Anti-hydrolysis effect of aromatic carbodiimide in poly(lactic acid)/wood flour composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F17%3A63517143" target="_blank" >RIV/70883521:28610/17:63517143 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26310/17:PU125146

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.compositesa.2017.10.003" target="_blank" >http://dx.doi.org/10.1016/j.compositesa.2017.10.003</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.compositesa.2017.10.003" target="_blank" >10.1016/j.compositesa.2017.10.003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Anti-hydrolysis effect of aromatic carbodiimide in poly(lactic acid)/wood flour composites

Popis výsledku v původním jazyce

Poly(lactic acid) (PLA) filled with wood flour (WF) is more susceptible to hydrolysis compared to pure PLA. This work shows that the hydrolysis reactions leading to chain scission can be hindered by using 2 wt% of bis(2,6-diisopropylphenyl)carbodiimide (ZIKA). It was found that the addition of ZIKA supports the crosslinking of PLA/WF composite. The crosslinking slightly hindered the annealing efficiency of wood flour and increased the stiffness of biocomposites. The thermal stability of biocomposites containing ZIKA was slightly improved. The relevance of the antihydrolysis effect of ZIKA during melt processing of biocomposites was correlated with the rheological and molar mass properties. The hydrolytic stability of biocomposites was determined under buffer solution conditions at accelerated temperature 80 °C and pH of 7. The determined lower depolymerisation and hydrolysis rates of PLA/WF-ZIKA composites indicate that the service lifespan of biocomposites can be prolonged by the addition of ZIKA additive.

Název v anglickém jazyce

Anti-hydrolysis effect of aromatic carbodiimide in poly(lactic acid)/wood flour composites

Popis výsledku anglicky

Poly(lactic acid) (PLA) filled with wood flour (WF) is more susceptible to hydrolysis compared to pure PLA. This work shows that the hydrolysis reactions leading to chain scission can be hindered by using 2 wt% of bis(2,6-diisopropylphenyl)carbodiimide (ZIKA). It was found that the addition of ZIKA supports the crosslinking of PLA/WF composite. The crosslinking slightly hindered the annealing efficiency of wood flour and increased the stiffness of biocomposites. The thermal stability of biocomposites containing ZIKA was slightly improved. The relevance of the antihydrolysis effect of ZIKA during melt processing of biocomposites was correlated with the rheological and molar mass properties. The hydrolytic stability of biocomposites was determined under buffer solution conditions at accelerated temperature 80 °C and pH of 7. The determined lower depolymerisation and hydrolysis rates of PLA/WF-ZIKA composites indicate that the service lifespan of biocomposites can be prolonged by the addition of ZIKA additive.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

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

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Composites Part A: Applied Science and Manufacturing

ISSN

1359-835X

e-ISSN

—

Svazek periodika

103

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

283-291

Kód UT WoS článku

000416497100029

EID výsledku v databázi Scopus

2-s2.0-85032856776