Direct adding type high-performance cobalt salt adhesion promoting agent and preparation method thereof

Abstract

The invention discloses a direct adding type high-performance cobalt salt adhesion promoting agent and a preparation method thereof. The adhesion promoting agent comprises neodecanoate and boroacylate; the neocaprate is prepared from 18%-25% of a mixed metal, 44%-50% of neodecanoic acid, 18%-20% of neopentanoic acid and 12%-13% of propionic acid; the boroacylate is prepared from 16%-21% of a mixed metal, 33%-35% of neodecanoic acid, 9%-10% of neopentanoic acid, 17%-20% of propionic acid and 18%-21% of tributyl borate, wherein according to the mass percentage, the mixed metal comprises 46%-84% of cobalt, 10%-36% of rare earth elements, and 6%-18% of other metals. The product releases active metal ions and active bivalent cobalt ions under vulcanizing conditions to form a 'synergistic catalytic' effect, the catalytic ability of single cobalt ions is increased in multiples, the product amount is reduced by half, the residual amount of cobalt in rubber products can be reduced by about 60%, the residual amount of organic acid radicals can be reduced by about 40%, and the adhesion level and other physical indicators all can reach or exceed the same level with use of an original cobalt salt adhesion promoting agent, so that improvement of the aging performance of the rubber products and increase of the service life of the rubber products are facilitated, and the purpose of low cobalt formation of the direct adding type cobalt salt adhesion promoting agent is achieved.

Description

Technical field [0001] The invention relates to a direct-added high-performance cobalt salt adhesion enhancer and a preparation method thereof, in particular to a direct-added high-performance cobalt salt adhesion enhancer used in the manufacture of rubber products such as steel wire radial tires, steel wire reinforced conveyor belts, steel braided hoses, etc. And its preparation method. Background technique [0002] In rubber product industries such as steel wire radial tires, steel wire reinforced conveyor belts, and steel braided hoses, the rubber-metal adhesion enhancers commonly used at home and abroad are all directly added cobalt salt adhesion enhancers. The main varieties are cobalt neodecanoate, Cobalt boroacylate and so on. In addition to high-strength adhesive properties and excellent dynamic mechanical properties, this type of direct-added cobalt salt adhesion promoter also has excellent properties such as anti-aging, heat-resistant oxygen, humidity and heat resistan...

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