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Base glue cushion sizing material containing liquid-phase disperse white carbex mixture and preparation method and application thereof

A liquid-phase dispersion, white carbon black technology, applied in vehicle parts, tire parts, transportation and packaging, etc., can solve problems such as poor durability performance, decreased heat generation performance, and increased tread hysteresis loss.

Active Publication Date: 2014-07-02
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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  • Base glue cushion sizing material containing liquid-phase disperse white carbex mixture and preparation method and application thereof
  • Base glue cushion sizing material containing liquid-phase disperse white carbex mixture and preparation method and application thereof
  • Base glue cushion sizing material containing liquid-phase disperse white carbex mixture and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Centrifugal concentration of natural rubber latex and silica slurry

[0069] A. Preparation of slurry

[0070] A component

[0071] 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

[0072] B component

[0073] formula

Composition (%)

Concentrated Natural Rubber Latex

56.31

stabilizer

0.54

water

43.15

[0074] Each was stirred at 1500~2500rpm for 2~5 minutes.

[0075] 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.

[0076] C. Slowly add 0.3kg of glacial acetic acid to the mixture and solidify instantly.

[0077] D. Press filtration, press on the press, squeeze out...

Embodiment 2

[0084] Using fresh glue and silica paste collected directly from rubber trees

[0085] A. Preparation of slurry

[0086] A component

[0087] 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

[0088] B component

[0089] formula

Composition (%)

fresh glue

99.056

stabilizer

0.944

water

[0090] Each was stirred at 1500~2500rpm for 2~5 minutes.

[0091] 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.

[0092] C. Slowly add 0.3kg of glacial acetic acid to the mixture and solidify instantly.

[0093] D. Press filtration, press on the press, squeeze out part of the liquid, and rec...

Embodiment 3~5

[0100] The base rubber compound containing the liquid-phase dispersed silica latex mixture comprises the components in the following table in parts by weight, wherein the comparison example is formed by mixing natural rubber and carbon black, and examples 3 to 5 are formed by mixing natural rubber and carbon black. The liquid-phase dispersed silica latex mixture (represented by LNSC in the table) prepared in Example 1 or Example 2 was mixed with or without adding natural rubber and carbon black.

[0101]

[0102] The base rubber compound containing the liquid-phase dispersed silica latex mixture of the above-mentioned embodiments 3 ~ 6 is prepared by mixing according to the following method:

[0103] (1) Plasticizing section

[0104]Add liquid-phase dispersed white carbon black latex mixture, rubber peptizer WP, stearic acid, nano-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, l...

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Abstract

The invention relates to the field of a tire rubber sizing material, and in particular relates to a base glue sizing material and a preparation method and application of the base glue sizing material. The base glue sizing material containing liquid-phase disperse white carbex mixture is prepared by plasticating and mixing the following components by weight of 50-100 parts of the liquid-phase disperse white carbex mixture, 0-80 parts of nature rubber, 0-40 parts of carbon black, 1.0-3.0 parts of rubber peptizer WP, 0.80-1.50 parts of stearic acid, 3.0-4.0 parts of nano zinc oxide, 1.0-3.0 parts of antiager 4020, 0.80-1.5 parts of microcrystalline wax, 0.30-0.80 parts of antiager RD, 2.0-3.0 parts of infusible sulphur IS 7020, 1.5-2.5 parts of vulcanization accelerator NS, 0.80-1.50 parts of antifatigue G108, 0.30-0.80 parts of hardness increasing reinforcing agent 9010 and 0.10-0.30 parts of accelerator D. The base glue sizing material adopts the white carbon black to completely or partially replace carbon black to reduce rolling resistance of a tire, improve anti-slippery and wear-resisting properties and 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 base 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 hard carbon b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/02C08K13/02C08K3/36C08K3/04C08K3/22C08K5/09C08J3/24B29B7/28B29C35/02B60C1/00
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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