Results 91 to 100 of about 2,793 (264)

Long‐Time Thermal Aging of Perfluoroalkoxy Polymers for Electrical Insulation: Structural and Physical Properties Evolutions

open access: yesJournal of Applied Polymer Science, EarlyView.
This work focuses on the investigation of the influence of a long‐time exposition to accelerated thermal aging on the physicochemical structure and properties of PFA. Results show a decrease in the melting temperature and crystal ratio due to chemical aging.
Victor Henri   +3 more
wiley   +1 more source

Thermomechanical Pathways for Accurate Microstructural Control of Ti–7Ag Alloy: Towards a New Generation of Antibacterial Materials for Medical Applications

open access: yesMetals
This study delved into exploring microstructural states in a Ti–7Ag alloy to achieve targeted functional and structural properties. Specifically, the focus was on attaining a homogeneously precipitated state and a solid solution, known for their ...
Julie Deya   +3 more
doaj   +1 more source

Phosphorylation of Milkweed Fibers With a Phosphate Ester: Effect on Fiber Properties and Optimization of Reaction Conditions

open access: yesJournal of Applied Polymer Science, EarlyView.
The phosphorylation of milkweed fibers using the phosphate ester/urea system was optimized. The impact of reaction temperature, duration, and phosphate ester ratio on the efficiency of phosphorylation was investigated using the design of experiments approach.
Ahmed Azrrar   +4 more
wiley   +1 more source

Study of the ThermoMechanical Treatment Post-Deformation Maintaining Time Influence on the Mechanical Characteristics of the MicroAlloyed Steels

open access: yesThe Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2007
This paper-work shows the results of the laboratory researches of the postdeformation maintaining time influence on the physical-mechanical characteristics of the flat microalloyed steels, at high temperature thermomechanical treatments.
Elisabeta VASILESCU   +2 more
doaj  

Citric‐Acid Polyester‐Modified Melamine–Formaldehyde Resins: Mechanistic Insights and Implications for Greener Decorative Laminates

open access: yesJournal of Applied Polymer Science, EarlyView.
Driven by the need for more sustainable materials in the laminate industry, poly(glycerol citrate) was introduced as a bio‐based modifier that significantly altered the cure kinetics and structural evolution of melamine–formaldehyde resins. Correlated FTIR, DSC, TGA, and rheological analyses revealed accelerated network formation, enabling lower ...
Martina Duller   +3 more
wiley   +1 more source

Material Characterization of Lignin‐Filled Polypropylene Composites

open access: yesJournal of Applied Polymer Science, EarlyView.
Ground and spray‐dried lignin powders are compared as fillers for polypropylene composites. Differences in powder preparation methods are associated with differences in powder characteristics and composite behavior after melt compounding. Spray‐dried lignin produces smaller particles and fewer large agglomerates, while a 5 wt% lignin loading provides a
Sungjun Hwang   +3 more
wiley   +1 more source

The Influence of Thermomechanical Treatments on the Mechanical Properties of Some Al-Zn-Mg-Cu Alloys

open access: yesThe Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science
In this paper, the variation of some mechanical properties was studied according to the values of the thermomechanical processing parameters to which an aluminium alloy of the Al-Zn-Mg-Cu series was subjected.
Marian-Iulian NEACȘU
doaj   +1 more source

Enhanced strategies for cuproptosis‐like death in bacterial infection treatment

open access: yesBMEMat, EarlyView.
This review summarizes and examines the molecular mechanisms underlying cuproptosis‐like death. Furthermore, multi‐strategy efficacy enhancement and potential enhancement approaches are analyzed. Abstract Copper, a classical antibacterial metal, has long been of interest and widely used in medical and public health applications.
Wenqi Wang   +7 more
wiley   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu   +8 more
wiley   +1 more source

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