BIODEGRADABLE RESIN COMPOSITION, AND DRAINING BOARD CORE MATERIAL AND DRAINING BOARD PRODUCED THEREFROM

摘要

A biodegradable resin composition is provided. More particularly, a biodegradable resin composition for a core of a drain board, which has excellent extrusion productivity and thus improves productivity by improving physical properties, for example, reducing contractibility and elasticity recovery, according to original characteristics of a biodegradable resin without degradation in biodegrability of the biodegradable resin by mixing the biodegradable resin with an additional material for improving processibility in suitable amounts, a core of a drain board using the same, and a method of manufacturing a drain board. The biodegradable resin composition is prepared by mixing 5 to 60 parts by weight of calcium carbonate, 1 to 10 parts by weight of a thermoplastic resin, and 0.1 to 5 parts by weight of a lubricant with respect to 100 parts by weight of a biodegradable polymer compound, or mixing 1 to 5 parts by weight of the additives, which are formed in a pellet state to have 60 to 90 parts by weight of calcium carbonate, 5 to 15 parts by weight of a thermoplastic resin, and 1 to 5 parts by weight of a lubricant, with respect to 100 parts by weight of a biodegradable polymer compound.