Rubber master batch continuous manufacturing method and rubber master batch prepared thereby

A technology of rubber masterbatch and manufacturing method, which is applied in the field of rubber, can solve the problems of long process, slow coagulation and drying speed, high energy consumption, etc., and achieve the effect of strong process adaptability

Active Publication Date: 2014-02-26
EVE RUBBER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process described in WO98/58985 is carried out in a device with 400/1200 revolutions per minute by a large-scale

Method used

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  • Rubber master batch continuous manufacturing method and rubber master batch prepared thereby
  • Rubber master batch continuous manufacturing method and rubber master batch prepared thereby

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0102] Add 56 parts of white carbon black, 5.6 parts of silane coupling agent Si69, and 3.5 parts of zinc oxide to 100 parts of 12% cis-polyisoprene in n-hexane solution, and its rubber / white carbon black / Si69 / n-hexane mixture After initial mixing with a blade mixer, the mixture is sprayed into a multi-elbow pipe through a nozzle to make the mixture collide with the pipe wall in the pipe to increase the dispersion of the filler. Finally, the mixture is continuously added to the grinder for fine dispersion to obtain a finely dispersed mixture, and then the mixture is continuously injected into the agglomerator through two inlets of the cylinder-cone agglomerator with four inlets under a pressure of 30 MPa, and at the same time Continuously inject nitrogen at a temperature of about 180°C from the other two inlets, and then continuously spray the resulting mixture into a drier filled with nitrogen at about 150°C. / Volatilize in the micro-droplets expanded by n-hexane to form des...

Embodiment 2

[0104] Add 56 parts of white carbon black, 5.6 parts of silane coupling agent Si69, and 3.5 parts of zinc oxide to 100 parts of 12% cis-polyisoprene in n-hexane solution, and its rubber / white carbon black / Si69 / n-hexane mixture After initial mixing with a blade mixer, the mixture is sprayed into a multi-elbow pipe through a nozzle to make the mixture collide with the pipe wall in the pipe to increase the dispersion of the filler. Then the mixture is continuously added to the grinder for fine dispersion to obtain the fine dispersion mixture, and then the mixture is continuously injected into the agglomerator through two inlets of the barrel-cone agglomerator with four inlets under a pressure of 30 MPa, and at the same time Water at a temperature of about 95°C was continuously injected from the other two inlets to coagulate the mixture. The coagulated and desolvated colloidal particles were filtered and dried in a vacuum dryer at a vacuum degree of -0.08 MPa for 20 minutes, and t...

Embodiment 3

[0106]Add 56 parts of white carbon black, 5.6 parts of silane coupling agent Si69, and 3.5 parts of zinc oxide to 100 parts of 12% cis-polyisoprene in n-hexane solution, and its rubber / white carbon black / Si69 / n-hexane mixture After initial mixing with a blade mixer, the mixture is sprayed into a multi-elbow pipe through a nozzle to make the mixture collide with the pipe wall in the pipe to increase the dispersion of the filler. Finally, the mixture is continuously added to the grinder for fine dispersion to obtain a finely dispersed mixture, and then the mixture is continuously injected into the agglomerator through two inlets of the barrel-cone agglomerator with four inlets under a pressure of 30 MPa, and at the same time Water at a temperature of about 95°C was continuously injected from the other two inlets to coagulate the mixture. The coagulated and desolvated rubber particles were filtered and then dried in a single-screw extruder for 3 minutes to obtain masterbatch 3. ...

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Abstract

The invention discloses a rubber master batch continuous manufacturing method and rubber master batch prepared thereby. The manufacturing method comprises the following steps: step (1) adding a filler into a rubber solution, stirring so as to form a rubber/filler/solvent mixture; step (2) carrying out a coagulation treatment for the rubber/filler/solvent mixture so as to obtain a mixture of rubber/filler complex and solvent; (3) removing the solvent and drying the mixture so as to obtain the rubber/filler master batch. The invention also relates to a master batch prepared by the method mentioned above and rubber products prepared from the master batch. Compared with a drying technology in a conventional wet mixing process, the manufacturing method does not have special requirements on rubber and the filler and has a wider application range; the production technology has the advantages of continuity, high efficiency, low energy consumption, and little manpower, so the method has a low cost; the mater batch prepared by the method has excellent properties of processing performance, physical and mechanical performances, and product quality.

Description

technical field [0001] The invention relates to the field of rubber, in particular to a continuous production method of rubber masterbatch and the rubber masterbatch prepared by the method. Background technique [0002] In a rubber / filler / additive / solvent system, the coacervation of rubber / filler / additive from solvent is an important step in the manufacture of rubber / filler / additive masterbatch. The process described in WO98 / 58985 is carried out in a device with 400 / 1200 revolutions per minute by a large-scale turbo dryer with blades. The coagulation and drying speed of this method is relatively slow, the process is long, and the energy consumption is high. The present invention relates to several high-speed mixing / coagulation methods, wherein the coagulation medium includes gas, especially high-temperature gas and liquid mixed with rubber / filler / additive mixture in a state of high-energy turbulence, due to the high-temperature effect of gas and the extremes of liquid medium...

Claims

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Application Information

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IPC IPC(8): B29B7/30B29B7/58C08J3/22C08L9/00B29B15/08
CPCB29B7/007B29B7/10B29B7/7495C08C1/075C08C1/14C08J3/12C08J3/212C08J2321/00C08J3/21C08J3/215C08J3/22C08L9/00
Inventor 王梦蛟宋建军戴德盈
Owner EVE RUBBER RES INST
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