Preparation Of Conical Microrockets And Investigation Of Acceleration Methods

Nanotechnology is an emerging technology developed in the21st century.Combining with the traditional application areas of physical, chemical andmechanical, It forms a lot of new research fields, such as nano-materials, nano-biology, nano mechanics and so on. Microrocket is a actuator ranging bettwenmicro and nano scale, which can transfer the chemical energy into mechanicalenergy through its own media environment. As a result, it can achieve the spiralrotation, directional movement, particle reorganization or other functions. In recentyears, scholars developed a range of microrockets. Different microrockets, whichcan be used in diverse fields ranging from drug targeting, tissue examination,precision micro-surgery, or environmental restoration, have different structuralshapes, proplution mechanisms and track control methods. Currently, mostly self-propelled microrockets provide forward momentum for themselves throughcatalyzing hydrogen peroxide by Pt, which way is not only expensive, but alsodepends on solution of hydrogen peroxide seriously. At the same time, the dragforce between microrockets and solution is big, which leads to the low speed.Therefore, this paper aims to prepare new microrockets which are suitable forhuman acidic gastric environment by electrodeposition and develop new speedacceleration ways. Specific research mainly includes the following aspects:Prepare novel and suitable for human gastric environment polyaniline-zincnanomotor; Establish theoretical model of polyaniline-zinc nanomotor; do stressanalysis of nanomotor’s movement in acidic media environment; determine thefactors affecting nanomotor’s velocity and discuss the movement discipline ofnanomotor.Discuss the contact angle model of ideal solid surface; Considering the actualobject surface roughness and heterogeneity, the contact angle model of the idealsurface is corrected. Explore the relationship of the rough surface’s contact angleand solid-liquid drag reduction. Study the influence of polyaniline surfacewettability after self-assembly hydrophobic. Analysis the speed of the polyaniline-zinc nanomotors after modificating the polyaniline surface.Analysis the drag reduction mechanism of the nanomotor and medium, andestablish a new model of micro-bubble drag reduction mechanism. Prepare copper–zinc nanomotors based on the principles of primary cell. Analyze the speed ofcopper-zinc nanomotor in the acidic medium and compare with the speed ofpolyaniline-zinc nanomotors. Analysis the speed impact on the self-assemble hydrophobic molecules layer copper-zinc nanomotors.