Flame retarding rubber hose and preparation method thereof

Abstract

The invention discloses a flame retarding rubber hose and a preparation method thereof. Low-density polyethylene, ultrahigh molecular weight polyethylene and macromolecule crosslinked polyethylene are taken as raw materials, after scientific compound and vulcanization of the rubber hose, a chemical substance with excellent adhesive property is used for preparing a lining film, the adhering surface of the lining film and the adhering surface of the rubber hose are subject to corona treatment, and glass steel reinforced fibers with radiation resistance are compounded at a surface layer, so the surface layer of the rubber hose has excellent radiation resistance, safety loopholes of a conveying pipeline caused by ionizing radiation are solved, the lame retarding rubber hose with firm adhering of the lining film, high radiation resistance and capability of conveying LPG, LNG and high corrosion chemical solvents is finally prepared, absorptivity for X ray, gamma ray and various neutrons in nuclear radiation is as high as 97.5 to 99.5%, and the adhesive force (N / 25mm) of the lining film and the rubber layer is up to 160 to 180.

Description

technical field [0001] The invention relates to the preparation of rubber tubes, in particular to a flame-retardant rubber tube and a preparation method thereof. Background technique [0002] After more than 50 years of development, my country's rubber hose belt industry has played an indispensable supporting role in the national economy. Especially with the improvement of my country's mechanization level and the application of new materials, the rubber hose belt industry has continuously penetrated into related fields. The application range and fields of rubber hose belts have been opened up, and the products are widely used in coal, metallurgy, cement, ports, mines, petroleum, automobiles, textiles, light industry, engineering machinery, construction, marine, agriculture, aviation, aerospace and other fields. In recent years, the rubber hose and belt industry has adhered to the scientific development concept, and the product varieties, specifications, and quality have achie...

AI Technical Summary

Problems solved by technology

[0008] The technical problem solved by the present invention is to overcome the defects of the existing corrosion-resistant rubber tubes, using low-density polyethylene (LLDPE), ultra-high molecular weight polyethylene (UHMWPE) and polymer cross-linked polyethylene as the main raw materials, scientifically compounding and After vulcanization of the rubber tube, the lining film is prepared from chemical substances such as polyimide, tetraethylpentamine, α-sulfo fatty acid alkyl ester salt, epoxy resin, SBR latex, rosin, etc., which have excellent bonding properties. Corona treatment is carried out on the bonding surface of the inner lining film and the bonding surface of the rubber tube to enhance its cohesiveness, and the surface layer is compounded with fiberglass reinforced fiber with radiation-proof performance, so that the surface layer of the rubber tube has excellent anti-corrosion properties. radiation, especially to solve the potential safety hazards caused by ionizing radiation for pipelines transporting oil and natural gas, and finally prepare a lining film that is firmly bonded, has strong radiation resistance, and can transport LPG, LNG and strong corrosive chemical solvents. Burning rubber hose