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US 11,478,819 B2Granted
Method for forming a polyethylene alumina nanocomposite coating
AssigneeKing Fahd University of Petroleum and Minerals
InventorMohammed Abdul Samad
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Abstract
A method for forming a polyethylene and alumina nanocomposite coating on a substrate is described. The method may use microparticles of UHMWPE with nanoparticles of alumina to form a powder mixture, which is then applied to a heated steel substrate to form the nanocomposite coating. The nanocomposite coating may have a Vickers hardness of 10.5-12.5 HV.
Claims17
A method for forming a nanocomposite coating on a substrate, comprising:
- mixing polyethylene microparticles with alumina nanoparticles in an organic solvent to form a precursor mixture;
- heating the precursor mixture at a temperature in a range of 75-95° C. for 18-30 h to produce a nanocomposite powder;
- applying the nanocomposite powder to the substrate heated at a temperature in a range of 160-200° C. to form the nanocomposite coating,
- wherein the nanocomposite coating consists of alumina nanoparticles dispersed within a polymeric matrix,
- wherein forming the nanocomposite coating does not include silanizing, and the nanocomposite coating does not comprise any silanes, and
- wherein the nanocomposite coating comprises 7.5 wt % to 12 wt % alumina relative to a total weight of the nanocomposite coating.
3 more elements
Dependencies are inferred from the claim text.