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Showing 1 to 8 of 8 for “"Shear rheometry"”.
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Application of Hansen Solubility Parameters and Thermomechanical Techniques to the Prediction of Miscibility of Amorphous Solid Dispersion. Investigating the role of cohesive energy and free volume to predict phase separation kinetics in hot-melt extruded amorphous solid dispersion using dynamic mechanical analyser, shear rheometer and solubility parameters data
… 1. Moreover, Dynamic Mechanical Analyser and shear rheometry data were shown to be more sensitive than Differential Scanning Calorimetry, Powder X-Ray Diffraction, Scanning Electron Microscope and Fourier Transform Infrared in detecting crystallisation and the interaction between the drug and …
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Rheological characterization of lubricants in automotive industries through development of a novel capillary breakup extensional rheometer
… viscosity index (1OW-30) appearing identical in shear flow, as well as having similar surface tensions are selected. Capillary thinning measurements show that these fluids can be differentiated by the onset of strain-rate-thickening close to breakup, corresponding to the dimensionless Weissenberg …
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Development of a long-term durability specification for polymer modified asphalt
… from oxidation were analyzed using dynamic shear rheometry, ductility, and force ductility. Previous literature reports using size exclusion chromatography showed that degradation of the molecular weight profile of SBS accompanied the loss of PMA ductility. Yet base binder embrittlement also …
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Microrheology and microstructure of poly(vinyl alcohol)-based physical gels
… the bulk properties measured using conventional shear rheometry, and correlate the rheological properties to the structure of the materials. We develop a new technique for investigating the viscoelastic properties of soft materials using the atomic force microscope. The electronic feedback of an …
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From interfacial nanostructures to advanced constructs: harnessing surfactant self-assembly at liquid interfaces
… mechanical properties are evaluated through shear rheometry. Compared to other soft materials explored for LL3DP, bijel-based prints offer unique advantages, including interconnected hydrophobic and hydrophilic domains confined within defined geometries, along with tunable structural and …
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Rheological Considerations for Dual-Extrusion Melt Processing of Dissimilar Polymers in Composite Structures
… is processed up to 350°C. Dynamic oscillatory shear rheometry was used to study 0, 25, 40, 50, 60, and 75wt% UHMW PEO in LMW PEO to take advantage of the sensitivity of viscosity to changes in molecular weight and material configuration, indicating degradation. Samples were exposed to 220, 230, …
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Effect of Process Parameters and Material Attributes on Crystallisation of Pharmaceutical Polymeric Systems in Injection Moulding Process. Thermal, rheological and morphological study of binary blends polyethylene oxide of three grades; 20K, 200K and 2M crystallised under various thermal and mechanical conditions using injection moulding
… (TGA), powder X-ray diffraction (PXRD) and shear rheometry. The onset of degradation and the rate varied according to molecular weight of polyethylene oxide (PEO). The peak melting temperature and the difference in enthalpy between melting and crystallisation were both in a direct proportion …
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Evaluation of the critical parameters and polymeric coat performance in compressed multiparticulate systems
… Mechanical Analysis (DMA) and Parallel Plate Shear Rheometer (PPSR) were used to study the influence of the level and type of plasticisers incorporated in coating film formulation on the performance of the coating film. In this study, both DSC and DMA were used to investigate the Tg for each …