Structure and Properties of Polymer–Polymer Composites Based on Biopolymers and Ultra-High Molecular Weight Polyethylene Obtained via Ethylene In Situ Polymerization

2018 ◽  
Vol 27 (1) ◽  
pp. 165-175 ◽  
Author(s):  
E. M. Khar’kova ◽  
D. I. Mendeleev ◽  
M. A. Guseva ◽  
V. A. Gerasin
Keyword(s):  
Molecular Weight ◽  
Polymer Composites ◽  
High Molecular Weight ◽  
In Situ Polymerization ◽  
Structure And Properties ◽  
Ultra High Molecular Weight

scholarly journals Achieving Good Protection on Ultra-High Molecular Weight Polythene by In Situ Growth of Amorphous Carbon Film

Coatings ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 584
Author(s):  
Rui Dang ◽  
Liqiu Ma ◽  
Shengguo Zhou ◽  
Deng Pan ◽  
Bin Xia
Keyword(s):  
Molecular Weight ◽  
Epitaxial Growth ◽  
High Molecular Weight ◽  
Amorphous Carbon ◽  
Transition Layer ◽  
In Situ Growth ◽  
Good Protection ◽  
Ultra High Molecular Weight ◽  
Carbon Plasma

Ultra-high molecular weight polythene (UHMWPE), with outstanding characteristics, is widely applied in modern industry, while it is also severely limited by its inherent shortcomings, which include low hardness, poor wear resistance, and easy wear. Implementation of feasible protection on ultra-high molecular weight polythene to overcome its shortcomings would be of significance. In the present study, amorphous carbon (a-C) film was fabricated on ultra-high molecular weight polythene (UHMWPE) to provide good protection, and the relevant growth mechanism of a-C film was revealed by controlling carbon plasma currents. The results showed the in situ transition layer, in the form of chemical bonds, was formed between the UHMWPE substrate and the a-C film with the introduction of carbon plasma, which provided strong adhesion, and then the a-C film continued epitaxial growth on the in situ transition layer with the treatment of carbon plasma. This in situ growth of a-C film, including the in situ transition layer and the epitaxial growth layer, significantly improved the wetting properties, mechanical properties, and tribological properties of UHMWPE. In particular, good protection by in situ growth a-C film on UHMWPE was achieved during sliding wear.

Wear behavior of in situ polymerized carbon nanotube/ultra high molecular weight polyethylene composites

2013 ◽  
Vol 21 (9) ◽  
pp. 965-970 ◽  
Author(s):  
Hong-Jo Park ◽  
Jihun Kim ◽  
Yongsok Seo ◽  
Junho Shim ◽  
Moon-Yong Sung ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Carbon Nanotube ◽  
High Molecular Weight ◽  
Wear Behavior ◽  
Ultra High Molecular Weight ◽  
Polyethylene Composites

Self-assembly behavior of ultra-high molecular weight in-situ anionically synthesized polymer matrix composite materials “grafted from” single- or multi-wall CNTs

Polymer ◽  
2021 ◽  
Vol 235 ◽  
pp. 124243
Author(s):  
Evangelos Kasapis ◽  
Konstantina Tsitoni ◽  
Gkreti-Maria Manesi ◽  
Ioannis Moutsios ◽  
Dimitrios Moschovas ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Composite Materials ◽  
High Molecular Weight ◽  
Matrix Composite ◽  
Polymer Matrix ◽  
Self Assembly ◽  
Polymer Matrix Composite ◽  
Assembly Behavior ◽  
Ultra High Molecular Weight

scholarly journals Cross-linked ultra-high-molecular-weight polyethylene prepared by silane-induced cross-linking under in situ development of water

2018 ◽  
Vol 37 (8) ◽  
pp. 2859-2865 ◽  
Author(s):  
Qiuying Li ◽  
Tenghui Chen ◽  
Lewen Sun ◽  
Weihong Guo ◽  
Chifei Wu
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Cross Linking ◽  
Ultra High Molecular Weight

scholarly journals Particle morphology, structure and properties of nascent ultra-high molecular weight polyethylene

2020 ◽  
Vol 7 (8) ◽  
pp. 200663
Author(s):  
Wenyang Zhang ◽  
Zhengwen Wu ◽  
Hanjun Mao ◽  
Xinwei Wang ◽  
Jianlong Li ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Particle Size ◽  
High Molecular Weight ◽  
Liquid Paraffin ◽  
Particle Morphology ◽  
Particle Growth ◽  
Structure And Properties ◽  
Uhmwpe Particle ◽  
Ultra High Molecular Weight ◽  
Polymerization Method

The effects of particle morphology on the structure and swelling/dissolution and rheological properties of nascent ultra-high molecular weight polyethylene (UHMWPE) in liquid paraffin (LP) were elaborately explored in this article. Nascent UHMWPE with different particle morphologies was prepared via pre-polymerization technique and direct polymerization. The melting temperature and crystallinity of UHMWPE resins with different particle morphologies were compared, and a schematic diagram was proposed to illustrate the mechanism of UHMWPE particle growth synthesized by pre-polymerization method and direct polymerization. The polymer globules in the nascent UHMWPE prepared by using pre-polymerization technique are densely packed and a positive correlation between the particle size and the viscosity-averaged molecular weight can be observed. The split phenomenon of particles and the fluctuation in the viscosity of UHMWPE/LP system prepared by direct polymerization can be observed at a low heating rate and there is no correlation between particle size and viscosity-averaged molecular weight.

Epoxy (SU-8) polymer composites with Ultra-high molecular weight polyethylene and Hyaluronic acid fillers for hip prosthetic implant application

2021 ◽  
pp. 107399
Author(s):  
Jaswant K Hirwani ◽  
Ryusei Nishimura ◽  
Hironori Shinmori ◽  
Takehiro Morita ◽  
Yoshinori Sawae ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Hyaluronic Acid ◽  
Polymer Composites ◽  
High Molecular Weight ◽  
Prosthetic Implant ◽  
Ultra High Molecular Weight
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