Results 21 to 30 of about 28,046 (290)

The Efficiency Evaluation of the Reactive Extrusion Process for Polyethylene Terephthalate (PET). Monitoring of the Industrial Foil Manufacturing Process by In-Line Rheological Measurements

open access: yesApplied Sciences, 2023
The main topic of the presented work is the evaluation of the in-line viscometer (VIS) operation installed on the industrial line for polyethylene terephthalate (PET) foil production.
Piotr Szymczak   +3 more
doaj   +1 more source

Surface Modification of Cellulose from Oat Hull with Citric Acid Using Ultrasonication and Reactive Extrusion Assisted Processes

open access: yesPolysaccharides, 2021
This study aimed to produce modified cellulose extracted from oat hulls by an esterification reaction with citric acid (CA) employing ultrasonication and reactive extrusion assisted processes.
Gina Alejandra Gil Giraldo   +4 more
doaj   +1 more source

Thermo-mechanical processing of sugar beet pulp. III. Study of extruded films improvement with various plasticizers and cross-linkers [PDF]

open access: yes, 2009
Thermoplastic sugar beet pulp (thermo-mechanical processing was discussed in previous studies) was formed into film strips by extrusion. Film tensile properties are discussed according to the molecular structure of external plasticizer.
Geneau, Céline   +3 more
core   +1 more source

REACTIVE EXTRUSION OF BEAN FLOURS

open access: yes, 2023
Bean flour possesses a significant fraction of water-insoluble components that are known to limit its uses in food applications. This study aimed to determine if using specific enzymes targeting the dietary fiber of bean flour could increase solubility ...
Anael K Kimble (17684091)
core   +1 more source

On the stability of reactive extrusion [PDF]

open access: yesPolymer Engineering & Science, 1998
Abstract Interest in reactive extrusion has grown considerably during the last decade. The instabilities that may occur during polymerization in extruders can pose severe limitations on the process and on its scalability. They manifest themselves as severe fluctuations in throughput and product quality or as dual steady states, one at
openaire   +2 more sources

The Acetylation of Starch by Reactive Extrusion [PDF]

open access: yesStarch - Stärke, 1998
Potato starch has been acetylated in a counter rotating twin screw extruder using vinylacetate and sodium hydroxide. The desired starch acetylation reaction is accompanied by an undesired parallel base catalysed hydrolysis reaction of vinylacetate and a consecutive hydrolysis reaction of the acetylated starch. Also deacetylation may occur.
Graaf, Robbert A. de   +2 more
openaire   +2 more sources

Sheets of branched poly(lactic acid) obtained by one step reactive extrusion calendering process: Melt rheology analysis

open access: yeseXPRESS Polymer Letters, 2013
One-step reactive extrusion-calendering process (REX-Calendering) was used in order to obtain sheets of 1mm from two PD,L-LA extrusion grades modified with a styrene-acrylic multifunctional oligomeric agent.
J. Cailloux   +6 more
doaj   +1 more source

Investigation of the Reaction Kinetics of Poly(butylene terephthalate) and Epoxide Chain Extender

open access: yesMacromolecular Materials and Engineering, 2023
Polyesters, such as poly (butylene terephthalate) (PBT), owe a rather low melt strength, which is considered as not beneficial for foaming. To overcome this issue, a typical attempt is the incorporation of chemical modifications—so‐called chain extenders
Andreas Himmelsbach   +6 more
doaj   +1 more source

Mechanical Response of Reactive Extruded Biocomposites Based on Recycled Poly(lactic Acid) (R-PLA)/Recycled Polycarbonate (R-PC) and Cellulosic Fibers with Different Aspect Ratios

open access: yesMacromol, 2022
Coupling recycling processes with increased use of bio-derived and environmentally friendly materials, with the aim of approaching (or overcoming) the mechanical properties of petroleum-derived plastics, is a path that research is pursuing in small but ...
Vito Gigante   +3 more
doaj   +1 more source

Esters of Cinnamic Acid as Green Plasticizers for Polylactide Formulations with Improved Ductility

open access: yesMacromolecular Materials and Engineering, 2023
This study demonstrates the potential of different cinnamate esters, namely methyl trans‐cinnamate (MC), isobutyl cinnamate (IBC), allyl cinnamate (AC), and ethyl cinnamate (EC), as environmentally friendly plasticizers for polylactide (PLA). Plasticized
Alejandro Barandiaran   +6 more
doaj   +1 more source

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