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Ultra-high-molecular-weight polyethylene. Ultra-high-molecular-weight polyethylene ( UHMWPE, UHMW) is a subset of the thermoplastic polyethylene. Also known as high-modulus polyethylene ( HMPE ), it has extremely long chains, with a molecular mass usually between 3.5 and 7.5 million amu. [1] The longer chain serves to transfer load more ...
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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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.
- Muzamil Hussain, Rizwan Ali Naqvi, Naseem Abbas, Shahzad Masood Khan, Saad Nawaz, Arif Hussain, Nida...
- 10.3390/polym12020323
- 2020
- Polymers (Basel). 2020 Feb; 12(2): 323.
Dec 12, 2017 · Owing to a number of unique properties including wear resistance, resistance to stress cracking, notched impact strength, and ultralow embrittlement temperature, ultrahigh molecular weight polyethylene (UHMWPE), an intractable linear polyethylene resin with a molecular weight greater than 1 million g/mol [], has been recognized as a key engineering thermoplastic, demonstrating a variety of ...
- Changlin Cao, Xiaochuan Chen, Xiaochuan Chen, Junxia Wang, Yu Lin, Yiyou Guo, Qingrong Qian, Qinghua...
- 2018
Ultra-high-molecular-weight polyethylene (UHMWPE) plays an important role in many important fields as engineering plastics. In this contribution, a precipitation polymerization strategy is developed by combination of highly active phosphino-phenolate nickel catalysts with polymer-insoluble solvent (heptane) to access UHMWPE (Mn up to 8.3 × 106 g mol–1) with good product morphology, free ...
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 ...
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 ...
