Method for producing radiation-vulcanized ethylene propylene diene monomer flame-retardant automobile rubber tube

Abstract

The invention provides a method for producing a radiation-vulcanized ethylene propylene diene monomer flame-retardant automobile rubber tube, and relates to the technical production of automobile auxiliary radiator rubber tube production. The method comprises the following steps: premixing ethylene propylene diene monomer, aluminum peroxide, organic zinc, stearic acid, an anti-aging agent, a crosslinking agent, an antioxidant, paraffin and an accelerant into an open mill or internal mixer to form a rubber compound; cooling the rubber compound to room temperature, continuously extruding and molding by a single-screw extruder; performing radiation crosslinking by an electronic accelerator to form the automobile rubber tube under a condition that the radiation dosage is 100-150KGy. According to the method, the rubber tube is subjected to radiation crosslinking by utilizing an electron beam radiation technology, the performance of the rubber tube can be greatly improved, and the radiation process is performed at normal temperature and normal pressure; the rubber tube has the advantages of saving energy and protecting environment, shortening the vulcanization time and improving the vulcanization effect; the high (low) temperature performance, ozone resistance, coolant resistance and oil resistance of the formed product can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of production of auto parts—radiator rubber hoses. Background technique [0002] Automotive hoses work in high-temperature and flammable environments. In the past, sulfur vulcanization systems were used. After sulfur vulcanization, the properties of the hose such as low compression deformation, high temperature resistance, and coolant resistance are not easy to meet the requirements for use. In addition, in the event of a fire , will produce toxic and corrosive gases such as sulfur oxides, which will not only cause corrosive damage to the car as a whole, but also affect the evacuation of personnel. Moreover, there are chemical residues in the sulfur vulcanization system after vulcanization, which also has a great impact on the aging resistance of the rubber hose. [0003] With the rapid development of the automobile industry, the requirements for the environment and safety of the vehicle are getting higher ...

AI Technical Summary

Problems solved by technology

[0002] Automotive rubber hoses work in high-temperature and flammable environments. In the past, sulfur vulcanization systems were used. After sulfur vulcanization, the properties of the rubber hose, such as low compression deformation, high temperature resistance, and coolant resistance, are not easy to meet the requirements for use. In addition, in the event of a fire , will produce toxic and corrosive gases such as sulfur oxide compounds, which will not only cause corrosive damage to the car as a whole, but also affect the evacuation of personnel

Moreover, there are chemical residues in the sulfur vulcanization system after vulcanization, which also has a great impact on the aging resistance of the rubber hose.

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