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Nanocomposites Prepared by Reactive Extrusion: Effect of the Polymer Reactive Groups
Macromolecular Reaction Engineering, 2013AbstractThe interest in the development of polymer nanocomposites by reactive extrusion has been growing in the past years. This work aims to investigate the effect of the polymer reactive groups on chemical reaction extension and consequently, on the morphology of the nanocomposites. For that, two polymers, polypropylene grafted with maleic anhydride (
Oliveira, Manuel, Machado, A. V.
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Intensification of Polymerization Processes by Reactive Extrusion
, 2021The unique geometry of screw extruders allows handling very viscous media; thus, they can be used as continuous reactors to conduct polymerization reactions without using any solvents.
Tianjun Li +5 more
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Reactive extrusion of polystyrene/polyethylene blends
Polymer Engineering & Science, 1988AbstractThe feasibility of inducing beneficial changes to polystyrene/polyethylene (PS/PE) blends via reactive extrusion processes is considered. Experiments have been conducted on 50:50 wt.% PS/PE blends that were treated with different levels of dicumyl peroxide and triallyl isocyanurate coupling agent.
Peter van Ballegooie, Alfred Rudin
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Ram extrusion of reactive plastics
Russian Engineering Research, 2013A system is proposed for the processing of highly filled thermosetting material. That system permits orientation of the fibrous filler over the length and cross section of the part. A wood-based thermosetting composite for the production of high-strength shaped components is also considered.
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Reactive extrusion of polyolefin ternary blends
Journal of Applied Polymer Science, 1996Reactive extrusion of polypropylene (PP)/ethylene-propylene-diene terpolymer (EPDM)/high-density polyethylene (PE) (80/10/10 by weight) blends were carried out using a corotating twin-screw extruder. The effects of peroxide and coagent concentrations and extruder rpm were studied in terms of rheological, morphological, thermal, and mechanical ...
Byung Kyu Kim, Chi Hoon Choi
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Combined reactive extrusion–orientation of polyethylene
Polymer Engineering & Science, 1993AbstractThe objective of this work is to combine reaction, extrusion, and orientation together in a process so as to provide product in a form which is not limited to fiber or film. Three coupled problems form the focus of the work: (i) devising a practical, continuous extrusion‐orientation method; (ii) generating low concentrations of free radicals in
D. Suwanda, S. T. Balke
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Polypropylene degradation control during reactive extrusion
Journal of Applied Polymer Science, 2004AbstractIn this work, a proportional‐integral‐derivative (PID) control scheme with two different tuning methods to control the degree of degradation of polypropylene (PP) during reactive extrusion is proposed. The concentration of dicumyl peroxide is taken as the manipulated variable.
Sheng‐Hong Pong +3 more
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Maleated thermoplastic starch by reactive extrusion
Carbohydrate Polymers, 2008Novel maleated thermoplastic starch (MTPS) with both improved processing and reactivity useful in the melt-blending with biodegradable polyester was prepared through in situ reactive modification of thermoplastic starch (TPS) with maleic anhydride (MA) as esterification agent. Glycerol was used as plasticizer.
Jean-Marie Raquez +5 more
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Reactive extrusion of zein with glyoxal
Journal of Applied Polymer Science, 2009AbstractCross‐linked zein has been produced using glyoxal (GLY) as the cross‐linking reagent via reactive extrusion for the first time in a twin screw extruder using dilute sodium hydroxide as catalyst. Tri(ethylene glycol) was used as a plasticizer for various items.
Gordon W. Selling +3 more
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