Modified PBAT biodegradable plastic and preparation method thereof

• Main Authors: SONG FANGPING, LIU YONG, HANG LAIBAO
• Format: Patent
• Language: Chinese; English
• Published: 08.12.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The modified PBAT biodegradable plastic is prepared from the following raw materials in parts by weight: 60-70 parts of PBAT, 10-20 parts of starch, 4-6 parts of cellulose nanocrystals, 4-5 parts of a natural fiber reinforcing agent, 2-3 parts of a plasticizer, 2-5 parts of epoxy modified organic silicon resin, 2-5 parts of a stabilizer, 2-5 parts of hyphatin, 1-2 parts of vegetable fat and 0.5-1 part of fish scale powder. According to the invention, PBAT is adopted as a base material, so that the material has certain biodegradability. PBAT is aliphatic polyester and can be degraded by microorganisms, degradable reinforcing fillers such as starch, cellulose nanocrystals and natural fibers are introduced, and the biodegradability of the material is further improved. Epoxy modified organic silicon resin is adopted for crosslinking modification, so that the mechanical property and heat resistance of the material can be improved. 本发明公开了一种改性PBAT生物降解塑料，包含以下各成分的重量百分比原料：PBAT60～70份、淀粉10～20份、纤维素纳米晶体4～6份、天然纤维增强剂4～5份、塑化剂