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Reactive compatibilizer-tracer: a powerful tool for designing, scaling up and optimizing reactive blending processes

Abstract : A concept of reactive compatibilizer-tracer is developed to study reactive polymer blending processes in a twin screw extruder. It is summarized as follows. Fluorescent moieties such as anthracene are attached to a reactive compatibilizer so that the latter can be served both as a compatibilizer and a tracer. When evaluating its compatibilizing efficiency for a polymer blending system, unlike the polymer components of the blend which are continuously fed to the extruder, the reactive compatibilizer-tracer is added as a pulse. The concentration of the reactive compatibilizer-tracer in the polymer blend at the die exit is measured, in-line and in real time, using probes capable of detecting the signal of the emission of fluorescent moieties of the reactive compatibilizer-tracer. In the meantime, the corresponding size of the dispersed phase domains of the blend is determined off-line. These two pieces of information allow assessing the compatibilizing efficiency of a reactive compatibilizer in a much easier manner and using a much smaller amount of compatibilizer. Consequently, the concept of reactive compatibilizer-tracer can help select most appropriate compatibilizers under real industrial polymer blending conditions as well as scaling up and/or optimizing them.
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https://hal.univ-lorraine.fr/hal-01270990
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Submitted on : Monday, February 8, 2016 - 4:46:19 PM
Last modification on : Monday, March 29, 2021 - 4:06:41 PM

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Wei-Yun Ji, Lian-Fang Feng, Cai-Liang Zhang, Guo-Hua Hu. Reactive compatibilizer-tracer: a powerful tool for designing, scaling up and optimizing reactive blending processes. PROCEEDINGS OF PPS-30: THE 30TH INTERNATIONAL CONFERENCE OF THE POLYMER PROCESSING SOCIETY, 2015, Cleveland, United States. ⟨10.1063/1.4918467⟩. ⟨hal-01270990⟩

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