Extrusion Foamed Poly(lactic) Acid/Polypropylene Blended

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F12%3A43869191" target="_blank" >RIV/70883521:28110/12:43869191 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/70883521:28610/12:43869191

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Extrusion Foamed Poly(lactic) Acid/Polypropylene Blended

Popis výsledku v původním jazyce

Poly(lactic) acid (PLA), as an alternative sustainable bio-based polymer, have been extensively introduced for polyemr foaming processes nowadays. Several modification methods are utilized for the improvement of foam morphology, expand foaming window, and as well as the prhysical properties. In this study, PLA is physically blended with polypropylene (PP) with several concentrations and subsequently foamed using supercritical carbon dioxide (SC -CO2) as a blowing agent. Different foaming temperature ofbatch control system pressure. From the experimental results, neat PLA presents the highest expansion ratio while PLA//PP blended foams show relatively low expansion ratio. SEM images indicate micro-cellular foam morphology of the blends which could be caused by high melt strength of PP. Moreover, an isotropic foam structure was described by isotropic foam index. In addition, the compatibility of prepared PLA/PP blends is revealed by thermal properties measurement.

Název v anglickém jazyce

Extrusion Foamed Poly(lactic) Acid/Polypropylene Blended

Popis výsledku anglicky

Poly(lactic) acid (PLA), as an alternative sustainable bio-based polymer, have been extensively introduced for polyemr foaming processes nowadays. Several modification methods are utilized for the improvement of foam morphology, expand foaming window, and as well as the prhysical properties. In this study, PLA is physically blended with polypropylene (PP) with several concentrations and subsequently foamed using supercritical carbon dioxide (SC -CO2) as a blowing agent. Different foaming temperature ofbatch control system pressure. From the experimental results, neat PLA presents the highest expansion ratio while PLA//PP blended foams show relatively low expansion ratio. SEM images indicate micro-cellular foam morphology of the blends which could be caused by high melt strength of PP. Moreover, an isotropic foam structure was described by isotropic foam index. In addition, the compatibility of prepared PLA/PP blends is revealed by thermal properties measurement.

Druh

O - Ostatní výsledky

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

<a href="/cs/project/ED2.1.00%2F03.0111" target="_blank" >ED2.1.00/03.0111: Centrum polymerních systémů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2012

Kód důvěrnosti údajů

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