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Tire bead ring encapsulating rubber

A traveler and rubber coating technology, applied in the field of rubber products, can solve problems such as poor adhesion, achieve good adhesion, excellent processing performance, and improve physical and mechanical properties and stability.

Inactive Publication Date: 2016-04-06
AEOLUS TIRE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, fiber spiral wrapped cloth is used in the tire bead ring, which has poor adhesion to adjacent parts and cannot meet the requirements of the new molding process. It is particularly necessary to develop a new type of tire bead bead covering formula to replace the fiber spiral wrapped cloth

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0017] A preparation method for tire bead rubber lagging, the specific steps are:

[0018] (1) Put natural rubber, styrene-butadiene rubber and 70% soft carbon black into the internal mixer to make a section of masterbatch, realize uniform mixing of raw materials, and improve the physical and mechanical properties and stability of the rubber compound;

[0019] (2) Put a section of masterbatch made in step (1) together with the remaining soft carbon black, white carbon black, methyl donor, resorcinol donor, and phenolic tackifying resin into the internal mixer for internal mixing Made into two-stage masterbatch;

[0020] (3) Put the second-stage masterbatch produced in step (2) together with sulfur and accelerator into the internal mixer to make the final compound, and press it into a film.

Embodiment 1

[0022] A kind of tire bead rubber lagging, comprising the following raw materials in parts by weight: 20kg of natural rubber, 80kg of styrene-butadiene rubber, 80kg of soft carbon black, 10kg of white carbon black, 1kg of resorcinol donor, 5kg of methyl donor, Phenolic tackifying resin 8kg.

[0023] The concrete steps of preparation method are:

[0024] (1) Put natural rubber, styrene-butadiene rubber and 70% soft carbon black into the internal mixer to make a section of masterbatch, realize uniform mixing of raw materials, and improve the physical and mechanical properties and stability of the rubber compound;

[0025] (2) Put a section of masterbatch made in step (1) together with the remaining soft carbon black, white carbon black, methyl donor, resorcinol donor, and phenolic tackifying resin into the internal mixer for internal mixing Made into two-stage masterbatch;

[0026] (3) Put the second-stage masterbatch produced in step (2) together with sulfur and accelerator i...

Embodiment 2

[0028] A kind of rubber lagging for a tire bead, comprising the following raw materials in parts by weight: 30kg of natural rubber, 70kg of styrene-butadiene rubber, 84kg of soft carbon black, 9kg of white carbon black, 2kg of resorcinol donor, 4kg of methyl donor, Phenolic tackifying resin 9kg, preparation method is with embodiment 1.

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Abstract

The invention discloses tire bead ring encapsulating rubber. The tire bead ring encapsulating rubber is prepared from the following raw materials in parts by weight: 20 to 80 parts of natural rubber, 20 to 80 parts of styrene butadiene rubber, 80 to 100 parts of soft carbon black, 5 to 10 parts of white carbon black, 1 to 3 parts of resorcinol donor, 2 to 5 parts of methyl donor, 5 to 10 parts of phenolic tackifying resin, 4 to 8 parts of sulfur and 1 to 2 parts of accelerant, wherein a mass ratio of the natural rubber and the styrene butadiene rubber is 1:4 to 4:1. A formula of the tire bead ring encapsulating rubber disclosed by the invention has the characteristics of high specific elongation, large hardness, good adhesion performance with steel, good machining performance and the like; the tire bead ring encapsulating rubber replaces common spiral fiber wrapping cloth to be applied to a bead ring position of an all-steel radial tire, so that not only can the machining viscosity be improved, but also the durability of a tire bead of the tire can be increased at the same time.

Description

technical field [0001] The invention belongs to the field of rubber products, and in particular relates to a tire bead ring lagging. Background technique [0002] Overload-resistant tires have high requirements on the bead position, and the two-step molding process can effectively improve the bead durability of the tire and increase the service life of the tire. Different tire building processes have different requirements for tire parts and production processes. At present, fiber spiral wrapping is used in the tire bead, which has poor adhesion to adjacent parts and cannot meet the requirements of the new molding process. It is particularly necessary to develop a new type of tire bead lagging formula to replace the fiber spiral wrap. Contents of the invention [0003] The purpose of the present invention is to provide a tire bead lagging, which can not only improve the adhesion between the tire bead lagging and adjacent components and bead rings, but also improve the dur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L7/00C08L61/06C08L61/12C08K3/04C08K3/36C08K5/3492C08K5/3477
CPCC08L7/00C08L9/06C08L2205/02C08L2205/03C08L2205/035
Inventor 刘磊李佰发杨艳平刘豫皖郭金建李国瑞
Owner AEOLUS TIRE
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