Pre-vulcanized tread rubber for retreaded tire and manufacturing process of pre-vulcanized tread rubber

A technology for precured tires and retreaded tires, which is applied to special tires, tire parts, transportation and packaging, etc. It can solve the problems affecting the overall quality of retreaded tires and the decline in carcass performance, so as to avoid the decline in rubber performance and aging resistance Performance improvement and the effect of improving tensile properties

Inactive Publication Date: 2016-08-17
中国化工集团曙光橡胶工业研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the hot retreading process, the old tire carcass needs to withstand high temperature and high pressure for a period of...

Method used

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  • Pre-vulcanized tread rubber for retreaded tire and manufacturing process of pre-vulcanized tread rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The prevulcanized tread rubber for retreading tires of the present invention is formulated by weight ratio from the following raw materials;

[0027]

[0028] The preparation process of the above-mentioned embodiments is the same. Firstly, the rubber is masticated, and then the rubber after mastication is mixed with other raw materials according to the weight ratio to make a mixed rubber through an internal mixer, and the mixed rubber is extruded through an extruder with a A film of a certain size is then vulcanized on a flat vulcanizer to obtain pre-vulcanized tread rubber.

[0029] The prevulcanized tread rubber of the present invention has the characteristics of excellent physical and mechanical properties, wear resistance, flex fatigue resistance, aging resistance, and vulcanization reversion resistance after testing. The best performance test data is as follows:

[0030] .

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Abstract

The invention discloses a prevulcanized tread rubber for retreading tires and a manufacturing process thereof. Natural rubber is used as the main matrix material, and reinforcing agent, anti-aging agent, active agent, vulcanizing agent, accelerator, dispersing agent are added in a certain proportion. A variety of fillers such as anti-scorch agent, anti-scorch agent and anti-reversion agent. The sizing material of the invention is characterized in that the sizing material is mainly used for the retreading of truck tires, and has excellent physical and mechanical properties, wear resistance, flexural fatigue resistance, aging resistance and reversion resistance. When the tire is retreaded, the pre-vulcanized tread compound is used in combination with the pre-vulcanized buffer compound, which can reduce or even avoid the delamination problem between the old carcass and the tread, improve the safety of the retreaded tire, and prolong the service life of the retreaded tire.

Description

technical field [0001] The invention belongs to the field of tire retreading materials, and particularly relates to a prevulcanized tread rubber material for retreading tires and a manufacturing process thereof. The tread rubber material is used for retreading truck tires. Background technique [0002] With the rapid development of the automobile industry, the consumption of tires is increasing, and the generation of waste tires has become an increasingly serious problem. Since the tread of the tire is seriously damaged while the performance of the carcass is relatively small during the use of the tire, waste tires can be reused. Especially under the background that the country is vigorously advocating low-carbon economy, it has become the consensus of the society to retread waste tires as renewable resources. [0003] The tire retreading technology includes hot retreading and cold retreading, among which cold retreading is also called pre-vulcanized retreading. Hot turnin...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/00C08L91/00C08K13/02C08K3/22C08K5/09C08K3/04C08K3/36B60C1/00
CPCC08L7/00B60C1/0016C08K2201/014
Inventor 张信王丽芝
Owner 中国化工集团曙光橡胶工业研究设计院有限公司
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