Results 31 to 40 of about 128,191 (280)
An experimental study on process-oriented scale-up/scale-down in blown film extrusion [PDF]
AIP Conference Proceedings, 2020 The transfer of experimental test results from a small-scale system to a large-scale production system is known as scale-up or, conversely, scale-down. For film-producing companies, scale-up is a common procedure in the development process of new composite films or material recipes, where the main objective is to obtain equal film properties in the ...
Dohm, Christoph +2 more
openaire +3 more sources
Journal of Chemistry, 2019 Air filtration materials such as protective masks can protect humans from airborne pathogens; however, most of the existing protective filtration materials are aimed to intercept bacteria. Therefore, in this work, modified polypropylene- (PP-) based melt-
Chao Liu +4 more
doaj +1 more source
Physico-mechanical and structural characterization of polyethylene films and thermoplastic pinto bean starch [PDF]
PolímerosStarch is a biopolymer that is abundant in nature, low-cost, biodegradable, and can be transformed into a thermoplastic material. This work evaluates the films’ physicochemical, thermal, and mechanical properties based on low-density polyethylene (LDPE ...
Tomás Jesús Madera-Santana +3 more
doaj +1 more source
Data in Brief, 2017 Transport, mechanical and global migration data concern multilayer food packaging films with different layouts, all incorporating a layered silicate/polyamide nanocomposite as oxygen barrier layer, and a low-density polyethylene (LDPE) as moisture ...
P. Scarfato +3 more
doaj +1 more source
Interface analysis of three-layer co-extrusion blown film [PDF]
AIP Conference Proceedings, 2019 The three-layer co-extrusion blown film could combine a variety of different characteristics in the extrusion process and significantly decreased cost, therefore this technology is being applied more and more broadly. The flow channel geometry of three-layer co-extrusion blown film die was built and then meshed by ICEM CFD with all-hexahedral elements ...
Ma Xiuqing, Zhai Wenbin, Liu Ming
openaire +1 more source
Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials
Advanced Engineering Materials, EarlyView.Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley +1 more source
UNDERSTANDING RHEOLOGY AND TECHNOLOGY OF POLYMER EXTRUSION [PDF]
, 2019 Polymer basics. Viscosity and unidirectional melt flows. Shear thinning, viscous dissipation, Generalized Newtonian Fluid, power-law. Viscoelasticity, normal stress differences, elongational viscosity, extrudate (die) swell, stress relaxation and ...
Polychronopoulos, Nickolas D. +1 more
core +2 more sources
Investigation of metal flow in bridge die extrusion of Alloy 6063 and subsequent effect on surface quality and weld seam integrity [PDF]
, 2013 This paper describes a detailed study of tube extrusion by simulation using finite element method (FEM). The finite element model used one-sixth of symmetry. The extrusion load, emperature evolution and metal flow were predicted.
Sheppard, Terry, Velay, Xavier, Niu, L.
core +1 more source
Step-change in Enhancing Extrusion as a Unit Operation [PDF]
, 2005 YesExtrusion-a unit operation in polymer processing has been in extensive use since the great age of plastic technology. It is a simple operation that enables within one equipment the sequential conveying of solid polymer chips or powder, their melting ...
Benkreira, Hadj
core +4 more sources
Entropy‐Driven Design of Low‐Melting‐Point Alloys via Compositionally Complex Strategy
Advanced Engineering Materials, EarlyView.Conventional low‐melting‐point alloys (LMPAs) are limited by a narrow compositional space and inherent property trade‐offs. This review presents an entropy‐driven design strategy that overcomes these limitations, ushering in a new class of low‐melting‐point compositionally complex alloys (LMCCAs).
Yinghui Shang +6 more
wiley +1 more source