Application and preparation method of helical carbon nano tube

Abstract

The invention discloses application and a preparation method of a helical carbon nano tube. The helical carbon nano tube serving as a reinforcing material is used for reinforcing rubber. The preparation method includes: placing nickel oxide of the nanometer size into a quartz tube through a carrier; leading nitrogen, then hydrogen and finally acetylene, and conducting reduction to obtain primary products of the helical carbon nano tube; ultrasonic separating the primary product to obtain a deionized solution of the primary product; centrifugal separating the deionized solution to obtain a solid matter and drying; preparing mixed acid of concentrated nitric acid and concentrated sulfuric acid, adding the dried solid matter into the mixed acid, then heating to 90 DEG C and keeping the temperature for 6 hours; and separating the solid matter, washing to neutral and drying to obtain the helical carbon nano tube. The helical carbon nano tube is simple in process, low in cost and easy to achieve and is used for reinforcing the rubber. The rubber reinforced by using the helical carbon nano tube is improved on the aspects of 300% and 500% stress at definite elongation, elongation at break, hardness and abrasion compared with standard rubber reinforced by using carbon black.

Description

technical field [0001] The invention relates to the improvement of rubber reinforcement technology, specifically a method for preparing helical carbon nanotubes for rubber reinforcement, and belongs to the technical field of rubber reinforcement materials. [0002] Background technique [0003] With the development of economy and society and the improvement of people's living standards, the production and consumption of automobiles are increasing year by year. The safety problem is a problem that cars have always needed to solve, and the safety of tires is a relatively important part of car safety. [0004] The tire is made of rubber. In order to enhance the comprehensive performance of the rubber, it is necessary to add reinforcing materials to the rubber. At present, the reinforcing fillers of rubber are mainly black carbon and white carbon black. While researching traditional rubber reinforcing materials, we are also constantly developing new reinforcing filling materi...

AI Technical Summary

Problems solved by technology

[0006] At present, helical carbon nanotubes are still in the initial stage of research, the process of obtaining them is very complicated, the cost of preparation is high, and their application fields are still in the exploration stage.

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