Synergistic effects in mechanical properties of PLA/PCL blends with optimized composition, processing, and morphology

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F15%3A00451541" target="_blank" >RIV/61389013:_____/15:00451541 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1039/C5RA21178F" target="_blank" >http://dx.doi.org/10.1039/C5RA21178F</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/C5RA21178F" target="_blank" >10.1039/C5RA21178F</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Synergistic effects in mechanical properties of PLA/PCL blends with optimized composition, processing, and morphology

Popis výsledku v původním jazyce

Poly(lactic acid) (PLA) is a promising material for biomedical applications due to its biodegradability and high stiffness, but suffers from low toughness. We report that blending of PLA with another biodegradable polymer, poly(?-caprolactone) (PCL), canincrease the impact strength above the values of the individual components, while the other important macro- and micromechanical properties remain at well-acceptable level (above the theoretical predictions based on equivalent box model). Although someprevious studies indicated incompatibility of PLA and PCL polymers, we demonstrate that the melt-mixing of the polymers with optimized viscosities (PLA/PCL viscosity ratio similar to 1), the optimized composition (PLA/PCL = 80/20 by weight), and the optimal processing (compression molding with fast cooling) leads to optimal morphology (similar to 0.6 ?m particles of PCL in PLA matrix) and synergistic effect in the mechanical performance of the systems. In an additional set of experiments

Název v anglickém jazyce

Synergistic effects in mechanical properties of PLA/PCL blends with optimized composition, processing, and morphology

Popis výsledku anglicky

Poly(lactic acid) (PLA) is a promising material for biomedical applications due to its biodegradability and high stiffness, but suffers from low toughness. We report that blending of PLA with another biodegradable polymer, poly(?-caprolactone) (PCL), canincrease the impact strength above the values of the individual components, while the other important macro- and micromechanical properties remain at well-acceptable level (above the theoretical predictions based on equivalent box model). Although someprevious studies indicated incompatibility of PLA and PCL polymers, we demonstrate that the melt-mixing of the polymers with optimized viscosities (PLA/PCL viscosity ratio similar to 1), the optimized composition (PLA/PCL = 80/20 by weight), and the optimal processing (compression molding with fast cooling) leads to optimal morphology (similar to 0.6 ?m particles of PCL in PLA matrix) and synergistic effect in the mechanical performance of the systems. In an additional set of experiments

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

RSC Advances

ISSN

2046-2069

e-ISSN

—

Svazek periodika

5

Číslo periodika v rámci svazku

120

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

98971-98982

Kód UT WoS článku

000365328000029

EID výsledku v databázi Scopus

2-s2.0-84948438118