Preparation method of olefin rubber/filler blend vulcanized rubber

A technology of olefinic and vulcanized rubber, which is applied in the field of preparation of olefinic rubber and olefinic rubber/filler blended vulcanized rubber, which can solve the problems of short storage time of rubber latex, short storage time of solid rubber, easy deterioration and precipitation, etc. , to achieve the effect of excellent comprehensive performance of the product, improvement of physical and mechanical properties, and short drying time
CN106674631AActive Publication Date: 2017-05-17SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2017-05-17

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Abstract

The invention discloses a preparation method of olefin rubber / filler blend vulcanized rubber. The method comprises the following steps: preparing a filler predispersion solution; plasticizing unvulcanized natural rubber by a rubber Banbury mixer, mixing with styrene-butadiene rubber and cis-1,4-polybutadiene rubber, increasing the temperature of the Banbury mixer to 110-160 DEG C, adding the filler predispersion solution into the rubber Banbury mixer, compounding, evaporating to remove water, and drying with hot air to obtain an olefin rubber / filler mixture; adding zinc oxide, stearic acid, a vulcanizing agent, an accelerator and an anti-aging agent into a rubber open mill or Banbury mixer, compounding uniformly, discharging, and standing to obtain the olefin rubber / filler compounded rubber; and vulcanizing the olefin rubber / filler compounded rubber on a flat vulcanizing machine to obtain the olefin rubber / filler blend vulcanized rubber. The method has the advantages of simple technique, no solvent pollution and no flying dust, is green and environment-friendly, and can be widely used for mixing multiple fillers and rubber.
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Description

technical field

[0001] The invention relates to olefin rubber, in particular to a preparation method of olefin rubber / filler blended vulcanized rubber, which belongs to the technical field of processing and modification of rubber composite materials. Background technique

[0002] The traditional rubber mixing method adopts the mechanical blending method. The main problem of this method is that fillers such as carbon black and white carbon black are relatively flying during the rubber mixing process, which is easy to pollute the environment and equipment. In addition, the dispersion state of a large amount of fillers in the rubber matrix is ​​not good, resulting in poor or unstable mechanical properties of the blend. During the mixing process, the filling amount of the filler is too much, which will cause serious heat generation in the rubber mixing process and easily cause gelation.

[0003] The emulsion co-precipitation method is to mix the filler pre-dispersion liquid wit...

Claims

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