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Polymeric dielectric composites with high thermal conductivity have played an important role in modern society because of their significant applications in the fields of sensing and energy storage. The combination of the use of various dimensions fillers and surface modification to prepare high thermal conductivity and high dielectric permittivity composite materials has attracted great attention...
Polymer extrusion is one of the final forming stages in the production of many polymeric products in a variety of applications. It is also an intermediate processing step in injection moulded, blown film, thermo-formed, and blow moulded products. However, polymer extrusion is a complex process which is difficult to set up, monitor, and control. As a consequence, high levels of off- specification products...
Melt pressure is one of the most important process parameters in polymer extrusion and it is also closely related to the product quality. However, it is not directly controllable and is affected in a complex manner by changing other process operating conditions such as screw rotation speed and set temperatures. The ability to predict such parameter would be a powerful tool to aid process design and...
Laboratory capillary rheometer and side-stream rheometer for melt viscosity measurement in polymer extrusion have shown to be unsuitable for real-time monitoring and control, due to their measurement delay. Existing in-line rheometer designs disturb the melt flow or restrict throughput, limiting their industrial application. In this paper, a novel soft-sensor approach is proposed, aiming to tackle...
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