Results 161 to 170 of about 42,818 (302)

Crystallinity, Porosity, and Microstructure of Polyphenylene Sulfide Composite Parts Fabricated by Filament‐Extrusion Additive Manufacturing

open access: yesPolymer Composites, EarlyView.
High‐performance PPS composites for FFF: formulation and characterization linking microstructure and crystallization to adhesion and mechanical properties. ABSTRACT Polyphenylene sulfide (PPS) was compounded with recycled carbon fibers (rCF) and thermal black (TB) particles, followed by injection molding (IM) and extrusion of the compounded composites ...
Dogan Arslan   +3 more
wiley   +1 more source

Overcoming Challenges in 3D Printing of Polyolefins and Their Composites: A Review on Strategies for Improved Printability and Performance

open access: yesPolymer Engineering &Science, EarlyView.
This review integrates the molecular fundamentals, key challenges, and mitigation strategies in polyolefin 3D printing, focusing on shrinkage, warpage, and adhesion control. It highlights material design approaches using recycled polyolefins and functional fillers to improve printability, mechanical properties, and sustainability in additive ...
Malik Hassan   +5 more
wiley   +1 more source

Characteristics, properties and limitations of per‐ or polyfluoroalkyl substances (PFASs) and fluoropolymers

open access: yesPolymer International, EarlyView.
An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley   +1 more source

Super‐capacitive carbon materials with large micropores and rich mesopores synthesized using N, S co‐doped carbon dots as self‐templates

open access: yesResponsive Materials, EarlyView.
Nitrogen‐sulfur co‐doped carbon dots are employed as self‐templates to fabricate hierarchical porous carbon material with a concentrated micropore size distribution of 1.1–1.6 nm and a high mesopore volume ratio up to 47.2%, which shows good capacity and excellent responsive ability as electrodes in electrochemical supercapacitors.
Xi‐Rong Zhang   +4 more
wiley   +1 more source

Effects of Isothermal Treatment on A<sub>g</sub>ZIF-62: Implications on Porosity, Separations, and Grain Boundary Defect Removal. [PDF]

open access: yesSmall Sci
Stone DM   +10 more
europepmc   +1 more source

Unraveling Interband Hot‐Electron Transfer in Hydrogenated Au@Cu2O/TiO2 Heterostructure Nanocrystals for Enhanced Hydrogen Evolution

open access: yesSmall, EarlyView.
Hydrogenated Au@Cu2O/TiO2 nanocrystals with oxygen‐vacancy‐engineered heterostructures enable efficient hot‐electron transfer. A Z‐scheme heterojunction forms between TiO2 and Cu2O, suppressing electron‐hole recombination and leading to a hydrogen evolution rate of 9.3 mmol g−1 h−1, with AQYs of 2.5% at 650 nm and 0.8 % at 800 nm, extending activity ...
Tsai‐Te Wang   +9 more
wiley   +1 more source

Multistep Relaxation Pathway from Glass to Crystal Development in Poly(l‑lactide). [PDF]

open access: yesMacromolecules
Rocchi LA   +4 more
europepmc   +1 more source

A Liquid Ge(IV) Precursor for Low Temperature Plasma Enhanced Atomic Layer Deposition of Germanium Oxide Thin Films

open access: yesSmall, EarlyView.
Utilizing the 3‐(N,N‐dimethylamino)propyl (DMP) ligand, the new liquid Ge(IV) precursor [Ge(DMP)4] has been developed, which possesses adequate volatility, reactivity, and exceptional thermal stability. This precursor is capable of low‐temperature processing of GeO2 and GeOx with tunable film composition and sub‐nm thickness control in a range from 40 ...
Florian Preischel   +10 more
wiley   +1 more source

High Sensitivity Cardiac Troponin I Detection via MP‐Locked Aptamer and Multimeric DNAzyme‐Coupled Hyperbranched Hybridization Chain Reaction

open access: yesSmall, EarlyView.
We report a magnetic particle anchored locked aptamer platform integrated with hyperbranched HCR and DNAzyme amplification for enzyme‐free, ultrasensitive detection of cardiac troponin I. The assay achieves a 0.25 ng/L detection limit within 25 minutes and enables cross‐species MI detection, with machine learning classification reaching 90% accuracy ...
Sayantan Tripathy   +9 more
wiley   +1 more source

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