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Feb 4, 2020 · Ultra-High Molecular Weight Polyethylene (UHMWPE) is used in biomedical applications due to its high wear-resistance, ductility, and biocompatibility. A great deal of research in recent decades has focused on further improving its mechanical and tribological performances in order to provide durable implants in patients.
- Table 1
Average properties of Ultra-High Molecular Weight...
- Effect of Crosslink Density on The High Pressure Crystallization of Uhmwpe
Introduction. Ultra-high molecular weight (UHMWPE) is the...
- PMC Free Article
1.2: Introduction. Chemical inertness, high impact strength,...
- Table 1
Oct 1, 2020 · As stated by ASTM, “ultrahigh molecular weight polyethylene can be defined as linear polyethylene with viscosity average molecular weight (Mv) larger than 3 million g/mol” [20], [21]. The PE chains are several orders of magnitude longer than those of simple HDPE, typically, 100,000 to 250,000 monomer units per chain as compared 700 to 1800 ...
- Ketan Patel, Ketan Patel, Samir H. Chikkali, Samir H. Chikkali, Swaminathan Sivaram, Swaminathan Siv...
- 2020
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IPX 2000 Ultra-high-molecular-weight polyethylene ( IPX 2000, IPX UHMW, IPX UHMW-PE, IPX-UHMW-PE) is an engineered polyethylene compound developed to maintain many traits of UHMW, while increasing abrasion resistance, UV stability and decreasing friction and thermal expansion. [1] IPX UHMW was developed in the early 2000s by material scientists ...
- Materials
- Preparation
- Characterization
UHMWPE under the trade name of 2040 with the Mη value of 3.00 × 106g/mol was obtained from Shanghai Lianle Chemical Industry Science and Technology Co., Ltd.
A novel polymer processing equipment known as the ERE, developed by South China university of technology, was employed in this study . The UHMWPE samples were processed via the ERE at a rotation speed of 15 rpm. The processing temperatures were set as 180, 200, 220 and 240 °C respectively. The molten samples were photographed and then placed in a s...
The Mη value of the samples was deduced from viscosity measurements using an Ubbelohde viscometer according to ASTM D4020–2005. The molecular weight (Margolies calculation) is approximated using the Mark-Houwink equation Mη = 5.37 × 104(IV)1.49, where IV represents intrinsic viscosity. The DSC analyses for the samples were performed on a TA Instrum...
- Changlin Cao, Xiaochuan Chen, Xiaochuan Chen, Junxia Wang, Yu Lin, Yiyou Guo, Qingrong Qian, Qinghua...
- 2018
Dec 22, 2015 · Ultrahigh molecular weight polyethylene (UHMWPE), also known as high-modulus polyethylene (HMPE), is a subset of the thermoplastic polyethylene. Polyethylene is a polymer formed from ethylene (C 2 H 4 ), which is a gas having a molecular weight of 28 g/mol. The generic chemical formula for polyethylene is – (C 2 H 4 ) n –, where n is the ...
- sherazi@ciit.net.pk
Sep 1, 2020 · Three grades of polyethylene, with weight-average relative molar masses, M ‾ W ${\\bar{M}}_{\\text{W}}$ , 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. Specimens cut from these mouldings were subjected to a ...
Ultrahigh-molecular-weight polyethylene (UHMWPE) in joint replacement. F-W SHEN, in Biomedical Polymers, 2007. 6.1 Introduction. Ultrahigh-molecular-weight polyethylene (UHMWPE) has been the material of choice for the polymeric component in total joint replacements primarily because of its excellent combination of wear resistance, structural strength and biocompatibility and remains the gold ...
