Tunable shape recovery of polymeric nano-composites

Hongsheng Luo, Jinlian Hu, Yong Zhu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

32 Citations (Scopus)

Abstract

Polymeric nano-composites of different compositions were synthesized by incorporating cellulose nanowhiskers (CNW) into shape memory polyurethane (SMPU). The morphology and the dynamic mechanical properties of the composites were investigated by Scanning Electronic Microscopy (SEM) and Dynamic Mechanical Analysis (DMA). After extension in a specifically explored thermal-aqueous process, the thermalinduced shape recovery of the composites in the dry-state was found being negative proportional to the CNW content. This finding may provide a composite approach, rather than molecular design, to tune the shape memory behaviors of the conventional shape memory polymers and may contribute to the application of nano-technology in smart materials field.
Original languageEnglish
Pages (from-to)3583-3585
Number of pages3
JournalMaterials Letters
Volume65
Issue number23-24
DOIs
Publication statusPublished - 1 Jan 2011

Keywords

  • Cellulose nano-whiskers
  • Nano-composites
  • Shape memory polyurethane
  • Tunable shape recovery

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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