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TPEE-Thermoplastic Polyester Elastomer is block copolymer containing hard polyester and soft polyether segments. The soft segment of polyether and uncrystallized polyester form an amorphous phase, while the hard segment of polyester partially crystallizes to form a crystalline micro-zone that acts as a physical cross-linking point.

PBAT is copolymer of butylene adipate and butylene terephthalate, which belongs thermoplastic biodegradable plastics. It holds the characteristics of both aliphatic PBA and aromatic PBT, with good ductility and elongation at break, as well as good heat resistance and impact properties. It combines excellent degradation performance of aliphatic polyester and good mechanical properties of aromatic polyester, and has high comprehensive value among biodegradable plastics.

THF is a class of heterocyclic organic compounds. It is one of the strong polar ethers and is used as a medium grade non proton solvent in chemical reactions and extraction. It is colorless and volatile liquid with an odor similar to ether. It can be soluble in most organic solvents such as water, ethanol, ether, acetone, benzene, etc.