Modified adhesive for bonding rubber and steel wire and production process thereof

Abstract

The invention provides a modified adhesive for bonding rubber and a steel wire and a production process of the modified adhesive, and relates to the technical field of adhesives, and the modified adhesive comprises the following components in parts by raw materials: 15-30 parts of resorcinol, 30-50 parts of a cobalt salt adhesive, 10-15 parts of white carbon black, 3-5 parts of a separant and 2-5parts of modifier. The production process of the adhesive comprises the following steps: (1) weighing the resorcinol according to a ratio, putting the resorcinol into a reaction kettle, heating the reaction kettle to 60-80 DEG C, starting to stir for 10 minutes, then adding the separant, and stirring for 25 minutes while adding the separant; 2) adjusting the temperature of the reaction kettle to 30-40 DEG C, starting stirring, uniformly weighing the cobalt salt adhesive and the white carbon black according to a ratio, adding the cobalt salt adhesive and the white carbon black, stirring for 10minutes, and discharging to obtain a semi-finished product; and 3) adding the mixed semi-finished product into a high-speed stirrer, adjusting the temperature of the stirrer to 95-100 DEG C, adding amodifier, stirring at a high speed for 20 minutes to obtain the adhesive finished product. The modified adhesive is simple in process and convenient to use, and the complexity of an adhesion mechanismis solved.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a modified adhesive used for bonding rubber and steel wires and a production process thereof. Background technique [0002] At present, cobalt salt adhesive is mainly used for bonding rubber and steel wire, and cobalt salt is also the most effective adhesive at present, but the rubber formula is different from each manufacturer and the required standards are also different, which affects the technical level of engineers. put forward higher requirements. [0003] Cobalt salts are used to improve the adhesion between rubber and metal, and have been widely recognized and widely used in products such as radial tires, steel cord conveyor belts and steel cord hoses. In addition to cobalt salts directly used as adhesion promoters, many companies also use cobalt salts in combination with m-formaldehyde (white) resin adhesive systems. However, whether it is used alone or in combinatio...

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Problems solved by technology

This is because in terms of the adhesion mechanism, if the content of cobalt ions in the rubber is too high, it will not only promote the formation of a large amount of inactive copper sulfide, but also catalyze the accelerated aging of rubber hydrocarbons; while the content of cobalt ions is too low, it is difficult for zinc and copper to bond with sulfur Generates reactive cuprous sulfide so that good adhesion cannot be obtained

Considering the performance of the rubber formula itself, adding a small amount (appropriate amount) of cobalt salt is beneficial to adhesion, but a high ratio of cobalt salt is not only harmful to the adhesion after steam aging, but also to the strength of the rubber compound after heat aging. Elongation properties are also adversely affected by

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