Rubber composite applicable to inside liner of tubeless tire

A technology of rubber composition and inner liner, which is applied to special tires, tire parts, transportation and packaging, etc., can solve the problems of increased tire weight, increased manufacturing cost, multiple raw materials, etc., and achieves good self-adhesion and good air tightness. and fatigue resistance, tensile strength and aging resistance

Inactive Publication Date: 2014-05-21
BEIJING RES & DESIGN INST OF RUBBER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this method of adding a layer of inner liner will consume more raw materials, not only the weight of the tire will increase, but also the manufacturing cost will increase

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention will be further described below in conjunction with comparative examples and examples, but the present invention is not limited to these examples. The compositions and parts of the rubber compositions of Comparative Example of the present invention and Examples 1-3 are shown in Table 1, and the parts mentioned in the table are all parts by weight.

[0026] Table 1 Components and parts of rubber composition

[0027] components comparative example Example 1 Example 2 Example 3 bromobutyl rubber 100 100 90 80 natural rubber - - 10 20 Carbon black N660 60 50 50 50 light calcium carbonate - 25 25 25 sulfur 0.5 0.5 0.5 0.5 Zinc oxide 3 3 3 3 Accelerator 1.2 1.2 1.2 1.2 stearic acid 2 2 2 2 naphthenic oil 8 10 10 10 Processing aids 7 7 7 7 total 181.7 198.7 198.7 198.7

[0028] Comparative example of the present invention and embodiment...

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PUM

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Abstract

The invention discloses a rubber composite applicable to an inside liner of a tubeless tire. The composite comprises the following components in parts by weight: 70 to 100 parts of halogenated butyl rubber, 0 to 30 parts of natural rubber, 30 to 65 parts of carbon black, 20 to 45 parts of inorganic filler, 1 to 4 parts of vulcanizing agent, 1 to 2 parts of accelerant, 1 to 2 parts of active agent, 5 to 15 parts of softening agent and 6 to 10 parts of processing aid, wherein halogenated butyl rubber and natural rubber are blended to form a substrate material. The rubber composite is low in themogenesis, high in self-adhesion performance, outstanding in air impermeability and fatigue resistance, excellent in tensile property and ageing resistance, and applicable to the inside liner of the tubeless tire.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a rubber composition suitable for the inner liner of a tubeless tire. The invention belongs to the technical field of rubber industry and tire manufacturing. Background technique [0002] Tubeless radial tires have excellent high-speed performance, comfort, safety and economy, and are used in almost all radial tires from car tires to engineering machinery tires in Europe. The tubeless radial tire eliminates the inner tube and pad belt, and the overall mass of the wheel is reduced. The inner liner is a thin rubber layer inside the tubeless radial tire, which is required to maintain the high inflation pressure of the tire and prevent gas and moisture from flowing into the tire. Diffusion in the carcass, thereby reducing the internal pressure of the carcass and improving the dynamic durability of the tire. [0003] In addition to good air tightness and aging resistance, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/28C08L7/00C08K13/02C08K3/04C08K3/26C08K3/34C08K3/06C08K3/22C08K5/09B60C1/00
CPCC08K13/02B60C1/0008C08K3/04C08K3/06C08K3/22C08K3/26C08K2003/2296C08K2003/265C08L23/28
Inventor 颜晋钧
Owner BEIJING RES & DESIGN INST OF RUBBER IND
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