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Rubber master batch and preparation method thereof

A masterbatch and rubber technology, applied in the field of rubber additives, can solve the problems of high mixing temperature, slow dispersion speed, long mixing time, etc., and achieve the effect of low mixing temperature, no risk of explosion, and short mixing time

Active Publication Date: 2013-08-21
QINGDAO LINK OIL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, an object of the present invention is to propose a kind of rubber masterbatch and preparation method thereof, this masterbatch is used as rubber vulcanizing agent, can solve the long mixing time required in the above-mentioned rubber vulcanization process, the high mixing temperature and the The problem of slow dispersion

Method used

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  • Rubber master batch and preparation method thereof
  • Rubber master batch and preparation method thereof
  • Rubber master batch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add sulfur powder into the mixer and stir. While stirring, spray naphthenic oil into the mixer through the upper oil hole according to the weight required by the formula. The temperature is 60°C, the mass ratio of sulfur powder to naphthenic oil is 9:1, and stir for 20 minutes to get Mix in sulfur powder.

[0024] Add the mixed sulfur powder into the internal mixer, and add the dispersant fatty acid zinc and natural rubber (Nitrite Reductase, NR). The mass ratio of the mixed sulfur powder to the dispersant is 20:1; the mass ratio of the dispersant to NR is 1: 5. Mix for 15 minutes. After the sulfur powder, dispersant, and NR are all uniformly dispersed, discharge the material. The discharge temperature is 40-60°C to obtain the masterbatch.

[0025] Heat the extruder to 50°C, add the masterbatch into the extruder, adjust the feeding, extrusion, and cutter speed of the extruder so that the length of the cut particles is 3mm-5mm, and the rubber masterbatch S-80 is obtaine...

Embodiment 2

[0027] Add sulfur powder into the mixer and stir. While stirring, spray spindle oil into the mixer according to the weight required by the formula through the upper oil hole. The temperature is 40°C, the mass ratio of sulfur powder to spindle oil is 13:1, and stir for 40 minutes to obtain mixed sulfur. pink.

[0028] Add the mixed sulfur powder into the internal mixer, and add the dispersant PETS and natural rubber (Nitrite Reductase, NR). The mass ratio of the mixed sulfur powder to the dispersant is 30:1; the mass ratio of the dispersant to NR is 1:4 . Mix for 30 minutes. After the sulfur powder, dispersant, and NR are all uniformly dispersed, discharge the material. The discharge temperature is 80°C to obtain the masterbatch.

[0029] Heat the extruder to 40-60°C, add the masterbatch into the extruder, adjust the feeding, extrusion, and cutter speed of the extruder so that the length of the cut particles is 3mm-5mm, and the rubber masterbatch S-80 is obtained .

Embodiment 3

[0031] Add sulfur powder into the mixer and stir. While stirring, spray transformer oil into the mixer through the upper oil hole according to the weight required by the formula. The temperature is 50°C, the mass ratio of sulfur powder to transformer oil is 11:1, and stir for 30 minutes to obtain mixed sulfur. pink.

[0032] Add the mixed sulfur powder into the internal mixer, and add the dispersant paraffin and natural rubber (Nitrite Reductase, NR). The mass ratio of the mixed sulfur powder to the dispersant is 25:1; the mass ratio of the dispersant to NR is 1:2 . Mix for 21 minutes. After the sulfur powder, dispersant, and NR are all uniformly dispersed, discharge the material. The discharge temperature is 70°C to obtain the masterbatch.

[0033] Heat the extruder to 40-60°C, add the masterbatch into the extruder, adjust the feeding, extrusion, and cutter speed of the extruder so that the length of the cut particles is 3mm-5mm, and the rubber masterbatch S-80 is obtained ...

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Abstract

The invention relates to rubber master batch which comprises sulfur powder, filling oil, a dispersant and natural rubber NR. The mass ratio of the sulfur powder to the filling oil is (9-13):1. The mixture of the sulfur powder and the filling oil is mixed sulfur powder. The mass ratio of the mixed sulfur powder to the dispersant is (20-30):1. The mass ratio of the dispersant to the NR is 1: (2-5). The master batch prepared by the invention can be used as a rubber vulcanizer, and is quick in mixing and dispersing, short in mixing time and low in mixing temperature.

Description

technical field [0001] The invention belongs to the field of rubber additives, in particular to a rubber masterbatch and a preparation method thereof. Background technique [0002] In the existing rubber production process, sulfur powder is usually used to vulcanize rubber, but the mixing time required for sulfur powder vulcanization is long, the mixing temperature is high, there is a risk of burning the rubber, and the mixing and dispersion speed is slow, which cannot meet the requirements of modern rubber mixing. Requirements for the environment and mixing process. Contents of the invention [0003] In view of this, an object of the present invention is to propose a kind of rubber masterbatch and preparation method thereof, this masterbatch is used as rubber vulcanizing agent, can solve the long mixing time required in the above-mentioned rubber vulcanization process, the high mixing temperature and the The problem of slow dispersion. [0004] The technical solution is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08K13/02C08K3/06C08K5/01C08K5/098C08K5/103C08J3/22C08L23/16
Inventor 傅秀成
Owner QINGDAO LINK OIL PROD
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