Formula of EPDM (ethylene propylene diene monomer) material applied to dynamic-fatigue-resistant products and preparation method of EPDM material

Abstract

The invention discloses a formula of an EPDM (ethylene propylene diene monomer) material applied to dynamic-fatigue-resistant products and a preparation method of the EPDM material. The formula of the EPDM material comprises the following raw materials in parts by weight: 90-110 parts of EPDM rubber, 3.5-8 parts of zinc oxide, 0.5-2 parts of stearic acid, 10-90 parts of carbon black N774, 20-50 parts of paraffin oil 2280, 0.2-4 parts of vulcanizing agent S-80, 0.2-3 parts of accelerator TMTD (tetramethylthiuram disulfide) and 0.1-2 parts of antioxidant MBD. According to the formula disclosed by the invention, the EPDM rubber is used as a base material, the TMTD is used as the accelerator, the MBD is used as the antioxidant, and other auxiliary materials are compatible, so that the EPDM material prepared by adopting an optimized formula not only has superior physical and mechanical properties and dynamic fatigue resistance, but also has greatly-improved heat resistance and air aging resistance compared with conventional materials.

Description

technical field [0001] The invention relates to the technical field of weather-resistant materials, in particular to a formulation of an EPDM material used in anti-dynamic fatigue products and a preparation method thereof. Background technique [0002] With the development of science and technology and the continuous expansion of the field of human exploration, the environment faced by human beings has put forward more stringent requirements for the equipment and vehicles we use. In order to improve the service life of equipment, there are higher requirements for high temperature resistance, air resistance, physical and mechanical properties and damping performance of anti-fatigue parts in equipment and vehicles. Natural rubber has better conventional fatigue resistance. However, natural rubber has poor high temperature resistance and can only be used in an environment not higher than 80°C. Under high temperature conditions, the material structure changes and various propert...

AI Technical Summary

Problems solved by technology

The conventional anti-fatigue performance is better than natural rubber. However, the high temperature resistance of natural rubber is poor, and it can only be used in an environment not higher than 80°C. Under high temperature conditions, the structure of the material changes, reducing various properties.

At the same time, natural rubber is easily oxidized, which reduces the performance and causes the product to lose its use value.