Effects of lysine triisocyanate on the mode i fracture behavior of polymer blend of poly (l-lactic acid) and poly (butylene succinate-co-l-lactate)

Vilay Vannaladsaysy, Mitsugu Todo, Tetsuo Takayama, Mariatti Jaafar, Zulkifli Ahmad, Korakanh Pasomsouk

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28 Citations (Scopus)

Abstract

A study was conducted to investigate the effect of lysine triisocynate (LTI) on the mode I fracture behavior of polymer blend of poly(L-lactic acid) (PLLA) and poly(butylene succinate-co-L-lactate) (PBSL). Pelletized PLLA and PBSL were blended using a conventional melt-mixer at 190°C and a rotor speed of 50 rpm for 20 minutes. The mode I fracture tests of the SENB specimens were carried out at a loading rate of 1 mm/min using a servohydraulic testing machine. The high resolution field emission scanning electron microscope (FE-SEM) was used to determine the microstructures of the blends. It was observed that mode I fracture properties of PLLA/PBSL polymer blends improved significantly by the addition of LTI. Addition of LTI into PLLA/PBSL caused an improvement in the immiscibility between PLLA and PBSL, which further caused suppression spherulite formation of PBSL.

Original languageEnglish
Pages (from-to)3006-3009
Number of pages4
JournalJournal of Materials Science
Volume44
Issue number11
DOIs
Publication statusPublished - Jun 2009

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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