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Tread rubber sizing material containing liquid phase dispersion white carbon black latex mixture and preparation method and application thereof

A liquid phase dispersion, silica technology, applied in the direction of rolling resistance optimization, road transportation emission reduction, etc., can solve the problems of increased tread hysteresis loss, decreased heat generation performance, and poor durability performance.

Active Publication Date: 2014-04-02
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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  • Tread rubber sizing material containing liquid phase dispersion white carbon black latex mixture and preparation method and application thereof
  • Tread rubber sizing material containing liquid phase dispersion white carbon black latex mixture and preparation method and application thereof
  • Tread rubber sizing material containing liquid phase dispersion white carbon black latex mixture 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] Component A

[0072] recipe

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] component B

[0074] recipe

Composition (%)

Concentrated natural latex

56.31

stabilizer

0.54

water

43.15

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

[0076] B. Mixing and stirring, slowly add component A in the high-speed stirring of component B, the mass ratio of component A and component B is 0.8:1, the stirring speed is 2000~6000rpm, and the stirring is for 10 minutes.

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

[0078] D. Press filter, press on the press, s...

Embodiment 2

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

[0086] A. Preparation of slurry

[0087] Component A

[0088] recipe

Composition (%)

Silica slurry (25% content)

85.47

[0089] water

13.33

Si69

0.66

stabilizer

0.410

Anti-settling agent

0.020

Dispersant

0.103

[0090] component B

[0091] recipe

Composition (%)

fresh glue

99.056

stabilizer

0.944

water

[0092] Each was stirred at 1500 to 2500 rpm for 2 to 5 minutes.

[0093] B. Mixing and stirring, slowly add component A in the high-speed stirring of component B, the mass ratio of component A and component B is 1:1, the stirring speed is 2000~6000rpm, and the stirring is for 10 minutes.

[0094] C. Slowly add 0.3kg of glacial acetic acid to the mixture, and instantly solidify.

[0095] D. Press filter, press on the press, sq...

Embodiment 3~6

[0102] Tread rubber compound containing liquid phase dispersed silica latex mixture This compound comprises the following components in parts by weight, wherein the comparative example is formed by mixing natural rubber and carbon black, and Examples 3 to 6 are The liquid-phase dispersed silica latex mixture (indicated by LNSC in the table) prepared in Example 1 or Example 2 is mixed with or without natural rubber and carbon black.

[0103]

[0104]

[0105] The tread rubber compound containing the liquid phase dispersed silica latex mixture of the above-mentioned embodiments 3 to 6 is prepared by kneading in the following manner:

[0106] (1) Plasticizing section

[0107]Add liquid-phase dispersed white carbon black 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 open the feeding door to exhaust the rotor speed for 40 seconds Pr...

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Abstract

The invention relates to the production field of tire rubber sizing materials, in particular to a tread rubber sizing material and a preparation method and an application of the tread rubber sizing material. The tread rubber sizing material containing liquid phase dispersion white carbon black latex mixture is prepared by plastifying and mixing the following components by weight: 50-200 parts of the liquid phase dispersion white carbon black latex mixture, 0-80 parts of natural rubber, 0-60 parts of carbon black, 1.0-3.0 parts of stearic acid, 4.0-6.0 parts of zinc oxide, 1.0-2.0 parts of microcrystalline wax, 0.80-1.20 parts of antiager RD, 1.0-3.0 parts of antiager 4020, 1.0-2.0 parts of oil charging sulfur, 1.2-2.0 parts of vulkacit NS and 0.80-1.2 parts of vulcanized agent DTDM. The tread rubber sizing material uses the white carbon black to completely or partially replace carbon black to reduce rolling resistance of tires and improve anti-slippery and wear-resisting properties 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 tread compound compound and a preparation method and application thereof. 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 (average molecular weight is about 700,000), in traditional dry mixing, the natural rubber must first be masticated (the molecular weight is reduced by mechanical force and high temperature degradation) and then added during the mechanical shearing process. The required carbon black, silica and other activators, antioxidants, vulcanizing agents. In this process, the macromolecules of natural rubber are seriously damaged, so that the strong abrasion performance is reduced. To compensate for the decrease in strength and wear. Designers traditionally use hard carbon black with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00
CPCY02T10/86
Inventor 楼齐淼徐新建洪佳金振涣
Owner ZHONGCE RUBBER GRP CO LTD
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