Bioplásticos

 

Bioplásticos

Bioabsorbable composite laminates of PLA reinforced with surface?modified Mg wires for orthopedic implant applications
14/05/2024 - Unidirectional and multidirectional laminates of Mg wire?reinforced PLA?matrix composites were manufactured by an improved compression molding strategy that allows excellent control on the position...
Properties of biopolymer blends based on Rugulopteryx okamurae and hydrophobic polycaprolactone (PCL) and hydrophilic acylated soy protein isolated (SPIa)
15/05/2024 - The present study explored the utilization of Rugulopteryx okamurae (RO), an invasive brown seaweed, as a renewable raw material for plastic materials based on biopolymer blends. The goal of this...
Effect of nozzle diameter and raster orientation on tensile and fracture behavior of FDM?PLA specimens under mixed?mode I/II loading
13/05/2024 - Fused deposition modeling (FDM) is a material extrusion technique that works by extruding molten filament on a heated platform. In this method, several manufacturing parameters are engaged which...
Characterization of curing status of commercial tire compounds with vein graphite powder and its particle sizes—Experimental and computational study
10/05/2024 - By incorporating Rhamnus prinoides leaf extract to a PCL polymer solution, a nanofibrous structure resembling skin extracellular matrix (ECM) is produced through electrospinning, resulting in a...
Dimensional and Structural Instability of Electrospun Polylactic Acid Membranes in Liquid Environments: Role of Water, Ethanol, and Temperature
04/05/2024 - Electrospun nanofibres of polylactic acid (PLA) are suggested for a variety of uses, including scaffolds for tissue engineering, components of drug delivery devices, sustainable packaging...
Optimizing the fatigue?resistant actuation performance of gel?based bionic artificial muscles (GBAMs): A comparative study on crosslinking agents
07/05/2024 - The printable PLA nanocomposite filaments filled with modified attapulgite nanorods were prepared by melting compounding and printed via a commercial fused deposition modeling three?dimensional...
Algae infused enhancement of PBAT stiffness: Investigating the influence of algae content on mechanical and thermal properties
09/05/2024 - Piperazine pyrophosphate and aluminum diethylphosphinate exhibit synergistic flame retardant effects when combined with ??cyclodextrin. The formation of P?N?C and P?C?N type flame retardants and the...
Short?Wave Infrared Colloidal QD Photodetector with Nanosecond Response Times Enabled by Ultrathin Absorber Layers
03/05/2024 - The record 4 ns response time in colloidal quantum dot photodiodes (QDPDs) that operate at short?wavelength infrared (SWIR) wavelengths is reported, the first result reaching the requirement of SWIR...
Evaluation of the polycaprolactone hydrolytic degradation in acid solvent and its influence on the electrospinning process
02/05/2024 - This study presents a method for the rapid and efficient synthesis of high vinyl 1,2?polybutadiene liquid rubber using butadiene as the monomer and n?butyllithium as the initiator. By applying...
Nanoarchitectonics and electrocatalytic properties of platinum nanoparticles in weak polyelectrolytes?based multilayer thin films
02/05/2024 - Core?sheath acid?soluble collagen and poly(lactic acid) scaffold as a wound dressing.AbstractThe core–sheath bi?polymeric scaffold has been proven as an encouraging material based on the...
Synthesis of PEGylated amphiphilic block copolymers with pendant linoleic moieties by combining ring?opening polymerization and click chemistry
29/04/2024 - This study focused on synthesizing and characterizing PEGylated amphiphilic block copolymers with pendant linoleic acid (Lin) moieties as an alternative to enhance their potential in drug delivery...
Influence of Programming and Recovery Parameters on Compressive Behaviors of 4D Printed Bio?compatible PVC?PCL Blends
26/04/2024 - This paper introduces a new class of bio?compatible shape memory polymers (SMPs) through blending PVC and PCL. The compressive shape?memory behaviors of 4D?printed SMP PVC with 5 and 10%wt of PCL are...
Development of Anisotropic Electrically Conductive GNP?Reinforced PCL?Collagen Scaffold for Enhanced Neurogenic Differentiation under Electrical Stimulation
25/04/2024 - This study dealt with developing cost?effective electroconductive scaffolds integrating carboxy functionalized graphene nanoplatelets (GNPs) into a Polycaprolactone (PCL)?collagen matrix. Utilizing...
Investigating the impact of laser polishing parameters on surface roughness, mass ablation rate, and optical transmittance of 3D?printed PLA substrates
25/04/2024 - The interaction between the outer layer of PVDF and the shell interface enhances the crystallization of the outer layer PVDF, thereby improving the overall piezoelectric properties of the fiber....
Development of binary and ternary polyester shape memory blends for additive manufacturing
26/04/2024 - Abstract The goal of this work was to create shape memory polymer blends for the additive manufacturing technology of fused filament fabrication. An iterative approach was taken...
Evaluating Agility in Pre-Adolescent Basketball: A Comparative Analysis of CODAT, IAT, and RAT
29/04/2024 - Background: In basketball, agility is essential, characterized by the ability to change direction swiftly and accelerate. Traditional tests like the Illinois Agility Test (IAT) and the Reactive...
Selected Useful Properties of Polylactide Films Containing Nisaplin and Natamax
28/04/2024 - In this article, we present polymer materials consisting of polylactide (PLA) and nisaplin (N), as well as PLA and natamax (X). These materials were obtained using the solvent method and tested by...
High-Temperature Polylactic Acid Proves Reliable and Safe for Manufacturing 3D-Printed Patient-Specific Instruments in Pediatric Orthopedics—Results from over 80 Personalized Devices Employed in 47 Surgeries
26/04/2024 - (1) Background: Orthopedic surgery has been transformed by 3D-printed personalized instruments (3DP-PSIs), which enhance precision and reduce complications. Hospitals are adopting in-house 3D...
Predicting Mechanical Properties of Polymer Materials Using Rate-Dependent Material Models: Finite Element Analysis of Bespoke Upper Limb Orthoses
26/04/2024 - Three-dimensional printing—especially with fused deposition modeling (FDM)—is widely used in the medical field as it enables customization. FDM is versatile owing to the...
Performance of Recycled Polylactic Acid/Amorphous Polyhydroxyalkanoate Blends
28/04/2024 - Blends of polylactic acid (PLA) with amorphous polyhydroxyalkanoate (aPHA) are less brittle than neat PLA, thus enabling their use as biodegradable packaging. This work investigated the impact of...
Mechanical and Rheological Evaluation of Polyester-Based Composites Containing Biochar
28/04/2024 - The use of biodegradable polymers as matrices in composites gives a wide range of applications, especially in niche areas. The assessment of the effect of the filler content on the change of...