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A method for repairing tire inner liner

An airtight layer and tire technology, applied in the surface pretreatment bonding method, adhesive heating bonding method, bonding method, etc., can solve the problems of tire micro-leakage, etc., and achieve the improvement of mechanical properties and shape Increased fixation rate and shape recovery rate to improve the effect of repairing effect

Active Publication Date: 2022-05-13
WUXI I REACH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a method for repairing the tire inner liner, which improves the damage of the tire inner liner through the process of spraying and tearing off the polymer memory glue material, and solves the problem of tire micro-leakage

Method used

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  • A method for repairing tire inner liner
  • A method for repairing tire inner liner
  • A method for repairing tire inner liner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Preparation of modified trans-polyisoprene:

[0040] Take TPI at 120°C and 60rpm / min, heat and melt it completely, then add N-BOC-4-methylene-L-proline methyl ester and mix for 3 minutes, then add initiator to melt and graft for 8 minutes; then the reaction The product was wrapped with tweezers burned by an alcohol lamp, used a Soxhlet extractor, added acetone and refluxed for 48 hours at 80°C, and then dried in a vacuum oven at 65°C to obtain the modified trans-polyisoprene Diene. The amount of each raw material added includes, in parts by weight, 100 parts of TPI, 7 parts of N-BOC-4-methylene-L-proline methyl ester, 2 parts of initiator DCP; modified trans polyisoprene The grafting rate of alkenes is 68.7%.

[0041] Preparation of Acrylate Composite Resin:

[0042] (1) Mix absolute ethanol and deionized water at a volume ratio of 1:1, adjust the pH to 3.5, add hollow spherical manganese dioxide, and after ultrasonic dispersion is uniform, add a silane coupling agen...

Embodiment 2

[0048] The difference between the preparation of modified trans polyisoprene and Example 1 is:

[0049] The amount of each raw material added includes, in parts by weight, 98 parts of TPI, 8 parts of N-BOC-4-methylene-L-proline methyl ester, 2.5 parts of initiator DCP; modified trans polyisoprene The grafting rate is 71.3%.

[0050] The preparation of the acrylate composite resin was the same as in Example 1.

[0051] A kind of polymer memory glue material raw material includes, by weight, 43 parts of modified trans polyisoprene prepared in this embodiment, 24 parts of acrylate composite resin, 9 parts of hydrogenated rosin glyceride, 7 parts of nano Grade chitin whiskers, 4 parts propylene glycol dicaprylate, 5 parts catalyst, 3 parts dibutyl phthalate, 1.5 parts antioxidant. Among them, the catalyst is N,N-dimethylethylaminoethylene glycol; the antioxidant includes antioxidant 1010 and antioxidant 168, and the weight ratio of the two is 6:4.

[0052] The preparation of th...

Embodiment 3

[0054] The difference between the preparation of modified trans polyisoprene and Example 1 is:

[0055] The amount of each raw material added includes, in parts by weight, 103 parts of TPI, 9 parts of N-BOC-4-methylene-L-proline methyl ester, 3 parts of initiator DCP; modified trans polyisoprene The grafting rate is 72.2%.

[0056] The preparation of the acrylate composite resin was the same as in Example 1.

[0057] A kind of polymer memory glue material raw material includes, by weight, 33 parts of modified trans polyisoprene prepared in this embodiment, 30 parts of acrylate composite resin, 12 parts of hydrogenated rosin glyceride, 9 parts of nano Grade chitin whiskers, 6 parts of propylene glycol dicaprylate, 4 parts of catalyst, 2 parts of dibutyl phthalate, 0.8 parts of antioxidant. Among them, the catalyst is N,N-dimethylethylaminoethylene glycol; the antioxidant includes antioxidant 1010 and antioxidant 168, and the weight ratio of the two is 6:3.5.

[0058] The pre...

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Abstract

The invention discloses a method for repairing a tire inner liner, and relates to the technical field of tire repair. Including: S1: grinding and vacuuming the inside of the tire; S2: heating the polymer memory adhesive material into a liquid to obtain a liquid solution; S3: spraying the liquid solution obtained in step S2 on the inner wall of the tire, and naturally cooling to cool down to Below 50°C, tear off the sprayed polymer memory adhesive material layer, and finally spray the tire self-healing layer coating. The method improves the damage of the tire inner liner through the process of spraying and tearing off the polymer memory adhesive material, and solves the problem of micro-leakage of the tire. And the prepared polymer memory adhesive material has excellent mechanical properties, good shape memory properties, and has a good adsorption effect on release agents such as silicone oil.

Description

technical field [0001] The invention belongs to the technical field of tire repair, and in particular relates to a method for repairing a tire inner liner. Background technique [0002] Usually, talcum powder, water-based release agent or oil-based release agent is used in the tire production process. In the process of processing self-repairing safety tires, the residual release agent needs to be removed; if it is not removed or removed cleanly, the tire within one year will be damaged. Some vulcanizing agents and vulcanization accelerators will be precipitated. On the one hand, there is a problem with the adhesion between the tire self-repairing layer and the inner surface of the tire; The coating is absorbed, and the interface produces a cross-linking reaction, which in turn will cause damage to the self-healing function of the tire. At present, the common way to remove the mold release agent is to clean it with chemical reagents, but the preparation, use and post-process...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08C19/22C09J115/00C09J151/00C09J193/04C09J105/08C09J11/04C09J5/02C09J5/06C09J5/00
CPCC08C19/22C09J115/00C09J11/04C09J5/02C09J5/06C09J5/00C09J2421/006C09J2415/00C08L51/003C08L93/04C08L5/08C08K9/06C08K7/24
Inventor 蒋凯朱渊
Owner WUXI I REACH TECH
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