Results 91 to 100 of about 516,120 (336)

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz   +3 more
wiley   +1 more source

Microstructure evolution and mechanical properties of Q690D steel repaired by wire based laser directed energy deposition

open access: yesVirtual and Physical Prototyping
A wire-based laser directed energy deposition process was developed to repair Q690D steel. The microstructure evolution, phase transformation and mechanical properties of the repaired specimens were investigated in detail. Excellent metallurgical bonding
Wei Guo   +6 more
doaj   +1 more source

Melt Grafting of Geometry‐Tailored Voltage Stabilizers for High‐Performance Polypropylene Insulation

open access: yesAdvanced Functional Materials, EarlyView.
A scalable one‐step melt grafting strategy is developed to enhance the dielectric properties of isotactic polypropylene by covalently incorporating thermally stable aromatic voltage stabilizers. This solvent‐free approach improves volume resistivity and DC breakdown strength through deep trap formation and charge localization, offering a sustainable ...
Nazirul Mubin bin Normansah   +9 more
wiley   +1 more source

Tough Love in Tough Times

open access: yesStudies in the Maternal, 2012
This paper examines the cultural politics of 'thrift' and 'tough love'. It reflects upon the significance of notions of 'good parenting' in policy and popular debates around social mobility and aspiration. In particular, it reviews the profound importance of notions of 'poor parenting' in the culturalisation of poverty, whereby poverty is seen to be a ...
openaire   +1 more source

Atomistic Representation of Anomalies in the Failure Behaviour of Nanocrystalline Silicene

open access: yes, 2017
Silicene, a 2D analogue of graphene, has spurred a tremendous research interest in the scientific community for its unique properties essential for next generation electronic devices. In this work, for the first time, we present a molecular dynamics (MD)
Islam, Md Mahbubul   +4 more
core   +2 more sources

Robust and Reversible Thermofluorescence in Solvent‐Free Thermoplastic Polyurethane Composites

open access: yesAdvanced Functional Materials, EarlyView.
Thermofluorescent polymer composites with high‐contrast optical outputs are prepared by solvent‐free blending of indenoquinacridone dye into a thermoplastic polyurethane matrix. The temperature‐dependent fluorescence originates from aggregation–dissociation of the dye molecules, regulated by competing hydrogen bonds from the polymer matrix.
Guanghua Yu   +8 more
wiley   +1 more source

On the Race for More Stretchable and Tough Hydrogels

open access: yesGels, 2019
Hydrogels are tridimensional networks that are able to retain important amounts of water. These soft materials can be obtained through self-assembling processes involving either hydrophilic molecules or polymers, allowing the formation of the ...
Santiago Grijalvo   +2 more
doaj   +1 more source

Improving the fracture toughness and the strength of epoxy using nanomaterials--a review of the current status.

open access: yesNanoscale, 2015
The incorporation of nanomaterials in the polymer matrix is considered to be a highly effective technique to improve the mechanical properties of resins.
N. Domun   +5 more
semanticscholar   +1 more source

Fracture toughness testing of polymer matrix composites [PDF]

open access: yes
A review of the interlaminar fracture indicates that a standard specimen geometry is needed to obtain consistent fracture toughness measurements in polymer matrix composites.
Grady, Joseph E.
core   +1 more source

Influence of matrix toughness and interfacial strength on the toughness of epoxy composites with ductile steel fabric reinforcement [PDF]

open access: yes, 2015
In the last decades, several studies have been performed on polymers reinforced with steel cords or wires. However, the diameter of these steel reinforcements was still quite large (200 micron and more).
Degrieck, Joris   +3 more
core   +2 more sources

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