Liquid-phase dispersion white carbon black latex mixture contained mine tire tread rubber compound and preparation method and application thereof

A liquid phase dispersion and white carbon black technology, which is applied in special tires, tire parts, transportation and packaging, etc., can solve the problems of heat generation performance decline, tread hysteresis loss increase, durability deterioration and other problems

Active Publication Date: 2012-12-05
ZHONGCE RUBBER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, the use of carbon black with a high specific surface area in pursuit of wear in the tread of all-steel truck tires will inevitably increase the hysteresis loss of the tread, reduce the heat generation performance, and deteriorate the durability performance.

Method used

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  • Liquid-phase dispersion white carbon black latex mixture contained mine tire tread rubber compound and preparation method and application thereof
  • Liquid-phase dispersion white carbon black latex mixture contained mine tire tread rubber compound and preparation method and application thereof
  • Liquid-phase dispersion white carbon black latex mixture contained mine tire tread rubber compound and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Centrifugal concentration of natural rubber latex and silica slurry

[0070] A. Preparation of slurry

[0071] A component

[0072] formula composition(%) Silica slurry (25% content) 85.47 water 13.33 Si69 0.66 stabilizer 0.410 Anti-settling agent 0.020 Dispersant 0.103

[0073] B component

[0074] formula composition(%) Concentrated Natural Rubber Latex 56.31 stabilizer 0.54 water 43.15

[0075] Each was stirred at 1500~2500rpm for 2~5 minutes.

[0076] B. Mix and stir, slowly add component A to component B while stirring at a high speed, the mass ratio of component A to component B is 0.8:1, the stirring speed is 2000~6000rpm, and stir for 10 minutes.

[0077] C. Slowly add 0.3kg of glacial acetic acid to the mixture and solidify instantly.

[0078] D. Press filtration, press on the press, squeeze out part of the liquid, and recycle.

[0079] E. Rolling, rollin...

Embodiment 2

[0085] Using fresh glue and silica paste collected directly from rubber trees

[0086] A. Preparation of slurry

[0087] A component

[0088] formula composition(%) Silica slurry (25% content) 85.47 water 13.33 Si69 0.66 stabilizer 0.410 Anti-settling agent 0.020 Dispersant 0.103

[0089] B component

[0090] formula composition(%) fresh glue 99.056 stabilizer 0.944 water

[0091] Each was stirred at 1500~2500rpm for 2~5 minutes.

[0092] B. Mix and stir, slowly add component A to component B while stirring at a high speed, the mass ratio of component A to component B is 1:1, the stirring speed is 2000~6000rpm, and stir for 10 minutes.

[0093] C. Slowly add 0.3kg of glacial acetic acid to the mixture and solidify instantly.

[0094] D. Press filtration, press on the press, squeeze out part of the liquid, and recycle.

[0095] E. Rolling, rolling 3 to 5 times on a rubber...

Embodiment 3~5

[0101] Containing the mine tire tread rubber material of the liquid-phase dispersed silica latex mixture, the rubber material includes the components in the following table in parts by weight, wherein the comparative example is formed by mixing natural rubber and carbon black, and the examples 3~ 5 is obtained by mixing the liquid-phase dispersed silica latex mixture (represented by LNSC in the table) prepared in Example 1 or Example 2 with or without adding natural rubber and carbon black.

[0102]

[0103]

[0104] The mining tire tread rubber compound containing the liquid-phase dispersed silica latex mixture of the above-mentioned embodiments 3 ~ 5 is prepared by mixing according to the following method:

[0105] (1) Plasticizing section

[0106] Add liquid-phase dispersed silica latex mixture, stearic acid, zinc oxide, microcrystalline wax, anti-aging agent RD and anti-aging agent 4020, the rotor speed is 45rpm, press the lump and keep it at 140°C, lift the lump and o...

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Abstract

The invention relates to the field of production of tire rubber compounds, in particular to a mine tire tread rubber compound and a preparation method and the application thereof. The liquid-phase dispersion white carbon black latex mixture contained mine tire tread rubber compound is prepared by plasticating and mixing, by weight, 50-200 parts of liquid-phase dispersion white carbon black latex mixture, 0-80 parts of natural rubber, 20-40 parts of carbon black, 2.0-8.0 parts of rubber assistant R50, 1.0-3.0 parts of stearic acid, 0-6.0 parts of zinc oxide, 1.0-2.0 parts of microcrystalline wax, 0.80-1.20 parts of antiagerRD, 1.0-3.0 parts of antiager4020, 1.0-2.0 parts of oil filled sulfur, 1.5-2.0 parts of vulcanization accelerator and 0.10-0.20 part of anti-coking agent. White carbon black is adopted to totally replace or most replace carbon black to lower rolling resistance of tires and improve wet-skid resistance and abrasive resistance to produce energy-saving and environment-friendly tires.

Description

technical field [0001] The invention relates to the field of tire rubber compound production, in particular to a mining tire tread rubber compound and its preparation method and application. Background technique [0002] Natural rubber is widely used in tire industry and rubber industry because of its excellent physical and mechanical properties. Due to the extremely high molecular weight of natural rubber (the average molecular weight is about 700,000), using traditional dry mixing, the natural rubber must first be masticated (by mechanical force and high temperature degradation to reduce the molecular weight) and then added in the mechanical shearing process. Required carbon black, white carbon black and other activators, antioxidants, vulcanizing agents. In this process, the macromolecules of natural rubber are severely damaged, so that the strong wear performance decreases. To make up for the decline in strength and wear. Designers traditionally use a large number of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L7/02C08K13/06C08K9/06C08K3/36C08K3/04C08K5/09C08K3/22C08K3/06B60C1/00B29B7/00
CPCY02T10/862Y02T10/86
Inventor 楼齐淼徐新建洪佳金振涣
Owner ZHONGCE RUBBER GRP CO LTD
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