Intermediate adhesive for high-heat-resistant conveying belt and preparation method of intermediate adhesive

Abstract

The invention relates to an intermediate adhesive for a high-heat-resistant conveying belt and a preparation method of the intermediate adhesive. The prepared product has good heat resistance and adhesion property. The preparation method comprises the following steps of: carrying out plastication on natural rubber on an open mill and inputting the prepared plastified rubber, ethylene propylene rubber and butadiene styrene rubber into an internal mixer to be subjected to banburying; then opening an upper ejector plug and adding reinforcement fillers, a vulcanizing activator, a vulcanization accelerator, a coupling agent, a plasticizer and an age resister to be subjected to banburying and carrying out stirring processing, chip discharging and normal temperature fan cooling to obtain a primary rubber compound; and carrying out secondary mixing, inputting the prepared primary rubber compound and a vulcanizing agent into the internal mixer to be subjected to mixing and carrying out stirring, chip discharging and normal temperature fan cooling to obtain the product, i.e. the intermediate adhesive for the high-heat-resistant conveying belt. After the intermediate adhesive for the high-heat-resistant conveying belt, which is disclosed by the invention, is used, not only is the requirement of the material conveying process in cement plants and steel mills on high temperature resistancemet, but also the intermediate adhesive can take a good adhesion transition effect on cover rubber and core rubber of the high-heat-resistant conveying belt, the delamination is prevented, the service life of the conveying belt is greatly prolonged and high economic benefits are realized.

Description

technical field [0001] The invention relates to a high-heat-resistant conveyor belt intermediate glue and a preparation method thereof. The prepared product has good heat resistance and adhesion performance, and is suitable for making canvas core heat-resistant conveying conforming to the GB / T 20021-2005 standard bring. Background technique [0002] With the rapid development of China's economy, it has led to the rapid growth of basic industries such as steel and cement, and the continuous expansion of market demand has prompted a rapid increase in the production scale and production capacity of the steel and cement industries. 1. Conveyor belt, the key component of material transportation in the production of cement industry, puts forward higher requirements. [0003] The materials conveyed in the steel and cement industries generally have the characteristics of high temperature. Sometimes, the instantaneous temperature can reach 400-500 ° C. Therefore, for the covering ru...

AI Technical Summary

Problems solved by technology

The interface properties and vulcanization systems of the cover rubber of ethylene-propylene rubber and the core rubber of natural rubber and styrene-butadiene rubber are very different. If they are directly bonded and vulcanized into a conveyor belt, delamination is likely to occur in a high-temperature environment. Seriously affect the service life of the conveyor belt

At present, the high-heat-resistant conveyor belts used in the domestic cement and steel industries also generally suffer from delamination and damage to the conveyor belts.