Postdoctoral Fellow Position (M/F) at LRP (Grenoble): Multilayer cellulosic films structured in crossed orientations by ultrafiltration coupled with shear or extensional flows (FilmCrossCell).

30 Apr 2024
Job Information

Organisation/Company

CNRS

Department

Laboratoire Rhéologie et Procédés

Research Field

Engineering
Chemistry
Physics

Researcher Profile

Recognised Researcher (R2)

Country

France

Application Deadline

20 May 2024 - 23:59 (UTC)

Type of Contract

Temporary

Job Status

Full-time

Hours Per Week

35

Offer Starting Date

1 Oct 2024

Is the job funded through the EU Research Framework Programme?

Not funded by an EU programme

Is the Job related to staff position within a Research Infrastructure?

No

Offer Description

The aim of this project is to develop multilayered cellulosic nanocomposite thin films designed from nanocelluloses with a crossed organization between each layer, by the successive application of reverse extensional flow applied simultaneously during an ultrafiltration process. Drying or UV-curing will be the two methods used to fix the structural organization achieved and develop multilayered solid films. The aqueous or polymeric suspensions used will be composed of cellulose nanocrystals or nanofibrils associated with particles of interest such as (platelets, fibers or nanotubes) clays, or carbon nanotubes or sheets of graphene oxide. The multilayered structured films obtained will be characterized by SAXS, SALS, SEM and XRD. Mechanical characterizations by uni- or bi-axial tensile tests and micro-indentation will be carried out, and oxygen and water vapor barrier properties or conductive properties will be assessed.

- Implement and participate in the development of filtration cells coupled to shear or extensional flows, based on already existing cells.
- Study different systems based on nanocelluloses and particles of interest.
- develop nanocomposites using filtration methods coupled with flows.
- Characterize nanocomposites from the point of view of their structure by SAXS, SALS, SEM, XRD.
- Characterize nanocomposites from the point of view of their mechanical properties by uni- or bi-axial tensile tests and micro-indentation tests.
- Evaluate the barrier properties to oxygen or water vapor or the conductive properties of the multi-layer films manufactured.

In the framework of the Carnot Polynar, his/her work will be carried out principally at the LRP which is part of the CNRS "institut Ingénierie" (LRP, http://www.laboratoire-rheologie-et-procedes.fr/ ) and will be under the supervision of Frédéric Pignon in collaboration with Nicolas Hengl from LRP, Bruno Jean et Jean-Luc Putaux from Cermav, Laurent Orgéas et Lucie Bailly from 3SR and Michael Holzinger from DCM. Regular exchanges will be established with these laboratories, which will provide their respective expertise and support.

Requirements

Research Field

Engineering

Education Level

PhD or equivalent

Research Field

Chemistry

Education Level

PhD or equivalent

Research Field

Physics

Education Level

PhD or equivalent

Languages

FRENCH

Level

Basic

Research Field

Engineering

Years of Research Experience

1 - 4

Research Field

Chemistry

Years of Research Experience

1 - 4

Research Field

Physics

Years of Research Experience

1 - 4

Additional Information
Eligibility criteria

--The candidate must hold a PhD with skills in fluid mechanics, soft matter and/or filtration processes. Experience in the structural/mechanical characterization of colloids and polymers would be appreciated.

Website for additional job details

https://emploi.cnrs.fr/Offres/CDD/UMR5520-FREPIG-002/Default.aspx

Work Location(s)

Number of offers available

1

Company/Institute

Laboratoire Rhéologie et Procédés

Country

France

City

GIERES

Geofield

Where to apply

Website

https://emploi.cnrs.fr/Candidat/Offre/UMR5520-FREPIG-002/Candidater.aspx

Contact

City

GIERES

Website

http://www.laboratoire-rheologie-et-procedes.fr/

STATUS: EXPIRED