Relationship between fracture mechanism and microstructure in PLA/PCL polymer blends

Tetsuo Takayama; Mitsugu Todo; Kazuo Arakawa

doi:10.4028/0-87849-456-1.1169

Relationship between fracture mechanism and microstructure in PLA/PCL polymer blends

Tetsuo Takayama, Mitsugu Todo, Kazuo Arakawa

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

PLA/PCL and PLA/PCL/LTI blends were developed to improve the fracture properties of biodegradable PLA. LTI was blended to improve the miscibility of PLA and PCL. It was shown that the fracture toughness values were dramatically increased due to LTI addition. SEM results also exhibited that PCL spherulites decreases due to LTI addition and therefore, void formation is reduced and local stress concentration is suppressed, resulting in the improvement of the toughness values. The improved miscibility is also closely related to the enhancement of ductile deformation; as a result, the fracture toughness is increased.

Original language	English
Pages (from-to)	1169-1172
Number of pages	4
Journal	Key Engineering Materials
Volume	353-358
Issue number	PART 2
DOIs	https://doi.org/10.4028/0-87849-456-1.1169
Publication status	Published - 2007
Event	Asian Pacific Conference for Fracture and Strength (APCFS'06) - Sanya, Hainan Island, China Duration: Nov 22 2006 → Nov 25 2006

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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title = "Relationship between fracture mechanism and microstructure in PLA/PCL polymer blends",

abstract = "PLA/PCL and PLA/PCL/LTI blends were developed to improve the fracture properties of biodegradable PLA. LTI was blended to improve the miscibility of PLA and PCL. It was shown that the fracture toughness values were dramatically increased due to LTI addition. SEM results also exhibited that PCL spherulites decreases due to LTI addition and therefore, void formation is reduced and local stress concentration is suppressed, resulting in the improvement of the toughness values. The improved miscibility is also closely related to the enhancement of ductile deformation; as a result, the fracture toughness is increased.",

author = "Tetsuo Takayama and Mitsugu Todo and Kazuo Arakawa",

year = "2007",

doi = "10.4028/0-87849-456-1.1169",

language = "English",

volume = "353-358",

pages = "1169--1172",

journal = "Key Engineering Materials",

issn = "1013-9826",

publisher = "Trans Tech Publications",

number = "PART 2",

note = "Asian Pacific Conference for Fracture and Strength (APCFS'06) ; Conference date: 22-11-2006 Through 25-11-2006",

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TY - JOUR

T1 - Relationship between fracture mechanism and microstructure in PLA/PCL polymer blends

AU - Takayama, Tetsuo

AU - Todo, Mitsugu

AU - Arakawa, Kazuo

PY - 2007

Y1 - 2007

N2 - PLA/PCL and PLA/PCL/LTI blends were developed to improve the fracture properties of biodegradable PLA. LTI was blended to improve the miscibility of PLA and PCL. It was shown that the fracture toughness values were dramatically increased due to LTI addition. SEM results also exhibited that PCL spherulites decreases due to LTI addition and therefore, void formation is reduced and local stress concentration is suppressed, resulting in the improvement of the toughness values. The improved miscibility is also closely related to the enhancement of ductile deformation; as a result, the fracture toughness is increased.

AB - PLA/PCL and PLA/PCL/LTI blends were developed to improve the fracture properties of biodegradable PLA. LTI was blended to improve the miscibility of PLA and PCL. It was shown that the fracture toughness values were dramatically increased due to LTI addition. SEM results also exhibited that PCL spherulites decreases due to LTI addition and therefore, void formation is reduced and local stress concentration is suppressed, resulting in the improvement of the toughness values. The improved miscibility is also closely related to the enhancement of ductile deformation; as a result, the fracture toughness is increased.

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DO - 10.4028/0-87849-456-1.1169

M3 - Conference article

AN - SCOPUS:36049024961

SN - 1013-9826

VL - 353-358

SP - 1169

EP - 1172

JO - Key Engineering Materials

JF - Key Engineering Materials

IS - PART 2

T2 - Asian Pacific Conference for Fracture and Strength (APCFS'06)

Y2 - 22 November 2006 through 25 November 2006

ER -

Relationship between fracture mechanism and microstructure in PLA/PCL polymer blends

Abstract

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