Transient Entanglement Disentanglement Kinetics in Deep Draw Thermoforming under Multiaxial Strain Gradients
Matching plug speed to polymer disentanglement kinetics prevents corner thinning and optimizes wall thickness in deep draw thermoforming.
Optimizing Thermoforming Process Windows Using Strain Hardening Rheology Metrics
Strain hardening rheology metrics define thermoforming process windows by predicting extensional melt strength to eliminate corner thinning and sheet sag.
Establishing Rheological Dispersity Limits to Prevent Strain Hardening Failure in Regrind Blends
Establishing Trouton ratio floors via capillary extensional rheology prevents catastrophic web tear and parison sag in regrind polyolefin blends.
Predicting Local Thermal Softening and Adiabatic Shear Banding during High Velocity Preform Inflation
Predicting adiabatic shear banding during high-velocity preform inflation requires coupled thermomechanical models evaluating strain hardening against rate-dependent thermal dissipation.
Rheological Determination of Ultra High Molecular Weight Tails in Bimodal Resins
Low-frequency storage modulus and creep recovery accurately quantify ultra-high molecular weight tails in bimodal resins, ensuring stress crack resistance.
Analytical Testing Methods for Quantifying Recycled Content in Polyolefin Compounds
Accurate quantification of recycled polyolefins requires combining DSC thermal integration, high-temperature GPC, ICP-MS trace metals, and melt rheology sweeps.