Abstract
The effects of annealing on the mechanical properties of polymer blends of poly(lactic acid) (PLA) and poly(ε-caprolactone) (PCL) were investigated. The bending strength and modulus of PLA/PCL tend to increase due to crystallization of the PLA phase by annealing. The mode I fracture energy, J in, of PLA/PCL decreases dramatically due to the suppression of the ductile deformation of the spherical PCL phase by annealing. The immiscibility of PLA and PCL can be improved by adding lysine triisocyanate (LTI) as a result of additional polymerization. The phase transformation due to LTI addition reduces the size of the spherical PCL phase, resulting in higher fracture energy. An annealing process applied to PLA/PCL/LTI further strengthens the microstructure, resulting in effective improvement of the fracture energy.
| Original language | English |
|---|---|
| Pages (from-to) | 255-260 |
| Number of pages | 6 |
| Journal | Journal of the Mechanical Behavior of Biomedical Materials |
| Volume | 4 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Apr 1 2011 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Biomaterials
- Biomedical Engineering
- Mechanics of Materials
Cite this
Effect of annealing on the mechanical properties of PLA/PCL and PLA/PCL/LTI polymer blends. / Takayama, Tetsuo; Todo, Mitsugu; Tsuji, Hideto.
In: Journal of the Mechanical Behavior of Biomedical Materials, Vol. 4, No. 3, 01.04.2011, p. 255-260.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of annealing on the mechanical properties of PLA/PCL and PLA/PCL/LTI polymer blends
AU - Takayama, Tetsuo
AU - Todo, Mitsugu
AU - Tsuji, Hideto
PY - 2011/4/1
Y1 - 2011/4/1
N2 - The effects of annealing on the mechanical properties of polymer blends of poly(lactic acid) (PLA) and poly(ε-caprolactone) (PCL) were investigated. The bending strength and modulus of PLA/PCL tend to increase due to crystallization of the PLA phase by annealing. The mode I fracture energy, J in, of PLA/PCL decreases dramatically due to the suppression of the ductile deformation of the spherical PCL phase by annealing. The immiscibility of PLA and PCL can be improved by adding lysine triisocyanate (LTI) as a result of additional polymerization. The phase transformation due to LTI addition reduces the size of the spherical PCL phase, resulting in higher fracture energy. An annealing process applied to PLA/PCL/LTI further strengthens the microstructure, resulting in effective improvement of the fracture energy.
AB - The effects of annealing on the mechanical properties of polymer blends of poly(lactic acid) (PLA) and poly(ε-caprolactone) (PCL) were investigated. The bending strength and modulus of PLA/PCL tend to increase due to crystallization of the PLA phase by annealing. The mode I fracture energy, J in, of PLA/PCL decreases dramatically due to the suppression of the ductile deformation of the spherical PCL phase by annealing. The immiscibility of PLA and PCL can be improved by adding lysine triisocyanate (LTI) as a result of additional polymerization. The phase transformation due to LTI addition reduces the size of the spherical PCL phase, resulting in higher fracture energy. An annealing process applied to PLA/PCL/LTI further strengthens the microstructure, resulting in effective improvement of the fracture energy.
UR - http://www.scopus.com/inward/record.url?scp=79751523916&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79751523916&partnerID=8YFLogxK
U2 - 10.1016/j.jmbbm.2010.10.003
DO - 10.1016/j.jmbbm.2010.10.003
M3 - Article
C2 - 21316612
AN - SCOPUS:79751523916
VL - 4
SP - 255
EP - 260
JO - Journal of the Mechanical Behavior of Biomedical Materials
JF - Journal of the Mechanical Behavior of Biomedical Materials
SN - 1751-6161
IS - 3
ER -