Structural Defects Generated upon Two-Stage Solid-State Coextrusion Drawing of Ultrahigh Molecular Weight Polyethylene Reactor Powder.

Drawing Behavior of Ultrahigh Molecular Weight Polyethylene (uhmwpe) Fibers in Supercritical C02

Solid-state 1H-NMR relaxation behavior for ultra-high-molecular-weight polyethylene reactor powders with different morphologies

The relaxation behaviors of several commercial ultra-high-molecular-weight polyethylene (UHMW-PE) reactor powders were compared. The surface and internal morphologies of these powders were characterized by scanning and transmission electron microscopy observations. On the basis of these morphological analyses, the reactor powder consisted of particles and fibrils between them, the relative amou...

Unsteady-State Modeling of the Fluidized Bed Polyethylene Reactor

Ultrahigh strength polyethylene filaments by solution spinning/drawing. 3. Influence of drawing temperature

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Synthesis of high molecular weight polyethylene using FI catalyst

A FI Zr-based catalyst of bis[N-(3,5-dicumylsalicylidene)-2′,6′­diisopropylanilinato]zirconium(IV) dichloride was prepared and used for polymerization of ethylene. The effects of reaction conditions on the polymerization were examined in detail. The increase in ethylene pressure and rise in polymerization temperature up to 35 oC were favorable for catalyst/MAO to raise the catalytic activity as...