PPS 20 - Polymer Processing Society Annual Meeting

Hage, Elias

doi:10.1590/s0104-14282004000300006

Search citation statements

Order By: Relevance

Paper Sections

Select...

Online Rtd1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2004

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Also, data on local mean residence times are important for modelling chemical reactions. Several online measurement techniques are currently available (the sensors being usually located between the barrel and the die), namely those based on ultrasound attenuation 22,23 and on light, 24,25 ultraviolet 26,27 or infrared 27,28 absorption. However, the direct determination of partial RTDs, i.e.…”

Section: Online Rtdmentioning

confidence: 99%

Online monitoring techniques for studying evolution of physical, rheological and chemical effects along the extruder

Covas¹,

Carneiro²,

Machado³

et al. 2004

Plastics, Rubber and Composites

View full text Add to dashboard Cite

During extrusion and/or compounding, polymeric systems may be subjected to a complex thermo-mechanical-chemical environment, therefore monitoring the evolution of physical, rheological and chemical effects along the extruder is an important tool assisting process understanding and optimisation. Online monitoring concepts that allow sample collection, rheology measurements and RTD characterisation at specific locations along the screw axis of an extruder are presented. Each practical set-up is presented, its operation is described and the results obtained are validated experimentally. Finally, examples of the use of the tools developed for the study of specific polymer systems are presented and discussed.

show abstract