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Anti-aging ethylene propylene diene monomer and preparation method thereof

An EPDM rubber, anti-aging technology, applied in the field of rubber, can solve the problems of shortened service life, loss of use value, rubber performance degradation, etc., and achieve the effect of improving resistance, preventing aging, and increasing porosity

Inactive Publication Date: 2018-03-06
GUILIN HEXIN WATERPROOF DECORATION MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The aging of rubber tends to deteriorate its performance and shorten the service life of the product, thus gradually losing its use value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] An anti-aging EPDM rubber, made of the following components by weight: 160 parts of EPDM rubber, 8 parts of insoluble sulfur, 20 parts of light calcium carbonate, 5 parts of methyl methacrylate, even 6 parts of nitrogen dicarboxamide, 0.8 parts of gallium oxide, 1 part of phthalimide, and 4 parts of ciclopirox olamine.

[0017] A preparation method of antiaging EPDM rubber, comprising the following steps:

[0018] 1) Add light calcium carbonate, methyl methacrylate and azodicarbonamide to the EPDM rubber in sequence according to the proportion and fully mix;

[0019] 2) Place the mixed product of step 1) for 10 hours, spray phenylethyl alcohol oleate spray on the surface of the product during the placement process, and then carry out re-milling on the mixer, and add phthalimide and ciclopirox olamine , then add insoluble sulfur, and vulcanize in a vulcanizer; the vulcanization temperature is 180°C, and the vulcanization time is 20min.

[0020] 3) Disperse gallium oxid...

Embodiment 2

[0023] An anti-aging EPDM rubber, made of the following components by weight: 200 parts of EPDM rubber, 15 parts of insoluble sulfur, 30 parts of light calcium carbonate, 8 parts of methyl methacrylate, and even 9 parts of nitrogen dicarboxamide, 3.5 parts of gallium oxide, 3 parts of phthalimide, and 8 parts of ciclopirox olamine.

[0024] A preparation method of antiaging EPDM rubber, comprising the following steps:

[0025] 1) Add light calcium carbonate, methyl methacrylate and azodicarbonamide to the EPDM rubber in sequence according to the proportion and fully mix;

[0026] 2) Place the mixed product of step 1) for 15 hours, spray phenylethyl alcohol oleate spray on the surface of the product during the placement process, and then carry out re-milling on the mixer, and add phthalimide and ciclopirox olamine , then add insoluble sulfur, and vulcanize in a vulcanizing machine; the vulcanization temperature is 210°C, and the vulcanization time is 35min.

[0027] 3) Disper...

Embodiment 3

[0030] An anti-aging EPDM rubber, made of the following components by weight: 195 parts of EPDM rubber, 12 parts of insoluble sulfur, 22 parts of light calcium carbonate, 6.5 parts of methyl methacrylate, even 7 parts of nitrogen dicarboxamide, 2.8 parts of gallium oxide, 2 parts of phthalimide, 7 parts of ciclopirox olamine.

[0031] A preparation method of antiaging EPDM rubber, comprising the following steps:

[0032] 1) Add light calcium carbonate, methyl methacrylate and azodicarbonamide to the EPDM rubber in sequence according to the proportion and fully mix;

[0033] 2) Place the mixed product of step 1) for 12 hours, spray phenylethyl alcohol oleate spray on the surface of the product during the placement process, and then carry out re-milling on the mixer, and add phthalimide and ciclopirox olamine , then add insoluble sulfur, and vulcanize in a vulcanizing machine; the vulcanization temperature is 205°C, and the vulcanization time is 30min.

[0034] 3) Disperse gal...

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PUM

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Abstract

The invention provides anti-aging ethylene propylene diene monomer and a preparation method thereof. The anti-aging ethylene propylene diene monomer is prepared from the following components in partsby weight: 160-200 parts of ethylene propylene diene monomer, 8-15 parts of insoluble sulfur, 20-30 parts of light calcium carbonate, 5-8 parts of methyl methacrylate, 6-9 parts of azodicarbonamide, 0.8-3.5 parts of gallium oxide, 1-3 parts of phthalimide and 4-8 parts of ciclopirox olamine. The preparation method comprises the steps of milling, standing allowing, remilling, vulcanization, ultraviolet light prevention treatment and hot press molding. The ethylene propylene diene monomer obtained by the method provided by the invention has excellent aging resistance, tear resistance and wear resistance, and also has extremely strong ultraviolet light resistance to further prevent aging; the obtained ethylene propylene diene monomer is more suitable for severe environments of high temperature, insolation and the like.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to an anti-aging EPDM rubber and a preparation method thereof. Background technique [0002] EPDM rubber is based on ethylene (CH 2 =CH 2 ), propylene (CH 2 =CH-CH 3 ) as the main monomer, a terpolymer made by solution polymerization and adding an unsaturated third monomer (non-conjugated diene), which belongs to saturated carbon chain rubber. Since there are no polar substituent groups in the molecular chain of EPDM rubber, the steric hindrance is small, and the molecular chain is relatively soft, so that EPDM rubber not only exhibits excellent flex resistance, resilience and low temperature resistance, but also It also has good chemical structure stability and is widely used in the fields of automobile industry, wire and cable, sealing materials and heat-resistant products. Although EPDM rubber has excellent chemical structure stability, it will still undergo a certain degree ...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08K13/06C08K9/04C08K3/26C08K3/06C08K3/22C08K5/3432C08K5/3417C08J9/10
CPCC08J9/103C08J9/0028C08J9/0066C08J9/009C08J9/0095C08J2203/04C08J2323/16
Inventor 黄志强
Owner GUILIN HEXIN WATERPROOF DECORATION MATERIAL
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