• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM)
  • View Item
  • Home
  • Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Thermal and Crystallization Properties of the Alternated Tere/Iso PEKK Copolymer: Importance in High-Temperature Laser Sintering

Article dans une revue avec comité de lecture
Author
CHERRI, Alexis
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
ILIOPOULOS, Ilias
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
RÉGNIER, Gilles
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
BRULÉ, Benoit
198035 Centre de recherche, développement, applications et technique de l'ouest [CERDATO]
LÉ, Guillaume
198035 Centre de recherche, développement, applications et technique de l'ouest [CERDATO]
TENCÉ-GIRAULT, Sylvie
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]

URI
http://hdl.handle.net/10985/22206
DOI
10.1021/acsapm.2c00096
Date
2022-03-08
Journal
ACS Applied Polymer Materials

Abstract

High-temperature laser sintering (HT-LS) is a very promising additive manufacturing process for the production of parts of complex geometry for highly demanding applications. Poly(aryl ether ketone) polymers such as poly(ether ketone), poly(ether ether ketone), and poly(ether ketone ketone) (PEKK) have attracted increasing interest during the last decade for use in HT-LS. Among them, PEKK offers the advantage of exhibiting tunable melting temperature and crystallization rate due to its copolymer structure. Indeed, PEKK is synthesized by Friedel-Crafts polyacylation condensation of diphenyl ether with terephthaloyl chloride (T units) and isophthaloyl chloride (I units). In this work, we focus on a specific member of the PEKK family having a regular alternated T/I structure, PEKK 50/50, and study its isothermal crystallization from the melt at various crystallization temperatures (TC), from 200 °C to 290 °C. A quantitative analysis based on X-ray scattering and differential scanning calorimetry experiments is performed. Primary crystallization dominates the process with a half-time of crystallization higher than 6 min and an Avrami exponent between 2.2 and 3. Stacks of periodic crystalline lamellae are first created, followed by lateral growth of these crystalline lamellae, leading to a gradual increase of the weight crystallinity. Crystalline form I, with traces of form III, is mostly observed regardless of TC. The amount and perfection of the crystalline phase increase with TC. The crystalline state achieved, as well as the thermal and rheological behavior of PEKK 50/50 during crystallization at high TC(∼280-290 °C), are promising for use in HT-LS manufacturing.

Files in this item

Name:
PIMM_ACSAPM_2022_CHERRI.pdf
Size:
3.289Mb
Format:
PDF
Embargoed until:
2022-09-15
View/Open

Collections

  • Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM)

Related items

Showing items related by title, author, creator and subject.

  • Quantitative Structural Study of Cold-Crystallized PEKK 
    Article dans une revue avec comité de lecture
    TENCE-GIRAULT, Sylvie; QUIBEL, Jonathan; CHERRI, Alexis; ROLAND, Sébastien; FAYOLLE, Bruno; BIZET, Stéphane; ILIOPOULOS, Ilias (American Chemical Society (ACS), 2021)
    Poly(ether ketone ketone) (PEKK) is a semicrystalline polymer investigated for highly demanding applications in aerospace, transportation, electronics, and oil & gas industries. The properties required for these applications, ...
  • High and Temperature-Independent Dielectric Constant Dielectrics from PVDF-Based Terpolymer and Copolymer Blends 
    Article dans une revue avec comité de lecture
    THUAU, Damien; KALLITSIS, Konstantinos; HA, Sara; BARGAIN, François; SOULESTIN, Thibaut; PÉCASTAINGS, Gilles; TENCÉ-GIRAULT, Sylvie; DOMINGUES-DOS SANTOS, Fabrice; HADZIIOANNOU, Georges (Wiley, 2020)
    Relaxor ferroelectric polymers exhibit high k at their structural phase transition around room temperature. They are particularly attractive as gate dielectric in organic field effect transistor (OFET). Nevertheless, their ...
  • Enhanced Electrocaloric Response of Vinylidene Fluoride–Based Polymers via One‐Step Molecular Engineering 
    Article dans une revue avec comité de lecture
    LE GOUPIL, Florian; KALLITSIS, Konstantinos; TENCÉ‐GIRAULT, Sylvie; POURIAMANESH, Naser; BROCHON, Cyril; CLOUTET, Eric; SOULESTIN, Thibaut; DOMINGUE DOS SANTOS, Fabrice; STINGELIN, Natalie; HADZIIOANNOU, Georges (Wiley, 2020)
    Electrocaloric refrigeration is one of the most promising environmentally-friendly technologies to replace current cooling platforms—if a notable electrocaloric effect (ECE) is realized around room temperature where the ...
  • Structural and Barrier Properties of Compatibilized PE/PA6 Multinanolayer Films 
    Article dans une revue avec comité de lecture
    LOZAY, Quentin; BEUGUEL, Quentin; FOLLAIN, Nadège; LEBRUN, Laurent; GUINAULT, Alain; MIQUELARD-GARNIER, Guillaume; TENCÉ-GIRAULT, Sylvie; SOLLOGOUB, Cyrille; DARGENT, Eric; MARAIS, Stéphane (MDPI, 2021)
    The barrier performance and structural lightening of organic materials are increasingly desired and constitute a major challenge for manufacturers, particularly for transport and packaging. A promising technique which tends ...
  • Microstructure-mechanical properties relationships in vibration welded glass-fiber-reinforced polyamide 66: A high-resolution X-ray microtomography study 
    Article dans une revue avec comité de lecture
    MOFAKHAMI, Eeva; TENCÉ-GIRAULT, Sylvie; PERRIN, Jonathan; SCHEEL, Mario; GERVAT, Laurent; OVALLE RODAS, Cristian; LAIARINANDRASANA, Lucien; FAYOLLE, Bruno; MIQUELARD-GARNIER, Guillaume (Elsevier, 2020)
    The effect of initial fiber orientation and welding conditions on the mechanical properties and microstructure of 30 wt% glass-fiber-reinforced polyamide 66 was systematically evaluated. For all conditions studied no ...

Browse

All SAMCommunities & CollectionsAuthorsIssue DateCenter / InstitutionThis CollectionAuthorsIssue DateCenter / Institution

Newsletter

Latest newsletterPrevious newsletters

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales