Detail publikace

Influence of FFF Process Conditions on the Thermal, Mechanical, and Rheological Properties of Poly(hydroxybutyrate-co-hydroxy Hexanoate)

CAPUTO, M. FERNÁNDEZ, M. AGUIRRESAROBE, R. KOVALČÍK, A. SARDON, H. CANDAL, M. MÜLLER, A.

Originální název

Influence of FFF Process Conditions on the Thermal, Mechanical, and Rheological Properties of Poly(hydroxybutyrate-co-hydroxy Hexanoate)

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Polyhydroxyalkanoates are natural polyesters synthesized by microorganisms and bacteria. Due to their properties, they have been proposed as substitutes for petroleum derivatives. This work studies how the printing conditions employed in fuse filament fabrication (FFF) affect the properties of poly(hydroxybutyrate-co-hydroxy hexanoate) or PHBH. Firstly, rheological results predicted the printability of PHBH, which was successfully realized. Unlike what usually happens in FFF manufacturing or several semi-crystalline polymers, it was observed that the crystallization of PHBH occurs isothermally after deposition on the bed and not during the non-isothermal cooling stage, according to calorimetric measurements. A computational simulation of the temperature profile during the printing process was conducted to confirm this behavior, and the results support this hypothesis. Through the analysis of mechanical properties, it was shown that the nozzle and bed temperature increase improved the mechanical properties, reducing the void formation and improving interlayer adhesion, as shown by SEM. Intermediate printing velocities produced the best mechanical properties.

Klíčová slova

additive manufacturing; poly(hydroxybutyrate-co-hydoxyhexanoate); biodegradable; mechanical properties; crystallinity

Autoři

CAPUTO, M.; FERNÁNDEZ, M.; AGUIRRESAROBE, R.; KOVALČÍK, A.; SARDON, H.; CANDAL, M.; MÜLLER, A.

Vydáno

7. 4. 2023

Nakladatel

MDPI

Místo

BASEL

ISSN

2073-4360

Periodikum

Polymers

Ročník

15

Číslo

8

Stát

Švýcarská konfederace

Strany od

1

Strany do

25

Strany počet

25

URL

https://www.mdpi.com/2073-4360/15/8/1817

Plný text v Digitální knihovně

http://hdl.handle.net/11012/244324

BibTex

@article{BUT183686,
  author="Maria Rosaria {Caputo} and Mercedes {Fernández} and Robert {Aguirresarobe} and Adriána {Kovalčík} and Haritz {Sardon} and María Virginia {Candal} and Alejandro J. {Müller}",
  title="Influence of FFF Process Conditions on the Thermal, Mechanical, and Rheological Properties of Poly(hydroxybutyrate-co-hydroxy Hexanoate)",
  journal="Polymers",
  year="2023",
  volume="15",
  number="8",
  pages="1--25",
  doi="10.3390/polym15081817",
  issn="2073-4360",
  url="https://www.mdpi.com/2073-4360/15/8/1817"
}