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Enhancement in Mechanical and Shape Memory Properties for Liquid Crystalline Polyurethane Strengthened by Graphene Oxide.
Li, Yueting; Lian, Huiqin; Hu, Yanou; Chang, Wei; Cui, Xiuguo; Liu, Yang.
Afiliación
  • Li Y; Beijing Key Lab of Special Elastomer Composite Materials, College of Materials Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China. liyueting@bipt.edu.cn.
  • Lian H; College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China. liyueting@bipt.edu.cn.
  • Hu Y; Beijing Key Lab of Special Elastomer Composite Materials, College of Materials Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China. lianhuiqin@bipt.edu.cn.
  • Chang W; Beijing Key Lab of Special Elastomer Composite Materials, College of Materials Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China. huyanou@bipt.edu.cn.
  • Cui X; Beijing Key Lab of Special Elastomer Composite Materials, College of Materials Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China. changwei@bipt.edu.cn.
  • Liu Y; College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China. changwei@bipt.edu.cn.
Polymers (Basel) ; 8(7)2016 Jul 19.
Article en En | MEDLINE | ID: mdl-30974543
ABSTRACT
Conventional shape memory polymers suffer the drawbacks of low thermal stability, low strength, and low shape recovery speed. In this study, main-chain liquid crystalline polyurethane (LCPU) that contains polar groups was synthesized. Graphene oxide (GO)/LCPU composite was fabricated using the solution casting method. The tensile strength of GO/LCPU was 1.78 times that of neat LCPU. In addition, shape recovery speed was extensively improved. The average recovery rate of sample with 20 wt % GO loading was 9.2°/s, much faster than that of LCPU of 2.6°/s. The enhancement in mechanical property and shape memory behavior could be attributed to the structure of LCPU and GO, which enhanced the interfacial interactions between GO and LCPU.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Polymers (Basel) Año: 2016 Tipo del documento: Article País de afiliación: China
Texto completo
Añadir a Mi BVS
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XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Polymers (Basel) Año: 2016 Tipo del documento: Article País de afiliación: China