| 摘要 |
<p>The purpose of the present invention is to improve productivity and save production costs by overcoming formability and heat resistance. Specifically, the purpose of the present invention is to provide a method for manufacturing a resin sheet having improved biodegradability as well as physical properties and improved processability and heat resistance, by using, as a raw material, a biodegradable resin that has excellent natural biodegradability and is readily accessible, thereby significantly reducing manufacturing costs, and, particularly, adding a biodegradable material to polyethylene or polypropylene as a base resin. The resin sheet for manufacturing a biodegradable food container according to the present invention comprises: 5-80 wt% of basic resins including polyethylene or polypropylene resin; 1-15 wt% of a plasticizer formed of one or a mixture of two or more selected from the group consisting of glycerin, sorbitol, oleic acid, ethylene glycol, and glycerol monostearate; 5-50 wt% of a biodegradable material composed of at least one selected from the group consisting of polylactic acid starch, polycaprolactone, polyhydroxy alkanoate, and polyhydroxy butyrate; and 5-45 wt% of an auxiliary additive selected from the inorganic filer group consisting of calcium carbonate, talc, clay, and zeolite. [Reference numerals] (11) Hopper; (12) Main feeder; (13) Main cylinder (extruder); (20) Roller; (22) Cutter; (AA) Control box; (BB) Loading</p> |
