A method for improving the performance of carbon black filled rubber by electron beam irradiation modification of carbon black

Abstract

The invention discloses a method for modifying carbon black to improve the performance of carbon black filled rubber through the irradiation of electron beams, relating to the field of material preparation, inorganic materials and polymer materials. The method for modifying carbon black to improve the performance of carbon black filled rubber through the irradiation of electron beams is characterized in that carbon black is modified through the irradiation of an electron beam irradiation device, so that the specific surface area, average grain diameter, particle size distribution uniformity and surface oxygen-contained functional group content of carbon black are changed, and the change of the characters ensures that the interaction of carbon black rubber is changed when the carbon black modified through irradiation is filled into rubber. The irradiation parameters are as follows: the irradiation voltage range is 1-50MeV; the digit rate range is 1-40mA; the irradiation dose range is 100-600kGy. The specific surface area and average particle size of the modified carbon black disclosed by the invention are reduced, the particle size distribution uniformity of the modified carbon black is improved, and meanwhile, the surface oxygen-contained functional group content is increased. The actions of carbon black filler and rubber molecular chains are enhanced, and the performance of the filled rubber is improved.

Description

technical field [0001] The invention relates to the fields of material preparation, inorganic materials and polymer materials, in particular to a method for modifying carbon black through electron beam irradiation technology, and the radiation-modified carbon black can improve the performance of its filling rubber Background technique [0002] Carbon black is the most important reinforcing agent in the tire industry, especially in the rubber industry. The addition of carbon black can enhance the wear resistance, shear resistance, tear resistance, grip, hardness and strength of vulcanized rubber. However, as the concept of environmental protection is deeply rooted in the hearts of the people, higher requirements have been put forward for the environmental protection and energy saving of automobiles. During the driving process of the car, a lot of fine rubber particles will be produced due to the wear of the tires. The generation of these particles has made a certain contribut...

AI Technical Summary

Problems solved by technology

At present, the domestic modification technology of reinforcing materials (carbon black, white carbon black) is mainly chemical modification, that is, through the interaction of some chemical substances and reinforcing materials, the surface functional groups of the reinforcing materials are combined with chemical bonds. One end of this type of chemical substance is connected to the reinforcing material, and the other end has better compatibility and reaction tendency with the rubber molecular chain, thereby improving the effect of the reinforcing material and the rubber molecular chain, and achieving the effect of improving the reinforcing effect, but This kind of modification method also has obvious disadvantages. The remaining substances in this kind of substances do not react with the reinforcing material and the rubber molecular chain, which is harmful to the performance of the rubber. At the same time, it will slowly change from the rubber pollute the environment

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