PBAT yog cov yas thermoplastic biodegradable. Nws yog ib qho copolymer ntawm butanediol adipate thiab butanediol terephthalate. Nws muaj cov yam ntxwv ntawm PBA thiab PBT. Nws tsis yog tsuas yog muaj kev ywj pheej zoo thiab elongation thaum tawg, tab sis kuj zoo tiv taus cua sov thiab cuam tshuam; Tsis tas li ntawd, nws kuj muaj biodegradability zoo heev. Nws yog ib qho ntawm cov khoom siv biodegradable tshaj plaws hauv kev tshawb fawb ntawm cov yas biodegradable thiab yog ib qho ntawm cov khoom siv degradable zoo tshaj plaws hauv kev ua lag luam.
PBAT yog ib qho polymer semi crystalline. Qhov kub ntawm crystallization feem ntau yog li ntawm 110 ℃, qhov melting point yog li ntawm 130 ℃, thiab qhov ceev yog ntawm 1.18g / ml thiab 1.3g / ml. Lub crystallinity ntawm PBAT yog li ntawm 30%, thiab qhov nyuaj ntawm ntug dej hiav txwv yog ntau dua 85. PBAT yog ib qho copolymer ntawm aliphatic thiab aromatic polyesters, uas ua ke cov khoom zoo heev ntawm aliphatic polyesters thiab cov khoom siv kho tshuab zoo ntawm aromatic polyesters. Kev ua haujlwm ntawm PBAT zoo ib yam li LDPE. Cov khoom siv ua LDPE tuaj yeem siv rau kev tshuab zaj duab xis.