Results 51 to 60 of about 18,479 (276)

Influence of mold temperature and annealing on the microstructure and mechanical properties of ESO-plasticized PP/CL composites [PDF]

Polyolefins Journal
Composites of polypropylene (PP) and calcium lactate (CL) with a constant weight percentage of 60% and 40%, respectively, were compounded with 3, 5 and 7 phr of epoxidized soybean oil (ESO) plasticizer using an internal mixer.
Buncha Suksut, Pathamanat Poonkasem, Sirirat Prasittinawa, Patcharapon Somdee   +3 more
doaj   +1 more source

Safety Assessment of Recycled Plastics from Post-Consumer Waste with a Combination of a Miniaturized Ames Test and Chromatographic Analysis

Recycling, 2023
European circular economy goals require the use of recycled polymers in sensitive applications such as food packaging. As plastic recyclates can contain unknown post-consumer substances, the European Food Safety Authority evaluates recycling processes ...
Elisa Mayrhofer, Lukas Prielinger, Victor Sharp, Bernhard Rainer, Christian Kirchnawy, Christian Rung, Anita Gruner, Mladen Juric, Arielle Springer   +8 more
doaj   +1 more source

Safety of Sodium‐Ion Batteries: Evaluation and Perspective from Component Materials to Cells, Modules, and Packs

Advanced Energy Materials, EarlyView.
This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim, Seoa Kim, Erik A. Wu, Darren H. S. Tan, Shawn Peng, Xiaolin Li   +5 more
wiley   +1 more source

Multi-level modelling of the hydrodynamics in gas phase polymerisation reactors [PDF]

, 2005
The gas-solid fluidised bed process is the most versatile process for the production of polyolefins, because it allows the production of polyolefins with a broad distribution of both the product density and molecular weight.
Bokkers, Gijsbertus Albert
core   +1 more source

Molecular and macromolecular structure changes in polyamide 11 during thermal oxidation [PDF]

, 2014
The present article reports a study of thermal oxidation of unstabilized polyamide 11 films at several temperatures (90–165 °C) under atmospheric pressure and under various oxygen pressures (up to 1.6 MPa) at 110 °C.
FAYOLLE, Bruno, FERNAGUT, François, GUILMENT, Jean, OKAMBA-DIOGO, Octavie, RICHAUD, Emmanuel, VERDU, Jacques   +5 more
core   +7 more sources

Enabling Long Term, Shelf‐Stable Perovskite Solar Cells: Alumina Barriers to Protect Perovskite Devices from Moisture and Oxygen

Advanced Energy Materials, EarlyView.
This study reports a packaging strategy for perovskite photovoltaic devices using atomic layer deposition (ALD) of aluminum oxide. Through optimization of deposition temperature and oxidant chemistry, researchers develop a 50 nm barrier layer with superior water vapor (WVTR) and oxygen transmission rates (OTR).
Melissa A. Davis, Kelly Schutt, Duong Nguyen Minh, Xinwen Zhang, Chenchao Xie, Ross A. Kerner, Tianran Liu, Matthew O. Reese, Laura T. Schelhas, Michael D. Kempe, Axel F. Palmstrom, Joseph M. Luther   +11 more
wiley   +1 more source

Functionalized Polyolefin With Photoresponsive Surface

ChemistryEurope
The introduction of stimulus‐responsive groups can give polymers some material properties that cannot be realized simply by design and synthesis. Polyolefins, due to their nonpolar nature, suffer from poor compatibility with polar materials; however ...
Qiuhui Tian, Zhiwei Xia, Yanyan Wang, Zhiyi Liu, Qiuping Chen, Yu Wang, Fuzhou Wang, Chen Tan   +7 more
doaj   +1 more source

Potential of Incorporation of Antimicrobial Plant Phenolics Into Polyolefin-Based Food Contact Materials to Produce Active Packaging by Melt-Blending: Proof of Concept With Isobutyl-4-Hydroxybenzoate

Frontiers in Chemistry, 2019
There is an increasing interest for active food packaging incorporated with natural antimicrobial agents rather than synthetic preservatives. However, most of plastics for direct contact with food are made of polyolefins, usually processed by extrusion ...
Amandine Cottaz, Lynda Bouarab, Justine De Clercq, Nadia Oulahal, Pascal Degraeve, Catherine Joly   +5 more
doaj   +1 more source

Multiscale Modeling of Binary Polymer Mixtures: Scale Bridging in the Athermal and Thermal Regime

, 2010
Obtaining a rigorous and reliable method for linking computer simulations of polymer blends and composites at different length scales of interest is a highly desirable goal in soft matter physics.
Allen M. P., Binder K., Catlett C., de Gennes P. G., Doi M., Frenkel D., J. McCarty, M. G. Guenza, McQuarrie D. A., Sperling L. H., Tang H., Yamakawa H.   +11 more
core   +1 more source

Review : Auto-oxidation of aliphatic polyamides [PDF]

, 2013
The literature on oxidation kinetics of polyamides and model compounds has been reviewed in order to try to extract suitable information for non-empirical kinetic modeling.
FAYOLLE, Bruno, FERNAGUT, François, GUILMENT, Jean, OKAMBA-DIOGO, Octavie, RICHAUD, Emmanuel, VERDU, Jacques   +5 more
core   +6 more sources