Filler specialized for high-strength and insulated high-pressure rubber hose, and preparation method thereof

Abstract

The invention relates to a filler specialized for a high-strength and insulated high-pressure rubber hose, and a preparation method thereof. The filler is prepared from the following raw materials by weight: 7-10 parts of attapulgite, 2-3 parts of triallyl isocyanurate, 3-5 parts of an anti-scorching agent CTP, 1-2 parts of zinc isoocatanoate, 8-12 parts of nano aluminium oxide, 1-2 parts of barium stearate, 2-3 parts of magnesium sulfate, 2-3 parts of glycerol, 1-2 parts of sorbitan monooleate, 0.4-0.5 part of polyoxyethylene alkyl amine, 60-65 parts of fly ash, a proper amount of 4-6% hydrochloric acid, a proper amount of water and 15-20 parts of an auxiliary agent. The filler provided by the invention has uniform and fine particles and good reinforcing property, and can enhance tensile strength and wear resistance of the hose. By adding nano aluminium oxide, the filler has excellent insulating, reinforcing and toughening effects; by using the fly ash, cost is reduced and reinforcing property is good; and by using the auxiliary agent provided by the invention, dispersibility and reinforcing property of the filler are increased, the strength and impact toughness of the high-pressure rubber hose can be increased, and the high-pressure rubber hose is not liable to bubble or deform.

Description

technical field [0001] The invention belongs to the field of high-pressure rubber hoses, in particular to a special filler for high-strength insulating high-voltage rubber hoses and a preparation method thereof. Background technique [0002] High-pressure rubber hoses are used in mine hydraulic supports, oil field development, engineering construction, lifting transportation, metallurgical forging, mining equipment, ships, injection molding machinery, agricultural machinery, various machine tools, and various industrial sectors. Mechanized and automated hydraulic systems have a certain pressure Petroleum-based (such as mineral oil, soluble oil, hydraulic oil, fuel oil, lubricating oil) and water-based liquid (such as emulsion, oil-water emulsion, water) and pipelines for liquid transmission. [0003] The inner rubber layer of the high-pressure rubber hose has the function of making the conveying medium withstand pressure and protecting the steel wire from erosion, and the ou...

AI Technical Summary

Problems solved by technology

At present, the rubber of high-pressure rubber hose still has some properties that need to be improved, such as aging resistance, heat resistance, low temperature resistance, acid and alkali resistance, corrosion resistance, strength, ultraviolet resistance, flame retardancy, wear resistance, toughness, impact resistance and other properties. It is not satisfactory, and the production cost is also high; it is necessary to modify the performance of the rubber hose to improve reliability and stability, prolong the service life, reduce the frequency of maintenance and replacement, and improve the production efficiency and safety of construction machinery and coal mining machinery.