Simple Rheological Analysis Method of Spinnable-Polymer Flow Properties Using MFI Tester

Abstract

Rheological characterization of polymers explains the flow behaviour and viscoelastic properties and tests fibre-forming ability. The current method investigates the viscoelastic properties and morphology of polymers and finds the rheological data and the right polymer viscosity, which is determining the best processing temperature. The right processing temperature saves the power, the material, and the time needed for production. After calculating polymers viscosity by using MFI tester, the method investigates rheological properties and surface shape at different temperatures and loads. The method could apply to other polymers to find the viscosity-temperature change and to set the best processing temperature.

Preparing epoxidized vegetable oil from waste generated by the kapok fiber industry and assessing its thermal stabilization effect as a co-stabilizer for polyvinyl chloride

“…Both actions result in increased molecular weight, leading to higher viscosity and reduced flowability. As stated in the literature [ 81 , 82 ], MFI is inversely proportional to the molecular weight, meaning that the higher the molecular weight, the lower the MFI, and vice versa.…”

Characterization, Modeling and the Production Processes of Biopolymers in the Textiles Industry

“…The study describes the melt spinning of aromatic-aliphatic co-polyester depending on the extrusion thermal profile effect on asspun fiber properties. The molten material flowed easily when the viscosity decreased and smoother extrudates were obtained at shear rates greater than 4.5 s-1 [120].…”

Novel Approach for Forecasting and Assessing the Relationship Between the Environment Friendly Fibres Production Process and Fibres Properties

“…Inclusion and/or incorporation of aromatic monomer groups in the aliphatic polyesters' main chain can potentially enhance their mechanical properties [16]. Development of biodegradable aliphatic-aromatic co-polyesters began with the study of different modes of degradation [11,12], and it had been characterized [34]. The randomness and the length of the polymer chains aid in understanding the biodegradation behavior for aliphatic-aromatic co-polyesters [35].…”

“…Some researches based on statistical analysis, mathematical simulation and modeling of the processes of fiber formation had been done [38][39][40][41][42][43][44][45][46][47]. Different samples of as-spun linear aliphatic-aromatic co-polyesters were optimized and fibres properties were modelled [34].…”