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Communication Dans Un Congrès Année : 2022

Material modelling of the photopolymers for additive manufacturing processes

Résumé

Ultraviolet (UV) curing of polymers is a key phenomenon for several additive manufacturing technologies. This contribution presents a model relating the process parameters of UV light intensity and temperature to the thermal and mechanical properties of the polymer and the experimental results used to calibrate the model. Moreover, photo-differential scanning calorimetry (photo-DSC) measurements are performed to investigate the crosslinking reaction and to model the degree of cure as a function of the light intensity and temperature. The viscoelastic properties are measured by UV rheometry and it is shown that the classical time-cure superposition principle can equally be applied to the experimental results. Complete curing and mechanical model equations are provided to describe the material behavior as a result of our experimental findings.
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Dates et versions

hal-03854523 , version 1 (20-03-2024)

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  • HAL Id : hal-03854523 , version 1

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Kubra Sekmen, Thomas Rehbein, Michael Johlitz, Alexander Lion, Andrei Constantinescu. Material modelling of the photopolymers for additive manufacturing processes. The 33rd Annual International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference, Jul 2022, Austin, Texas, United States. pp.94-106. ⟨hal-03854523⟩
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