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Synthetic rubber for nylon curtain wire on inner layer of tire

A technology of nylon cord and synthetic rubber, which is applied in the field of synthetic rubber, can solve the problems of carcass cord overvulcanization and high cost, and achieve the effect of improving overall performance, quality and market competitiveness

Inactive Publication Date: 2009-09-30
SHANDONG HENGYU RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the defects of the prior art, and to propose a tire inner nylon cord synthetic rubber mainly around solving the problem of overvulcanization of the carcass cord during the vulcanization process and solving the problem of high cost of this formula

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Embodiment 1, the composition of raw material (parts by weight): 90 parts of natural rubber, 10 parts of styrene-butadiene rubber, 50 parts of fine reclaimed rubber, 4 parts of zinc oxide, 3 parts of stearic acid, 1.5 parts of RD type antioxidant and 1.5 parts of 4010NA Type anti-aging agent, 1.5 parts of C5 type tackifying resin, 1.5 parts of A-78 type leveling agent, 1 part of A-type plasticizer, 2.2 parts of Si-69 type silane coupling agent, 36 parts of N330 type high wear-resistant furnace black, 7 parts of white carbon black, 8.5 parts of aromatic oil, 2.3 parts of ordinary sulfur, 1.05 parts of NOBS type and 0.3 parts of DM type vulcanization accelerator, 0.15 parts of CTP type anti-scorch agent.

Embodiment 2

[0009] Embodiment 2, the composition of raw material (parts by weight): 90 parts of natural rubber, 8.5 parts of styrene-butadiene rubber, 45 parts of fine reclaimed rubber, 3.5 parts of zinc oxide, 2.5 parts of stearic acid, 1.5 parts of RD type antioxidant and 1.5 parts of BLE -W type anti-aging agent, 1.5 parts of C5 type tackifying resin, 1.5 parts of A-78 type leveling agent, 1 part of A type plasticizer, 2 parts of Si-69 type silane coupling agent, 38 parts of N330 type high wear-resistant furnace Black, 8 parts of white carbon black, 8.5 parts of aromatic oil, 2 parts of ordinary sulfur, 1.05 parts of NOBS type and 0.3 parts of DM type vulcanization accelerator, 0.15 part of CTP type anti-scorch agent.

Embodiment 3

[0010] Embodiment 3, the composition of raw material (weight): 90 parts of natural rubber, 10.5 parts of styrene-butadiene rubber, 55 parts of fine reclaimed rubber, 3 parts of zinc oxide, 2.5 parts of stearic acid, 1.5 parts of RD type antioxidant and 1.5 parts of DTPD Type anti-aging agent, 1.5 parts of C5 type tackifying resin, 1.5 parts of A-78 type leveling agent, 1 part of A-type plasticizer, 2 parts of Si-69 type silane coupling agent, 38 parts of N330 type high wear-resistant furnace black, 8 parts of white carbon black, 8.5 parts of aromatic oil, 2 parts of common sulfur, 1.05 parts of NOBS type and 0.3 parts of DM type vulcanization accelerator, 0.15 part of CTP type anti-scorch agent.

[0011] The above only enumerates 3 specific implementation columns, and the experiment proves that any combination within the ratio range of this solution can achieve the desired effect.

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PUM

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Abstract

The invention relates to a synthetic rubber for a nylon curtain wire on an inner layer of a tire in the field of synthetic rubber. The technical proposal is as follows: the synthetic rubber includes the following raw materials according to the parts by weight: 90 of natural rubber, 8-12 of butadiene-styrene rubber, 40-60 of fine reclaimed rubber, 3-5 of zinc oxide, 2-3.5 of stearic acid, 3-5 of antioxidant, 1.5-3 of tackifying resin, 1.5-3 of homogenizing agent, 1-3 of plasticizer, 1.5-2.2 of silane coupling agent, 30-40 of high-abrasion furnace black, 6-8 of silica hydrated, 7.5-8.5 of aromatic oil, 2-3 of sulfur, 1-2 of vulcanization accelerator and 0.1-0.25 of antiscorcher. The invention adopts a silica hydrated and Si-69 balance vulcanization system so as to avoid over-vulcanization and then to greatly improve the whole performance of the tire. The formulation involves a great amount of fine reclaimed rubber to replace the natural rubber, thereby not only saving the cost and resources but also improving the milling and rolling property of the inner layer curtain wire rubber.

Description

technical field [0001] The invention relates to a tire inner layer nylon cord synthetic rubber in the field of synthetic rubber. Background technique [0002] The inner nylon cord rubber for bias tires is a very important raw material allocation part in the entire tire design. The quality of this formula design directly affects the heat resistance and stiffness of the tire shoulder, and then affects the overall service life of the tire. [0003] In order to improve the adhesion between this rubber and nylon cord, it is usually considered to use a large proportion of natural rubber in the formula, supplemented by a certain proportion of zinc oxide, stearic acid, anti-aging agent, tackifying resin, plasticizer, Linking agent and carbon black, etc., to increase its viscosity. However, since this compound is used inside the tire close to the vulcanization bladder, the tire receives more heat transfer during the vulcanization process, often due to the design deviation of the vu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/06C08L17/00C08K13/02C08K3/36C08K5/54
Inventor 田家礼张波张宏文施红影
Owner SHANDONG HENGYU RUBBER CO LTD
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