Material extrusion additive manufacturing (ME-AM) techniques have been recently introduced for core–shell polymer manufacturing. Using ME-AM offers improved mechanical properties and dimensional accuracy over conventional 3D-printed polymer. Operating parameters play an important role in forming the overall quality of manufactured products. Here we use numerical simulations within framework com...

A series of nanocomposites containing gold nanoparticles (AuNPs) are prepared by stereolithography (SL) simply adding a precursor (KAuCl4) to photoresist. thermal treatment is performed after manufacturing the nanocomposites, triggering reduction KAuCl4 into AuNPs in solid state. In this approach, photopolymerization resin and formation occur independently, allowing optimization these two proce...

Over the last few decades, polymers and their composites have shown a lot of promises in providing more viable alternatives to surgical procedures that require scaffolds implants. With advancement biomaterial technologies, it is possible overcome limitations current methods, including auto-transplantation, xeno-transplantation, implantation artificial mechanical organs used treat musculoskeleta...

We have prepared and characterized a series of nonfluoro polymer composites with functional carbon additives such as graphite, candle soot and camphor soot which when mixed with EPF (Expanded Polystyrene Foam) matrices increase surface hydrophobicity. Water contact angles of >150° was observed on spin-cast composite film surfaces containing 3% camphor soot particles, compared to 89° in the abse...

The principle of a computing program describing precisely the migration of additives from a polymer into a food simulant is presented. As six parameters are used to fit the simulnnt sorption and additive extraction kinetics, the parameters have been determined by independent experiments. Owing to the complicated coupling between the liquid and additive diffusion processes, migration kinetics ca...

Modified cellulose acetate (CA) membranes were prepared by dissolving the polymers in a mixture of acetone (AC) and N, N dimethylacetamide (DMAc) (70:30) solvent and deionized (DI) water was used in the coagulation bath. The introduction of polyethylene glycol (PEG) additive and TiO2 nanoparticles (NPs) into the casting solution has changed the structures of the resulting membranes during the p...