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Application of continuously prepared rubber masterbatch in steel cord adhesive

A technology of rubber masterbatch and steel cord, which is applied in the field of tire rubber compound production, can solve the problems of reducing mixing steps and not easy to disperse, and achieve the effects of reducing mixing steps, improving dispersion, and low heat generation

Active Publication Date: 2015-02-04
EVE RUBBER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention adopts the manufacturing process of continuous preparation of rubber masterbatch to prepare steel cord adhesive for truck tires and tires. Compared with traditional dry mixing process and steel cord adhesive, this method improves The dispersion degree of the filler in the rubber compound is improved, the mixing steps are reduced, and the problem that the addition of white carbon black is not easy to disperse is solved. The combined force and low heat generation are very superior. After the steel cord adhesive prepared by this method is applied to the tire, the performance of the finished product is improved and the rolling resistance of the tire is reduced.

Method used

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  • Application of continuously prepared rubber masterbatch in steel cord adhesive
  • Application of continuously prepared rubber masterbatch in steel cord adhesive
  • Application of continuously prepared rubber masterbatch in steel cord adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] 55 parts of N326 carbon black were added to 100 parts of 8% natural rubber in n-hexane solution, mixed, continuously injected into the coagulator for coagulation, and then desolventized and dried to obtain masterbatch A1.

[0054] Add masterbatch A1 to the internal mixer and mix evenly, add 8 parts of zinc oxide, 2 parts of anti-aging agent 4020, 0.2 parts of cobalt neodecanoate, 1.5 parts of resorcinol, remove the tablet after mixing, and park for 8 hours Then add the internal mixer and mix evenly, add 1.3 parts of accelerator DZ, 4.5 parts of adhesive glue RA, 4.5 parts of insoluble sulfur HD OT20, after mixing, pass the roller and release the film, and the mixed rubber is parked for 8 hours and then vulcanized with a flat plate After being vulcanized to positive vulcanization at 150°C, the vulcanizate 1 was prepared in a continuous manner.

[0055] Table 1 Comparative example 1 and embodiment 1 performance

[0056]

[0057]

[0058] As can be seen from Table 1...

Embodiment 2

[0062] Add 45 parts of N375 carbon black, 15 parts of white carbon black, and 1.5 parts of organosilane coupling agent to 100 parts of 8% natural rubber in n-hexane solution, after mixing, continuously inject into the coagulator for coagulation, and then desolventize and dry to obtain Masterbatch A2.

[0063] Add masterbatch A2 to the internal mixer and mix evenly, add 10 parts of zinc oxide, 2 parts of anti-aging agent 4020, 1.2 parts of cobalt neodecanoate, 1.5 parts of resorcinol, and then release the tablet after mixing, and park for 8 hours Then add the internal mixer and mix evenly, add 1.2 parts of accelerator NS, 5 parts of adhesive glue RA, and 5 parts of insoluble sulfur HD OT20. After mixing, pass the roller and lower the sheet. The mixed rubber is parked for 8 hours and vulcanized by a flat plate After being vulcanized to positive vulcanization at 150°C, the vulcanizate 2 was prepared in a continuous manner.

Embodiment 3

[0071] Add 46 parts of N347 carbon black, 10 parts of white carbon black, and 1 part of organosilane coupling agent to 100 parts of 8% natural rubber n-hexane solution, after mixing, continuously inject into the coagulator for coagulation, and then desolventize and dry to obtain Masterbatch A3.

[0072] Add masterbatch A3 to the internal mixer evenly, add 10 parts of zinc oxide, 2 parts of anti-aging agent 4020, 0.8 parts of cobalt neodecanoate, 1.5 parts of resorcinol. Add 1.1 parts of accelerator DZ, 5 parts of adhesive glue RA, 5 parts of insoluble sulfur HD OT20 after mixing evenly in the internal mixer. After vulcanization to normal vulcanization at 150°C, the vulcanizate is prepared continuously.

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Abstract

The invention relates to application of a continuously prepared rubber masterbatch in a steel cord adhesive. The application of the continuously prepared rubber masterbatch in the steel cord adhesive is completed by following steps: a, adding filler to a rubber solution, and optionally adding a coupling reagent, an anti-aging agent, a metal binder, an active agent and / or oil, mixing and dispersing uniformly, injecting into coagulator for coagulating, desolventizing and drying to obtain a rubber masterbatch; b, adding the rubber masterbatch in an internal mixer, then adding the anti-aging agent, the metal binder, the active agent and / or oil, mixing, adding a vulcanizing agent and an accelerant and uniformly mixing to obtain a steel cord adhesive-rubber compound; and c, vulcanizing the steel cord adhesive-rubber compound to obtain steel cord adhesive vulcanizate.

Description

technical field [0001] The invention relates to the field of tire rubber compound production, in particular to the preparation and application of a continuously prepared rubber masterbatch in steel cord adhesives. Background technique [0002] In the process of steel cord adhesive preparation, the traditional method of mixing the fillers and additives in the formula into the rubber is to use large-scale mixing equipment, such as internal mixers, kneaders and open rubber mixers, to mix the powder Fillers and additives in the form or liquid state are mixed into the solid rubber. However, this process has long mixing time, high energy consumption, more dust and poor dispersion. The degree of dispersion of the filler directly determines the adhesion between the steel cord adhesive and the metal. Therefore, the poor dispersion of the filler will greatly limit the mechanical properties of the steel cord binder vulcanizate and the quality of the tire product. [0003] In recent ye...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08K13/02C08K3/04C08K3/22C08K5/098C08K3/06C08K3/36C08K5/13C08J3/22
CPCC08J3/226C08J2307/00C08K3/04C08K3/06C08K3/22C08K3/36C08K5/09C08K5/098C08K5/13C08K13/02C08K2003/2296C08L2312/00C08L7/00
Inventor 周宏斌王宝金石超任衍峰
Owner EVE RUBBER RES INST
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