Results 231 to 240 of about 304,137 (289)

Spent Artemisia arborescens as a Biowaste Filler for Melt‐Processed PBSA Biocomposites With Enhanced Disintegration and Aerobic Biodegradation

Polymer Composites, EarlyView.
Spent Artemisia arborescens biomass, recovered after essential‐oil steam distillation, was ground and melt‐compounded with PBSA (10 and 20 wt%), yielding biocomposites with accelerated biodegradation. ABSTRACT Artemisia arborescens is a Mediterranean shrub widely used for essential oil production, generating significant amounts of spent biomass after ...
Erika Indovino, Melania Leanza, Maria Chiara Mistretta, Marco Rapisarda, Alessandra Culmone, Vittorio Farina, Alessandra Carrubba, Giuseppe Impallomeni, Luigi Botta, Paola Rizzarelli   +9 more
wiley   +1 more source

Experimental and Machine Learning‐Based Process Optimization of UDCF/PA11 Composite Laminates for Hydrogen Storage Applications

Polymer Composites, EarlyView.
Process Optimization of UDCF/PA11 Composite Laminates. ABSTRACT This study presents a comprehensive approach to optimizing key processing parameters using the vacuum‐bag‐only hand lay‐up method for unidirectional carbon fiber‐reinforced polyamide 11 laminates intended for novel lightweight hydrogen pressure vessels.
Amir Mehrabianbardar, Zouhaier Jendli, Stéphane Gillet, Pedram Aminharati, Samia Nouira, Khaled Benfriha, Joseph Fitoussi, Mohammadali Shirinbayan   +7 more
wiley   +1 more source

Single Versus Double Screw Extrusion: Impact on Mechanical Performance and Crack Resistance for a Virgin, Recycled, and Blended Polypropylene

Polymer Engineering &Science, EarlyView.
Schematic overview of the study approach and key findings. ABSTRACT To evaluate the influence of extrusion on material performance, three processing methods, single extrusion (1x Ex), double extrusion (2x Ex), and double screw compounding (C), were investigated for virgin polypropylene (vPP), recycled PP (rPP), and a blend containing 10% rPP (rPP10 ...
J. Pötzlbauer, J. Geier, B. Haar, S. Schuschnigg, M. Messiha, T. Koch, C. Maurer, G. Pinter, F. Arbeiter   +8 more
wiley   +1 more source

Single-Stage PET Waste Upcycling into Copolymers: Study of Thermal Properties and Crystallization. [PDF]

Polymers (Basel)
Kirshanov KA, Aliev GS, Ismaylov DA, Lobanova NA, Pogorely AM, Toms RV, Gervald AY.   +6 more
europepmc   +1 more source

Non‐isothermal crystallization kinetics of PET

Polymer Engineering & Science, 2000
AbstractThe crystallization kinetics of poly(ethylene terephthalate) was studied using constant cooling rate, isothermal and quenching experiments. A non‐isothermal crystallization kinetics equation based on a single mechanism was used to analyze the data.
Piccarolo, S., Brucato, V., Kiflie, Z.
openaire   +3 more sources

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Non-Isothermal Crystallization of Polymers

Progress in Polymer Science, 1999
Abstract Traditional studies of crystallization kinetics are often limited to idealized conditions, in which the parameters of state (temperature, pressure, etc.) are constant. In real situations, however, the external conditions change continuously, which makes the kinetics of crystallization dependent on instantaneous conditions, as well as on rate
C Silvestre
exaly   +3 more sources

Isothermal crystallization kinetics of chain‐extended PET

Journal of Polymer Science Part B: Polymer Physics, 2005
AbstractThe crystallization behavior of a commercial chain‐extended PET (foam grade) was evaluated and compared to that of bottle‐grade PET. Cold and melt isothermal crystallization were analyzed by using the Avrami' model. The foam grade PET showed a slower crystallization kinetic compared to the bottle‐grade PET. The Hoffman‐Lauritzen analysis showed
Sorrentino L, Iannace S, Di Maio E, Acierno D   +3 more
openaire   +7 more sources

Isothermal and non‐isothermal crystallization behavior of PET nanocomposites

Polymer Engineering & Science, 2011
Abstract Polyethylene terephthalate (PET)/clay nanocomposites (PCNs) containing 1 wt% Cloisite 30B (C30B) were prepared via melt compounding. Modulated differential scanning calorimetry (MDSC) for isothermally crystallized samples revealed that the third endotherm at the highest temperature may be attributed to the recrystalization ...
Hesam Ghasemi, Pierre J. Carreau, Musa R. Kamal   +2 more
openaire   +2 more sources

Isothermal and non-isothermal crystallization of a fresnoite glass

Journal of Non-Crystalline Solids, 2013
Abstract Several analytical models have been widely applied to determine the activation energy of crystallization, E , and the Avrami index, n . In this work, the parameters E and n for the crystallization of fresnoite (2BaO·TiO 2 ·2SiO 2 ) glass were calculated using different approaches (Ozawa, Kissinger, and Matusita & Sakka).
Alisson M. Rodrigues, Jose M. Rivas Mercury, Valdemar S. Leal, Aluisio A. Cabral   +3 more
openaire   +1 more source

Non-Isothermal and Isothermal Crystallization of Sucrose from the Amorphous State

Pharmaceutical Research, 1994
The crystallization of a model compound, sucrose, from the amorphous solid state has been studied non-isothermally using differential scanning calorimetry to determine crystallization temperature, Tc, and isothermally at 30 degrees C by subjecting samples to 32.4% relative humidity and gravimetrically monitoring water vapor uptake and subsequent loss ...
A, Saleki-Gerhardt, G, Zografi
openaire   +2 more sources