Driving force for shape memory effect of polymers
Article dans une revue avec comité de lecture
In this study, we aim to evaluate the shape memory effect of a Poly (Caprolactone) (PCL) (40%) and a Styrene-Butadiene-Styrene (SBS) (60%) blend. Shape memory cycle tests are performed at different temperatures to detect the best recovery rate. Under appropriate temperature, the blend recovers substantially its original shape. To study the recovery rate evolution, multi cycle tests are realized with controlled temperature. The results indicate that the shape memory effect growths when the number of cycle increases. The stored energy acts as a driving force to bring the polymer to its permanent shape after each loading cycle. Then, an original method is proposed to measure the stress-strain evolution during the recovery. With a variable temperature, no standard test can follow the stress-strain evolution. This test is needed to validate the behavior model
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Article dans une revue avec comité de lectureKALLEL, Achraf; ABDALLAH, Abir Ben; GAMAOUN, Fehmi; FARZANEH, Sedigheh; BENDALY, Hachmi; FITOUSSI, Joseph; TCHARKHTCHI, Abbas (Springer Science and Business Media LLC, 2021)In this study, we aim to evaluate the shape memory effect of a Poly (Caprolactone) (PCL) (40%) and a Styrene-Butadiene-Styrene (SBS) (60%) blend. Shape memory cycle tests are performed at different temperatures to detect ...
Enzymatic Hydrolysis of Poly (Caprolactone) and its Blend with Styrene–Butadiene–Styrene (40% PCL/60% SBS) Article dans une revue avec comité de lectureBEN ABDALLAH, Abir; KALLEL, Achraf; GAMAOUN, Fehmi; TCHARKHTCHI, Abbas (Springer Verlag, 2019)In this study, we aim to evaluate the effect of enzymatic hydrolysis on aliphatic polyester and on its shape memory blend. Therefore, the hydrolysis of poly (ɛ-caprolactone) (PCL) and of its shape memory polymer (SMP) blend ...
Molecular weight influence on shape memory effect of shape memory polymer blend (poly(caprolactone)/ styrene‐butadiene‐styrene ) Article dans une revue avec comité de lectureBEN ABDALLAH, Abir; GAMAOUN, Fehmi; KALLEL, Achraf; TCHARKHTCHI, Abbas (Wiley, 2021)The shape memory effect (SME) does not only concern the macroscopic structure. It concerns also the polymer structure at morphological, macromolecular, and molecular scales. This effect may depend on different physicochemical ...
Article dans une revue avec comité de lectureABDALLAH-ELHIRTSI, Sofiane; FITOUSSI, Joseph; RASHMI, Baralu-Jagannatha; PRASHANTHA, Kalappa; FARZANEH, Sedigheh; LACRAMPE, Marie-France; KRAWCZAK, Patricia; TCHARKHTCHI, Abbas (Wiley, 2015)In this work, an experimental investigation on a partial shape memory polymer (PSMP) which is transformed into shape memory material is presented. Multicycle shape memory tests are performed on thermoplastic polyurethane ...
Article dans une revue avec comité de lectureTCHARKHTCHI, Abbas; ABDALLAH-ELHIRTSI, Sofiane; EBRAHIMI, Kambiz; FITOUSSI, Joseph; SHIRINBAYAN, Mohammadali; FARZANEH, Sedigheh (MDPI, 2014)In this study some new concepts regarding certain aspects related to shape memory polymers are presented. A blend of polylactic acid (PLA) (80%) and polybutylene succinate (PBS) (20%) was prepared first by extrusion, then ...