Improvement of mechanical properties of Poly (l-lactic acid) by blending of lysine triisocyanate

Mitsugu Todo, Tetsuo Takayama

研究成果: ジャーナルへの寄稿記事

10 引用 (Scopus)

抄録

LTI was attempted to modify the microstructure of poly (l-lactic acid) (PLLA) and to improve its mechanical properties in this study. Bending modulus, strength and fracture toughness of PLLA/LTI were evaluated, and compared to those of the base PLLA to assess the effectiveness of LTI blending. Effect of LTI addition on fracture micromechanism was also investigated by observing and comparing the fracture surfaces of PLLA/LTI and PLLA using a field emission scanning electron microscope (FE-SEM). Experimental results showed that the bending properties such as the bending modulus and the strength are effectively improved due to polymerization of PLLA molecules by LTI blending. The fracture toughness value was also improved due to increase of ductile deformation, i.e., energy dissipation in the crack-tip region.

元の言語英語
ページ(範囲)4712-4715
ページ数4
ジャーナルJournal of Materials Science
42
発行部数12
DOI
出版物ステータス出版済み - 6 1 2007

Fingerprint

Lactic acid
Lactic Acid
Mechanical properties
Fracture toughness
Crack tips
Field emission
Energy dissipation
Electron microscopes
Polymerization
lysine triisocyanate
Scanning
Microstructure
Molecules

All Science Journal Classification (ASJC) codes

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

これを引用

Improvement of mechanical properties of Poly (l-lactic acid) by blending of lysine triisocyanate. / Todo, Mitsugu; Takayama, Tetsuo.

:: Journal of Materials Science, 巻 42, 番号 12, 01.06.2007, p. 4712-4715.

研究成果: ジャーナルへの寄稿記事

@article{4095cf28521e4dd99ba32d52eb87854c,
title = "Improvement of mechanical properties of Poly (l-lactic acid) by blending of lysine triisocyanate",
abstract = "LTI was attempted to modify the microstructure of poly (l-lactic acid) (PLLA) and to improve its mechanical properties in this study. Bending modulus, strength and fracture toughness of PLLA/LTI were evaluated, and compared to those of the base PLLA to assess the effectiveness of LTI blending. Effect of LTI addition on fracture micromechanism was also investigated by observing and comparing the fracture surfaces of PLLA/LTI and PLLA using a field emission scanning electron microscope (FE-SEM). Experimental results showed that the bending properties such as the bending modulus and the strength are effectively improved due to polymerization of PLLA molecules by LTI blending. The fracture toughness value was also improved due to increase of ductile deformation, i.e., energy dissipation in the crack-tip region.",
author = "Mitsugu Todo and Tetsuo Takayama",
year = "2007",
month = "6",
day = "1",
doi = "10.1007/s10853-007-1797-1",
language = "English",
volume = "42",
pages = "4712--4715",
journal = "Journal of Materials Science",
issn = "0022-2461",
publisher = "Springer Netherlands",
number = "12",

}

TY - JOUR

T1 - Improvement of mechanical properties of Poly (l-lactic acid) by blending of lysine triisocyanate

AU - Todo, Mitsugu

AU - Takayama, Tetsuo

PY - 2007/6/1

Y1 - 2007/6/1

N2 - LTI was attempted to modify the microstructure of poly (l-lactic acid) (PLLA) and to improve its mechanical properties in this study. Bending modulus, strength and fracture toughness of PLLA/LTI were evaluated, and compared to those of the base PLLA to assess the effectiveness of LTI blending. Effect of LTI addition on fracture micromechanism was also investigated by observing and comparing the fracture surfaces of PLLA/LTI and PLLA using a field emission scanning electron microscope (FE-SEM). Experimental results showed that the bending properties such as the bending modulus and the strength are effectively improved due to polymerization of PLLA molecules by LTI blending. The fracture toughness value was also improved due to increase of ductile deformation, i.e., energy dissipation in the crack-tip region.

AB - LTI was attempted to modify the microstructure of poly (l-lactic acid) (PLLA) and to improve its mechanical properties in this study. Bending modulus, strength and fracture toughness of PLLA/LTI were evaluated, and compared to those of the base PLLA to assess the effectiveness of LTI blending. Effect of LTI addition on fracture micromechanism was also investigated by observing and comparing the fracture surfaces of PLLA/LTI and PLLA using a field emission scanning electron microscope (FE-SEM). Experimental results showed that the bending properties such as the bending modulus and the strength are effectively improved due to polymerization of PLLA molecules by LTI blending. The fracture toughness value was also improved due to increase of ductile deformation, i.e., energy dissipation in the crack-tip region.

UR - http://www.scopus.com/inward/record.url?scp=34547260324&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34547260324&partnerID=8YFLogxK

U2 - 10.1007/s10853-007-1797-1

DO - 10.1007/s10853-007-1797-1

M3 - Article

AN - SCOPUS:34547260324

VL - 42

SP - 4712

EP - 4715

JO - Journal of Materials Science

JF - Journal of Materials Science

SN - 0022-2461

IS - 12

ER -