Extrusión

Extrusión

Liquid Oil Trapped inside PVA Electrospun Microcapsules
01/12/2022 - Electrospinning makes it possible to obtain solid fibers, in addition to core-shell fibers, using coextrusion. However, an exhaustive control of parameters allows the core-shell fibers from emulsion...
Preparation and Properties of Waste Corrugated Paper Fiber/Polylactic Acid Co-Extruded Composite
28/10/2022 - In order to explore the methods of recycling waste paper, reduce environment pollution, and develop a circular economy, the application of waste corrugated paper to the strengthening of polylactic...
Oriented Tapes of Incompatible Polymers Using a Novel Multiplication Co-Extrusion Process
16/09/2022 - Continuous tapes of polypropylene (PP) and high-density polyethylene (HDPE) were produced using a novel multiplication co-extrusion process. The structure of the PP/HDPE tapes consists of...
Experiment and theory study on the electrical property of MWCNT filled thermoplastic polyurethane bilayer composites with tunable layer thickness ratios
01/11/2022 - The thermoplastic polyurethane (TPU)/multi-walled carbon nanotubes (MWCNTs) filled TPU (cTPU) bilayer composites with tunable layer thickness ratios were fabricated via layer-assembly coextrusion,...
Investigation of Recycled and Coextruded PLA Filament for Additive Manufacturing
14/06/2022 - Polylactide acid (PLA) is one of the most used plastics in extrusion-based additive manufacturing (AM). Although it is bio-based and in theory biodegradable, its recyclability for fused filament...
PHB/PLA plasticized by olive oil and carvacrol solvent-cast films with optimised ductility and physical ageing stability
01/06/2022 - Polylactic acid (PLA) is a bio-based polyester, widely used in various compostable food packaging film applications. Polyhydroxybutyrate (PHB), the most commercialised polymer of the PHA...
A Practical Approach for Uncertainty Management in Rubber Manufacturing Processes Using Physics-Informed Real-Time Models
17/05/2022 - Industrial manufacturing management can benefit from the use of modeling. For a correct representation of the manufacturing process and the subsequent management, the models must incorporate the...
Enhancing Thermal Insulation of EPDM Ablators via Constructing Alternating Planar Architectures
12/04/2022 - Ethylene–propylene–diene monomer (EPDM) composites were usually enhanced with ablative additives to protect solid rocket motor (SRMs) casings. However, the poor thermal...
Controlled metoprolol tartrate release from poly(?-caprolactone)-poly(?-caprolactone)/polyethylene oxide/metoprolol tartrate composites with alternating multi-layered structures prepared through layer-multiplying co-extrusion
- Multi-layered structure design has provided a promising and powerful strategy for the fabrication of controlled-release dosage forms. However, a convenient and effective preparation technology is...
Controlled directional drug release from poly(?-caprolactone)/polyethylene oxide/metoprolol tartrate composites with multi-layered structures
- Nowadays, it is a challenge to achieve the controlled directional release of multi-layered dosage forms due to the difficulty of flexible and controllable regulation of the layered structure....
Investigation of the Polymer Coextrusion Process: A Review
24/03/2022 - A review of the different coextrusion processes and the related processing problems is presented. A one-dimensional bilayer coextrusion Poiseuille flow model is first developed with Newtonian and...
Bisphenol A Removal Using Visible Light Driven Cu2O/PVDF Photocatalytic Dual Layer Hollow Fiber Membrane
- Bisphenol A (BPA) is amongst the endocrine disrupting compounds (EDCs) that cause illness to humans and in this work was removed using copper (I) oxide (Cu2O) visible light photocatalyst which has a...
Improving Layer Adhesion of Co-Extruded Polymer Sheets by Inducing Interfacial Flow Instabilities
31/01/2022 - Co-extrusion is commonly used to produce polymer multilayer products with different materials tailoring the property profiles. Adhesion between the individual layers is crucial to the overall...
Unprecedented cell structure variation in multilayered alternating PS/PMMA foams
10/12/2021 - The objective of the present work was to study the cell structure variation in multilayered alternating polystyrene/poly(methyl methacrylate) (PS/PMMA) foams with the increase of the layer number....
Study and optimization of core-shell capsules produced by annular jet breaking coextrusion
- Oil-alginate capsules were produced by annular jet breaking coextrusion. Effects of alginate flow rate (30–50 mL/min), oil flow rate (4–18 mL/min), applied frequency (80–200 Hz), calcium...
In Situ Detection of Interfacial Flow Instabilities in Polymer Co-Extrusion Using Optical Coherence Tomography and Ultrasonic Techniques
27/08/2021 - Co-extrusion is a widely used processing technique for combining various polymers with different properties into a tailored multilayer product. Individual melt streams are combined in a die to form...
Optimization of Polysaccharide Hydrocolloid for the Development of Bioink with High Printability/Biocompatibility for Coextrusion 3D Bioprinting
28/05/2021 - Bioink is the main component of 3D bioprinting process and is crucial for the generation of sophisticated 3D structures through precise spatial control. Therefore, bioink’s core material must have...
Interfacial Phenomena in Multi-Micro-/Nanolayered Polymer Coextrusion: A Review of Fundamental and Engineering Aspects
28/01/2021 - The multilayer coextrusion process is known to be a reliable technique for the continuous fabrication of high?performance micro-/nanolayered polymeric products. Using laminar flow conditions to...
Development of Inorganic Particle-Filled Polypropylene/High Density Polyethylene Membranes via Multilayer Co-Extrusion and Stretching
19/01/2021 - This work is made to ascertain the effects of mineral fillers, namely calcium carbonate and talc, on the morphology and properties of multilayer polypropylene (PP)/high-density polyethylene (HDPE)...
Experimental investigation of flame retardancy and mechanical properties of APP/EG/TPU multilayer composites prepared by microlayer coextrusion technology
04/11/2020 - AbstractIn this paper, ammonium polyphosphate(APP)/expandable graphite(EG)/thermoplastic polyurethane (TPU) composites were prepared by microlayer coextrusion technology, APP and EG fillers had good...
Controlling interfacial instabilities in PP/EVOH coextruded multilayer films through the surface density of interfacial copolymers
18/04/2020 - Coextruded polypropylene/tie/ethylene vinyl alcohol/tie/polypropylene (PP/tie/EVOH/tie/PP) films often exhibit optical defects which appear as randomly distributed scattering objects, in the...