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Superior Impact Toughness and Excellent Storage Modulus of Poly(lactic acid) Foams Reinforced by Shish-Kebab Nanoporous Structure.
Geng, Lihong; Li, Lengwan; Mi, Haoyang; Chen, Binyi; Sharma, Priyanka; Ma, Hongyang; Hsiao, Benjamin S; Peng, Xiangfang; Kuang, Tairong.
Afiliação
  • Geng L; National Engineering Research Center of Novel Equipment for Polymer Processing, The Key Laboratory of Polymer Processing Engineering of Ministry of Education, South China University of Technology , Guangzhou 510640, PR China.
  • Li L; Department of Industrial Equipment and Control Engineering, School of Mechanical & Automotive Engineering, South China University of Technology , Guangzhou 510640, PR China.
  • Mi H; Department of Chemistry, Stony Brook University , Stony Brook, New York 11794-3400, United States.
  • Chen B; National Engineering Research Center of Novel Equipment for Polymer Processing, The Key Laboratory of Polymer Processing Engineering of Ministry of Education, South China University of Technology , Guangzhou 510640, PR China.
  • Sharma P; Department of Industrial Equipment and Control Engineering, School of Mechanical & Automotive Engineering, South China University of Technology , Guangzhou 510640, PR China.
  • Ma H; Department of Industrial Equipment and Control Engineering, School of Mechanical & Automotive Engineering, South China University of Technology , Guangzhou 510640, PR China.
  • Hsiao BS; Department of Chemistry, Stony Brook University , Stony Brook, New York 11794-3400, United States.
  • Peng X; Department of Chemistry, Stony Brook University , Stony Brook, New York 11794-3400, United States.
  • Kuang T; Department of Chemistry, Stony Brook University , Stony Brook, New York 11794-3400, United States.
ACS Appl Mater Interfaces ; 9(25): 21071-21076, 2017 Jun 28.
Article em En | MEDLINE | ID: mdl-28594163
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-CO2LTFP). 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-CO2LTFP 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.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Assunto da revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Ano de publicação: 2017 Tipo de documento: Article País de publicação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Assunto da revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Ano de publicação: 2017 Tipo de documento: Article País de publicação: Estados Unidos