Results 121 to 130 of about 98,472 (317)

Kinetic equations for thermal degradation of polymers

, 2003
Kinetic equations are analyzed for thermal degradation of polymers. The governing relations are based on the fragmentation-annihilation concept. Explicit solutions to these equations are derived in two particular cases of interest.
Aleksey D Drozdov, Allen N S, Chan J H, Costas M E, Elhanbaly A, Ernst M H, Ferry J D, Grassie N, Huang J, Kane L, Kostoglou M, Krapivsky P L, Singh P, Ziff R M   +13 more
core   +1 more source

All-PP composites (PURE®) with unidirectional and cross-ply lay-ups: dynamic mechanical thermal analysis

eXPRESS Polymer Letters, 2007
All polypropylene (all-PP) composite laminates with unidirectional (UD) and cross-ply (CP) lay-ups were produced by hot consolidation from oriented coextruded PP tapes (PURE®). The consolidation of the tapes, wound on a steel plate, occurred in autoclave
doaj   +1 more source

4D Printing of Composite Thermoplastic Elastomers for Super‐Stretchable Soft Artificial Muscles

Journal of Applied Polymer Science, EarlyView.
ABSTRACT This study explores the development of soft, super‐stretchable artificial muscles by 4D printing of composite thermoplastic elastomers. A propylene‐based elastomer, combined with carbon black (CB) nanoparticles, is utilized to develop nanocomposite elastomers with enhanced mechanical properties.
Abbas Bayati, Davood Rahmatabadi, Mahdi Khajepour, Majid Baniassadi, Karen Abrinia, Mahdi Bodaghi, Mostafa Baghani   +6 more
wiley   +1 more source

Influence of Thermoplastic Polyurethane Content on Interlaminar Adhesion of Hot‐Pressed Aramid Fabrics

Journal of Applied Polymer Science, EarlyView.
Optimized hot‐pressing conditions (200°C, 10 MPa, 25 min) were identified using a DOE approach. Two TPU layers (29.9 wt%) achieved the best interlaminar adhesion, yielding a 67% increase in T‐peel strength. Dynamic mechanical analysis revealed lower activation energy at optimal composition, indicating improved fiber‐matrix interaction.
Icaro José de Araújo Silva, Joziel Aparecido da Cruz, Sandro Campos Amico, Otavio Bianchi   +3 more
wiley   +1 more source

On the Description of Electrode Materials in Lithium Ion Batteries Based on the Quantification of Work Functions

Batteries &Supercaps, EarlyView.
Ionic and electronic work functions of prototypical electrode materials, i. e. LixFePO4 and LixMn2O4, in lithium ion batteries have been measured as a function of x, i. e., the state of charge. The results are discussed in the context of thermodynamic Born cycles. It is concluded that interfacial properties must be highly relevant.
Johanna Schepp, Jona Schuch, Jan P. Hofmann, Karl‐Michael Weitzel   +3 more
wiley   +1 more source

Influence of CaCO3 in pultruded glass fiber/unsaturated polyester resin composite on flexural creep behavior using conventional and time-temperature superposition principle methods

, 2020
A. N. Johari, M. R. Ishak, Zulkiflle Leman, Mohd Zulkhairi Mohd Yusoff, M. R. M. Asyraf   +4 more
openalex   +2 more sources

Engineering and Structural Elucidation of a Sac7d‐Derived IgG Fc‐Specific Affitin and Its Application for the Light‐Controlled Affinity Purification of Antibodies

ChemBioChem, EarlyView.
An affitin derived from the Sac7d scaffold enables the light‐controlled affinity purification of antibodies under physiological conditions, thus overcoming limitations of protein A chromatography. X‐ray crystallographic analysis and affinity measurements reveal complex formation with Fc at the CH2/CH3 junction, similar to protein A/G and FnRn. Combined
Felix Veitl, Andreas Eichinger, Peter Mayrhofer, Markus R. Anneser, Mauricio Testanera, Kilian Rauscher, Matthias Lenz, Arne Skerra   +7 more
wiley   +1 more source

Study on Rapid Calculation and Graded Early Warning System for Conductor Temperature of 10 kV XLPE Cables

IEEE Access
Accurate and rapid calculation for cable’s conductor temperature, coupled with timely alerts, is crucial for the safe and stable operation of cables.
Qishun Li, Sichao Chen, Haifeng Qiu, Guohua Zhou, Bin Lv   +4 more
doaj   +1 more source

Deuterium NMR in Chiral Polymer‐Based Bimesophasic Lyotropic Mixtures: From the Demixing Process to Analytical Applications

Chemistry–Methods, EarlyView.
Bimesophasic lyotropic chiral systems are prepared from polypeptide and polyacetylene helical polymers in organic solvents. Combined with spatially resolved 2H nD NMR experiments, they provide a novel and original tool to collect independent sets of anisotropic quadrupolar data, with potential applications in chemistry dedicated to spectral ...
Thomas Julien, Boris Gouilleux, Bernard Rousseau, Michael Reggelin, Philippe Lesot   +4 more
wiley   +1 more source

Prediction model for rutting of asphalt concrete pavement considering temperature influence

Case Studies in Construction Materials
This study, based on Perzyna's visco-plastic theory, proposes a new elastic-viscoplastic constitutive model. This model accurately predicts the rutting deformation of asphalt concrete pavement under various temperatures and traffic load conditions ...
Wang Chuhong, Wang Zhichao
doaj