Impact strength ultra high molecular weight polyethylen

Another version of PE, the ultra-high molecular weight polyethylene is used as a specialty plastic (in artificial hip, knee and shoulder joints), mainly due to its exceptional impact strength, low wear, good stress-crack resistance, durability, and excellent energy absorption characteristics. 

High-density polyethylene (HDPE)/ultra-high molecular weight polyethylene (UHMWPE) blends are possible by direct compounding, and use of UHMWPE could improve the impact strength or tensile strain of HDPE. The effect of the UHMWPE content on the mechanical properties of the HDPE/UHMWPE blends is improved by compounding due to homogenisation of the mixture [35-39]. 

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