Metal-oxide nanofiller, method for synthesising same, and use thereof in a fluorocarbon-resin non-stick coating

A nanofiller of a metal-oxide comprising at least two graft chains, at least one of the chains being hydrophilic and the other being a hydrophobic chain compatible with fluorinated polymers,

• wherein the hydrophilic chain is a derivative of polyalkylene glycol modified by:
• either an alkoxysilane,
• or a phosphonic acid or ester,
• or a phosphinic acid or ester,
• or a carboxylic acid, and
• wherein the hydrophobic chain is an oligomer, the weight-average molar mass Mw of which is between 300 and 20,000 g/mol.