A5086134535- biodegradable polymer synthesis and properties
- Rheology and Fluid Dynamics Studies
- Polymer crystallization and properties
- Polymer Foaming and Composites
- Polymer Nanocomposites and Properties
- Additive Manufacturing and 3D Printing Technologies
- Carbon dioxide utilization in catalysis
- Advanced Sensor and Energy Harvesting Materials
- Dielectric materials and actuators
- Injection Molding Process and Properties
- Block Copolymer Self-Assembly
- Fluid Dynamics and Thin Films
- Epoxy Resin Curing Processes
- Silicone and Siloxane Chemistry
- Material Properties and Processing
- Bone Tissue Engineering Materials
- Microplastics and Plastic Pollution
- Polymer Science and PVC
- Natural Fiber Reinforced Composites
- Fiber-reinforced polymer composites
- Synthesis and properties of polymers
- Mechanical Behavior of Composites
- Engineering Technology and Methodologies
- Electrospun Nanofibers in Biomedical Applications
- Tribology and Wear Analysis
Centre National de la Recherche Scientifique
2016-2025
Université Claude Bernard Lyon 1
2016-2025
Université Jean Monnet
2022-2025
Institut National des Sciences Appliquées de Lyon
2015-2024
Ingenierie des Materiaux polymeres
2019-2024
Euro-Mediterranean University of Fes
2024
Fujian Normal University
2021
Albert Einstein College of Medicine
2021
Hassan II Academy of Science and Technology
2017-2021
Laboratoire de Mécanique des Contacts et des Structures
2006-2016
The blown extrusion of poly(lactic acid) (PLA) presents several challenges mainly due to the poor shear and elongation properties this biopolymer. This article highlights some promising routes enhance processability PLA for extrusion. To achieve objective, various formulations with multifunctionalized epoxy, nucleating agents, plasticizer were elaborated studied on basis their linear viscoelasticity elongational properties. We further characterized both structure thermomechanical films...
The objective of this study was to gain a deep understanding composition and compatibilization effects on the properties entirely sustainably sourced polymer blends based polylactide (PLA) polyamide 11 (PA11). Generally, PLA cannot challenge regular commodity polymers due its weak thermo-mechanical poor elongation properties. With work, however, we present promising route overcome these drawbacks in order enhance processability PLA: blending with various compositions other ductile...
Interfacial rheology is crucial in dictating morphology and ultimate properties of particle-stabilized polymer blends, but challenging to be determined. In this study, a fully polymeric dumbbell-shaped Janus nanoparticle (JNP) polymethyl methacrylate (PMMA) polystyrene (PS) spheres with equal sizes (∼80 nm) was prepared used as an efficient compatibilizer for PMMA/PS blends. The JNPs were preferentially localized at the interface, thereby reducing interfacial tension refining both...
This study was dedicated to the blown film extrusion of poly(lactic acid), which mainly presents poor shear and elongation viscosities, its blends. In order enhance melt strength, two main routes were selected (i) a structural modification through chain extension branching mechanisms by adding reactive multifunctional epoxide (named Joncryl) (ii) blending with poly(butylene adipate-co-terephtalate), named PBAT in presence (or not) Joncryl. The effects agent on rheology, morphological,...
The mutual diffusion process and interphase development taking place at an asymmetrical polymer–polymer interface between two compatible model polymers, poly(methyl methacrylate) (PMMA) with varying molecular weights poly(vinylidene fluoride) (PVDF) in the molten state, were investigated by small-amplitude oscillatory shear measurements. rheology method, Lodge–McLeish model, test of time–temperature superpositon (tTS) principle employed to probe thermorheological complexity this polymer...
An effort was made to demonstrate the dynamic heterogeneity of poly(methyl methacrylate) (PMMA)/poly(vinylidene fluoride) (PVDF) blends, where its composition dependence and role interphase were probed. Firstly, thermorheological complexity PMMA/PVDF blends in melt revealed. The molecular entanglement state involving intra- interchain entanglements found govern scenario complexity. Intriguingly, local further demonstrated exist melt-state with intermediate compositions, origin depicted be...
It is known that the macroscopic properties of multilayer polymer films are largely dominated by diffuse interphase formed via interfacial diffusion between neighboring layers. However, not much about origin this effect. In work, we reveal role and development in films, based on a compatible poly(vinylidene fluoride)/poly(methyl methacrylate) system fabricated forced-assembly micro-/nanolayer coextrusion. Interestingly, layer morphology found to prevail all investigated even for nanolayered...
To better understand the processing and final properties of multilayer films obtained by layer forced assembly in coextrusion as well their structure morphology, present study focuses on model with LDPE base polymer. More specifically, confinement a glassy amorphous polymer (here, PC or PS) was investigated. First, viscosity elasticity ratios different neat polymers were measured rheological tests to simulate conditions feedblock multipliers during coextrusion. These results together...
Carbon fiber reinforced polycarbonate (CF/PC) composites have attracted attention for their excellent performances. However, performances are greatly affected by environmental factors. In this work, the were exposed to hydrothermal aging investigate effects of a hot and humid environment. The mechanical properties CF/PC with different times (0, 7, 14, 21, 28, 35, 42 days) analyzed. It was demonstrated that storage modulus water aged seven days has highest value in sampling period frequency....
To increase the lifetime of metallic molds and protect their surface from wear, a fluorinated ethylene propylene (FEP) polymer was coated onto stainless-steel (SS304) substrate, using an air spray process followed by heat treatment. The microstructural properties coating were studied scanning electron microscopy (SEM) energy-dispersive X-ray spectroscopy (EDS) as well diffraction. mechanical adhesion behavior analyzed via nanoindentation test progressive scratching. According to results, FEP...
The purpose of the present work was to gain a fundamental understanding how composition and physico-chemical properties affect rheology, morphology, miscibility, thermal stability poly(lactic acid) (PLA)—poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) biopolymer blends obtained by melt mixing. First, restricted processing conditions were chosen, due inherent degradation PHBV, as proven rheological dynamic time sweep (DTS) measurements size-exclusion chromatography (SEC). Based on this,...
The aim of the present work has been to gain a fundamental understanding mechanisms governing encapsulation in multiphase systems as blend or multilayer structures. model chosen for this study are based on (i) Newtonian poly(dimethylsiloxane) polymers varying molar masses and (ii) high molecular weight, viscoelastic, compatible pair PVDF PMMA. same approach was applied functionalized investigate effect physicochemical affinity two pairs asymmetrical reactive PE-GMA (glycidyl...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Huagui Zhang, Khalid Lamnawar, Abderrahim Maazouz, João M. Maia; A nonlinear shear elongation rheological study of interfacial failure in compatible bilayer systems. J. Rheol. 1 January 2016; 60 (1): 1–23. https://doi.org/10.1122/1.4926492 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends...