Mine-type all-steel radial truck tire tread rubber and preparation method thereof

A radial tire and tread rubber technology, applied in the field of tire tread rubber, can solve the problems of insufficient crack resistance and fracture resistance of grooves, and achieve improved crack resistance and fracture resistance, fatigue resistance, and tear resistance. The effect of crack strength

Inactive Publication Date: 2011-12-14
JIANGSU GENERAL SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the raw rubber system in the tread formula of all-steel radial truck tires all uses natural rubber. In fact, this formula is still only suitable for ordinary road conditions, but the all-natural rubber formula is suitable for the pattern grooves required by mine roads. There are deficiencies in crack resistance and fracture resistance, and the crack resistance and fracture resistance of tire tread rubber in mining areas determine the final service life of such mine tires

Method used

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  • Mine-type all-steel radial truck tire tread rubber and preparation method thereof
  • Mine-type all-steel radial truck tire tread rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment one: a kind of preparation method of mine-type all-steel radial truck tire tread rubber comprises the following process steps:

[0038] (1) One-stage mixing: Put 70kg of natural rubber, 30kg of styrene-butadiene rubber and 0.15kg of peptizer SJ-103 in the mixing room for 10 seconds of plasticizing raw rubber, then add 18kg of N234 carbon black, 10kg white carbon black, 2kg silane coupling agent, 2.5kg zinc oxide, 1kg stearic acid, 1kg plasticizer and 1kg anti-crack resin RT260, continue mixing for 15 seconds, then add 8kg N234 carbon black to the mixing chamber for Mix for 15 seconds, and finally inject 1 kg of aromatic oil into the mixing chamber for 10 seconds of mixing. After mixing, deglue is carried out to obtain a section of masterbatch; The pressure is 5.0 Bar, the cooling circuit water temperature of the mixing chamber is 40°C, the rotor cooling circuit water temperature is 35°C, and the glue discharge temperature is 140°C;

[0039] (2) Stand still f...

Embodiment 2

[0043] Embodiment two: a kind of preparation method of mine-type all-steel radial truck tire tread rubber comprises the following process steps:

[0044] (1) One-stage mixing: put 80kg of natural rubber, 20kg of styrene-butadiene rubber and 0.1kg of peptizer SJ-103 in the mixing room for 20 seconds of plasticizing raw rubber, and then add 19kg of N234 carbon black, 15kg white carbon black, 3kg silane coupling agent, 3.5kg zinc oxide, 2kg stearic acid, 2kg plasticizer and 2kg anti-crack resin RT260, continue mixing for 20 seconds, then add 10kg N234 carbon black to the mixing chamber for Mix for 20 seconds, and finally inject 2kg of aromatic oil into the mixing chamber for mixing for 15 seconds. After mixing, perform glue removal to obtain a section of masterbatch; The pressure is 5.5 Bar, the cooling circuit water temperature of the mixing chamber is 40°C, the rotor cooling circuit water temperature is 35°C, and the debinding temperature is 150°C;

[0045] (2) Stand still for...

Embodiment 3

[0049] Embodiment three: a kind of preparation method of mine-type all-steel radial truck tire tread rubber comprises the following process steps:

[0050] (1) One-stage mixing: Put 90kg of natural rubber, 10kg of styrene-butadiene rubber and 0.2kg of peptizer SJ-103 in the mixing room for raw rubber mastication for 30 seconds, then add 23kg of N234 carbon black, 20kg white carbon black, 4kg silane coupling agent, 4.5kg zinc oxide, 3kg stearic acid, 3kg plasticizer and 3kg anti-crack resin RT260, continue mixing for 35 seconds, then add 11kg N234 carbon black to the mixing chamber for Mix for 35 seconds, and finally inject 3kg of aromatic oil into the mixing chamber for 30 seconds of mixing. After mixing, deglue is carried out to obtain a section of masterbatch; the rotor speed during the section of mixing is 45rmp. The pressure is 6.0 Bar, the cooling circuit water temperature of the mixing chamber is 40°C, the rotor cooling circuit water temperature is 35°C, and the debindin...

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Abstract

The present invention relates to a kind of preparation method of mine-type all-steel radial truck tire tread rubber, which comprises the following process steps: (1) masticating natural rubber, styrene-butadiene rubber and peptizer in a mixing chamber, and then adding charcoal black, silica, silane coupling agent, zinc oxide, stearic acid, plasticizer and anti-crack resin, continue mixing, then add carbon black for mixing, and finally inject aromatic oil for mixing, and carry out mixing after mixing Glue removal to obtain one section of masterbatch; (2) cooling one section of masterbatch to normal temperature; (3) mixing one section of masterbatch with carbon black, antioxidant A, antioxidant B and microcrystalline wax in the mixing chamber, mixing After refining, carry out debinding to obtain the second-stage masterbatch; (4) cool the second-stage masterbatch to normal temperature; (5) mix the second-stage masterbatch and sulfur, accelerator and anti-scorch agent in the mixing chamber, mix After the rubber is discharged, the finished tread rubber is obtained. The invention can improve the crack resistance, fracture resistance, fatigue resistance and impact resistance of the radial tire tread.

Description

technical field [0001] The invention relates to a tire tread rubber, in particular to a mine-type all-steel load radial tire tread rubber and a preparation method thereof. Background technique [0002] With the continuous development of radial tires in my country, the compound formulations are gradually refined, and many all-steel radial tire compound formulas for different road surfaces and different uses have emerged. In the prior art, the raw rubber system in the tread formula of all-steel radial truck tires all uses natural rubber. In fact, this formula is still only suitable for ordinary road conditions, but the all-natural rubber formula is suitable for the pattern grooves required by mine roads. There are deficiencies in cracking resistance and fracture resistance, and the cracking resistance and fracture resistance of tire tread rubber in mining areas determine the final service life of such mine tires. Contents of the invention [0003] The purpose of the present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/06C08K13/02C08K3/04C08K3/36C08K3/22C08K5/09C08K5/54C08K3/06B29B7/00
Inventor 丁振洪周丽琰陈静
Owner JIANGSU GENERAL SCI TECH
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