PBT plasticity loss induced by oxidative and hydrolysis ageing
Article dans une revue avec comité de lecture
Author
Date
2020Journal
Polymer Degradation and StabilityAbstract
This paper reports the study of embrittlement of PBT submitted either to thermal or hydrolytic ageing. All changes were followed up by tensile tests, rheometry in molten state and gel permeation chromatography for molar mass changes, SAXS and DSC experiments for crystallinity changes. Both kind of ageing were shown to induce predominant chain scissions with moderate crystallinity increase, in great part due to annealing. The combination of all results were used to establish a Mw - χc embrittlement window helping for a determination of an end of life criterion.
Files in this item
- Name:
- PIMM_PDS_2020_ LOYER.pdf
- Size:
- 2.075Mb
- Format:
- Description:
- Article
- Embargoed until:
- 2021-05-01
Related items
Showing items related by title, author, creator and subject.
-
Article dans une revue avec comité de lectureLOYER, Camille; FERREIRA, Paulo; MARIJON, Jean-Baptiste; MICHEL, Vincent; REGNIER, Gilles; VERA, Julie; DUVAL, Vincent; RICHAUD, Emmanuel (Elsevier BV, 2022-01-31)Embrittlement caused by injection molding was investigated on a commercial grade of Polybutylene terephthalate (PBT). The effect of temperature and residence time in the barrel on mechanical properties was studied. Results ...
-
Article dans une revue avec comité de lectureLOYER, C.; REGNIER, Gilles; DUVAL, V.; RICHAUD, Emmanuel (Elsevier BV, 2021)This paper reports the hydrolysis of several PBT materials (pigmented or not). Degradation was monitored by gel permeation chromatography (chain scission), DSC (crystalline morphology), tensile test (residual mechanical ...
-
Article dans une revue avec comité de lectureDEFAUCHY, Virginie; LE GAC, Pierre Yves; GUINAULT, Alain; VERDU, Jacques; RECHER, Gilles; DROZDZAK, Renata; RICHAUD, Emmanuel (Elsevier, 2017)The in situ thermal oxidation of thin unstabilized polydicyclopentadiene was studied by TGA to monitor mass gain, and DSC to characterize hydroperoxides concentration. Results were discussed using kinetic analysis, which ...
-
Article dans une revue avec comité de lectureNICOLAS, Clémence; HUANG, Jing; RICHAUD, Emmanuel; DAVID, Adelina; GAC, Pierre-Yves Le; MINNE, Wendy; DROZDZAK, Renata; RECHER, Gilles; FONTAINE, Laurent; MONTEMBAULT, Véronique (Elsevier BV, 2022-01)The antioxidant 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) group was covalently introduced into polydicyclopentadiene (PDCPD) through ring-opening metathesis polymerization (ROMP) copolymerization of dicyclopentadiene ...
-
Article dans une revue avec comité de lectureNICOLAS, Clémence; HUANG, Jing; RICHAUD, Emmanuel; MINNE, Wendy; DROZDZAK, Renata; RECHER, Gilles; FONTAINE, Laurent; MONTEMBAULT, Véronique (Elsevier, 2021)A series of new norbornene monomers containing sterically hindered phenol groups have been synthesized and polymerized via ring-opening metathesis polymerization (ROMP) using the Grubbs 3rd generation catalyst (G3’). ROMPs ...