Characterization and corrosion resistance of ultra-high molecular weight polyethylene composite coatings reinforced with tungsten carbide particles in hydrochloric acid medium
| Autor: | Akeem Yusuf Adesina, Ahmad A. Sorour, Mohammed Abdul Samad, Muhammad Umar Azam, Muhammad Faizan Khan |
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| Rok vydání: | 2019 |
| Předmět: |
Ultra-high-molecular-weight polyethylene
Materials science Polymers and Plastics General Chemical Engineering Composite number 0211 other engineering and technologies Hydrochloric acid 02 engineering and technology 021001 nanoscience & nanotechnology Corrosion Characterization (materials science) law.invention chemistry.chemical_compound chemistry Magazine Tungsten carbide law Materials Chemistry Composite material 0210 nano-technology 021102 mining & metallurgy |
| Zdroj: | Journal of Polymer Engineering. 39:861-873 |
| ISSN: | 2191-0340 0334-6447 |
| DOI: | 10.1515/polyeng-2018-0397 |
| Popis: | Ultra-high molecular weight polyethylene (UHMWPE) composite coatings reinforced with different concentrations (1, 3, 6, and 9 wt%) of submicron tungsten carbide (WC) particles were synthesized using electrostatic sprayed method, characterized and evaluated for corrosion resistance in 1 m HCl electrolytic solution. Results showed that the mechanical properties and adhesion strength of the coatings improved with the increasing WC content to an optimum loading of 6 wt%. These properties slightly dropped when the WC content was further increased to 9 wt% due to agglomeration of the WC particles. Furthermore, both the potentiodynamic polarization test and electrochemical impedance spectroscopy measurement confirmed the high corrosion protection efficiency of the UHMWPE/WC composite coatings over the pristine UHMWPE coating to a minimum of 80% improvement. The 1 wt% WC reinforced UHMWPE coating exhibited the highest corrosion resistance due to better dispersion of the WC particles in the matrix. |
| Databáze: | OpenAIRE |
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