Improvement of impact fracture properties of PLA/PCL polymer blend due to LTI addition

Tetsuo Takayama, Mitsugu Todo

研究成果: ジャーナルへの寄稿記事

91 引用 (Scopus)

抄録

The use of lysine triisocyanate (LTI) as an additive for PLA/PCL polymer blends to improve its impact fracture properties was discussed. Effects of LTI addition on fracture micromechanism was also investigated by observing their fracture surfaces using a scanning electron microscope (SEM). The size reduction of spherulites were observed which suggests that the miscibility of PLA and PCL can be improved by LTI addition. These micrographs also indicate the reduction of crystallinity due to LTI addition. Change of phase Morphology lowers localized stress concentration caused by interfacial failures, and as a result, more energy is dissipated during the fracture process of well-blended continuous phase in PLA/PCL/LTI.

元の言語英語
ページ(範囲)4989-4992
ページ数4
ジャーナルJournal of Materials Science
41
発行部数15
DOI
出版物ステータス出版済み - 8 1 2006

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Polymer blends
Stress concentration
Electron microscopes
Solubility
Scanning
lysine triisocyanate

All Science Journal Classification (ASJC) codes

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

これを引用

Improvement of impact fracture properties of PLA/PCL polymer blend due to LTI addition. / Takayama, Tetsuo; Todo, Mitsugu.

:: Journal of Materials Science, 巻 41, 番号 15, 01.08.2006, p. 4989-4992.

研究成果: ジャーナルへの寄稿記事

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AB - The use of lysine triisocyanate (LTI) as an additive for PLA/PCL polymer blends to improve its impact fracture properties was discussed. Effects of LTI addition on fracture micromechanism was also investigated by observing their fracture surfaces using a scanning electron microscope (SEM). The size reduction of spherulites were observed which suggests that the miscibility of PLA and PCL can be improved by LTI addition. These micrographs also indicate the reduction of crystallinity due to LTI addition. Change of phase Morphology lowers localized stress concentration caused by interfacial failures, and as a result, more energy is dissipated during the fracture process of well-blended continuous phase in PLA/PCL/LTI.

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