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Rubber improving vulcanization system and preparation method and application of rubber

A vulcanization system and rubber technology, which is applied in the field of rubber materials for tires, can solve the problems of vulcanization and reversion of tire tread rubber, and achieve the effects of avoiding vulcanization and reversion, excellent performance, and prolonging durability and service life

Inactive Publication Date: 2017-04-26
GITI RADIAL TIRE (ANHUI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a rubber with an improved vulcanization system and its preparation method and application, which solves the technical problem of vulcanization and reversion of the tire tread rubber in the prior art under the condition of overvulcanization

Method used

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  • Rubber improving vulcanization system and preparation method and application of rubber
  • Rubber improving vulcanization system and preparation method and application of rubber
  • Rubber improving vulcanization system and preparation method and application of rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The rubber of the modified vulcanization system in this embodiment is made of the following raw materials in parts by weight: 100 parts of natural rubber, 0.1 part of peptizer, 53 parts of carbon black, 4 parts of zinc oxide, 2.3 parts of stearic acid, 4 parts of anti-aging agent, 0.9 parts of crystal wax, 2 parts of dispersant, 1.5 parts of sulfur, 1.2 parts of accelerator, 2.5 parts of bis-(γ-triethoxysilylpropyl) tetrasulfide, 0.2 parts of anti-scorch agent CTP.

[0031] The anti-aging agent is anti-aging agent 4020, anti-aging agent RD, and anti-aging agent DTPD according to 2 parts of anti-aging agent 4020, 1 part of anti-aging agent RD, and 1 part of anti-aging agent DTPD;

[0032] The peptizer is peptizer WP-10; the dispersant is dispersant FS-97; the carbon black is N115 carbon black; the accelerator is accelerator TBBS; elemental sulfur exists as S8 ring molecule, and the molar mass is 256.5g / mol , the molar mass of accelerator TBBS is 238.4g / mol, and the molar...

Embodiment 2

[0040] The rubber of the modified vulcanization system in this embodiment is made of the following raw materials in parts by weight: 100 parts of natural rubber, 0.1 part of peptizer, 53 parts of carbon black, 4 parts of zinc oxide, 2.3 parts of stearic acid, 4 parts of anti-aging agent, 0.9 parts of crystal wax, 2 parts of dispersant, 1.5 parts of sulfur, 1.5 parts of accelerator, 2.5 parts of bis-(γ-triethoxysilylpropyl) tetrasulfide, 0.2 parts of anti-scorch agent CTP.

[0041] The anti-aging agent is anti-aging agent 4020, anti-aging agent RD, and anti-aging agent DTPD according to 2 parts of anti-aging agent 4020, 1 part of anti-aging agent RD, and 1 part of anti-aging agent DTPD;

[0042] The peptizer is peptizer WP-10; the dispersant is dispersant FS-97; the carbon black is N115 carbon black; the accelerator is the combination of accelerator TBBS and accelerator CZ, and the molar ratio of accelerator TBBS to accelerator CZ The ratio is 2:1; elemental sulfur exists as S8 c...

Embodiment 3

[0074] The rubber of the modified vulcanization system in this embodiment is made of the following raw materials in parts by weight: 80 parts of natural rubber, 0.1 part of peptizer, 50 parts of carbon black, 3 parts of zinc oxide, 1.5 parts of stearic acid, 0.5-2 parts of sulfur, Accelerator 0.5 parts, bis-(γ-triethoxysilylpropyl) tetrasulfide 1.5 parts.

[0075] Wherein the peptizer is peptizer WP-10; the carbon black is N115 carbon black or SAF carbon black; the accelerator is accelerator TBBS;

[0076] This embodiment improves the preparation method of the rubber of vulcanization system, comprises the following steps:

[0077] S1. Weigh each raw material in parts by weight, add natural rubber, peptizer, zinc oxide, and stearic acid into the mixer, pressurize and knead the top bolt for 20SS, lift the bolt and add carbon black, and add the amount of carbon black It is 50% of the total mass of carbon black, then pressurize and knead with the top bolt for 25S, add the remaini...

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Abstract

The invention provides rubber improving a vulcanization system and a preparation method and application of the rubber. The rubber improving the vulcanization system is prepared from natural rubber, a peptizer, carbon black, zinc oxide, stearic acid, an antiager, microcrystalline wax, a dispersing agent, sulphur, an accelerant, bis-(gamma-triethoxysilylpropyl)-tetrasulfide and scorch retarder CTP. The improved balance vulcanization system is adopted, and the reversion phenomenon of traditional all natural rubber treads under the over cure condition is avoided. When the rubber is applied to tires, the tread rubber of vulcanized finished tires is uniform and stable in performance, the physical mechanical performance of the tires at the high temperature and after thermal ageing is remarkably improved, and the durability and the service life of the finished tires are prolonged advantageously.

Description

technical field [0001] The invention relates to the technical field of rubber materials for tires, and relates to a rubber with an improved vulcanization system, a preparation method and application thereof. Background technique [0002] Vulcanization is the last step in the tire manufacturing process and one of the key steps that has a significant impact on the performance of the finished tire. The tire is a thick product composed of a series of semi-finished parts and has a certain thickness, and the thickness of the crown, shoulder and rim of the tire is different. In general, the thickness of the tire crown should be smaller than the thickness of the shoulder and / or rim, and the minimum requirement of the vulcanization process is to ensure that all parts of the tire are vulcanized, which will inevitably lead to various parts of the tire. Due to the difference in size, the temperature rise curve during the entire vulcanization process is different. After the tire is vulc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L91/06C08K13/02C08K3/04C08K3/22C08K5/09C08K3/06C08K5/548B29B7/28B29B7/00
CPCC08L7/00B29B7/005B29B7/286C08L2201/08
Inventor 解云龙罗圣贤孙建敖祖炜马计郑念磊王嘉俊
Owner GITI RADIAL TIRE (ANHUI) CO LTD
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