An object of the present invention is to provide a compound that can inactivate active alumina in a magnetic head, a lubricant having decomposition resistance, and a magnetic disk using the lubricant. The present invention relates to a fluoropolyether compound represented by formula (1):
R1-CH2-R2-CH2-R3
wherein R1 is C1-C10 alkoxy; R2 is-(CF2)pO(CF2O)x(CF2CF2O)y(CF2CF2CF2O)z(CF2CF2CF2CF2O)w(CF2)p-; x and y are each a real number of 0 to 30; z is a real number of 0 to 30; w is a real number of 0 to 20; p is an integer of 1 to 3; R3 is-OCH2CH(OH)CH2OH, -OCH2CH(OH)CH2OCH2CH(OH)CH2OH, -O(CH2)mOH, or-OCH2 (OH) CHCH2-OC6H4-R4; m is an integer of 2 to 8; and R4 is hydrogen, C1-C4 alkoxy, amino, or an amide residue; and also relates to a lubricant comprising the compound and to a magnetic disk.
本发明的目的是提供一种能使磁头中的活性氧化铝失活的化合物、一种具有抗分解性的润滑剂和一种使用该润滑剂的磁盘。本发明涉及一种由式(1)表示的
氟聚醚化合物:
R1-
CH2-R2- -R3
其中 R1 是 C1-C10 烷氧基;R2 是-(
CF2)pO(
CF2O)x(
CF2CF2O)y(
CF2CF2CF2O)z(
CF2CF2CF2CF2O)w(
CF2)p-;x 和 y 分别是 0 至 30 的实数;z 是 0 至 30 的实数;w 是 0 至 20 的实数;p 是 1 至 3 的整数;R3是-O CH(OH) OH、-O CH(OH) O CH(OH) OH、-O( )mOH或-O (OH)CH -OC6H4-R4;m是2至8的整数;R4是氢、C1-C4烷氧基、
氨基或酰胺残基;还涉及包含该化合物的润滑剂和磁盘。