Skip to Main content Skip to Navigation
New interface
Theses

Etude de la durabilité de matériaux respectueux de l'environnement / biocomposites

Abstract : This thesis is part of the subject photodegradation and biodegradation of polymer that can be or not from renewable resources. Its main objective is to study the photochemical durability of various polymers or polymer blends used particularly in agriculture and therefore subject to weathering. The chemical structure of polymers is one of the main parameters that could influence the photodegradation. A set of (co)polyesters containing units aliphatic, cyclic and / or aromatic have been selected in order to express the relationships structure / photodurability. The photoageing of materials was carried out under natural and accelerated conditions. Photo-oxidation mechanisms have been suggested for each material based on the evolution of the viscoelastic properties reflecting the macromolecular structure. In this context, the study of the durability of these ecofriendly materials should address in highly complex systems in which each component is subject to change. This feature requires the development of a methodology to determine the composition of a biocomposite and monitor the changes during ageing at the same time as changing the structure of these materials.
Document type :
Theses
Complete list of metadata

https://theses.hal.science/tel-00661106
Contributor : ABES STAR :  Contact
Submitted on : Wednesday, January 18, 2012 - 3:19:42 PM
Last modification on : Thursday, December 16, 2021 - 3:56:20 AM
Long-term archiving on: : Thursday, April 19, 2012 - 2:26:40 AM

File

2011CLF22115_-_H_-_ASKANIAN.pd...
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-00661106, version 1

Citation

Haroutioun Askanian. Etude de la durabilité de matériaux respectueux de l'environnement / biocomposites. Autre. Université Blaise Pascal - Clermont-Ferrand II, 2011. Français. ⟨NNT : 2011CLF22115⟩. ⟨tel-00661106⟩

Share

Metrics

Record views

862

Files downloads

1374