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Method for preparing tread rubber through carbon black wet-process masterbatch together with white carbon black and application thereof

A wet masterbatch, silica technology, applied in special tires, tire parts, rolling resistance optimization, etc., can solve the problems of reducing filler/polymer interaction force, poor wear resistance of vulcanizate, etc. The effect of tire wet skid resistance, tire rolling resistance reduction, and performance improvement

Inactive Publication Date: 2016-01-13
EVE RUBBER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the carbon black wet-process masterbatch and silica wet-process masterbatch in these two patents are all made of latex. Since there are many non-adhesive components in the latex component, it is easy to adsorb to the surface of the filler and reduce the filler / polymer interaction. Force, resulting in poor wear resistance of vulcanized rubber

Method used

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  • Method for preparing tread rubber through carbon black wet-process masterbatch together with white carbon black and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] In the internal mixer, add 50 parts of IR70, 75 parts of carbon black masterbatch, 25 parts of white carbon black 165MP, and 2.5 parts of TESPT for mixing. The mixing temperature reaches above 140°C and keeps for 2 minutes, then add 2.5 parts of stearic acid , 4.5 parts of zinc oxide, 1.5 parts of protective wax, 1.5 parts of anti-aging agent RD, 2.0 parts of anti-aging agent, after mixing evenly, discharge glue, after parking for 4 hours, add 2.0 parts of accelerator CZ, 1.6 parts of ordinary sulfur, accelerator 0.5 parts of DPG, mixed evenly, then discharged, parked for 4 hours, vulcanized with a flat vulcanizer at 150°C to obtain tread rubber example 1.

Embodiment 2

[0070] In the internal mixer, add 70 parts of IR70, 45 parts of carbon black masterbatch, 20 parts of white carbon black 165MP, 15 parts of CSDPF2125, 2.5 parts of TESPT and knead. 2.5 parts of fatty acid, 4.5 parts of zinc oxide, 1.5 parts of protective wax, 1.5 parts of anti-aging agent RD, 2.0 parts of anti-aging agent, after mixing evenly, remove glue, after parking for 4 hours, add 2.0 parts of accelerator CZ, 1.6 parts of ordinary sulfur part, 0.5 part of accelerator DPG, after mixing evenly, discharge the rubber, and after parking for 4 hours, use a flat vulcanizer to vulcanize at 150°C to obtain tread rubber example 2.

[0071] Table 3 Performance comparison table

[0072]

[0073] The properties of the compound in Example 1 show that after using white carbon black together, the springback increases by 7 points, the temperature rise decreases by 10°C, the hysteresis loss decreases by 42%, and the wear resistance decreases slightly. The properties of the rubb...

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Abstract

The invention relates to a method for preparing a tread rubber material through wet-process mixing carbon black masterbatch together with white carbon black. The method includes the following steps that a, the wet-process mixing carbon black masterbatch and the white carbon black are added into an internal mixer; then additives including a coupling agent, an anti-ageing agent, an active agent, oil and one or more of other processing agents are added; afterwards, a vulcanizing agent and an accelerator are added to be evenly mixed and then a rubber compound of tread rubber is obtained; b, the rubber compound is vulcanized, so that vulcanized rubber of the tread rubber is obtained. By the adoption of the vulcanized rubber of the tread rubber, due to the fact that the white carbon black is used at the same time, the rolling resistance of tires is lowered on the premise that the abrasion resistance of the tires is guaranteed, and the wet-skid resistance of the tires is improved.

Description

technical field [0001] The invention relates to the field of tire rubber material production, in particular to a preparation method and application of a tread rubber material. Background technique [0002] Tread rubber filled with carbon black has good wear resistance, but high hysteresis loss and high rolling resistance, while silica can significantly reduce rolling resistance and improve wet skid resistance, but its wear resistance is worse than carbon black. Therefore, in the tire industry, carbon black / white carbon black is often used to balance various properties in order to manufacture tires with excellent comprehensive properties. Especially in today when people are paying more and more attention to the energy saving and safety of tires, this combined method has important value. [0003] Wet mixing technology is a technology that uniformly disperses fillers in rubber under liquid phase conditions to obtain filler / rubber masterbatch. Compared with traditional dry mix...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/00C08K13/02C08K3/04C08K3/36C08J3/22B60C1/00
CPCY02T10/86
Inventor 宋建军张红霞张秀彬
Owner EVE RUBBER RES INST
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