Water-based environmental-friendly EPDM (Ethylene-Propylene-Diene Monomer) rubber material and preparation method thereof

Abstract

The invention discloses a water-based environmental-friendly EPDM (Ethylene-Propylene-Diene Monomer) rubber material which comprises the following components in parts by weight: 100-150 parts of EPDM,110-165 parts of base saturated carbon black, 15-20 parts of paraffin oil, 5-10 parts of zinc oxide, 1-2 parts of stearic acid, 2-3 parts of a flow promoter L-24, 2-3.5 parts of an active agent PEG4000, 1-2 parts of an internal releasing agent KL-3Q, 1.2-1.8 parts of sulfur S-80, 0.8-1.2 parts of an accelerant DM, 1.5-2.5 parts of an accelerant CBS, 0.3-0.5 part of an accelerant TT, 1-1.5 parts of an accelerant ZDBC-75 and 0.6-1.1 parts of an accelerant DPTT-70.

Description

technical field [0001] The invention relates to the technical field of water-wading EPDM rubber, in particular to a water-wading environment-friendly EPDM rubber material and a preparation method thereof. Background technique [0002] Carbon black is an important reinforcing agent and filler for rubber products, which can improve the mechanical properties of rubber. More than 60% of the global carbon black is used in the rubber industry, and it is the second important raw material in the rubber industry after rubber. . The reinforcing effect of carbon black on rubber mainly depends on the properties of carbon black, such as particle size, aggregate shape and surface chemical properties of particles, etc. The finer the carbon black particles, the higher the structure and the better the reinforcing effect. [0003] Ethylenepropylene diene monomer (EPDM) is a multifunctional elastomer with excellent water resistance, chemical resistance and ozone resistance. It is often used i...

AI Technical Summary

Problems solved by technology

The article "Degradation Mechanism of EPDM Rubber Gasket in Chlorine-Containing Urban Water" published in Volume 44, Issue 6 of "Rubber Reference Materials" in 2014 introduced that residual chlorine in water would be unbound to EPDM molecules. The adsorption and enrichment of free carbon black leads to the degradation of EPDM rubber. The higher the chlorine concentration, the more serious the degradation. In addition, the heavy metals adsorbed and accumulated by free carbon black will also promote the oxidation of rubber, reduce its service life, and affect the performance of valves.

Images