Results 51 to 60 of about 4,100 (185)

Performance Evaluation of Compression‐Molded Recycled Mixed Plastic Fractions From Light Packaging

Polymer Engineering &Science, EarlyView.
Mixed HDPE/PP bottle‐cap waste was successfully processed through closed‐loop mechanical recycling. The recycled blends maintained stable thermal, rheological, and mechanical performance over multiple cycles, demonstrating the feasibility of valorizing heterogeneous polyolefin waste without advanced polymer separation.
Raquel Ortega, José Ramón Cárdenas, Rubén Paz, Pablo Bordón, Mario Monzón   +4 more
wiley   +1 more source

An experimental investigation on 3d printing of PETG-KF-based composites: optimization of process parameters for improved mechanical properties

Cogent Engineering
In the field of additive manufacturing, Fused Filament Fabrication (FFF) is a prominent techniques used to create elaborate three-dimensional objects without wasting materials.
Sandeep Varma Kuchampudi, Kunjee Lal Meena, Rama Bhadri Raju Chekuri   +2 more
doaj   +1 more source

Process‐Structure‐Morphing Coupling in Thermally Activated ABS 4D Printing

Polymer Engineering &Science, EarlyView.
Graphical abstract illustrating thermally induced shape morphing in FDM‐printed ABS beams. ABSTRACT Predictable thermally induced morphing in fused deposition modeled thermoplastics remains difficult because the deformation response is highly sensitive to processing and activation conditions.
Grigorios Kostopoulos, Stelios K. Georgantzinos   +1 more
wiley   +1 more source

Circularity in 3D Printing with Poly(Ethylene Terephthalate Glycol): Copolymer Composition Dependent Degradation During Recycling

Macromolecular Materials and Engineering
Reduced environmental impact is commonly cited as a driver for additive manufacturing, but non‐circular end‐of‐life disposition of the printed materials reduces these advantages.
Sierra F. Yost, Jordan C. Smith, Bryan D. Vogt   +2 more
doaj   +1 more source

3D printed polyethylene terephthalate glycol ternary composites with short carbon fiber/ carbon nanotube graphitic reinforcements: Insights into multi-scale synergistic mechanisms

Composites Part C: Open Access
Three-dimensional printed (3DP) Polyethylene Terephthalate Glycol (PETG) ternary composites reinforced with short carbon fibers (sCF) and multi-walled carbon nanotubes (CNT) are reported for the first time. A single-screw extrusion process is employed to
Fivos Simopoulos, George Kampourakis, George Karalis, Benke Li, Emmanouil Porfyrakis, Stavros Katsiaounis, Aaron Soul, Dimitrios Papageorgiou, Marco Liebscher, Konstantinos Papagelis, Apostolos Karanastasis, Nikolaos Papadakis, Lazaros Tzounis   +12 more
doaj   +1 more source

Enhancing PET Printability via Solid‐State Polymerization: Structure‐Processing‐Properties Relationships

Polymer Engineering &Science, EarlyView.
Solid‐state polymerization (SSP) enhances rheological properties, filament stability, and adjusts crystallization issues for improved PET 3D printability. ABSTRACT This paper aims to investigate the impact of solid‐state polymerization (SSP) on the printability of PET for 3D printing.
Benjamin Sandei, Noah Nohadani, Cécile Nouvel, Valérie Massardier‐Nageotte, Claire Barrès, Mohamed Yousfi   +5 more
wiley   +1 more source

Tribological Analysis of PETG Fire-Retardant Samples Manufactured by FFF

Applied Sciences
Additive manufacturing via Fused Filament Fabrication (FFF) has enabled the development of functional components with customized mechanical properties.
Moises Batista, Francisco de Paula Rodriguez-Gonzalez, Gabriela Rodriguez-Garcia, Javier Garcia-Fernandez, Juan Manuel Vazquez-Martinez   +4 more
doaj   +1 more source

Some thermodynamic and kinetic properties of the system PETG‐CO₂, and morphological characteristics of the CO₂‐blown PETG foams

Polymer Engineering & Science, 1999
AbstractThe solubility of CO2 in PETG, a glycol‐modified PET, was measured at different temperatures and over a broad pressure range, and diffusion coefficients were derived at the corresponding conditions. The solubility of CO2 is quits high. For example, almost 15 wt% CO2 can be dissolved in PETG at 35°C and 6.0 MPa. Consequently, CO2 is good blowing
Handa, Y. Paul, Wong, Betty, Zhang, Zhiyi, Kumar, Vipin, Eddy, Sharon, Kehmani, Kishan   +5 more
openaire   +1 more source

Extruder‐based 3D printing of eco‐friendly polymers

Polymer International, EarlyView.
Eco‐friendly polymers, such as biodegradable and recycled materials, offer significant potential for the production of high‐quality 3D‐printed components, provided that their properties and characteristics meet the requirements of extruder‐based 3D printing.
Rui Zhang, Rene Sattler, Paul‐Maximilian Runge, Katalee Jariyavidyanont, Mengxue Du, Holm Altenbach, Mario Beiner, René Androsch   +7 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