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Continuous manufacturing method for rubber masterbatch, rubber masterbatch prepared by using continuous manufacturing method and rubber product

A technology of rubber masterbatch and manufacturing method, which is applied in the rubber field, can solve the problems such as the limitation of varieties and content, the inability of the amount of filler to separate the agglomerate and water, and the difficulty of water treatment, so as to improve the physical and mechanical properties, the speed is fast, and the applicability wide range of effects

Active Publication Date: 2013-07-17
EVE RUBBER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This liquid-phase continuous mixing method for preparing rubber / filler masterbatch reduces the mixing process, mixing time, energy consumption and labor, but the type and content of fillers used in masterbatch preparation are limited
When the continuous method consists of continuous mixing and coagulation of latex and filler water slurry, when using highly hydrophilic fillers such as white carbon black, there will be more fillers in the water phase after coagulation, which increases the difficulty of water treatment, and the amount of fillers is too high or too high. Low level can not effectively separate the coagulation and water, and this method can not be directly used to prepare filler / rubber masterbatch from rubber solution and filler

Method used

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  • Continuous manufacturing method for rubber masterbatch, rubber masterbatch prepared by using continuous manufacturing method and rubber product
  • Continuous manufacturing method for rubber masterbatch, rubber masterbatch prepared by using continuous manufacturing method and rubber product

Examples

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Effect test

Embodiment 1

[0107] Add 60 parts of white carbon black and 6 parts of silane coupling agent Si69 to 100 parts of 8% cis-polyisoprene in n-hexane solution, and its rubber / white carbon black / Si69 / n-hexane mixture is shown in Table 3 After mixing in the primary mixing, fine mixing and fine mixing methods, it is continuously injected into the coagulator for coagulation, and then sprayed into the dryer to remove the solvent and dry to obtain the masterbatch 1.

[0108] After the masterbatch 1 is rolled evenly on the mill, add 3.5 parts of zinc oxide, 1 part of stearic acid, 1.5 parts of anti-aging agent RD, 2 parts of anti-aging agent 4020, 1.6 parts of anti-scorch agent, and then add 2 parts of accelerator CZ , 1 part of Accelerator D, 1.6 parts of sulfur, pass through the rollers, unload the sheet, and then vulcanize to positive vulcanization with a flat vulcanizer at 150°C after parking for 8 hours to obtain wet vulcanizate 1.

Embodiment 2

[0112] 78 parts of white carbon black, 6.4 parts of silane coupling agent Si69 and anti-aging agent 264 are added to 70 parts of solution-polymerized styrene-butadiene rubber and 30 parts of butadiene rubber in n-hexane solution, the rubber / white carbon black / Si69 / anti-aging agent 264 / n-hexane mixture is mixed according to the initial mixing, fine mixing and fine mixing methods shown in Table 3, and is continuously injected into the agglomerator for coagulation, and then sprayed into the dryer to remove the solvent and dry, and then further dried by a twin-screw extruder to obtain Masterbatch 2.

[0113] After wrapping the masterbatch 2 evenly on the mill, add 28 parts of high aromatic oil, 3.5 parts of zinc oxide, 2 parts of stearic acid, 2 parts of anti-aging agent 4020, 2 parts of paraffin wax, and then release the film after mixing, and park for 8 After one hour, add 1.3 parts of accelerator CZ, 0.3 parts of accelerator D, and 1.4 parts of sulfur to the open mill, pass the...

Embodiment 3

[0117] Add 78 parts of white carbon black, 6.4 parts of silane coupling agent Si69, 28 parts of high aromatic oil, 3.5 parts of zinc oxide, 2 parts of stearic acid, 2 parts of antioxidant 264 and 2 parts of paraffin to 70 parts of solution polystyrene butadiene rubber In the n-hexane solution of 30 parts of butadiene rubber, the rubber / white carbon black / additive / n-hexane mixture is mixed according to the initial mixing, fine mixing and fine mixing methods shown in Table 3, and then continuously injected into the coagulator to coagulate, and then Spray into a drier to remove the solvent and dry, and further dry through a twin-screw extruder to obtain masterbatch 3.

[0118] After wrapping the masterbatch 3 evenly on the open mill, add 1.3 parts of accelerator CZ, 0.3 parts of accelerator D, and 1.4 parts of sulfur, pass the roll, and release the sheet. After the mixed rubber is parked for 8 hours, it is vulcanized on a flat plate at 150 ° C. Machine vulcanization to positive v...

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Abstract

The invention relates to a continuous manufacturing method for rubber masterbatch, the rubber masterbatch prepared by using the continuous manufacturing method and a rubber product. The manufacturing method comprises the following steps: 1) adding a filling material into a rubber solution, carrying out stirring so as to form a rubber / filling material / solvent mixture and subjecting the rubber / filling material / solvent mixture to further fine dispersion and refined dispersion so as to improve the dispersion degree of the filling material in the rubber solution; 2) subjecting rubber and the filling material in the rubber / filling material / solvent mixture having undergone refined dispersion in step 1) to hetero-coagulation so as to obtain a mixture of a rubber / filling material compound and a solvent; and 3) removing the solvent and drying the mixture so as to obtain the rubber / filling material masterbatch. The invention further provides the masterbatch prepared by using the manufacturing method and the rubber product prepared from the masterbatch. Compared with a conventional wet rubber compounding technology, the invention has the following advantages: there are no special requirements on rubber and the filling material, the prepared masterbatch has a wide application scope, and dispersity of the filling material in a rubber compound is accordingly improved.

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 and rubber products prepared by the method. Background technique [0002] In the modern rubber industry, more than 99% of the rubber used to manufacture products contains fine particle powder fillers. On the one hand, their application is used as a reinforcing material for rubber, also known as a reinforcing agent, to improve the physical and mechanical properties of rubber such as tensile stress. , tensile strength, elongation at break, tear resistance, and improve the performance of rubber products, such as wear resistance, friction performance, dynamic damping (hysteresis) performance, stab resistance, etc.; on the other hand, it can Give rubber products some special functions, such as electrical conductivity and insulation properties, thermal conductivity and thermal insulation properties, radiation resistan...

Claims

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Application Information

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IPC IPC(8): B29B7/30B29B15/08B29B13/10B29B11/16C08L9/00C08L9/06
Inventor 王梦蛟宋建军戴德盈
Owner EVE RUBBER RES INST
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