Results 81 to 90 of about 23,557 (277)

Modeling and Simulation of Olefin Polymerization at Microstructure Level [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2008
A new model based on a combination of the polymeric multigrain and multilayer models has been developed to predict the polymerization rate, particle growth, morphology, effective parameters on broadening of the molecular weight distribution, number and ...
Ali Dashti, Ahmad Ramazani S.A.
doaj  

Polyethylene–Cellulose Composites From Cellulose Xanthate Solutions

Journal of Applied Polymer Science, EarlyView.
An approach for fabricating cellulose/LDPE composites through cellulose dissolution, LDPE dispersion, and subsequent hot‐pressing. ABSTRACT This study reports a processing route for fabricating cellulose/LDPE composites involving the dispersion of polyethylene powder in a cellulose solution, followed by regeneration to form a continuous cellulose ...
Camila S. Moraes, Matheus F. Flores, Antonio A. S. Curvelo   +2 more
wiley   +1 more source

Impact of Seasonal Composition on the Long‐Term Performance of Post‐Consumer Recycled Polypropylene

Journal of Applied Polymer Science, EarlyView.
Ten batches of post‐consumer polypropylene recyclate were examined over a period of 15 months. Despite identical MFR and density specifications, there were significant differences in their composition, affecting mechanical performance. Elongation at break and crack resistance varied particularly strongly.
Jessica Hinczica, Linda M. Schatz, Jutta Geier, Mario Messiha, Márton Bredács, Thomas Koch, Gerald Pinter, Florian Arbeiter   +7 more
wiley   +1 more source

Reducing nitrate content in lettuce using polyolefin-coated fertilizers

International Journal of Horticultural Science, 2000
Pot experiments were conducted in order to investigate the effects of the controlled-release characteristic, nitrogen form and application method of polyolefin-coated fertilizers on the nitrate content and yield of lettuce (Lactuca sativa L.).
A. Ombódi, M. Saigusa
doaj   +1 more source

Controlled radical polymerization with polyolefin macroinitiator : a convenient and versatile approach to polyolefin-based block and graft copolymers [PDF]

, 2014
This paper introduces the new synthetic methodology of polyolefin-based block and graft copolymers with polar segments [e.g., polystyrene and poly(meth)acrylates].
1155, 1156, 1157, 1158, 1159, 1160, Kaneko, Hideyuki, Kawahara, Nobuo, Matsugi, Tomoaki, Matsuo, Shingo, Saito, Junji, Sugimoto, Ryuichi   +11 more
core   +1 more source

Argon Cold Plasma Modification of Polyethylene Films to Tailor Surface and Barrier Properties

Journal of Applied Polymer Science, EarlyView.
Argon cold plasma treatment of low‐density polyethylene (LDPE) and high‐density polyethylene (HDPE) films induces major changes in surface chemistry and morphology. Contact angles decrease significantly while surface energy increases, improving wettability. FTIR confirms the formation of polar functional groups, while pronounced etching, roughness, and
Aikaterini Spanou, Chrysi Lagkouvardou, Petrina Vogiannou, Vasiliki Korka, Enrico Maurizzi, Ioanna Georgia I. Athanasoulia, Dimitrios Ladakis, Andrea Pulvirenti, Efstathios Z. Panagou, Demetres Briassoulis, Apostolis Koutinas, Theofania Tsironi   +11 more
wiley   +1 more source

Comparative Investigation of Three Mg Doping Strategies in NMC811 Cathodes for High‐Energy Density Lithium‐Ion Batteries

Batteries &Supercaps, EarlyView.
Magnesium (Mg) doping is explored as a stabilization strategy for high‐capacity LiNi0.8Mn0.1Co0.1O2 (NMC811) cathodes. Three doping routes are compared, revealing that solid‐state lithiation delivers the best cycling stability. Operando X‐ray diffraction and electrochemical dilatometry link reduced cation mixing and lattice stabilization to improved ...
Anna Kobets, Filipp Obrezkov, Xiangze Kong, Jouko Lahtinen, Tao Hu, Seyedabolfazl Mousavihashemi, Basit Ali, Ulla Lassi, Tanja Kallio   +8 more
wiley   +1 more source

Transducer measures embedment stresses in electronic modules [PDF]

, 1967
Strain gage load transducer measures axial embedment stresses in resins used for encapsulation of welded electronic modules. It simulates the geometry of an actual electronic component and can be modified in size, shape, and operating ...
Smith, M. H.
core   +1 more source

Highly Conductive, Flexible, and Recyclable Phase Change Thermal Management Film

EcoEnergy, EarlyView.
This Research Highlight focuses on the work that fabricates flexible, recyclable and leak‐proof phase change film via a nacre‐inspired brick‐and‐mortar strategy of shear‐induced orientation followed by hot pressing, where SEBS/POE dual physical crosslinking network and ordered graphite nanoplatelets enhance thermal conductivity, recyclability, and ...
Yuhao Feng, Yang Li, Xiao Chen
wiley   +1 more source

Extruded blend films of poly(vinyl alcohol) and polyolefins: common and hard-elastic nanostructure evolution in the polyolefin during straining as monitored by SAXS

Science and Technology of Advanced Materials, 2013
Straining of PVA/PE and PVA/PP blends (70:30) is monitored by small-angle x-ray scattering (SAXS). Sheet-extruded films with different predraw ratio are investigated.
Norbert Stribeck, Ahmad Zeinolebadi, Stoyko Fakirov, Debes Bhattacharyya and Stephan Botta
doaj   +1 more source