Silver particle carrying granular biodegradable plastic

Abstract

To provide a granular resin simultaneously realizing an antibacterial function and a biodegradable function, and a product using the same, and also to provide a technique to produce a biodegradable resin with an adhesion of silver having an antibacterial properties to achieve thereof.SOLUTION: Silver is used as a vapor deposition source and a granular biodegradable resin is used as a vapor deposition object body. A physical vapor deposition is carried out through controlling a vapor deposition temperature and a vapor deposition time of a continuous vapor deposition. An evaporation substance from the silver intermittently reaches a surface of the granular biodegradable resin and produces a silver nanoparticle on the surface of the granular biodegradable resin, to obtain a silver nanoparticle carrying granular biodegradable resin in which the silver nanoparticle is carried on the surface of the granular biodegradable resin with an appropriate adhesive force. The granular resin has an antibacterial function as well as a biodegradable function; therefore can be used for a forestry soil improvement material, antibacterial daily necessaries, or the like, in line with a recycling-oriented society.SELECTED DRAWING: Figure 4

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