scholarly journals Fracture behavior of quenched poly(lactic acid)

2011 ◽  
Vol 5 (1) ◽  
pp. 82-91 ◽  
Author(s):  
J. Gamez-Perez ◽  
J. C. Velazquez-Infante ◽  
E. Franco-Urquiza ◽  
P. Pages ◽  
F. Carrasco ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Fracture Behavior ◽  
Poly Lactic Acid

scholarly journals Tensile fracture behavior of a biodegradable polymer, poly(lactic acid)

2006 ◽  
Vol 25 (5) ◽  
pp. 628-634 ◽  
Author(s):  
Kazuo Arakawa ◽  
Toshio Mada ◽  
Sang-Dae Park ◽  
Mitsugu Todo
Keyword(s):  
Lactic Acid ◽  
Biodegradable Polymer ◽  
Fracture Behavior ◽  
Poly Lactic Acid ◽  
Tensile Fracture

Sheets of branched poly(lactic acid) obtained by one-step reactive extrusion–calendering process: physical aging and fracture behavior

2014 ◽  
Vol 49 (11) ◽  
pp. 4093-4107 ◽  
Author(s):  
J. Cailloux ◽  
O. O. Santana ◽  
E. Franco-Urquiza ◽  
J. J. Bou ◽  
F. Carrasco ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Fracture Behavior ◽  
Physical Aging ◽  
Reactive Extrusion ◽  
Poly Lactic Acid ◽  
One Step

Surface Modified CaCO3 Nanoparticles with Silica via Sol-Gel Process Using in Poly(lactic acid) Nanocomposite

2012 ◽  
Vol 488-489 ◽  
pp. 520-524 ◽  
Author(s):  
Bawornkit Nekhamanurak ◽  
Pajaera Patanathabutr ◽  
Nattakarn Hongsriphan
Keyword(s):  
Lactic Acid ◽  
Fracture Behavior ◽  
Sol Gel ◽  
Sio2 Nanoparticles ◽  
Nano Particles ◽  
Poly Lactic Acid ◽  
Elongation At Break ◽  
Sol Gel Process ◽  
Modify Surface ◽  
Surface Modified

The goal of this work is to modify surface of calcium carbonate nanoparticles with silica (CaCO3@SiO2) via sol-gel process, and to investigate the influence of CaCO3@SiO2 on mechanical properties and fracture behavior of poly(lactic acid) nanocomposite. Modified CaCO3@SiO2 nanoparticles were prepared with different Si/Ca ratios. It is found that the Si:Ca wt% ratio was increased with respect to the Si:Ca mole ratio used in the reaction. Incorporating CaCO3@SiO2 of 5 wt% increased elastic modulus, %elongation at break and notched impact strength of PLA nanocomposites, which these properties of CaCO3@SiO2-PLA nanocomposite was increased with respect to increasing of SiO2 content on the surface of CaCO3 nano-particles. This implies that better compatibility between polymer matrix and filler was achieved after modification surface of CaCO3 with SiO2 layers.

Preparation of Vaterite/Poly(lactic acid) Composites with Excellent Apatite-Forming Ability

2005 ◽  
Vol 284-286 ◽  
pp. 449-452 ◽  
Author(s):  
Toshihiro Kasuga ◽  
Hirotaka Maeda ◽  
G. Jell ◽  
Ioan Notingher ◽  
Larry L. Hench
Keyword(s):  
Lactic Acid ◽  
Calcium Carbonate ◽  
Body Fluid ◽  
Fracture Behavior ◽  
Bending Strength ◽  
Poly Lactic Acid ◽  
Nodule Formation ◽  
Human Osteoblasts ◽  
New Type ◽  
Bone Nodule Formation

A new type of ceramic-polymer biomaterial having excellent apatite-forming ability in simulated body fluid (SBF) was prepared by hot-pressing a mixture consisting of poly(-L-lactic acid)(PLA) and calcium carbonate (vaterite). The composite containing 30% vaterite showed no brittle fracture behavior and comparably high bending strength of ~50 MPa. Apatite layer of several micrometers in thickness formed on its surface after soaking in SBF at 37°C only for 1 day. Osteoclast culture tests showed that the composite coated with apatite has excellent bioresorbability. After incubation of human osteoblasts, mineralized bone nodule formation was seen on the surface.

Effect of crystallinity and loading-rate on mode I fracture behavior of poly(lactic acid)

Polymer ◽  
2006 ◽  
Vol 47 (4) ◽  
pp. 1357-1363 ◽  
Author(s):  
Sang Dae Park ◽  
Mitsugu Todo ◽  
Kazuo Arakawa ◽  
Masaaki Koganemaru
Keyword(s):  
Lactic Acid ◽  
Fracture Behavior ◽  
Loading Rate ◽  
Poly Lactic Acid ◽  
Mode I ◽  
Mode I Fracture

Electrical Properties of Heat-Treated Poly-Lactic Acid

2011 ◽  
Vol 131 (5) ◽  
pp. 395-400 ◽  
Author(s):  
Toru Oi ◽  
Katsuyoshi Shinyama ◽  
Shigetaka Fujita
Keyword(s):  
Lactic Acid ◽  
Electrical Properties ◽  
Poly Lactic Acid ◽  
Heat Treated

Dielectric Breakdown Properties of Poly-Lactic Acid with Spherulites Growth

2014 ◽  
Vol 134 (4) ◽  
pp. 237-242
Author(s):  
Naru Matsugasaki ◽  
Katsuyoshi Shinyama ◽  
Shigetaka Fujita
Keyword(s):  
Lactic Acid ◽  
Dielectric Breakdown ◽  
Poly Lactic Acid
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