Preparation of biodegradable PBST/PLA microcellular foams under supercritical CO2: Heterogeneous nucleation and anti-shrinkage effect of PLA
Polymer Degradation and Stability（2022）
Abstract
•A series of fully biodegradable PBST/PLA blending foams were prepared.•The presence of PLA in PBST could facilitate cell nucleation and open-cell structure formation.•The addition of PLA could effectively solve shrinkage problem of PBST foams.•80/20 blend of PBST and PLA exhibited the highest expansion ratio of 17 without shrinkage.
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Key words
Poly(butylene succinate-co-butylene terephthalate),Poly (lactic acid),Supercritical CO2,Microcellular foam,Anti-shrinkage
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