EPDM (Ethylene-Propylene-Diene Monomer) rubber composition and preparation method thereof

A technology of EPDM rubber and its composition, which is applied in the field of rubber, can solve the problems that have not been taken into account, that heat cannot be quickly dispersed, and achieve the effects of saving product costs, simple and practical processing technology, and overcoming hardening and brittleness

Inactive Publication Date: 2014-06-25
柳州日高汽车减振技术有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the past, the cooling hose used in automobiles was required to be a rubber hose, which can be used for a long time under the condition of the temperature of the conveying liquid (usually below 100°C). at the temperature of the delivery fluid itself; and now with the compact product of the engine structure, the temperature increases rapidly and the heat cannot be dissipated quickly

Method used

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  • EPDM (Ethylene-Propylene-Diene Monomer) rubber composition and preparation method thereof
  • EPDM (Ethylene-Propylene-Diene Monomer) rubber composition and preparation method thereof
  • EPDM (Ethylene-Propylene-Diene Monomer) rubber composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Mass unit: gram.

[0024]

[0025] Mixing and processing according to the raw materials and dosage in the listed ratio: rubber, raw material weighing→rubber masticating→banbury mixing and feeding→one-stage kneading and unloading→storage and cooling→second-stage kneading and vulcanization→vulcanized rubber sheets→cutting according to standards Take a sample→do a test test.

[0026] Below is embodiment 1 EPDM performance testing result:

[0027]

Embodiment 2

[0029] Mass unit: gram.

[0030]

[0031] Mixing and processing according to the raw materials and dosage in the listed ratio: rubber, raw material weighing→rubber masticating→banbury mixing and feeding→one-stage kneading and unloading→storage and cooling→second-stage kneading and vulcanization→vulcanized rubber sheets→cutting according to standards Take a sample→do a test test.

[0032] Below is embodiment 2 EPDM performance test results:

[0033]

Embodiment 3

[0035] Mass unit: gram.

[0036]

[0037] Mixing and processing according to the raw materials and dosage in the listed ratio: rubber, raw material weighing→rubber masticating→banbury mixing and feeding→one-stage kneading and unloading→storage and cooling→second-stage kneading and vulcanization→vulcanized rubber sheets→cutting according to standards Take a sample→do a test test.

[0038] Below is embodiment 3 EPDM performance testing results:

[0039]

[0040] Through the analysis of the results of the above several groups of tests, the EPDM formula of this invention can meet the standard requirements of GB 18948, and has high practical value, that is, it can meet the environmental and environmental conditions of the vulcanized product at 100°C-150°C. It can be used for a long time at -20°C, and at the same time, it can also meet the tensile properties (strength and elongation at break) of the vulcanized rubber to meet the production needs of the product. Thereby embod...

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Abstract

The invention relates to the technical field of rubber, and particularly relates to an EPDM (Ethylene-Propylene-Diene Monomer) rubber composition and a preparation method thereof. The EPDM rubber composition comprises the following ingredients: EPDM rubber, zinc oxide, stearic acid, antiaging agent, antioxidant, low-structure fast-extruding carbon black N539, low-structure semi-reinforcing carbon black N754, white wax oil, sulfur and accelerant. The preparation method sequentially comprises the steps of: weighing rubber and raw materials; plastifying the rubber; carrying out internal mixing and charging materials; performing one-section open-milling and batching off; stopping and cooling; carrying out two-section open-milling and sulphurating; vulcanizing rubber pieces; cutting patterns according to standard; and carrying out test detection. By use of the EPDM rubber composition, the heat-oxygen aging resistance, ozone aging resistance, weather aging resistance and low temperature resistance of a rubber pipe product can be improved, and the defect that the rubber pipe can resist high temperature, but is hardened and gets fragile under a low-temperature condition can be overcome. Furthermore, the product cost can be greatly saved, and the processing technique is simple and practical.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a EPDM composition and a preparation method thereof. Background technique [0002] With the development of the automobile industry, the composition of fuel and refrigerants has changed, and the liquid-resistant medium has changed. At the same time, the space in the engine compartment has become smaller, which greatly increases the use temperature of materials. For the radiator hose, which mainly plays a role in cooling As a product used around automobile engines, its resistance to high temperature and ozone aging has gradually attracted people's attention. [0003] In the past, the cooling hose used in automobiles was required to be a rubber hose, which can be used for a long time under the condition of the temperature of the conveying liquid (usually below 100°C). Because of the temperature of the delivery fluid itself; and now with the compact product of the engine structure, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08K13/02C08K3/22C08K5/09C08K3/04C08K3/06C08J3/24
CPCC08L23/16C08K2201/014C08L2201/08C08L2203/18C08L91/06C08K13/02C08K2003/2296C08K5/09C08K3/04C08K3/06C08K5/18
Inventor 罗鹏林杰黄志宽
Owner 柳州日高汽车减振技术有限责任公司
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