carbon black N550: 40 parts; light calcium carbonate: 30 parts; zinc oxide: 2.5 parts; stearic acid: 1.5 parts; uniform resin RH100; RD: 1.0 parts; Accelerator CZ: 1.2 parts; Sulfur: 0.35 parts; Alkylphenolic resin: 1.0 parts.

[0032] The natural rubber is masticated in the internal mixer for 120 seconds, and then the film is removed to obtain a plasticized film, which is parked for 2 hours for use; the plasticized film is the same as Exxpro TM After the special elastomer is masticated in the internal mixer for 30 seconds, add carbon black, light calcium carbonate, zinc oxide, stearic acid, anti-aging agent, and uniform resin and mix in the internal mixer for 175 seconds to make a compound rubber ; After the mixed rubber is parked for more than 4 hours, add accelerator, sulfur, and alkyl phenolic resin to the ope...

Embodiment 2

[0034] Raw materials are prepared according to the following proportions by weight:

[0035] Natural rubber SVR3L: 0 parts; xxpro TM Special elastomer: 100 parts; carbon black N550: 50 parts; light calcium carbonate: 25 parts; zinc oxide: 3 parts; stearic acid: 1.0 parts; uniform resin RH100: 2.5 parts; anti-aging agent 4020: 1 part; Agent RD: 1.0 parts; Accelerator CZ: 0.8 parts; Accelerator NS: 0.8 parts; Sulfur: 0.3 parts; Alkyl phenolic resin: 0.85 parts.

[0036] The preparation method is the same as in Example 1 to obtain the self-repairing tire inner liner compound.

Embodiment 3

[0038] Raw materials are prepared according to the following proportions by weight:

[0039] Natural rubber 20 parts, Exxpro TM Special elastomer: 80 parts, carbon black: 50 parts, light calcium carbonate: 25 parts, zinc oxide: 3 parts, stearic acid: 1.0 parts, uniform resin: 2.5 parts, antioxidant: 1.0 parts, accelerator RD: 1.6 parts, sulfur: 0.3 parts, alkylphenolic resin: 0.85 parts.

[0040] The preparation method is the same as in Example 1 to obtain the self-repairing tire inner liner compound.

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PUM

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Abstract

The invention discloses a self-repairing tire inner liner rubber material comprising the following components in parts by weight: 0 to 20 parts of natural rubber, 100 to 80 parts of a ExxproTM specialelastomer, 40 to 50 parts of carbon black, 20 to 30 parts of light calcium carbonate, 2 to 3 parts of zinc oxide, 1 to 1.5 parts of stearic acid, 2 to 3 parts of uniform resin, 0.5 to 2.5 parts of ananti-aging agent, 1.2 to 1.6 parts of an accelerant, 0.2 to 0.5 part of sulfur and 0.8 to 1.2 parts of alkyl phenolic resin. According to the tire inner liner rubber material disclosed by the invention, the ExxproTM special elastomer, the sulfur and the alkyl phenolic resin are used together; through reasonable component design, a tire not only has the advantage of lower gas leakage rate, but also has the advantage of self-healing of a wound after puncture, so that the use safety of a complete tire is improved, and the use risk of an injured tire is reduced.

Description

technical field [0001] The present invention relates to self-repairing tires, and more specifically, the present invention relates to a self-repairing tire inner liner compound and a preparation method thereof. Background technique [0002] The tire inner liner is composed of a variety of materials. The existing tires are easy to be punctured during use, and are prone to being punctured by foreign objects. Most of the tires are not found in time after being punctured. During driving and use, the rolling resistance is too large, and the fuel consumption is too high, causing safety hazards such as early tire damage or puncture. Today, with the rapid development of social economy, people's quality of life and safety awareness have been greatly improved. The safety of tires during use is the development trend of the tire industry. At present, in the tire industry, it has always been the direction of industry development and research that the inner liner does not need to be repa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/22C08L7/00C08K13/02C08K3/26C08K3/04C08K3/22C08K5/09B60C1/00
CPCC08L23/22B60C1/00C08K2003/265C08L7/00C08K13/02C08K3/26C08K3/04C08K3/22C08K5/09Y02T10/86
Inventor 郑昌福
Owner SICHUAN YUANXING RUBBER
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