Poly(butyleneadipate-co-terephthalate) (PBAT) is a biodegradable aliphatic aromatic linear copolyester. The foamed material based on PBAT has the characteristics of light weight

high porosity

good flexibility

high energy absorption and heat insulation

as well as excellent biodegradability and biocompatibility. Therefore

it has great application prospects in packaging

transportation

aerospace

biomedicine and other fields. Aiming at the shortcomings of low melt strength and narrow processing temperature window in the foaming process of PBAT

this paper introduces in detail the research on PBAT modification method and foaming technology in recent years

and elaborates the structural characteristics of PBAT foam material and its preparation method

focusing on the regulation of foaming performance

via

different modification methods. It is expected to provide a reference for the further research of PBAT foaming materials.