High-temperature-resistant conveyor belt cover rubber for cement plant and preparation process thereof

Abstract

The invention discloses high-temperature-resistant conveyor belt cover rubber for a cement plant and a preparation process thereof. The invention belongs to the technical field of conveying belts, andthe conveyor belt cover rubber comprises, by mass, 88-93 parts of ethylene propylene diene monomer, 8-12 parts of chloroprene rubber, 8-10 parts of high-temperature-resistant resin, 6-8 parts of softener, 30-40 parts of carbon black, 4-5 parts of nano zinc oxide, 1-2 parts of stearic acid, 10-20 parts of high-temperature-resistant filler, 5-7 parts of vulcanizing agent, 2-3 parts of accelerant, 3-4 parts of anti-aging agent and 2-3 parts of antioxidant. The preparation process comprises the following steps: gluing the ethylene-propylene-diene monomer and the neoprene, mixing into master batch, controlling the temperature to be 60-75 DEG C, then adding the high-temperature-resistant resin, the zinc oxide, the stearic acid, the accelerant, the anti-aging agent, the thermal oxidant, the carbon black, the softener and the high-temperature-resistant filler step by step, mixing, controlling the mixing temperature to be less than 120 DEG C, and finally controlling temperature to 90 DEG C formolding vulcanization. The prepared cover rubber can be used for a long time at the temperature of 180 DEG C, and has excellent high temperature resistance and reproducibility.

Description

technical field [0001] The invention belongs to the technical field of conveyor belts, and relates to a conveyor belt covering glue, in particular to a high-temperature-resistant conveyor belt covering glue and a preparation process thereof, which is suitable for conveying clinker in cement plants and can be used for a long time at a temperature of 180 degrees. Background technique [0002] Conveyor belts are widely used and can transfer and transport various materials. With the advancement of science and technology and the gradual advancement of modernization, actual production and life have put forward higher standards for various performance requirements of conveyor belts. At present, the main damage or failure forms of domestic high-temperature-resistant conveyor belts are: covering rubber cracking, burning through, falling off pieces, foaming of the cloth layer, and ruffles on the belt body due to high temperature. High temperature resistant conveyor belts are mainly us...

AI Technical Summary

Problems solved by technology

High temperature resistant conveyor belts are mainly used to transport high temperature materials in the chemical industry. Based on their harsh working conditions, the bonding strength between the covering layer and the skeleton layer will be greatly reduced above 150°C, thus shortening the life of the conveyor belt.

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