316L stainless steel is the most commonly used metallic material in the manufacture of orthopedic implants. To achive better properties metal implants often coated with biocomposites. A sol–gel method was used for coating of Poly lactic acid (PLA)/Hydroxyapatite nanopowder (nHA) on stainless steel 316L substrate. The X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) wer...

Abstract The application of poly(lactic acid) (PLA) has been limited in flame-retardant field, and modification usually deteriorates its mechanical properties. In this study, a reactive hexa(ethylene oxide)-cyclotriphosphazene (HCCP-EP) was synthesized used to improve the fire retardancy PLA. As result, limiting oxygen index PLA increased from 19.5% 27.3% with an addition 3 wt% HCCP-EP, PLA/HCC...

A new biomanufacturing system allowing to produce three-dimensional matrices (scaffolds) with well defined internal geometries, uniform pore distribution and good adhesion among different adjacent layers. Polymers selected are Poly ε-caprolactone (PCL) and Poly Lactic Acid (PLA), both these polymers are used in medical applications. These two polymers are interesting biomaterials because they a...

Bio-based and (bio)degradable polymers constitute an important material innovation because they reduce the amount of waste materials inducing persistent microplastics can offer similar benefits to conventional polymer materials. Poly(butylene succinate) poly(lactic acid) blends exhibit interesting properties be possible alternatives some traditional polymers. Some their tailored by adding small...

High temperature rubbing is a fast and low-cost method to prepare highly oriented films of polymers. This contribution describes the fabrication smooth pin-hole-free poly(lactic acid) (PLA) thin controlled structure morphology using combination at moderate (T ≤ 100°C) thermal annealing. We investigate impact annealing duration on rubbed PLLA stereo-complex (SC) films. The importance parameters ...

Poly(lactic acid) (PLA) is one of the most important ecological thermoplastics due to its good mechanical properties. In light this, investigations related effects PLA processing parameters are as they affect final product performance. This work aimed determine viscosity-temperature coefficient (?) and pseudoplastic index (n) estimate degradation rate during using an internal mixer. The viscosi...

In this study, wear behavior of Poly Lactic Acid (PLA) parts manufactured by one the additive manufacturing techniques Fused Deposition Modelling (FDM) is investigated and modelled via linear non-linear identification. Transfer Function, Process Model Nonlinear Autoregressive with Exogenous Input (NARX) model are used as modelling. Identified models established according to tests conducted on P...

Biochar has emerged as a filler material for bio-degradable composites with favorable thermal and mechanical properties. Therefore, biochar is used in poly (lactic acid) (PLA) PLA/thermoplastic starch (TPS) based composites. The crystallization thermo-analytical properties of these blends increasing amounts (20 to 50 wt%) are investigated. In the thermogravimetric analysis, PLA/char composites’...

In this work, the effects of Chicken egg shell powder (ESP) on properties Poly(Lactic Acid) PLA/ESP composite films (products) were examined. 4 wt.% PLA solution prepared and ESP added to at wt. %10, %20, %30, %50. by film-casting method. The mechanical thermal behaviours composites investigated using fourier transform infrared spectroscopy (FTIR), xray diffraction analysis (XRD), thermogravime...

We examined the therapeutic activity of betamethasone disodium 21-phosphate (BP) encapsulated in biocompatible and biodegradable blended nanoparticles of poly (D,L-lactic/glycolic acid) (PLGA)/poly(D,L-lactic acid) (PLA) homopolymers and polyethylene glycol (PEG)-block-PLGA/PLA copolymers (stealth nanosteroid) in experimental arthritis models. Various stealth nanosteroids with a size of 45 to 1...