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All-steel radial giant engineering tire sidewall filling rubber

A technology for engineering tires and fillers, which is applied in the field of sidewall fillers, can solve the problems of low modulus stress, low tensile strength, and inappropriateness, and achieve the effects of reducing dynamic heat generation, high filling amount, and delaying aging

Inactive Publication Date: 2014-08-13
HAOHUA SOUTH CHINAGUILIN RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the formula has low modulus of 300%, low tensile strength, and poor viscosity, so it is not suitable for all-steel radial giant OTR tires

Method used

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  • All-steel radial giant engineering tire sidewall filling rubber
  • All-steel radial giant engineering tire sidewall filling rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Carry out rubber mixing by each component specified in the following table 2, and concrete method comprises the following steps:

[0051] 1) Take each component by weight ratio, and set aside;

[0052] 2) Natural rubber, white carbon black, reinforcing carbon black, softening agent, resorcinol, zinc oxide, stearic acid, anti-aging agent (anti-aging agent BLE and anti-aging agent RD) that are taken by weighing are put into a rubber internal mixer, Mix at a speed of 50 r / min for 3 to 4 minutes at 160°C to obtain rubber compound A;

[0053] 3) Put the weighed vulcanizing agent (vulcanizing agent DTDM and ordinary sulfur S), accelerator and anti-scorch agent into the rubber internal mixer and mix it with compound rubber A, and mix it at 80°C at a speed of 20r / min for 3~ 5min to obtain the sidewall filler of the all-steel radial giant OTR tire.

[0054] The performance tests of the obtained rubber compounds are carried out, and the test results are listed in Table 2.

Embodiment 2

[0056] Carry out rubber mixing by each component specified in the following table 2, the preparation method of rubber material is the same as embodiment 1.

[0057] The performance tests of the obtained rubber compounds are carried out, and the test results are listed in Table 2.

Embodiment 3

[0059] Carry out rubber mixing by each component specified in the following table 2, the preparation method of rubber material is the same as embodiment 1.

[0060] The performance tests of the obtained rubber compounds are carried out, and the test results are listed in Table 2.

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Abstract

The invention discloses an all-steel radial giant engineering tire sidewall filling rubber which is composed of the following components in parts by weight: 100 parts of natural rubber, 10-25 parts of white carbon black, 20-50 parts of hard carbon black, 6-15 parts of softening agent, 2-4 parts of resorcinol, 6-15 parts of zinc oxide, 1-3 parts of stearic acid, 2-7 parts of anti-aging system, 1.3-3.5 parts of vulcanization system, 0.8-1.5 parts of accelerator and 0.1-0.5 part of anti-scorching agent. The sidewall filling rubber prepared according to the formula has the advantages of low heat generation, excellent bending resistance, moderate hardness and moderate stress at definite elongation, and can obtain favorable balance between Mooney viscosity and tire adhesiveness.

Description

technical field [0001] The invention relates to a sidewall filler used for the sidewall of an all-steel radial giant engineering tire, and belongs to the technical field of tire manufacturing. Background technique [0002] All-steel radial giant OTR tires are used in giant dump trucks or loaders, which have a large load capacity, large tire flexion load, and large sidewall deformation. [0003] In the prior art, all-steel radial giant OTR tires mainly use composite sidewalls, which include sidewall rubber, sidewall filling rubber and rim wear-resistant rubber. Among them, the sidewall rubber is used in the easily deformable area, which requires good flex resistance, low hardness, large elongation at break, and low modulus stress. Zikou wear-resistant rubber directly contacts the rim, which requires high hardness, high modulus stress and good wear resistance. Therefore, for the sidewall filler between the two, it is required to be able to play a good buffer and transition r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08K13/02C08K3/36C08K3/04C08K5/13C08K3/22C08K5/09
Inventor 林庆奇
Owner HAOHUA SOUTH CHINAGUILIN RUBBER
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