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| Naji, M. |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Azam, Siraj |
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Laurent, Christian
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Publications (9/9 displayed)
- 2018Microstructure aspects of radiation-cured networks: Cationically polymerized aromatic epoxy resinscitations
- 2017Inside a feather
- 2016Silver nanoparticles as a key feature of a plasma polymer composite layer in mitigation of charge injection into polyethylene under dc stresscitations
- 2016The significance of electroluminescence in polyolefins
- 2016Charge injection mitigation in polyethylene induced by silver nanoparticles containing organosilicon barrier layer as demonstrated by conductivity measurements
- 2016Plasma based concept for engineering of multifunctional materials with application to synthesis of large-area plasmonic substrates and to control the charge injection in dielectrics
- 2014Efficient barrier for charge injection in polyethylene by silver nanoparticles/plasma polymer stackcitations
- 2014Tuning the plasma parameters for deposition of thin nanocomposite layer containing a monolayer of silver nanoparticles on polymer film
- 2008Space charge detection in Kapton and PTFE polymer films by the Open Pulsed Electro-Acoustic Methodcitations
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article
Microstructure aspects of radiation-cured networks: Cationically polymerized aromatic epoxy resins
Abstract
The thermo-mechanical properties and nanostructural features of epoxy aromatic resins cationically cured by UV-visible or electron beam radiation have been studied by FT-NIR spectroscopy, dynamic mechanical analysis (DMA), dielectric spectroscopy (DS), and atomic force microscopy (AFM). The influence of formulation (nature and content of onium salt) and of curing parameters (doses, thermal treatment) on the thermophysical have been investigated. The presence of several relaxation domains observed by DMA and DS analysis confirms the presence of heterogeneities in the cured materials. Network formation is described by the percolation of glassy nanoclusters which are evidenced by AFM analyses. AFM probing by quantitative nanomechanical measurements confirms the gradual build-up of the local Young's modulus in good agreement with the macroscopic value.