Results 81 to 90 of about 10,838 (210)

Functional Modification of Chitosan Films: Influence of Chitosan Molecular Weight and Acidic Medium Type

Polymer Engineering &Science, EarlyView.
Schematic depiction of film forming solution composition and preparation method. ABSTRACT The packaging industry relies on plastics as multipurpose materials. However, there is a growing effort to identify alternatives with comparable properties while being environmentally friendly.
Emma‐Josefina Klaisnerová, Lukáš Vápenka, Filip Beňo, Aleš Rajchl   +3 more
wiley   +1 more source

Heating rate effect on the thermal properties of thermoplastic polyolefins

Budownictwo o Zoptymalizowanym Potencjale Energetycznym
This study investigated the impact of two different heating rates (10 and 20 °C/min) on the thermal characteristics of three specific polymers: high-density polyethylene (HDPE), polypropylene (PP) and polyvinylchloride (PVC).
Ohood Hmaizah Sabr, Atheer Hussain Mehdi, Nabeel Hasan Al-Mutairi, Ban Jawad Kadhim, Adam Idzikowski   +4 more
doaj   +1 more source

Application of Non‐Isothermal Network Theory With Curved‐Channel Element Characteristics to Predict Melt Conveying in High‐Performance Single‐Screw Extruders

Journal of Polymer Science, EarlyView.
This study presents a fast and accurate calculation tool to predict conveying of polymer melts in single‐screw extruders. Integrating generalized sub‐models into network theory allows to represent the complex screw shapes and material behavior more realistically. Tests on an industrial extruder show close agreement with experiments, outperforming older
Daniel Herzog, Wolfgang Roland, Christian Marschik, Gerald Berger‐Weber   +3 more
wiley   +1 more source

Impact of Packaging and Recycling Systems on Material Recirculation: A Stage‐Decomposition Model

Packaging Technology and Science, EarlyView.
A system‐level view emerges from decomposing recycling into four stages (participation, collection, sorting and process yield), diagnosing constraints and targeting interventions. Cumulative equivalent uses (CEUs) quantify long‐term retention, revealing marginal improvements at high baselines generate disproportionately larger gains than low‐baseline ...
Diogo Figueirinhas, Daniel Hellström, Henrik Pålsson, Yulia Vakulenko   +3 more
wiley   +1 more source

Roll‐to‐Roll Processing of Biodegradable Multilayer Barrier Packaging Structures

Packaging Technology and Science, EarlyView.
This work demonstrates that novel packaging materials built using biobased and biodegradable materials can be produced in pilot‐scale and converted into functional barrier packaging. The proposed structures are anticipated to make a strong impact in use‐cases where the risk of environmental littering is elevated, such as snacks and take away meals ...
Enni Luoma, Aayush Kumar Jaiswal, Vinay Kumar, Minna Vikman, Kirsi Kataja, Ali Harlin   +5 more
wiley   +1 more source

Moisture Change Model for Active Package of Dry Dosage Forms Under Consumer Use Condition

Packaging Technology and Science, EarlyView.
A simple mathematical model was developed to estimate moisture contents of dry dosage product packaged with desiccant during in‐use condition, where each dosage is taken out periodically. The model utilizes sequential summation of individual steps of package layer's moisture transmission and internal equilibration among the headspace, product and ...
Duck Soon An, Dong Sun Lee
wiley   +1 more source

Application of Circular Economy Principles to Power Generation: Extending the Life of A Hydropower Plant by Pumped Hydro Energy Storage

Sustainable Development, EarlyView.
ABSTRACT The application of circular economy, which aims to maximize efficiency and reduce waste, to renewable energy sources necessitates, given the intermittent nature of the latter, robust energy storage solutions to ensure grid stability and avoid wasting energy.
Ó. Martín‐Llorente, E. Jiménez‐Macias, J. C. Sáenz‐Diez Muro, E. Martínez‐Cámara, J. Blanco‐Fernández   +4 more
wiley   +1 more source

Additive Manufacturing Engineering for Electrochemistry: Conductive High‐Density Polyethylene Filament Expands the Materials Landscape [PDF]

Small Sci
Conductive high‐density poly(ethylene) (HDPE) is introduced as a new material platform for additive manufacturing electrochemistry, expanding the limited polymer feedstocks currently available. A solvent‐free thermal compounding process incorporating 40 wt% carbon black produced a flexible, plasticizer‐free filament with a low bulk resistivity of 16.4 (
Khan M, Bernalte E, Asra R, Tapping R, Oliveira A, Jones A, Muñoz R, Rowley‐Neale S, Crapnell R, Banks C.   +9 more
europepmc   +2 more sources

Tracking Post‐Consumer Packaging Plastics With Global Positioning Systems: Pilot Study in Malaysia

Sustainable Development, EarlyView.
ABSTRACT Landfilling and the mismanagement of packaging plastic waste pose significant challenges in developing countries, especially in Southeast Asia. There is an empirical gap in plastic waste management data, which is largely handled by informal players despite established municipal solid waste collection systems.
Shafeeq Ahmed Syed Ali, I. M. S. K. Ilankoon, Ammar Ehsan Bin Omar, Lian Zhang, Jully Tan   +4 more
wiley   +1 more source

3D‐Printed Crosslinked Nanocellulose‐MXene Hydrogels and Aerogels with High Strength and Conductivity

Small, EarlyView.
This study presents a robust strategy for 3D printing conductive, mechanically resilient MXene–CNF composite structures using a single‐step freeze‐induced crosslinking method. The printed architectures remain stable in both wet and dry states, exhibit high electrical conductivity and mechanical strength, and demonstrate practical application in fully ...
Nuzhet Inci Kilic, Kyle Matthews, Giovanni Marco Saladino, Yury Gogotsi, Per A. Larsson, Mahiar Max Hamedi   +5 more
wiley   +1 more source