TECHNOLOGY FOR PRODUCTION HYDROPHOBIC STARCH FOR THE APPLICATION AS BIODEGRADABLE PACKAGING MATERIALS
The present invention represents a new ecological process for the production of hydrophobic starch for the preparation of new biodegradable composite materials for use in the packaging industry. The technological process consists of two phases. The first phase refers to the process of hydrophobization of starch with plasticizers such as: dipentanoyl tartrate anhydride (P1), di-5-methylfuran-2-carbonyl tartrate anhydride (P2), di (8-(3-(2-((5-methylhexa-1,5-dien-2-yl)oxy)octyl)oxiran-2-yl) octanoyl tartrate anhydride (P3), di (2-ethylhexyl) furan-2,5-dicarboxylate (P4), di (2-octyl) furan-2,5-dicarboxylate (P5), dihexyl furan-2,5-dicarboxylate (P6) and dibutyl furan-2,5-dicarboxylate (P7) and then the resulting plasticized starch is mixed with MAPP or MAPE in a mold at a temperature of 130-220°C. The second phase refers to the preparation of biodegradable packaging composites with modified / hydrophobic starch and polymer matrix (EAA and EMAA). The two-phase process of obtaining hydrophobic starch yields a product that can be used as a filler to contribute to biodegradability in the production of packaging materials.
Publication date: 31/08/2021
Number: RS20200207A1 (A1)
Applicant: TEHNOLOSKO METALURSKI FAKULTET?[RS]
Inventor: TOMI? NATAŠA?[RS]; MARINKOVI? ALEKSANDAR?[RS] (5)