Tensile properties of PLLA/PCL composites filled with nanometer calcium carbonate

Ji Zhao Liang, De Rong Duan, Chak Yin Tang, Chi Pong Tsui, Da Zhu Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

33 Citations (Scopus)

Abstract

The tensile properties of poly (l-lactic acid) (PLLA) and polycaprolactone (PCL) composites filled with nanometer calcium carbonate (nano-CaCO3) were measured at room temperature and different tensile rates. With increase of the PCL weight fraction, the tensile elastic modulus, tensile strength and tensile strength at fracture for the PLLA/PCL/nano-CaCO3composites decreased nonlinearly, and it increased slightly with increasing tensile rate. When the PCL weight fraction was less than 60%, the elongation at break for the composites increased slightly and then it increased sharply. This indicated that PCL was beneficial to improve the tensile fracture toughness of the composites.
Original languageEnglish
Pages (from-to)617-621
Number of pages5
JournalPolymer Testing
Volume32
Issue number3
DOIs
Publication statusPublished - 2 Apr 2013

Keywords

  • Biopolymer
  • Composite
  • Nano-CaCO 3
  • Tensile mechanical property

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

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