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Application of continuously prepared rubber master batch in sedan tire rubber

A technology for rubber masterbatch and car tires, applied in special tires, vehicle parts, tire parts, etc., can solve the problems of difficult dispersion, reduce mixing steps, etc., to solve problems such as difficult dispersion, reduce mixing steps, and reduce labor. the effect of strength

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 carcass rubber and tires for car tires. Compared with traditional dry mixing process and carcass rubber, this method improves the content of filler in the rubber compound. The degree of dispersion in the middle reduces the mixing steps and solves the problem that the filler is not easy to disperse during mixing. The carcass rubber prepared by this method is excellent in filler dispersion, mechanical properties, heat generation, etc. The tire prepared by this method After the carcass rubber is applied to the tire, the performance of the finished product can improve the high-speed performance of the tire and reduce the rolling resistance of the tire on the premise of ensuring the basic safety performance of the tire.

Method used

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  • Application of continuously prepared rubber master batch in sedan tire rubber
  • Application of continuously prepared rubber master batch in sedan tire rubber
  • Application of continuously prepared rubber master batch in sedan tire rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Add 55 parts of carbon black to 80 parts of natural rubber and 20 parts of styrene-butadiene rubber in n-hexane, mix them, and pour them into the coagulator continuously for coagulation, then remove the solvent and dry to obtain masterbatch 1.

[0054] Add masterbatch 1 to the internal mixer evenly, add 3 parts of zinc oxide, 7 parts of naphthenic oil, 2 parts of stearic acid, and 1 part of anti-aging agent RD. After the kneading machine is uniform, add 1 part of accelerator NS and 3.5 parts of insoluble sulfur. After mixing, pass the roller and lower the sheet to obtain continuous mixed rubber 1. After the mixed rubber is parked for 8 hours, it is vulcanized with a flat vulcanizer at 165 ° C. After normal vulcanization, the vulcanizate 1 is prepared continuously. Tire 195 / 60R14 was prepared by continuous preparation of carcass compound 1.

Embodiment 2

[0058] Add 50 parts of white carbon black, 4 parts of silane coupling agent Si69, 7 parts of naphthenic oil, 3 parts of zinc oxide, 2 parts of stearic acid, and 1 part of antioxidant RD to the mixture of 80 parts of natural rubber and 20 parts of styrene-butadiene rubber. After being mixed with the n-hexane solution, it is continuously injected into the coagulator for coagulation, and then the solvent is removed and dried to obtain the masterbatch 2.

[0059] After adding the masterbatch 2 into the internal mixer evenly, add 1.2 parts of accelerator NS, 0.5 parts of accelerator DPG, and 3.5 parts of insoluble sulfur. After being vulcanized to normal vulcanization at 165°C, the continuous vulcanizate 2 was prepared. Tire 195 / 60R14 was produced by continuous preparation of carcass compound 2.

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Abstract

The invention relates to application of a continuously prepared rubber master batch in sedan tire rubber. The application comprises the following steps: a) adding a mixture of carbon black or white carbon black, oil and a coupling agent into a rubber solution, uniformly mixing and dispersing, filling into a flocculator for flocculation, subsequently removing the solvent, and drying, thereby obtaining the rubber master batch; b) adding the rubber master batch into an internal mixer, adding a vulcanization agent and an accelerant, and uniformly mixing, thereby obtaining a sedan tire rubber master batch; and c) vulcanizing the sedan tire rubber master batch under the vulcanization condition, thereby obtaining the vulcanized sedan tire rubber, wherein the steps further comprise adding an additive which is added in the step a) and / or the step b), and the additive is one or more of a coupling agent, an anti-aging agent and an activating agent.

Description

technical field [0001] The invention relates to the field of tire rubber compound production, in particular to the preparation of a continuously prepared rubber masterbatch in car tire carcass rubber and the application of the carcass rubber in car tires. Background technique [0002] In the tire carcass rubber preparation process, 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 powder or Liquid fillers and additives are mixed into solid rubber. This kind of process has long mixing time, high energy consumption, high dust and poor dispersion. The degree of dispersion of filler directly determines the interaction between filler and polymer. Therefore, poor dispersion of filler will affect the mechanical properties of carcass vulcanizate and the quality of tire products. are greatly restricted. [0003] In recent years, the appli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/06C08K13/02C08K3/04C08K3/22C08K5/01C08K5/09C08K3/06C08K3/36C08J3/22B60C1/00
CPCB60C1/00C08J3/246C08J2307/00C08J2409/06C08K2201/006C08L7/00C08L2205/03C08L9/06C08L91/00C08K13/02C08K3/04C08K2003/2296C08K5/09C08K5/3437C08K3/36
Inventor 张琳王玉海刘震
Owner EVE RUBBER RES INST
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