IONIC PERFLUOROPOLYETHER LUBRICANT

摘要

An ionic lubricant includes a single lubricant compound having a perfluoropolyether main chain, wherein each end of the perfluoropolyether main chain is terminated by an end group, and at least one of the end groups includes an ionic bond and at least one functional group. The ionic perfluoropolyether lubricant has unique characteristics that allows its ultra-thin and uniform distribution over a protective overcoat layer of a magnetic recording medium, while at the same time providing its molecules with strong adhesion power to the protective overcoat layer of the magnetic recording medium compared to existing lubricants, so as to provide shorter magnetic spacing between the magnetic recording medium and the magnetic head, and enable longer operation hours for the magnetic recording medium.

主权项

1. An ionic lubricant, comprising a single lubricant compound having a perfluoropolyether main chain,
wherein each end of the perfluoropolyether main chain is terminated by an end group, and at least one of the end groups comprises an ionic bond and at least one functional group.