Cobalt-free composite metal borylate salt adhesion promoter and its preparation method and application

Abstract

The invention discloses a cobalt-free composite metal boron acrylation salt adhesion promoter and a preparation method and application thereof. Boron acrylation salt is prepared from, by mass of 100%,25-35% of mixed metal, 15-25% of neodecanoic acid, 8-16% of neopentanoic acid, 25-35% of propionic acid, 1.5-5% of abietic acid and 8-12% of tributyl borate, and the mixed metal comprises, by mass of100%, 35-60% of nickel, 20-38% of zinc and 16-26% of rare earth element. Nickel, zinc and a small amount of rare earth metal are used to replace expensive cobalt, and adhesion performance of the promoter prepared by the method is on a same level with original cobalt salt adhesion promoters while aging performance of the same is obviously better than that of the original cobalt salt adhesion promoters, so that product cost is lowered substantially, and the promoter has good economic benefit and social benefit.

Description

technical field [0001] The invention relates to a cobalt-free adhesion promoter and its preparation method and application, in particular to a cobalt-free composite metal boroacylate adhesion promoter used in the manufacture of steel wire radial tires, steel wire reinforced conveyor belts, steel braided hoses and other rubber products and its Preparation method, application. Background technique [0002] In the steel radial tire, steel wire reinforced conveyor belt, steel braided rubber hose and other rubber products industries, the rubber-metal adhesion promoters commonly used at home and abroad are all direct-addition cobalt salt adhesion promoters, and the main varieties are cobalt decanoate, boron cobalt acylate etc. In addition to high-strength adhesive properties and excellent dynamic mechanical properties, this direct-added cobalt salt adhesion promoter also has excellent properties such as anti-aging, heat and oxygen resistance, heat and humidity resistance, and sal...

AI Technical Summary

Problems solved by technology

[0005] Although organic salts of cobalt can promote the high-strength bonding of rubber and metal, due to the scarcity of cobalt resources, the price is expensive, and the residual cobalt will affect the aging performance and service life of rubber products, so other metals are used instead Research on cobalt has already started in developed countries such as the UK and Japan

Preliminary studies have shown that the organic salts made of a single metal other than cobalt have inferior adhesive properties to organic cobalt salts, but the organic salt of a single cobalt is replaced by a composite organic salt composed of several metals. It is possible to replace the organic salt of cobalt with the organic salt of compound metal through the "synergistic catalysis" effect. At present, there is almost no research work on this in my country.

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