Binder for high-strength screen framework

Abstract

The invention discloses a binder for a high-strength screen framework. The binder is prepared from the following components: defatted soybean meal, potassium hydroxide solution, phenol, formaldehyde,polyamine, vinyl silicone rubber, diphenyl silicon glycol, 2,5-di-tert-butylperoxide-2,5-dimethylhexane, melamine, polyimide, terpene resin, vinyl acetate, n-propanol, hydroquinone, boric acid, diphenyl dichlorosilane, dimethyldichlorosilane, gallic acid propyl ester, cyclohexylphenyl p-phenylenediamine, coal tar, sepiolite powder, polyethylene glycol and alkaline lignin processing waste liquid. The binder disclosed by the invention is wide in application range to screen base materials, is basically relatively high in adhesion to materials commonly used in screens, is high in initial adhesionand high in composite strength, meets a requirement for the use durability of a rear screen, is relatively high in heat resistance, cold resistance and medium resistance, is high in operability and high in bonding strength, and has relatively low requirements for equipment and operators.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to an adhesive for a high-strength screen skeleton. Background technique [0002] Screening system equipment mainly includes vibrating screen, spiral classifier, feeding belt machine, etc. Among them, the noise of the vibrating screen is more prominent, and the noise value of the screening system is greater than 100dB. In the production process, the vibrating screen adopts polyurethane screen instead of the original metal screen, and uses wear-resistant rubber lining to increase damping. The noise has been reduced to a certain extent. [0003] High temperature resistant adhesives generally refer to a type of adhesive that can be used at temperatures above 150°C. Such adhesives mainly include modified multifunctional epoxy resins, phenolic resins, silicon-containing (or boron) polymers, high-temperature-resistant polymers containing aromatic heterocycles, and inorganic adhesives. [0004...

AI Technical Summary

Problems solved by technology

[0004] Screens are mostly used in mining equipment, used in mines and quarries, combined with vibrating screens and other mining equipment, suitable for vibrating screens in metallurgy, coal, chemical industry, construction and other departments, and can be used as fine-grained fractions in bulk materials Sieves and screens generally have excellent properties such as high strength, good elasticity, strong corrosion resistance, and low noise. The mixture uses conventional adhesives. During use, the bonding strength is small, the fastness is poor, and it is not resistant to high temperature. Under high-intensity use of equipment and special environments, the fastness drops rapidly, which may affect the polymer screen. Performance has a certain impact, affecting the normal use of the screen, and those skilled in the art urgently need to develop a new type of high-strength screen skeleton adhesive to meet higher use requirements

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