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Engineering tire tread rubber

A technology for engineering tires and tread rubber, applied in the field of tire tread rubber, can solve problems such as difficulty in dispersing short fibers, and achieve the effects of improving tear resistance and cutting resistance, improving cutting resistance and increasing service life.

Inactive Publication Date: 2010-06-16
HAOHUA SOUTH CHINAGUILIN RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chemically modified short fibers are added to the compound, which solves the problem of difficult dispersion of mechanically manufactured short fibers, and at the same time improves the tread rubber's cutting resistance, chipping resistance, hysteresis, heat generation and other dynamic properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 100 parts of natural rubber

[0029] N220 reinforcing carbon black 43 parts

[0030] Sulfron 3001 2 parts

[0031] Accelerator TBBS 1.2 parts

[0032] Anti-reversion agent SAR534 2 parts

[0033] Sulfur 1.5 parts

[0034] Antiager 4020 2 parts

[0035] Anti-aging agent RD 1.5 parts

[0036] Anti-aging agent DPPD 0.5 parts

[0037] Microcrystalline protective wax 1.5 parts

[0038] Aromatic hydrocarbon oil 6 parts

[0039] Plasticizer A 3 parts

[0040] Zinc oxide 5 parts

[0041] 2.5 parts of stearic acid

[0042] Anti-scorch agent CTP 0.3 parts.

[0043] Comparing formula 1:

[0044] Except that there is no component Sulfron 3001, others are the same as Example 1.

[0045] The above formula was mixed according to the method described in the summary of the invention respectively, and the resulting rubber compound was subjected to a performance test. The results are shown in Table 1:

[0046] Table 1:

[0047]

[0048]

Embodiment 2

[0050] Natural rubber 50 parts

[0051] 50 parts of styrene-butadiene rubber

[0052] N115 reinforcing carbon black 10 parts

[0053] N234 reinforcing carbon black 35 parts

[0054] White carbon black VN3 5 parts

[0055] Sulfron 3001 2.5 parts

[0056] Silane coupling agent Si69 1 part

[0057] Accelerator CBS 1.5 parts

[0058] Accelerator DPG 0.5 parts

[0059] Anti-reversion agent AKT73A 2 parts

[0060] 1 part sulfur

[0061]Antiager 4020 3 parts

[0062] Anti-aging agent RD 2 parts

[0063] Anti-aging agent DPPD 1 part

[0064] Microcrystalline protective wax 4 parts

[0065] 3 parts aromatic oil

[0066] 40MS 6 parts

[0067] Zinc oxide 3.5 parts

[0068] 1.5 parts of stearic acid

[0069] Anti-scorch agent NA 0.05 parts.

[0070] Comparing formula 2:

[0071] Except that there is no component Sulfron 3001, others are the same as Example 2.

[0072] Above-mentioned formula is mixed rubber by the method described in summary of the invention respectively...

Embodiment 3

[0077] 80 parts of natural rubber

[0078] 20 parts of styrene-butadiene rubber

[0079] N234 reinforcing carbon black 30 parts

[0080] The specific surface area is 110~200m 2 / kg of white carbon black 15 parts

[0081] Sulfron 3000 5 servings

[0082] Silane coupling agent Si69 3 parts

[0083] Accelerator MBS 0.5 part

[0084] Anti-reversion agent HTS 4 parts

[0085] Sulfur 2.8 parts

[0086] Antiaging agent 4020 1.5 parts

[0087] Anti-aging agent RD 1 part

[0088] Anti-aging agent DPPD 0.5 parts

[0089] Microcrystalline protective wax 3 parts

[0090] Aromatic hydrocarbon oil 10 parts

[0091] Carbon black dispersant T-78 0.5 parts

[0092] Zinc oxide 10 parts

[0093] 6 parts stearic acid

[0094] Anti-scorch agent NA 1 part.

[0095] Contrast formula 3:

[0096] Except that there is no component Sulfron 3000, others are the same as Example 3.

[0097] The above formula was mixed according to the method described in the summary of the invention respec...

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Abstract

The invention discloses an engineering tire tread rubber which comprises the following components in parts by weight: 100 parts of rubber, 20-50 parts of hard carbon black, 0-20 parts of white carbon black, 1-8 parts of chemically modified short fiber, 0-3 parts of silane coupling agent, 0.5-2 parts of accelerating agent, 0.2-8 parts of anti-reversion agent, 1-2.8 parts of sulfur, 3-6 parts of anti-aging agent, 0.5-4 parts of microcrystalline protective wax, 3-10 parts of aromatic hydrocarbon oil, 0.5-8 parts of processing aid, 1-10 parts of zinc oxide, 1-6 parts of stearic acid and 0.05-1 part of anti-scorching agent. Compared with the prior art, by introducing the chemically modified short fiber, the invention solves the problem of difficult dispersion of the short fiber in the tread rubber, improves the cutting, chunking and chipping resistant properties and the delaying and heating properties of the tread rubber, and improves the wear resistance, the fatigue resistance, the tearing resistance and the cutting resistance of the rubber, thereby prolonging the service life of the engineering tire.

Description

technical field [0001] The invention relates to tire tread rubber, in particular to engineering tire tread rubber. Background technique [0002] The operating environment of engineering tires is relatively harsh. Repeated contact between tires and sharp stones and roadside stones during use can easily cause the tread rubber to tear, collapse and fall off, resulting in a reduction in its service life. Existing methods to improve the cutting resistance and chipping resistance of tread rubber, such as changing fillers, optimizing vulcanization systems, or changing polymer types and their combination ratios, all sacrifice other important properties of tires, such as hysteresis and heat generation and flexibility etc. at the expense of. [0003] Elastomers reinforced with long fibers are well known, but such compounds are mainly limited to specific components of the tire, such as the carcass, belt or cap. Compounds with complex shapes, such as tread compounds and base compounds...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/06C08L77/10C08K13/02C08K3/04C08K3/36B60C1/00
Inventor 周胜何桂德卢南江
Owner HAOHUA SOUTH CHINAGUILIN RUBBER
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