Method for preparing colored ethylene-propylene rubber

A technology of ethylene propylene rubber and color, which is applied in the field of preparation of colored ethylene propylene rubber, and can solve the problem of uneven dispersion of pigments

Active Publication Date: 2012-03-21
南通威福塑业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] EPDM rubber is mainly used in ordinary color sealing products. Since the particle size of the pigment is too small, if the mixing method and process are not correct during mixing, it is easy to cause uneven dispersion of the pigment.

Method used

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  • Method for preparing colored ethylene-propylene rubber
  • Method for preparing colored ethylene-propylene rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A preparation method of colored ethylene-propylene rubber, characterized in that the content ratio of each raw material component is as follows in parts by weight:

[0041] EPDM glue 200 parts

[0042] 5 parts of pigment

[0043] Anti-aging agent 2 parts

[0044] White carbon black 60 parts

[0045] 60 parts of paraffin oil

[0046] 2 parts sulfur

[0047] 80 parts of paraffin oil

[0048] Active agent 5 parts

[0049] Accelerator 2 parts

[0050] Dispersant 2 parts

[0051] Among them, the anti-aging agent is RD, the sulfur is S, the accelerator is TMTD, that is, tetramethylthiuram disulfide, the ester plasticizer is DOP, that is, o-dioctyl ester, the active agent is PEG4000, and the dispersant is WB212.

[0052] and includes the following steps:

[0053] The first step, pre-mixing: Pre-mixing raw rubber and pigments for 3 minutes;

[0054] The second step, synthetic rubber: the raw materials are synthesized into rubber through an internal mixer, the time is ...

Embodiment 2

[0058] A preparation method of colored ethylene-propylene rubber, characterized in that the content ratio of each raw material component is as follows in parts by weight:

[0059] EPDM rubber 150 parts

[0060] 3 parts of paint

[0061] Anti-aging agent 1 part

[0062] 40 parts of carbon black

[0063] 1 part sulfur

[0064] Accelerator 1 part

[0065] 6 parts of ester plasticizer

[0066] 40 parts paraffin oil

[0067] Active agent 3 parts

[0068] 1 part dispersant

[0069] Among them, the anti-aging agent is MB, the sulfur is S, the accelerator is DM, that is, dibenzothiazole disulfide, the ester plasticizer is DOS, that is, decadioctyl ester, the active agent is PEG4000, and the dispersant is FL / PLUS. and includes the following steps:

[0070] The first step, pre-mixing: Pre-mixing raw rubber and pigments for 5 minutes;

[0071] The second step, synthetic rubber: the raw materials are synthesized into rubber through an internal mixer, the time is 30min, and the t...

Embodiment 3

[0075] A preparation method of colored ethylene-propylene rubber, characterized in that the content ratio of each raw material component is as follows in parts by weight:

[0076] EPDM rubber 200 parts

[0077] 6 parts of pigment

[0078] Anti-aging agent 4 parts

[0079] White carbon black 80 parts

[0080] 3 parts sulfur

[0081] Accelerator 3 parts

[0082] 10 parts of ester plasticizer

[0083] 80 parts of paraffin oil

[0084] Active agent 8 parts

[0085]4 parts of dispersant

[0086] Among them, the anti-aging agent is 4010NA, the sulfur is S, the accelerator is BZ, that is, octyl dibutyldithiocarbamate, the ester plasticizer DOA, that is, dioctyl adipate, the active agent is PEG4000, and the dispersant is WAflux.

[0087] and includes the following steps:

[0088] The first step, pre-mixing: pre-mixing raw rubber and pigments, the time is 4 minutes;

[0089] The second step, synthetic rubber: the raw materials are synthesized into rubber through an internal ...

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Abstract

The invention relates to a method for preparing rubber, especially relates to a method for preparing a colored ethylene-propylene rubber. The invention is characterized in the pigment and rubber are pretreated and mixed, a partial high activity ultra fast accelerator is used, a partial activator is added, so that a sulfuration activity of the rubber material can be improved for further, thereby the sulfuration speed of the rubber material can be greatly increased, and the sulfuration time can be decreased, simultaneously, the formula performance is higher than that of the original formula; the product has the advantages of excellent appearance, middle and high hardness, high compression resistance and permanent deformation resistance, high tensile strength and maximum elongation, excellent aging resistance and anti-ozone performance, and can keep the excellent performance and appearance under the rigorous usage environment, the method of the invention has the advantages of reasonable raw material ratio and simple process.

Description

technical field [0001] The invention relates to a method for preparing rubber, in particular to a method for preparing colored ethylene-propylene rubber. Background technique [0002] EPDM rubber is mainly used in ordinary colored sealing products. Since the particle size of the pigment is too small, if the mixing method and process are not correct during mixing, it is easy to cause the problem of uneven dispersion of the pigment. For this reason, need a kind of formula and preparation method thereof of the vulcanized EPDM rubber that can solve the problem, solve the above-mentioned problem, thereby satisfy the needs of actual situation. Contents of the invention [0003] The object of the present invention is to propose a kind of preparation method of colored ethylene propylene rubber, and it adopts the method for pretreatment and mixing of pigment and rubber, adopts part of high activity speed accelerator, and adds part of active agent, thereby Further improving the vul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08K13/02C08K3/36C08K3/06C08K5/10B29B7/28B29B7/72B29C35/02
CPCB29B7/7495B29B7/005B29B7/183
Inventor 王军
Owner 南通威福塑业科技有限公司
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