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- Ultrahigh-Molecular-Weight Polyethylene UHMWPE is a linear polyolefin with a repeating unit of − CH 2 CH 2 −. Medical-grade UHMWPE has long chains with a molecular mass of 2 × 10 6 –6 × 10 6 g mol − 1 and is a semicrystalline polymer with a set of ordered regions embedded in a disordered amorphous phase (Turell and Bellare, 2004).
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Oct 1, 2020 · This review provides a comprehensive source of information and understanding of the multifaceted aspects of UHMWPE with specific reference to chemistry, catalysis, processes for manufacturing, and an analysis of catalyst structure-polymer property relationships.
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- Study of The Effect of The Nature of Catalyst Systems on The Molecular Structure and Properties of Ultra-High Molecular Weight Polyethylene
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Sep 1, 2020 · Abstract. Three grades of polyethylene, with weight-average relative molar masses, ¯¯¯ ¯M W M ‾ W , of approximately 0.6 × 10 6, 5 × 10 6, and 9 × 10 6, were supplied as compression mouldings by a leading manufacturer of ultra-high molecular weight polyethylene (UHMWPE). They were code-named PE06, PE5, and PE9, respectively.
Ultra-high molecular weight polyethylene (UHMWPE) has extremely high abrasion resistance when compared with other thermoplastics. It also has exceptional impact resistance, even at cryogenic temperatures, and is superior to stainless steel.
1. Citations. - LEARN ABOUT THESE METRICS. Add to. Export RIS. PDF (4 MB) Get e-Alerts. Supporting Info (1) » Supporting Information. SUBJECTS: Catalysts, Hydrocarbons, Nickel, Polyethylene, Precipitation. Abstract. Ultra-high-molecular-weight polyethylene (UHMWPE) plays an important role in many important fields as engineering plastics.
Ultra High Molecular Weight Polyethylene UHMWPE is a semi-crystalline, two-phase viscoplastic solid composed of an amorphous matrix responsible for the resistance to mechanical deformations, embedding crystalline domains (Renò and Cannas, 2006).
Feb 4, 2020 · Hussain M, Naqvi RA, Abbas N, Khan SM, Nawaz S, Hussain A, Zahra N, Khalid MW. Ultra-High-Molecular-Weight-Polyethylene (UHMWPE) as a Promising Polymer Material for Biomedical Applications: A Concise Review. Polymers. 2020; 12(2):323. https://doi.org/10.3390/polym12020323 Chicago/Turabian Style
Sep 1, 2020 · In this context, the term ‘ultra-high’ indicates a weight average relative molar mass, ˉM w, greater than 10 6. In practice, the minimum ˉM w for orthopaedic grades of polyethylene (PE) is about 5 × 10 6, which for linear PE means that chains have a contour length of at least 45 μm.
