Al–Cu–Fe quasicrystal/ultra-high molecular weight polyethylene composites as biomaterials for acetabular cup prosthetics

Thermal, Mechanical and Rheological Behaviors of Nanocomposites Based on UHMWPE/Paraffin Oil/Carbon Nanofiller Obtained by Using Different Dispersion Techniques

“…Due to the extremely high viscosity of UHMWPE, CNF filler forms agglomerates during the mixing process with the polymeric matrix [9]. This often lead to very poor dispersion of the filler that negatively affects the final properties of the composite materials [10,11].…”

Processing of hydroxyapatite reinforced ultrahigh molecular weight polyethylene for biomedical applications

“…The use of UHMWPE as a composite matrix has been explored with various fillers, such as carbon (carbon black [14], carbon fiber [15], carbon nanotube [16], graphite [15]), ceramics (kaolin [17], wollastonite [18], quartz [19], TiO 2 [20], A1 2 O 3 [21], CaCO 3 [22], etc), or metals [23], etc. Generally, methods for processing UHMWPE composites include solid-state mixing and thermal forming [14][15]18,[20][21][22][23], solution gelation and crystallization [16,19], and in situ polymerization [17].…”

“…Generally, methods for processing UHMWPE composites include solid-state mixing and thermal forming [14][15]18,[20][21][22][23], solution gelation and crystallization [16,19], and in situ polymerization [17]. Solid-state mixing and thermal forming process is easy to be performed but the filler/matrix interfacial strength is poor because only interaction between the filler and the matrix is mechanical interlocking, even though chemical surface treatment is employed [15,18,[21][22].…”

The recent progress of tribological biomaterials

“…It is well known that cross-linked UHMWPE has lower wear but the mechanical strength also decreases after irradiation. Introducing quasicrystal into UHMWPE can enhance the wear resistance ability and does not decrease the mechanical strength [158,159]. UHMWPE modified with Schiff base copper complex (Cu (II) chelate of bis (salicylaldehyde) ethylenediamine) and a glycerol-polyethylene microencapsule has lower friction coefficient because of the transfer film of copper on counterface as a result of the self-selective transfer effect [160].…”