Effect of processing conditions on the cell morphology distribution in foamed injection molded PLA samples

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F17%3A63518007" target="_blank" >RIV/70883521:28610/17:63518007 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1063/1.5016727" target="_blank" >http://dx.doi.org/10.1063/1.5016727</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.5016727" target="_blank" >10.1063/1.5016727</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of processing conditions on the cell morphology distribution in foamed injection molded PLA samples

Popis výsledku v původním jazyce

Foam injection molding uses physical blowing agents under high pressure and temperature to produce structural foams having a cellular core and a compact solid skin. This technology is particularly interesting for biodegradable polymers, which often present a very narrow processing window, with the suitable processing temperatures close to the degradation conditions. The addition of a supercritical gas can lead to the reduction of both the viscosity and the glass transition temperature of the polymer melt, which therefore can be injection molded adopting lower temperatures and pressures. In this work, the effect of different processing parameters on foam morphology of Poly(lactic) Acid, PLA, was studied. In particular, two commercial grades of PLA having different rheological properties were adopted to obtain foamed parts by injection molding process with nitrogen as a physical blowing agent. For both PLA grades, the effect of mold temperature on the crystallinity and the resulting cell morphology was assessed.

Název v anglickém jazyce

Effect of processing conditions on the cell morphology distribution in foamed injection molded PLA samples

Popis výsledku anglicky

Foam injection molding uses physical blowing agents under high pressure and temperature to produce structural foams having a cellular core and a compact solid skin. This technology is particularly interesting for biodegradable polymers, which often present a very narrow processing window, with the suitable processing temperatures close to the degradation conditions. The addition of a supercritical gas can lead to the reduction of both the viscosity and the glass transition temperature of the polymer melt, which therefore can be injection molded adopting lower temperatures and pressures. In this work, the effect of different processing parameters on foam morphology of Poly(lactic) Acid, PLA, was studied. In particular, two commercial grades of PLA having different rheological properties were adopted to obtain foamed parts by injection molding process with nitrogen as a physical blowing agent. For both PLA grades, the effect of mold temperature on the crystallinity and the resulting cell morphology was assessed.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

AIP Conference Proceedings

ISBN

—

ISSN

0094-243X

e-ISSN

neuvedeno

Počet stran výsledku

5

Strana od-do

1-5

Název nakladatele

American Institute of Physics Publising Inc.

Místo vydání

Melville

Místo konání akce

Lyon

Datum konání akce

25. 7. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000426217800041