UHMWPE/HDPE

Xue et al. (16) prepared UHMWPE-HDPE and UHMWPE-HDPE-CNT blends by mixing the melt in a kneader and then hot pressing into plates. The addition of HDPE reduced the melt viscosity of... 

Xue et al. (16) observed that the wear rate of the UHMWPE/HDPE blend can be significantly reduced by adding CNTs, which can be correlated with an increase of the Young s modulus. The addition of 0.5 wt% CNTs to the UHMWPE/HDPE blend caused about 50% reduction of the wear rate, which is shown in Table 5.7. Besides, the composites reinforced with untreated CNTs had a better wear performance than the composites with pre-treated CNTs and the graphical... 

Table 5.6. Modulus and strength of UHMWPE/HDPE + CNFs, Sui et al. (54)...

The force loop for untreated samples are shown in Figure 26.14. The force loops for TMS plasma-treated and (TMS O2) plasma-treated surfaces are shown in Figure 26.15. Any sign of deviation from the parallelogram force loop is an indication of surface dynamic instability. Plasma polymerization coating of (TMS O2) seems to cause some degree of surface dynamical instability depending on the nature of substrate polymer, e.g., PTFE, UHMWPE, HDPE, and PMMA. 

The ability to homogenize resins with widely different molecular weight can be exemplified by UHMWPE/HDPE blends. Addition of high MW polymer is expected to increase G , G , T), and the first normal stress coefficient, Pj. For the linear polymers, these parameters at... 

UHMWPE HDPE Lower molar mass (HDPE) to moderate the properties of ultrahigh molar mass PE for processing and flexibihty... 

Y. Xue, W. Wu, O. Jacobs, and B. Schadel, Tribological behaviour of UHMWPE/HDPE blends reinforced with multi-wall carbon nanotubes. Polymer Testing, 25 (2), 221-229,2006. 

PA-6/UHMWPE/ HDPE-g-MA Brabender mixer/mechanical and tribological properties/FTIR Wang et al. 2007b... 

The ability to homogenize resins with widely different molecular weight can be exemplified by UHMWPE/HDPE blends. Addition of high MW polymer is expected to increase G, G", t, and the first normal stress coefficient, Pj. For the linear polymers, these parameters at low deformation rates, rjo and Pjo, are proportional to M , and Mw , respectively. Thus, the elasticity is more sensitive to the high MW fractions. For this reason, the frequency dependence of the storage modulus ratio G (blend)/G (PE), at 200 °C, for HOPE and its blends with 3 wt% UHMWPE was measured. The blends prepared in TSE had the worst... 

Sui G, Zhong WH, Ren X (2009) Stracture, mechanical properties and friction behavior of UHMWPE/HDPE/carbon nanofibers. Mater Chem Phys 115(1) 404—412... 

PA6 UHMWPE HDPE-g-MA Improved dispersion, strength and toughness observed with HDPE-g-MA addition to ultrahigh molecular weight polyethylene (UHMWPE)/PA6 blends 137... 

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