Semi-steel wire radial tire undertread calendering sizing compound

A technology for radial tires and belt layers, applied in the field of belt layer production by calendering method, can solve problems such as unevenness and scorch of calendered cord fabrics

Inactive Publication Date: 2009-05-20
SICHUAN TYRE & RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary rubber materials are prone to scorching during actual use, and the calendered cord is not smooth

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Raw material weight ratio

[0022] Natural rubber (code SMR20) 100.0

[0023] Carbon black N326 35.0

[0024] Carbon black N660 25.0

[0025] Zinc Oxide 8.0

[0026] Hydrated silica 10.0

[0027] [Bis(triethoxysilylpropyl)]tetrasulfide 3.0

[0028] N-(1,3-Dimethylbutyl)-N'-phenyl-p-phenylenediamine 1.5

[0029] 2,2,4-trimethyl-1,2-dihydroquinoline polymer 1.5

[0030] Resorcinol-80 2.0

[0031] Hexamethoxymethylmelamine 5.0

[0032] N, N-dicyclohexyl-2-benzothiazole sulfenamide 1.5

[0033] Dimorpholine disulfide 0

[0034] Insoluble sulfur IS-7020 5.5

[0035] N-cyclohexylthiophthalimide 0.3

[0036] In this embodiment, the following processes are used to manufacture the sizing material:

[0037] The small compound test rubber is prepared by two-stage mixing on a Φ160×320 open mill. Add resorcinol-80, binder RA-65 and all vulcanization system materials during the second stage of mixing, and other ingredients are added during the first stage of mixing. Aft...

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Abstract

The invention relates to calendering belt compound in a semi-steel wire radial tyre. The main points are as follows: the belt glue stuff is prepared from various materials which comprise natural rubber (code: SMR20), carbon black N326, carbon black N660, white carbon black, a silane coupling agent, zinc oxide, an antioxidant 4020, an antioxidant RD, resorcinol-80, a binding agent RA-65, an accelerator DZ, insoluble sulfur IS-7020 and a scorch retarder CTP.

Description

Technical field [0001] The invention relates to a rubber compound for a belt layer of a semi-steel wire radial tire, which is used for producing the belt layer by a calendering method. Background technique [0002] The key component of the semi-steel wire radial tire - the steel wire belt layer, is mainly produced by calendering. The calendering method is to make the rubber material have a certain fluidity by heating the rubber material in the open mill, and at the same time, the roller of the calender produces a strong mechanical force to squeeze the rubber material and penetrate into the steel cord, so that the rubber material and the steel wire curtain The threads are organically bonded together into a strong belt. Ordinary rubber materials are prone to scorching during actual use, and the calendered cord is not smooth. This requires that the rubber compound for the belt layer produced by the calendering method should have a high Mooney viscosity to meet the flatness an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08K5/47B60C1/00C08K3/36C08K3/04C08K5/20C08K3/22
Inventor 杨齐张勋民卿勤董继学李冬罗建刚朱家甫田小顺黄玉君杨利伟
Owner SICHUAN TYRE & RUBBER CO LTD
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