Publication detail

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

Pavlina Holcapkova, Petr Stloukal, Pavel Kucharczyk, Maria Omastova, Adriana Kovalcik

Original Title

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

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

Biocomposite, Environmental degradation, Rheological properties, Thermal analysis

Authors

Pavlina Holcapkova, Petr Stloukal, Pavel Kucharczyk, Maria Omastova, Adriana Kovalcik

Released

5. 10. 2017

Publisher

Elsevier

Location

Amsterdam

ISBN

1359-835X

Periodical

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING

Year of study

103

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

283

Pages to

291

Pages count

8

URL

https://www.sciencedirect.com/science/article/pii/S1359835X17303615

BibTex

@article{BUT140742,
  author="Adriána {Kovalčík}",
  title="Anti-hydrolysis effect of aromatic carbodiimide in poly(lactic acid)/wood flour composites",
  journal="COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING",
  year="2017",
  volume="103",
  number="1",
  pages="283--291",
  doi="10.1016/j.compositesa.2017.10.003",
  issn="1359-835X",
  url="https://www.sciencedirect.com/science/article/pii/S1359835X17303615"
}