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High-hardness color ethylene-propylene-diene monomer (EPDM) suitable for microwave vulcanizing and preparation method thereof

A technology of EPDM rubber and microwave vulcanization, which is applied in the field of rubber, can solve the problems of easy occurrence of air bubbles and insufficient hardness, and achieve the effect of long service life

Active Publication Date: 2013-12-11
TAICANG GUANLIAN POLYMERIC MATERIAL
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current colored rubber usually uses silicate-based white carbon black filler, which has a high moisture content, so it is prone to bubbles during microwave vulcanization. If the colored rubber made of other commonly used light-colored fillers is used , its hardness is not high enough

Method used

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  • High-hardness color ethylene-propylene-diene monomer (EPDM) suitable for microwave vulcanizing and preparation method thereof
  • High-hardness color ethylene-propylene-diene monomer (EPDM) suitable for microwave vulcanizing and preparation method thereof
  • High-hardness color ethylene-propylene-diene monomer (EPDM) suitable for microwave vulcanizing and preparation method thereof

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Embodiment 1-6

[0026] Manufacture the high-hardness colored EPDM rubber adapting to microwave vulcanization involved in the present invention according to the following steps:

[0027] (1) Material preparation: According to the ratio in Table 1 below, weigh the aluminum silicate reinforcing filler, EPDM rubber and softening plasticizer separately and place them, and mix the colorant, active agent and other additives together to form batch A, and mix vulcanizing agent and accelerator together to form batch B;

[0028] (2) The first mixing: put EPDM rubber and ingredient A into the internal mixer and mix for 30-60 seconds, then continue to mix with aluminum silicate reinforcing filler and softening plasticizer for 60-120 seconds , and then continue to mix for 60-90 seconds after cleaning, and then unload the material onto the feeder to discharge the sheet to make rubber compound A;

[0029] (3) The second mixing: Put the rubber compound A and ingredients B into the internal mixer and mix for ...

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Abstract

The invention discloses a high-hardness color ethylene-propylene-diene monomer (EPDM) suitable for microwave vulcanizing. The EPDM comprises the following components by weight percent: 30-36% of EPDM, 50-56% of aluminium silicate reinforcing filler, 1-7% of a softening plasticizer, 3-5% of a coloring agent, 1-3% of an activating agent, 0.5-1.5% of a vulcanizing agent and 1-2% of an accelerant. Besides, the invention also discloses a method for preparing the EPDM. The EPDM has the characteristics of heat resistance, low temperature resistance, ozone resistance, weathering aging resistance and insulation, has a long service life, can be suitable for the production process of continuous microwave vulcanizing, does not generate bubbles and has high degree of hardness.

Description

technical field [0001] The invention relates to a rubber, in particular to a high-hardness colored EPDM rubber suitable for microwave vulcanization and a preparation method thereof. Background technique [0002] Raw rubber becomes soft when heated, becomes hard and brittle when cooled, is not easy to form, is easy to wear, and is easily soluble in organic solvents such as gasoline. Therefore, in order to improve the performance of rubber products, a series of processing processes must be carried out on raw rubber in production. The macromolecules linked into a three-dimensional network structure make the rubber compound have excellent properties such as high strength, high elasticity, high wear resistance, and corrosion resistance. This process is called vulcanization. [0003] However, the current colored rubber usually uses silicate-based white carbon black filler, which has a high moisture content, so it is prone to bubbles during microwave vulcanization. If colored rubb...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08K3/34B29B7/30
Inventor 詹才福苏怀生
Owner TAICANG GUANLIAN POLYMERIC MATERIAL
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