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Tire sidewall rubber without mold release agent

A release agent and sidewall rubber technology, which is applied in the field of tire sidewall rubber, can solve the problems of uneconomical and inefficient spraying of release agent, affecting the appearance of the sidewall, and reducing production efficiency, so as to improve dynamic and static protection High performance, strong process executable, and the effect of improving vulcanization efficiency

Inactive Publication Date: 2016-06-08
SICHUAN TYRE & RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, spraying the release agent will take up production time and reduce production efficiency; if the spraying is uneven, it will affect the appearance of the sidewall
Therefore, spraying mold release agent is neither economical nor efficient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Raw material invention glue

[0024] Natural rubber grade SMR2052.0

[0025] Butadiene rubber BR900048.0

[0026] Stearic acid 2.8

[0027] Active Zinc Oxide 3.6

[0028] Antiaging agent 40201.2

[0029] Antiaging agent 31000.8

[0030] Antiaging agent TMQ1.3

[0031] Rubber protective wax 1.8

[0032] Internal release agent grade AT-162.5

[0033] Carbon black N33946.5

[0034] Environmentally friendly aromatic oil brand name Vivatec5005.5

[0035] Accelerator CBS0.92

[0036] Insoluble sulfur IS-60051.85

[0037] Anti-scorch agent CTP0.1.

[0038] In this embodiment, the tire sidewall compound without mold release agent is manufactured using an intelligent mixing process with joint control of time, energy and instantaneous power, and a total of three stages of processing are carried out. The first stage of mixing and feeding sequence: natural rubber grade SMR20, butadiene rubber BR9000 are first added to the internal mixer for preliminary mixing, and then ...

Embodiment 2

[0060] Raw material invention glue

[0061] Natural rubber grade SMR2055.0

[0062] Butadiene rubber BR900045.0

[0063] Stearic acid 2.8

[0064] Active Zinc Oxide 3.6

[0065] Antiaging agent 40201.2

[0066] Antiaging agent 31000.8

[0067] Antiaging agent TMQ1.3

[0068] Rubber protective wax 1.8

[0069] Internal release agent grade AT-162.5

[0070] Carbon black N33952.0

[0071] Environmentally friendly aromatic oil brand name Vivatec5007.2

[0072] Accelerator CBS1.1

[0073] Insoluble sulfur IS-60052.0

[0074] Anti-scorch agent CTP0.1.

[0075] In this embodiment, the tire sidewall compound without mold release agent is manufactured using an intelligent mixing process with joint control of time, energy and instantaneous power, and a total of three stages of production are carried out. The first stage of mixing and feeding sequence: natural rubber grade SMR20, butadiene rubber BR9000 are first added to the internal mixer for preliminary mixing, and then st...

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Abstract

The invention relates to a tire sidewall rubber without a mold release agent and a processing technology thereof. According to a design scheme provided by the invention, the formula mainly comprises the following components: natural rubber with a grade of SMR20, butadiene rubber BR9000, stearic acid, active zinc oxide, an anti-aging agent 4020, an anti-aging agent 3100, an anti-aging agent TMQ, rubber protective wax, carbon black N339, an internal releasing agent with a grade of AT-16, environment-friendly aromatic hydrocarbon oil with a grade of Vivatec 500, an accelerant CBS, insoluble sulfur IS-6005, and an anti-scorching agent CTP. The formula employs a natural rubber and butadiene rubber coexistent raw rubber system, uses the new materials, i.e. the internal releasing agent with a grade of AT-16, the active zinc oxide and environment-friendly aromatic hydrocarbon oil with a grade of Vivatec 500. By applying the formula to rubber production, the operation is simple and convenient, the production cost is low, and the rubber processing properties are good. The invention provides a tire sidewall rubber without a mold release agent for tire production.

Description

technical field [0001] The invention relates to a rubber material for tire sidewalls free of a mold release agent, which is suitable for the production of various types of automobile tires. Background technique [0002] Tire production needs to be heated by the vulcanizing machine mold, so that the raw tire composition materials undergo chemical changes, and the internal rubber molecular chains are cross-linked to form a three-dimensional network structure, thereby obtaining a finished tire with high mechanical strength. During the vulcanization process of the raw tire, the molding of the inner surface is obtained by the retractable bladder, and the molding of the outer surface including the tread, sidewall, and rim is obtained by the metal mold of the vulcanizer. For crisp lines, lettering, graphics and a smooth finish on the sidewalls, air-filled bladders exert pressure on the green tire between the metal moulds. There is often a small amount of ejection on the surface of...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/00C08K13/02C08K5/09C08K3/22C08K3/04C08K5/01C08K5/18C08K3/06B60C1/00
Inventor 向春东李贞延张俊伟罗建刚董继学李冬王廷华熊国华刘晓庆陈键王强刘超冯友林孙建峰
Owner SICHUAN TYRE & RUBBER CO LTD
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