All-steel radial truck tyre carcass size composition and mixing method thereof

A radial tire and carcass rubber technology, which is applied in the field of all-steel radial tire carcass rubber composition and its mixing, can solve the problem of low rubber hardness and tensile strength, high price of anti-aging agent 4020, and the impact on tires. Use performance and other issues to achieve the effect of improving rubber performance, improving processing safety and elasticity, and good adhesion performance

Inactive Publication Date: 2014-03-26
WEIFANG YUELONG RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The anti-aging agent 4020 is widely used in the formula of the existing carcass compound composition. The price of the anti-aging agent 4020 is high, the adhesion performance is poor, and the hardness and tensile strength of the rubber compound are low, which affects the performance of the tire.
In addition, magnesium oxide or zinc oxide is widely used as the active agent in the formula of the existing carcass compound. In the reaction process, not only the dosage is large, but also the reaction time is longer. The use of magnesium oxide or zinc oxide will also affect the performance of the carcass.

Method used

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  • All-steel radial truck tyre carcass size composition and mixing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The active agent is nano-zinc oxide, and the particle size of the nano-zinc oxide is 20-80nm.

[0027] The anti-aging agent TMQ is 2,2,4-trimethyl-1,2-dihydroquinoline polymer.

[0028] The mixing method of the above-mentioned carcass compound composition comprises the following steps:

[0029] 1. One-stage mixing: control the temperature of the internal mixing chamber of the internal mixer to 35°C, and the rotor speed to 80r.min -1 , then add 100 parts of natural rubber, 1 minute later, add 8 parts of nano zinc oxide, 1 part of anti-aging agent 4020, 0.9 parts of anti-aging agent TMQ, 20 parts of adhesive GLR, after 1.5 minutes, add 56 parts of carbon black N326, 3 Deglue after minutes;

[0030] 2. Two-stage mixing: Add the above-mentioned degumming, 70204.5 parts of insoluble sulfur, 1.25 parts of accelerator DZ, 0.2 parts of anti-scorch agent CTP, 5 parts of adhesive RA65 in the open mixer, thin pass 5 times, and the next film .

[0031] Example 2, an all-steel r...

Embodiment 2

[0032] The active agent is nano-zinc oxide, and the particle size of the nano-zinc oxide is 20-80nm.

[0033] The mixing method of the above-mentioned carcass compound composition comprises the following steps:

[0034] 1. One-stage mixing: control the temperature of the internal mixing chamber of the internal mixer to 35°C, and the rotor speed to 80r.min -1 , then add 100 parts of natural rubber, 1 minute later, add 8 parts of nano-zinc oxide, 1 part of anti-aging agent 4020, 1.05 parts of anti-aging agent TMQ, 3 parts of adhesive GLR20, after 1.5 minutes, add 56 parts of carbon black N326, 3 Deglue after minutes;

[0035] 2. Two-stage mixing: Add the above-mentioned degumming, 4.5 parts of insoluble sulfur 7020, 1.25 parts of accelerator DZ, 0.2 parts of anti-scorch agent CTP, 5 parts of adhesive RA65 into the open mill in sequence, thin pass 5 times, and lower piece.

[0036] The anti-aging agent TMQ is 2,2,4-trimethyl-1,2-dihydroquinoline polymer.

[0037] Example 3, a...

Embodiment 3

[0038] The mixing method of the above-mentioned carcass compound composition comprises the following steps:

[0039] 1. One-stage mixing: control the temperature of the internal mixing chamber of the internal mixer to 35°C, and the rotor speed to 80r.min -1 , then add 100 parts of natural rubber, 1 minute later, add 8 parts of nano zinc oxide, 1 part of anti-aging agent 4020, 1.5 parts of anti-aging agent TMQ, 3 parts of adhesive GLR20, after 1.5 minutes, add 56 parts of carbon black N326, 3 Deglue after minutes;

[0040] 2. Two-stage mixing: Add the above-mentioned degumming, 4.5 parts of insoluble sulfur 7020, 1.25 parts of accelerator DZ, 0.2 parts of anti-scorch agent CTP, 5 parts of adhesive RA65 into the open mill in sequence, thin pass 5 times, and lower piece.

[0041] The active agent is nano-zinc oxide, and the particle size of the nano-zinc oxide is 20-80nm.

[0042] The anti-aging agent TMQ is 2,2,4-trimethyl-1,2-dihydroquinoline polymer.

[0043] The performan...

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Abstract

The invention discloses an all-steel radial truck tyre carcass size composition which comprises the following components by weight: 100 parts of natural rubber, 56 parts of carbon black N326, 1 part of an antiager 4020, 0.9-1.5 parts of an antiager TMQ, 4.5 parts of insoluble sulfur 7020, 1.25 parts of an accelerator DZ, 0.2 part of a scorch retarder CTP, 5 parts of an adhesive RA65, 3 parts of an adhesive GLR, and 8 parts of an active agent. Through the adoption of the technical scheme, the antiager 4020 and the antiager TMQ are combined for use to enable the mooney viscosity of the size to be increased, the scorch time of the size is prolonged, the adhesion property is enhanced, and when the ratio of the antiager 4020 to the antiager TMQ is 1:1.05, the adhesion property and the coating quality are better.

Description

technical field [0001] The invention relates to tire rubber materials, in particular to an all-steel load radial tire carcass rubber material composition and a mixing method thereof. Background technique [0002] All-steel radial tires are made of steel cord for the belt layer and carcass layer, and are generally medium-duty truck tires [0003] and light duty tires. It mainly has the following advantages: 1. Wear-resistant, puncture-resistant, durable, high mileage and long service life; 2. Small rolling resistance, low fuel consumption, low heat generation, and less exhaust emissions; Comfortable vibration and stable handling. Steel wire has been widely used as a skeleton material in the belt layer and carcass layer of radial tires. In order to improve the adhesion between steel wire and rubber, it is generally plated with brass on its surface. During vulcanization, the sulfur in the compound reacts with the oxidized and copper oxides on the surface of the coating to f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08K13/02C08K3/04C08K3/06C08K3/22
Inventor 刘新刚邵志勇刘林宝温显新刘永德
Owner WEIFANG YUELONG RUBBER
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