Diatomite acid etching reaction device for preparing biomimetic composite functional structure

Abstract

The invention provides a hydrofluoric acid and diatomite acid etching forming reaction device for preparing a bionic composite functional structure, including a handle, a threaded rod, an acid injection port, an upper platen, an enclosure, a pressure equalizing pad, an ultrasonic vibrator, and a bottom plate , acid discharge catheter, heating wire, thickened vertical wall, acid discharge hole, bionic surface negative template, support column, belonging to the field of bionic functional structure manufacturing. The biomimetic composite functional structure formed by the present invention can not only reproduce the microstructure of the biomimetic surface positive mold on the surface with high fidelity, but also retain the adsorption and slow-release porous channels of diatomite particles inside, and the structure itself is also Has good mechanical strength.

Description

technical field [0001] The invention provides a hydrofluoric acid and diatomite acid etching molding reaction device for preparing a bionic composite functional structure, which belongs to the field of bionic functional structure manufacturing. Background technique [0002] Many organisms have gradually formed biological complex structures with unique structural and functional properties during the long-term evolution process. For example, in addition to the micron-scale papillae-like biological non-smooth morphology on the surface of the lotus leaf, it also has a nano-scale biological wax secretion structure. The desorption function is called the "lotus leaf effect". In addition to the micron-scale groove-like biological non-smooth morphology of the shark's epidermis, there is also a nano-scale drag-reducing fluid secretion structure under its scales. The coupling effect of the two makes the shark The skin has excellent shape and interface composite drag reduction function...

AI Technical Summary

Problems solved by technology

However, due to the acid etching reaction between diatomite and hydrofluoric acid, not only the reaction conditions are harsh, for example, the acid solution needs to be in full contact with the diatomite in the early stage of the reaction, and a certain pressure and temperature must be applied, while the pressure cannot be applied in the later stage of the reaction, and the reaction process Poor controllability, accompanied by a large amount of heat and gas release, which puts forward high requirements for the design of related reaction devices, but so far there is no relevant information about hydrofluoric acid and diatomite acid etching specially used to prepare biomimetic composite functional structures. Report on molding reaction device

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