Features of the amorphous-crystalline structure of UHMWPE
作者： V. M. Egorov , E. M. Ivan’kova , V. B. Kulik , D. V. Lebedev , L. P. Myasnikova
DOI: 10.1134/S1811238211050018
关键词:
摘要: To reveal the features of structure UHMWPE that depend on catalytic system used for synthesis, a comparative study sets laboratory and commercial powders synthesized different catalysts in slurry process under conditions is conducted. This includes use various modern physical methods, such as transmission scanning electron microscopy, X-ray analysis, Raman scattering spectroscopy, differential calorimetry, nuclear magnetic resonance, thermoluminescence. All nascent particles are shown to have complex hierarchical structure. In all reactor powders, elementary structural unit crystalline lamellas, whose dimensions mutual orientation dependent type system. synthesis supported catalysts, character formed depends characteristics substrate. During breakdown substrate course fibrils form. The colloidal catalyst responsible more uniform lamellar powders. conformational composition segments molecules interlamellar regions characterized.
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