Materiales avanzados

 

Materiales avanzados

Graphene Nanoplatelets/Polylactic Acid Conductive Polymer Composites: Tensile, Thermal and Electrical Properties
27/05/2024 - The addition of GNP filler into an insulative PLA matrix, above the percolation threshold (7 wt %), has successfully developed a continuous conductive network. The electrons can move freely within...
Polylactic Acid?Based Film Modified with Nano?Ag?Graphene?TiO2: New Film versus Recycled Film
25/11/2023 - The increase in the polymer?based materials needs has induced along the waste accumulation, thus argued higher interest in recycling. The study aims to assess the structural, morphological,...
Development and characterization of groundnut shell?derived biocarbon?reinforced polylactic acid composite filaments for FDM
17/05/2024 - Waste banana pseudostem was used to prepare BCNA?DcoM, which exhibits pH?responsive switchable wettability with a response time of 3?s and three?dimensional porous structure. It shows 98% separation...
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...
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...
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...
Study on the Properties of PLA- and PP-Based Films for Food Applications Incorporating Orange Peel Extract from Agricultural by-Products
29/04/2024 - The aim of this work was to develop active packaging based on polypropylene (PP) and polylactic acid (PLA) matrices using a high value by-product extracted from orange peel as an active compound for...
Enhanced Bone Healing in Critical-Sized Rabbit Femoral Defects: Impact of Helical and Alternate Scaffold Architectures
29/04/2024 - This study investigates the effect of scaffold architecture on bone regeneration, focusing on 3D-printed polylactic acid–bioceramic calcium phosphate (PLA-bioCaP) composite scaffolds in...
Characterization of Biodegradable Polymers for Porous Structure: Further Steps toward Sustainable Plastics
19/04/2024 - Plastic pollution poses a significant environmental challenge, necessitating the investigation of bioplastics with reduced end-of-life impact. This study systematically characterizes four promising...
Evaluation of the Viability of 3D Printing in Recycling Polymers
16/04/2024 - The increased use of plastics in industrial and agricultural applications has led to high levels of pollution worldwide and is a significant challenge. To address this plastic pollution, conventional...
OH End-Capped Silicone as an Effective Nucleating Agent for Polylactide—A Robotizing Method for Evaluating the Mechanical Characteristics of PLA/Silicone Blends
18/04/2024 - Current research on materials engineering focuses mainly on bio-based materials. One of the most frequently studied materials in this group is polylactide (PLA), which is a polymer derived from...
Preparation of efficient and eco?friendly solid polymer electrolyte based on anionic polyurethane dispersion, polyethylene oxide, and halloysite nanotube
17/04/2024 - Providing a new pathway for conducting lithium ions in the composition electrolyte by Halloysite nanotube for high?voltage lithium metal batteries.With the ever?increasing need for energy storage...
Polyhydroxyalkanoate Production from Eucalyptus Bark’s Enzymatic Hydrolysate
12/04/2024 - In recent years, polyhydroxyalkanoates (PHAs) have gained notoriety because of their desirable properties that include proven biodegradability, biocompatibility, and thermal stability, which make...
Effect of hydroxyapatite and pulsed electromagnetic field on osteogenic differentiation of human stem cells seeded onto 3D?printed polycaprolactone scaffolds for future bone graft transplantation
11/04/2024 - Bone graft transplantation is a risky procedure mainly due to postoperative complications. Tissue engineering is an alternative to regenerating bone tissue by seeding mesenchymal stem cells into 3D...
Establishment of low?cost production platforms of polyhydroxyalkanoate bioplastics from Halomonas cupida J9
08/04/2024 - An efficient genome?editing approach was established in Halomonas cupida J9. H. cupida J9 was engineered to utilize xylose, a glucose?xylose mixture or corn straw hydrolysate for unsterile...
Exploring the substrate spectrum of phylogenetically distinct bacterial polyesterases
09/04/2024 - Graphical Abstract and Lay SummaryOver the last years, utilization of enzymes in degradation of polymers has emerged as an environmentally friendly asset in tackling the pressing challenges of...
Polylactic acid/epoxidized linseed oil/polypropylene grafted maleic anhydride: A promising combination of toughness and rigidity
09/04/2024 - Hybrid polymeric materials with outstanding microwave absorbing properties were prepared by in situ polymerization of aniline in the presence of EVA/CNT/GNP suspension.AbstractMicrowave?absorbing...
Driving Factors in Carbon Emission Reduction in Prefabricated Building Supply Chains Based on Structural Equation Modelling
10/04/2024 - As one of the development paths of construction industrialization, prefabricated buildings (PBs) are an important means for China’s construction industry to achieve the...
The Characterization of a Biodegradable Mg Alloy after Powder Bed Fusion with Laser Beam/Metal Processing for Custom Shaped Implants
06/04/2024 - A new Mg-Zn-Zr-Ca alloy in a powder state, intended to be used for custom shaped implants, was obtained via a mechanical alloying method from pure elemental powder. Further, the obtained powder alloy...
Electrospun Fenoprofen/Polycaprolactone @ Tranexamic Acid/Hydroxyapatite Nanofibers as Orthopedic Hemostasis Dressings
08/04/2024 - Dressings with multiple functional performances (such as hemostasis, promoting regeneration, analgesia, and anti-inflammatory effects) are highly desired in orthopedic surgery. Herein, several new...
Comprehensive study of antimicrobial polycaprolactone/clay nanocomposite films: Preparation, characterization, properties and degradation in simulated body fluid
05/04/2024 - SEM images of PCL/clay nanocomposite films before and after degradation in PBS buffer at 37°C for 45 days.Even though the biodegradability of polycaprolactone (PCL) and its nanocomposites is lower...