Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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Tribological and Mechanical Properties of UHMWPE/HDPE Composites

  • Na, Woo Seok (Department of Materials Engineering and Convergence Technology, ReCAPT, Gyeongsang National University) ;
  • Lee, Kwang Ho (Department of Materials Engineering and Convergence Technology, ReCAPT, Gyeongsang National University) ;
  • Kong, Tae Woong (Department of Materials Engineering and Convergence Technology, ReCAPT, Gyeongsang National University) ;
  • Baek, Jung Youn (Bosung Poly-tech) ;
  • Oh, Jeong Seok (Department of Materials Engineering and Convergence Technology, ReCAPT, Gyeongsang National University)
  • Received : 2018.12.13
  • Accepted : 2018.12.18
  • Published : 2018.12.31
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Abstract

The influence of reinforcing UHMWPE powder on the tribological and mechanical properties of HDPE was investigated. The circularizing of UHMWPE powder was improved by high-speed rotation to enhance particle distribution and flowability. HDPE composites reinforced with UHMWPE powder in the range of 0-50 wt% were prepared by co-rotating twin screw extrusion. The abrasion resistance, plane friction coefficient, tensile strengths, and impact strengths of the composites were investigated as a function of the UHMWPE content. An increasing UHMWPE content decreased the plane friction coefficient and increased the abrasion resistance and impact strength. It is expected that HDPE composites reinforced with spherical UHMWPE powder particles can be used to improve the durability of products such as pipes in the future.

Keywords

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Figure 1. The circularity distribution of (a) non-circularized UHMWPE powder and (b) circularized UHMWPE powder.

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Figure 2. The particle shape images of (a) non-circularized UHMWPE powder and (b) circularized UHMWPE powder.

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Figure 3. Tactile meter.

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Figure 4. The tribological properties of UHMWPE/HDPE composites as a function of UHMWPE content: (a) abrasion resistance of UHMWPE/HDPE composites and (b) plane friction coefficient of UHMWPE/HDPE composites.

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Figure 5. The mechanical properties of UHMWPE/HDPE composites as a function of UHMWPE content: (a) tensile strengths of UHMWPE/HDPE composites and (b) IZOD impact strengths of UHMWPE/HDPE composites.

Table 1. Compositions of UHMWPE/HDPE Composites

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