[HTML][HTML] Sensing technologies for process monitoring in polymer extrusion: A comprehensive review on past, present and future aspects

C Abeykoon - Measurement: Sensors, 2022 - Elsevier
… would also be measured in some processes via in-line or off-line … process functionality,
for achieving better process control performance and also for ensuring the safety of the process

In situ characterization of material extrusion printing by near-infrared spectroscopy

E Linde, MC Celina, LN Appelhans, DJ Roach… - Additive …, 2023 - Elsevier
… quality and filler loading in the polymer melt during extrusion [63], [… control over volumetric
rates of material extrusion. We present an in-line NIR FTIR transmission cell for in situ process

In-line near-infrared spectroscopy for measuring the composition, compositional fluctuation and mixedness of polymer blends in a twin screw extruder

TT Li, LF Feng, XP Gu, R Hreiz, CL Zhang… - Chemical Engineering …, 2024 - Elsevier
… This indicates that the extrusion process of the PS and POE is relatively stable and that …
In-line near infrared monitoring of esterification of a molten ethylene-vinyl alcohol copolymer in a …

In-Line Monitoring of the Physical Blowing Agent Concentration by Transmission Near-Infrared Spectroscopy with High-Pressure Resistance Fiber Optic Probes for …

I Yoshikawa, S Hosoe, Y Hikima, M Watari… - Industrial & …, 2023 - ACS Publications
NIR spectroscopy to monitor extrusion processes, research regarding in-line NIR measurements
for injection molding processes … of NIR spectroscopy to polymer processing processes, …

In-Line Chemical Composition Monitoring for the Injection Molding Process of Biodegradable Polymer Blends Using Simultaneous Measurement of Near-Infrared …

I Yoshikawa, Y Hikima, M Ohshima - Applied Spectroscopy, 2024 - journals.sagepub.com
in-line compositional analysis in extrusion processes for the stable continuous production of
sheets and films. In particular, NIR spectroscopy… ratio from the in-line measured NIR spectra. …

In-Line Near-Infrared Spectral Monitoring of Dissolved Nitrogen in Molten Polymers during Foam Injection Molding

I Yoshikawa, Y Hikima, M Ohshima - Industrial & Engineering …, 2024 - ACS Publications
… inline near-infrared (NIR) spectroscopic sensor to monitor the concentrations of blowing agents
dissolved in the polymers during the process. … and extrusion, include molten polymers at …

Inline characterization of dispersion uniformity evolution during a twin‐screw blending extrusion based on nearinfrared spectroscopy

Z He, F Zhang, Y Lei, Z Lin, M Wang… - Polymer Engineering & …, 2020 - Wiley Online Library
process, resulting in hysteretic feedback. Aiming at this problem, this work utilized near-infrared
(NIR) spectroscopy to in-line … transmission NIR probes at the extruder die and monitored

[HTML][HTML] Machine learning for process monitoring and control of hot-melt extrusion: current state of the art and future directions

N Munir, M Nugent, D Whitaker, M McAfee - Pharmaceutics, 2021 - mdpi.com
… analysis applied to in-line NIR spectra at the same … in-line slit die rheometer was used to
record the in-line shear viscosity. Due to the non-linear nature of the polymer extrusion process, …

[HTML][HTML] … of an in-line API quantification method using AQbD principles based on UV-vis spectroscopy to monitor and optimise continuous hot melt extrusion process

J Almeida, M Bezerra, D Markl, A Berghaus, P Borman… - Pharmaceutics, 2020 - mdpi.com
… and NIR spectra as reported in [30,31,32,33,35,42]. The methodology to build predictive
models using in-line UV-Vis spectra can be widely applied to other APIs and polymers during …

In-line monitoring of solid dispersion preparation in small scale extrusion based on UV–vis spectroscopy

J Winck, M Daalmann, A Berghaus… - Pharmaceutical …, 2022 - Taylor & Francis
… The presence of remaining drug crystals in the carrier polymer after the extrusion process
in-line UV–vis method. Implementation of inline UV–vis measuring in small scale extrusion