High-temperature-resistant anti-aging rubber material used for hot-water valve seal ring and preparation method thereof

Abstract

The invention discloses a high-temperature-resistant anti-aging rubber material used for a hot-water valve seal ring. The rubber material is composed of the following raw materials in parts by weight: 100 to 120 parts of EPDM rubber, 5 to 10 parts of bismaleimide resin, 1 to 2 parts of terpene resin, 60 to 80 parts of white carbon black, 2 to 4 parts of zinc oxide, 1.5 to 2.5 parts of sulfur S80, 1.5 to 2.5 parts of an anti-aging agent MB, 0.3 to 0.5 part of an accelerator TMTD, 2 to 4 parts of methyltrimethoxysilane, 0.3 to 0.5 part of rosin-polythylene oxide ester, 0.5 to 1 part of tetrabutyl titanate, 0.15 to 0.25 part of a titanate coupling agent NDZ-401, 6 to 8 parts of nanometer graphite powder, 4 to 6 parts of castor oil and 0.3 to 0.5 part of trinonylphenyl phosphite. The rubber material provided by the invention has the advantages of good wear-resistant effect, durable antifriction performance, good high-temperature-resistant and anti-aging performances, long service life, good sealing properties, and applicability to hot-water valve seal ring materials.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a high-temperature-resistant and anti-aging rubber material for a sealing ring of a hot water valve and a preparation method thereof. Background technique [0002] As an indispensable and important polymer material in the national economy and daily life, rubber has excellent physical and mechanical properties, elasticity and processing properties, and plays an irreplaceable role in many important fields such as automobile transportation, mining, and chemical industry. . Tribological performance is a very important indicator of rubber materials, related to the wear resistance of rubber tire products, the wear resistance of seals, etc. Improving the wear resistance of rubber materials is conducive to increasing its service life, and can bring considerable economic and social benefits in terms of saving energy, materials, lubricants, etc. [0003] At present, one of the m...

AI Technical Summary

Problems solved by technology

However, the hardness of graphite is low and it is easy to wear and tear. Only using graphite as a lubricating component is not conducive to maintaining long-term lubrication and anti-friction performance, and the effect of prolonging the service life of rubber products is limited. It is necessary to improve it