Geng, Lihong Li, Lengwan Mi, Haoyang Chen, Binyi Sharma, Priyanka Ma, Hongyang Hsiao, Benjamin S. Peng, Xiangfang Kuang, Tairong Superior Impact Toughness and Excellent Storage Modulus of Poly(lactic acid) Foams Reinforced by Shish-Kebab Nanoporous Structure Poly­(lactic acid) (PLA) foams, with the combination of shish-kebab and spherulite nanoporous structure in skin and core layer respectively, was prepared using a novel technique comprising loop oscillating push–pull molding (LOPPM) and supercritical carbon dioxide low-temperature foaming process (SC−CO<sub>2</sub>LTFP). The foams present superior impact toughness which is 6-fold higher than that of neat PLA, and no significant decrease was observed for the storage modulus. Moreover, SC−CO<sub>2</sub>LTFP at soaking temperature ranging from 110 to 150 °C were performed to determine the evolution of pore morphology. The ultratough and supermoduli are unprecedented for PLA, and are in great need for broader applications. carbon dioxide;novel technique;storage modulus;Superior Impact Toughness;foaming process;SC;acid;impact toughness;core layer;pore morphology;LTFP;LOPPM;Excellent Storage Modulus;Poly;spherulite nanoporous structure;PLA;Foams Reinforced 2017-06-08
    https://acs.figshare.com/articles/journal_contribution/Superior_Impact_Toughness_and_Excellent_Storage_Modulus_of_Poly_lactic_acid_Foams_Reinforced_by_Shish-Kebab_Nanoporous_Structure/5119690
10.1021/acsami.7b05127.s001