MGM develops microencapsulation plants for the production of high-resistance materials, ideal for transmitting energy in form of vibrations, such as aluminium and titan alloys. It’s about a new generation technique, developed on the basis of the observation of naturally-occurring material: quartz. This technique is based on the use of special ceramics, subjected to alternating voltage.

Special MGM’s equipment are able to master this technique, in order to transmit vibrations to elements. This is applied primarly to chemical industry and pharmaceutocal industry, for production of pesticides or for microencapsulation of active substances.

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Dropping fluid-drops on piezoceramics (ceramics subjected to ultrasonic vibration)

it breaks down into microscopic bubbes, causing cold-boiling. It’s necessary to connect ceramics to a booster and a sonotrode, so that vibration are trasmetted to materials.

This technique is particularly useful in the medical field, for instance for aerosol therapy. It is used to create powders compoed by perfectly geometric microspheres (nebulization) or drops to be dried, according to the choosen frequency. Instruments for microencapsulation and nebulization are used in pharmaceutical, chemical and aliemntaty industri, to carry out preserving treatments on substances.

MICROINCAPSULAZIONE

The microencapsulation unity is composed by a power generator

and tools for vibration trasmssion (transductor, booster, sonotrode), fed into fluids and low-melting materials, such as waxes, heated through a double wall, containing water. It is possible to replace the final part of microencapsulation plant, so that it can be used for liquids of any viscosity and density.
The dimension of drops (then cooled by liquid nitrogen) depends on the crevice, through which nebulization takes place. The advantages of microencapsulation technique are reduction of work areas and optimization of spaces.

During the final stage, perfectly spheric shaped, tiny drops are collected in the form of a free-flowing micropowder. Depending on the atomized material, the result could be ready-to-use, or could need further processing. In the case of Spry Congealing the product is collected on the cell bottom continuously and completely. In the case of Spry Drying, the product must undergo the liofilization procedure, in order to remove fluids and solvents.

Finally, the third type of process incapsules drops in a matrix, composed by fat materials, that create solid materials at room temperature. Micoencapsulation techniques make it possible to process harmful or toxic materials, or food preservation through immediate freezing.

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