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Method for preventing packing in rubber blend from migration

A technology of rubber blends and rubber mixtures, which is applied in the field of production technology to improve the performance of rubber mixtures, and can solve problems such as unfavorable performance of the airtight layer

Inactive Publication Date: 2015-02-18
EVE RUBBER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In a rubber mixture composed of different rubbers, carbon black has different interaction strengths with each component rubber. During the parking process of the mixed rubber, it always exists from the rubber with weak interaction to the rubber with strong interaction. The trend of migration in the rubber phase. The TEM test results in the Inner Liner Compound, an internal report of the Yiweiyi Rubber Research Institute, show that in the rubber mixture composed of halogenated butyl rubber and natural rubber, the carbon black is always It will migrate from the halogenated butyl rubber to the natural rubber phase and finally stabilize in the natural rubber phase, which is detrimental to the performance of the inner liner

Method used

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  • Method for preventing packing in rubber blend from migration
  • Method for preventing packing in rubber blend from migration
  • Method for preventing packing in rubber blend from migration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Polar, weakly polar and non-polar rubbers only aim at the relative strength of polarity between different component rubbers in a certain rubber blend. For BIIR2222 and STR20, STR20 is a non-polar rubber, and BIIR2222 For weakly polar rubber.

[0074] Add 100 parts of BIIR2222 and 60 parts of N660 into the internal mixer for one-stage mixing, the mixing temperature is 160°C, and the mixing time is 5 minutes; add 100 parts of STR20 and 60 parts of N660 into the internal mixer for one-stage mixing, mixing The mixing temperature is 160°C, the mixing time is 5 minutes, the speed of the internal mixer is 60 rpm, the rubber is discharged after mixing evenly, and after parking for 4 hours; 120 parts of BIIR2222 masterbatch, 40 parts of STR20 masterbatch, 18 parts Add calcium carbonate, 0.8 parts of stearic acid, 6 parts of naphthenic oil, 12 parts of hydrocarbon resin mixture, 4 parts of C5 petroleum resin, and 2 parts of octyl phenolic tackifying resin into the internal mixer ...

Embodiment 2

[0100] Polar, weakly polar and non-polar rubbers only aim at the relative strength of polarity between different component rubbers in a certain rubber blend. For BR9000 and SBR1500, BR9000 is a non-polar rubber, and SBR1500 For weakly polar rubber.

[0101] Add 100 parts of BR9000, 60 parts of N339 carbon black, and 3 parts of radiation sensitizer pentaerythritol triacrylate into the internal mixer for a period of mixing. The mixing temperature is 160 ° C, the mixing time is 5 minutes, and the speed of the internal mixer is 60 rpm, mix evenly and discharge glue; add 100 parts of SBR1500, 60 parts of N339 carbon black, and 3 parts of radiation sensitizer pentaerythritol triacrylate into the internal mixer for a stage of mixing, the mixing temperature is 160 ° C, The mixing time is 5 minutes; the speed of the internal mixer is 60 rpm, and the rubber is discharged after mixing evenly. After parking for 4 hours, 32 parts of BR9000 masterbatch, 128 parts of SBR1500 masterbatch, 3 p...

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Abstract

The invention relates to a method for improving the interaction of packing rubber, preventing packing in rubber blend from migration and maintaining the good initial dispersion state of packing. The method comprises the following steps: for rubber blend consisting of two-component or multi-component rubber, a reinforcing filling agent and other ingredients, firstly, mixing each rubber component with the reinforcing filling agent and any irradiation sensitizing agent respectively so as to prepare rubber master batch; subsequently mixing the rubber master batch of different rubber components with ingredients such as an anti-aging agent, a vulcanizing agent and oil so as to prepare a rubber compound; performing electronic irradiation treatment on the rubber compound; vulcanizing the rubber compound, so as to obtain the rubber.

Description

technical field [0001] The invention relates to the field of rubber mixture production, and in particular provides a method for enhancing the interaction between fillers and rubbers, hindering the migration of fillers, maintaining a good initial dispersion state of fillers in a rubber matrix, and improving the performance of rubber mixtures. Background technique [0002] With the in-depth research on the interaction between fillers and rubber, especially the publication of M.-J.Wang, Rubber chem.Techno’s theory on the interaction between fillers and polymers, fillers and fillers, it is an important step for electronic radiation pre-vulcanization technology in the field of rubber The application in provides sufficient theoretical support. [0003] Patent CN101318384 is a radial tire inner liner part and its preparation process, through electronic irradiation treatment of the inner liner part, the Green strength, adhesive strength, structural dimensional stability and other pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/28C08J3/24C08J3/22C08L23/28C08L7/00C08L9/06C08L9/00C08K13/02C08K3/04B29B7/28B29C35/08
Inventor 张琳王玉海刘震王梦蛟
Owner EVE RUBBER RES INST
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