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Application of continuously prepared rubber master batch to car tire inner liner rubber

A technology of rubber masterbatch and car tires, which is applied in the direction of special tires, vehicle parts, tire parts, etc., can solve the problems of reducing tire rolling resistance, reducing mixing steps, and not easy to disperse, so as to reduce driving rolling resistance, Reduce the mixing steps and solve the effect that is not easy to disperse

Inactive Publication Date: 2015-02-11
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 car tire innerliner and tire. Compared with traditional dry mixing process and innerliner, this method improves the filler in rubber The dispersion in the material reduces the mixing steps and solves the problem that the filler is not easy to disperse during mixing. The innerliner adhesive prepared by this method is very superior in filler dispersion and mechanical fatigue resistance. The tire rubber prepared by this method After the sealant is applied to the tire, the performance of the finished product can be further improved under the premise of ensuring the basic safety performance of the tire. Due to the increase in the fatigue resistance of the innerliner compound, the airtightness and service life of the tire during driving can be further improved. Thus indirectly reducing the rolling resistance of the tires and reducing fuel consumption

Method used

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  • Application of continuously prepared rubber master batch to car tire inner liner rubber
  • Application of continuously prepared rubber master batch to car tire inner liner rubber
  • Application of continuously prepared rubber master batch to car tire inner liner rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Add 60 parts of carbon black, 8 parts of naphthenic oil, 2 parts of antioxidant 264, 1 part of stearic acid, 2 parts of octyl phenolic tackifying resin, and 7 parts of hydrocarbon resin mixture to 90 parts of bromobutyl rubber and 10 parts Parts of natural rubber in n-hexane solution were mixed, continuously poured into a coagulator for coagulation, and then desolventized and dried to obtain masterbatch 1.

[0063] Add masterbatch 1 to the internal mixer and mix evenly, add 4 parts of zinc oxide, 0.7 parts of accelerator NS, and 0.5 parts of sulfur, and then mix. After being vulcanized to positive vulcanization by a flat vulcanizer at 165°C, the vulcanizate 1 was prepared in a continuous manner. Tire 195 / 60R14 was produced with continuous preparation of innerliner compound 1.

Embodiment 2

[0067] Add 60 parts of white carbon black, 4.8 parts of silane coupling agent, 8 parts of naphthenic oil, 2 parts of antioxidant 264, 1 part of stearic acid, 2 parts of octyl phenolic tackifying resin, and 7 parts of hydrocarbon resin mixture to 90 Parts of bromobutyl rubber and 10 parts of natural rubber in n-hexane solution were mixed, continuously poured into the coagulator for coagulation, and then desolventized and dried to obtain masterbatch 1.

[0068] Add masterbatch 1 to the internal mixer and mix evenly, then add 4 parts of zinc oxide, 0.7 parts of accelerator NS, 1 part of accelerator DPG, and 0.5 parts of sulfur, and then mix. After the rubber was parked for 8 hours, it was vulcanized to positive vulcanization with a flat vulcanizer at 165°C, and then vulcanized rubber 2 was prepared in a continuous manner. Tire 195 / 60R14 was produced with continuous preparation of innerliner compound 2.

[0069] Table 4 Test performance of dry and continuous preparation of inner ...

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Abstract

The invention relates to application of continuously prepared rubber master batch to car tire inner liner rubber. The application comprises the following steps: a) adding fillers in rubber solution, evenly mixing and dispersing the mixture, injecting the mixture into a coagulator for coagulation, removing solvent and conducting drying to obtain rubber master batch; b) adding the rubber master batch into an internal mixer, adding vulcanizing agent and accelerant and evenly mixing the mixture to obtain a car tire inner liner rubber compound; c) vulcanizing the car tire inner liner rubber compound under vulcanizing conditions to obtain car tire inner liner vulcanized rubber. The application further comprises the step of adding additives, wherein the additives are added in step a and / or step b; the additives comprise one or more of coupling agent, anti-aging agent, activating agent, oil, homogenizing agent and thickening agent; rubber in the rubber solution comprises one or more of butyl rubber, halogenated butyl rubber, chlorosulfonated polyethylene rubber, natural rubber, polyisoprene rubber, polystyrene-butadiene rubber and polybutadiene rubber.

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 inner liner rubber and the application of the inner liner rubber in car tires. Background technique [0002] In the preparation process of tire inner liner rubber, 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, etc., to mix powder Or liquid fillers and additives mixed into solid rubber. This process has long mixing time, high energy consumption, high dust and poor dispersion. The degree of dispersion of the filler directly determines the performance of the rubber compound. Poor dispersion of the filler will greatly affect the mechanical fatigue performance of the inner liner vulcanizate and the quality of the tire product. Big restrictions. [0003] In ...

Claims

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Application Information

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IPC IPC(8): C08L23/28C08L7/00C08K13/02C08K3/04C08K5/01C08K5/09C08K3/22C08K3/06C08K3/36B60C1/00
CPCC08L23/283B60C1/00C08L2205/035C08L2312/00C08L7/00C08L91/00C08L61/06C08K13/02C08K3/04C08K5/09C08K2003/2296C08K3/06C08K3/36
Inventor 王小菊刘震徐召来张琳
Owner EVE RUBBER RES INST