Scanningelectron microscopy (SEM) has been utilized  to examine  the morphology and topography alterations  in the surface of Poly(Lactic Acid)(PLA) fabrics due to UV/Ozoneirradiation. In the past decade, a growing attention in the usage of “Green Techniques” in industrial applications has been observed owing to many benefits such as low impurities and their relatively low cost to substitute th...

In this study, antibacterial characteristic of silver/poly (lactic acid) nanocomposite (Ag/PLA-NC) films was investigated, while silver nanoparticles (Ag-NPs) were synthesized into biodegradable PLA via chemical reduction method in diphase solvent. Silver nitrate and sodium borohydride were respectively used as a silver precursor and reducing agent in the PLA, which acted as a polymeric matrix ...

Aiming to overcome poly(lactic acid) (PLA) limitations regarding flammability and high costs, a highly refractory clay (RC) was employed produce PLA/RC composites. The composites with contents of 0, 2.5, 10 15 wt% were produced by extrusion, conformed injection molding, characterized thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), mechanical analysis, electron microsc...

Poly(lactic acid) (PLA) is a biodegradable polymer used for food packaging. The effects of electron beam radiation on the chemical and physical properties amorphous PLA were studied. In this study, amorphous, racemic was irradiated at doses 5, 10, 15, 20 kGy in absence oxygen. Utilizing paramagnetic resonance spectrometry, it found that alkoxyl radicals are initially formed as result C-O-C bond...

Biopolymers, such as poly(lactic) acid (PLA), which is obtained through green synthesis pathways from renewable resources, has attracted considerable interest in recent years because of the increasing need to reduce petroleum-based plastic pollution and bringing their prices comparable with conventional thermoplastic commodities’ price (e.g., polyethylene, polypropylene, polystyrene). The prese...

In this work, various microcrystalline celluloses were extracted from apricots shells (AC) and walnut (WC) by alkaline treatments combined with hydrogen peroxide blanching. Different composites-based poly (lactic acid) (PLA) cellulose PLA/AC PLA/WC successfully prepared the cast-solution method ratios. PLA composites characterized tensile test, Fourier transform infrared spectroscopy (FTIR), me...

Composite electrodes are an effective and cheap way to utilize a wide range of carbon materials make electrodes. More recently, thermoplastics have been widely used as the binder composite electrodes, varying fabrication approaches, such three-dimensional (3D) printing, can highly reproducible However, there is clear need understand how electrochemical performance different allotrope varies whe...

lactide was synthesized by reverse polymerization of low molecular weight poly(lactic acid) with two different molecular weights:1500 and 2500. two different lactide purification processes such as: recrystallization in ethyl acetate and washing the crude lactide with ether before recrystallization in ethyl acetate were evaluated. it has been demonstrated that increasing the molecular weight of ...

background: disulfiram is oral aldehyde dehydrogenase (aldh) inhibitor that has been used in the treatment of alcoholism. recent studies show that this drug has anticancer properties; however, its rapid degradation has limited its clinical application. encapsulation of disulfiram polymeric nanoparticles (nps) may improve its anticancer activities and protect rapid degradation of the drug. mater...

A polyelectrolyte ionomer complex (PIC) composed of cationic and anionic polymers was developed for nanomedical applications. Here, a poly(ethylene glycol)-poly(lactic acid)-poly(ethylene imine) triblock copolymer (PEG-PLA-PEI) and a poly(aspartic acid) (P[Asp]) homopolymer were synthesized. These polyelectrolytes formed stable aggregates through electrostatic interactions between the cationic ...