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Rubber additive and ethylene propylene diene monomer containing same

A technology of EPDM rubber and additives, which is applied in the field of rubber additives, can solve the problems of high price, large amount of addition, and increased cost of rubber sealing rings, and achieve the effects of good processing performance, low Mooney viscosity, and improved production efficiency

Active Publication Date: 2010-05-19
瀚德(中国)汽车密封系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this prior art, the number of EPDM raw materials accounts for more than 40% of the total number of parts (including additives), and it can be seen that the addition of the EPDM raw materials in the rubber sealing ring is relatively large , and the price of EPDM raw materials is very expensive, which also causes the cost of the rubber sealing ring in the prior art to be greatly increased as a whole

Method used

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  • Rubber additive and ethylene propylene diene monomer containing same
  • Rubber additive and ethylene propylene diene monomer containing same
  • Rubber additive and ethylene propylene diene monomer containing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A rubber additive consisting of the following raw material components in parts by weight: 6.5 parts of zinc oxide, 2.5 parts of sulfur, 1 part of stearic acid, 2 parts of polyethylene with a melting point of 85 °C, 7.5 parts of composite interface lubricant, and 130 parts of carbon black Parts, 50 parts of calcium carbonate, 32 parts of paraffin oil, 5.24 parts of composite accelerator.

[0033] Wherein, the carbon black N774 is 60 parts, and the carbon black N550 is 70 parts; the composite interface lubricant is composed of 2 parts of zinc stearate, 2.5 parts of fatty acid zinc and 3 parts of fatty acid calcium; the composite accelerator is composed of 2.27 parts Part accelerator MBTS-75, 0.87 part accelerator DPG-80, 0.8 part accelerator BZ, 0.8 part accelerator ZBEC-80 and 0.5 part accelerator TMTD.

Embodiment 2

[0035] A rubber additive consisting of the following raw material components in parts by weight: 6.5 parts of zinc oxide, 2.5 parts of sulfur, 1 part of stearic acid, 2 parts of polyethylene with a melting point of 100 °C, 7.5 parts of composite interface lubricant, and 195 parts of carbon black Parts, 50 parts of calcium carbonate, 75 parts of paraffin oil, 5.24 parts of composite accelerator.

[0036] Wherein, the carbon black N774 is 90 parts, and the carbon black N550 is 105 parts; the composite interface lubricant is composed of 2 parts of zinc stearate, 2.5 parts of fatty acid zinc and 3 parts of fatty acid calcium; the composite accelerator is composed of 2.27 parts Part accelerator MBTS-75, 0.87 part accelerator DPG-80, 0.8 part accelerator BZ, 0.8 part accelerator ZBEC-80 and 0.5 part accelerator TMTD.

Embodiment 3

[0038] A rubber additive consisting of the following raw material components in parts by weight: 6.5 parts of zinc oxide, 2.5 parts of sulfur, 1 part of stearic acid, 2 parts of polyethylene with a melting point of 90 °C, 7.5 parts of composite interface lubricant, and 175 parts of carbon black parts, 50 parts of calcium carbonate, 68.5 parts of paraffin oil, 5.24 parts of composite accelerator.

[0039] Wherein, the carbon black N774 is 80 parts, and the carbon black N550 is 95 parts; the composite interface lubricant is composed of 2 parts of zinc stearate, 2.5 parts of fatty acid zinc and 3 parts of fatty acid calcium; the composite accelerator is composed of 2.27 parts Part accelerator MBTS-75, 0.87 part accelerator DPG-80, 0.8 part accelerator BZ, 0.8 part accelerator ZBEC-80 and 0.5 part accelerator TMTD.

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Abstract

The invention relates to a rubber additive and ethylene propylene diene monomer containing the same. The rubber additive is characterized by comprising the following components in part by weight: 6.5 parts of zinc oxide, 2.5 parts of sulfur, 1 part of stearic acid, 2 parts of polyethylene with the melting point of between 85 and 100 DEG C, 7.5 parts of composite interface lubricating agent, 130 to 195 parts of carbon black, 50 parts of carbonate, 32 to 75 parts of paraffin oil, and 5.24 pats of complex accelerant. The invention aims to solve the technical problems that the ethylene propylene diene monomer in the prior art has a high cost under the condition of the same hardness and the same Mooney viscosity, provides an additive which saves more cost and the ethylene propylene diene monomer using the additive, and further provides the ethylene propylene diene monomer with large tensile strength and elongation at break.

Description

technical field [0001] The invention relates to a rubber additive and EPDM rubber with the additive, belonging to the technical field of rubber additives. Background technique [0002] EPDM rubber is a terpolymer of ethylene, propylene and non-conjugated dienes, the main polymer chain of which is fully saturated. It is precisely because of its above-mentioned structural characteristics that EPDM rubber has the following characteristics: First, aging resistance, ethylene-propylene rubber has excellent weather resistance, ozone resistance, heat resistance, water vapor resistance, color stability, electrical properties, Oil-extended and fluidity at room temperature. Ethylene-propylene rubber products can be used for a long time at 120 ° C, and the addition of suitable anti-aging agents can further increase its service temperature. Under the conditions of ozone concentration of 50pphm and stretching of 30%, EPDM rubber can reach more than 150h without cracking. Second, corros...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K13/02C08K3/22C08K3/06C08K5/09C08K3/04C08K3/26C08K5/01C08K5/098C08L23/16
Inventor 邓峰唐凤满
Owner 瀚德(中国)汽车密封系统有限公司
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