Modified carcass ply compound of all-steel radial tire

Abstract

The invention provides a modified carcass ply compound of an all-steel radial tire. According to the modified carcass ply compound, resorcin is replaced with phenolic resin. The resorcin is replaced with modified phenolic resin Penacolite B-20-S, modified phenolic resin Elaztobond A250 and phenolic resin TYC-0219, the Mooney viscosity of a sizing material is increased, and the scorch time is prolonged; except for the condition that the resin TYC-0219 enables the vulcanizing time to be prolonged obviously, and little difference of other resin exists; the tensile strength and the stretching stress of vulcanized rubber are reduced slightly, and other physical and mechanical properties are not changed much; and storage moduli and loss factors are all reduced; and the drawing force between the sizing material and a coppered steel wire is increased obviously.

Description

technical field [0001] The invention relates to an improved all-steel radial tire carcass rubber by using phenolic resin instead of resorcinol. Background technique [0002] All-steel radial tires are made of steel cord for the belt layer and carcass layer, and are generally medium-duty truck tires and light-duty truck tires. It mainly has the following advantages: 1) wear-resistant, puncture-resistant, durable, high mileage and long service life; 2) small rolling resistance, low fuel consumption, low heat generation, energy saving and reduced exhaust emissions; 3) high-speed safety, reduced Comfortable vibration and stable handling Steel wire has been widely used as a skeleton material in the belt layer and carcass layer of radial tires. In order to improve the adhesion between steel wire and rubber, the surface is generally treated with brass plating. During vulcanization, the sulfur in the compound reacts with zinc oxide and copper oxide on the surface of the coating...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the difficulty of dispersing resorcinol in the m-formazan-white-cobalt adhesion promotion system of the prior art during low-temperature mixing, and the high-temperature mixing is easy to sublimate and emit smoke, which seriously pollutes the environment and affects human health. Moreover, it is easy to cause blooming and reduce the adhesive performance.