Application of continuously prepared rubber masterbatch in sedan tire tread rubber

A technology for rubber masterbatch and car tires, applied in special tires, vehicle parts, tire parts and other directions, can solve the problems of difficult dispersion, reduce tire rolling resistance, reduce mixing steps, etc., to solve difficult dispersion, reduce rolling resistance, reducing the effect of the mixing step

Inactive Publication Date: 2015-01-28
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 tread rubber and tires for car tires. Compared with traditional dry mixing process and tread rubber, this method improves the content of filler in rubber. Dispersion reduces the mixing steps and solves the problem that fillers are not easy to disperse during mixing. The tread rubber prepared by this method is excellent in filler dispersion, mechanical properties, wear resistance, and low heat generation. After the tire tread rubber is applied to the tire, its finished product performance improves the wear performance of the tire and reduces 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 masterbatch in sedan tire tread rubber
  • Application of continuously prepared rubber masterbatch in sedan tire tread rubber
  • Application of continuously prepared rubber masterbatch in sedan tire tread rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Add 75 parts of white carbon black, 6 parts of silane coupling agent Si69, 28 parts of aromatic oil and 2 parts of anti-aging agent 264 into the n-hexane solution of 70 parts of solution-polymerized styrene-butadiene rubber and 30 parts of butadiene rubber and mix them continuously. It was injected into the coagulator for coagulation, and then the solvent was removed and dried to obtain the masterbatch 1.

[0053] Add masterbatch 1 to the internal mixer evenly, add 3.5 parts of zinc oxide, 2 parts of stearic acid, 2 parts of anti-aging agent 4020, and 2 parts of protective wax. After the machine is uniform, add 2 parts of accelerator CZ, 2.1 parts of accelerator DPG, and 1.4 parts of sulfur, and after mixing, roll off the sheet, and the mixed rubber is parked for 8 hours. After vulcanization, the continuously prepared vulcanizate 1 was prepared. Tire 195 / 60R14 was prepared using continuous preparation of tread mix 1.

Embodiment 2

[0055] Add 75 parts of white carbon black, 6 parts of silane coupling agent Si69, 28 parts of aromatic oil, 3.5 parts of zinc oxide, 2 parts of stearic acid, 2 parts of anti-aging agent 264, 2 parts of anti-aging agent 4020, and 2 parts of protective wax into After mixing 70 parts of solution polystyrene-butadiene rubber and 30 parts of cis-butadiene rubber in n-hexane solution, they were continuously poured into the coagulator for coagulation, and then the solvent was removed and dried to obtain masterbatch 2.

[0056] After adding the masterbatch 2 into the internal mixer evenly, add 2 parts of accelerator CZ, 2.1 parts of accelerator DPG, and 1.4 parts of sulfur. After mixing, roll off the sheet and leave the mixed rubber for 8 hours. After being vulcanized to normal vulcanization at 165°C, the continuous vulcanizate 2 was prepared. Tire 195 / 60R14 was produced with continuous preparation of tread mix 2.

[0057] Table 4 Test performance of dry and continuous preparation of...

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Abstract

The invention relates to application of a continuously prepared rubber masterbatch in sedan tire tread rubber. The application comprises the following steps: a, adding white carbon black, a coupling agent, an anti-aging agent and oil into rubber solution, uniformly mixing and dispersing the raw materials, injecting the mixture into a coagulator to carry out coagulation, then desolvating and drying to obtain the rubber masterbatch; b, adding the rubber masterbatch into an internal mixer, adding a vulcanizing agent and an accelerant and uniformly mixing to obtain a sedan tire tread rubber masterbatch; and c, carrying out vulcanizing on the sedan tire tread rubber masterbatch to obtain the sedan tire tread rubber. The application also comprises the step of adding additives; the additives are added in the step a and/or the step b; and the additives are one or more of the coupling agent, the anti-aging agent, an active agent, the oil and other processing assistants, wherein the rubber is one or more of polybutadiene rubber, polyisoprene rubber and polystyrene-butadiene 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 tread rubber and the application of the tread rubber in car tires. Background technique [0002] In the tire tread 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 process has long mixing time, high energy consumption, high dust and poor dispersion. The degree of dispersion of the filler directly determines the interaction between the filler and the polymer, thereby affecting the wear resistance of the tire tread rubber. Therefore, poor dispersion of the filler will Make the mechanical properties of tread vulcanizate and tire product quality be very...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L9/00C08K13/02B60C1/00
CPCB60C1/0016C08J3/22C08L9/06C08L2205/02C08L2205/035C08L9/00C08L91/00C08L91/06C08K13/02C08K3/36C08K5/548C08K2003/2296C08K5/09C08K5/18C08K5/13C08K5/47C08K3/06Y02T10/86
Inventor 王小菊刘震王茂英
Owner EVE RUBBER RES INST
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