Thermally expanded graphite (EG) polymer composite has high potential for application in the modern thermo-electronic industry due to cost-effectiveness and excellent electrical thermal properties. In this study, we report conductivity enhancement of graphite/polyetherimide (EG/PEI) fabricated by a simple solution mixing technique. Expanded enable larger properties relative graphene nanoplatele...

A coarse-grained model is developed to allow large-scale molecular dynamics (MD) simulations of a branched polyetherimide derived from two backbone monomers [4,4'-bisphenol dianhydride (BPADA) and m-phenylenediamine (MPD)], chain terminator [phthalic anhydride (PA)], branching agent [tris[4-(4-aminophenoxy)phenyl] ethane (TAPE)]. An atomistic first built for the polyetherimide. systematic proto...

The physical aging concept is generally used to explain the typical behavior of amorphous glassy materials such as amorphous polymers after different annealing or temperature quenching . In this work it is evidenced by measuring, on already aged specimens, the effect of deformation on the dynamic mechanical properties of several amorphous polymers (polycarbonate, polyetherimide and a styrene bu...

Immobilized fermentation has several advantages over traditional suspended fermentation, including simple and continuous operation, improved fermentation performance and reduced cost. Carrier is the most adjustable element among three elements of immobilized fermentation, including carrier, bacteria and environment. In this study, we characterized carrier roughness and surface properties of fou...

The moisture absorption behavior and the influence of moisture on thermal and mechanical properties of glass–fiber/polyetherimide (PEI) laminates have been investigated. The laminates were exposed to hydrothermal aging at two different temperatures and high moisture rates. The properties of as-received and hydrothermally aged samples were compared. The hydrothermally aged laminates contained a ...

Metal ions present on smectite clay (montmorillonite) platelets have preferential reactivity towards peroxy/alkoxy groups during polyamide 6 (PA6) thermal decomposition. This changes the decomposition pathway and negatively affects the ignition response of PA6. To restrict these interfacial interactions, high-temperature-resistant polymers such as polyetherimide (PEI) and polyimide (PI) were us...

Polyetherimide (PEI) blends modified by either polycarbonate (PC) or polyethylene terephthalate glycol-modified (PETG) were prepared. The latter modifier (PETG) was an industrial grade widely used for fused deposition modelling (FDM) printing. PEI blends were compared to Ultem 9085, which is the standard PEI grade for FDM printing in advanced applications. All the blends were thoroughly charact...