Thermal ageing of bonded assemblies. Effect of adhesive curing degree
Article dans une revue avec comité de lecture
Date
2022-04Journal
The Journal of AdhesionRésumé
This paper reports the failure of bonded assemblies submitted to thermal ageing. Adhesives are either fully or incompletely cured. Despite comparable initial properties, depletion of mechanical properties (evaluated from single las shear tests) is faster in the case of incompletely cured polymer. A series of comprehensive experiments were conducted on thin films of adhesive itself and some model systems based on its main components. According to tensile tests and kinetic curves of stable oxidation products detected by Infrared spectroscopy, fully cured epoxy would oxidize faster (because of greater concentration in oxidizable sites). Oxygen diffusivity was observed to be comparable in both systems. It results in a lower thickness of degraded layer in the case of fully cured samples, which explain the results obtained in bonded assemblies.
Cette publication figure dans le(s) laboratoire(s) suivant(s)
Documents liés
Visualiser des documents liés par titre, auteur, créateur et sujet.
-
Article dans une revue avec comité de lectureThe thermal oxidation of DGEBA-DDS (bisphenol A diglycidyl ether + 4,4′-diaminodiphenyl sulfone) and TGMDA-DDS (4,4′-methylenebis(N,N-diglycidylaniline) + 4,4′-diaminodiphenyl sulfone) was performed at 80, 120, and 200 °C ...
-
Article dans une revue avec comité de lectureDERUE, Isabelle; GILORMINI, Pierre; VERDU, Jacques; VAULOT, Cyril; COQUILLAT, Marie; DESGARDIN, Nancy; VANDENBROUKE, Aude; RICHAUD, Emmanuel (Elsevier, 2015)The hydrolytic degradation of fully cured polyester-urethane networks polymerized in the presence of several weight ratios of triacetin was monitored by the residual concentration in elastically active chains obtained from ...
-
Article dans une revue avec comité de lectureThe thermal oxidative ageing of vinyl ester and unsaturated polyester was studied at temperatures ranging from 120 to 160°C and oxygen pressures ranging from 0.02 to 2.0 MPa. The oxidation of both materials was shown to ...
-
Article dans une revue avec comité de lectureMONTANA, Juan Sebastian; MIQUELARD-GARNIER, Guillaume; RICHAUD, Emmanuel; ROLAND, Sébastien (Elsevier, 2017)This paper reports an investigation of the thermal degradation of a poly(styrene-b-butadiene-b-methyl methacrylate) triblock terpolymer compared with those of butadiene rubbers and poly(styrene-b-methyl methacrylate). ...
-
Article dans une revue avec comité de lectureMONTANA, Juan-Sebastian; MIQUELARD-GARNIER, Guillaume; RICHAUD, Emmanuel; ROLAND, Sébastien (Elsevier, 2018)Multilayer coextrusion was used to obtain nanolayered films of self-assembled commercial triblock copolymer poly(methyl methacrylate-b-butyl acrylate-b-methyl methacrylate) (MAM) confined by poly(methyl methacrylate) (PMMA). ...