INSULATED WIRE
There is provided an insulated wire including a wire conductor and at least one extruded insulation layer formed on the wire conductor. The at least one extruded insulation layer is made of a phase separated resin composition including: a resin (A) including polyether ether ketone as a continuous phase; and a resin (B) with a relative dielectric constant of 2.6 or less as a dispersed phase.
1 . An insulated wire comprising:
a wire conductor; and
at least one extruded insulation layer formed on the wire conductor, the at least one extruded insulation layer being made of a phase separated resin composition including:
a resin (A) including polyether ether ketone as a continuous phase; and
a resin (B) with a relative dielectric constant of 2.6 or less as a dispersed phase.
2 . The insulated wire according to claim 1 , wherein parts by mass ratio of the resin (A) to the resin (B) “(A)/(B)” is from 25/70 to 60/35.
3 . The insulated wire according to claim 1 , wherein:
the resin (A) is polyether ether ketone or a mixture of polyether ether ketone and polyphenylene sulfide, and
the resin (B) is polyethylene, polypropylene, 4-methylpentene-1, syndiotactic polystyrene or a mixture of two or more thereof.
4 . The insulated wire according to claim 2 , wherein:
the resin (A) is polyether ether ketone or a mixture of polyether ether ketone and polyphenylene sulfide, and
the resin (B) is polyethylene, polypropylene, 4-methylpentene-1, syndiotactic polystyrene or a mixture of two or more thereof.
5 . The insulated wire according to claim 1 , wherein the resin (A) has an apparent viscosity at 380° C. less than the apparent viscosity at 380° C. of the resin (B).
6 . The insulated wire according to claim 2 , wherein the resin (A) has an apparent viscosity at 380° C. less than the apparent viscosity at 380° C. of the resin (B).
7 . The insulated wire according to claim 3 , wherein the resin (A) has an apparent viscosity at 380° C. less than the apparent viscosity at 380° C. of the resin (B).
8 . The insulated wire according to claim 4 , wherein the resin (A) has an apparent viscosity at 380° C. less than the apparent viscosity at 380° C. of the resin (B).
9 . The insulated wire according to claim 5 , wherein the apparent viscosity of the resin (A) at 380° C. is 2000 Pa·s or less.
10 . The insulated wire according to claim 6 , wherein the apparent viscosity of the resin (A) at 380° C. is 2000 Pa·s or less.
11 . The insulated wire according to claim 7 , wherein the apparent viscosity of the resin (A) at 380° C. is 2000 Pa·s or less.
12 . The insulated wire according to claim 8 , wherein the apparent viscosity of the resin (A) at 380° C. is 2000 Pa·s or less.
13 . The insulated wire according to claim 1 , wherein at least one additional coating layer made of one of thermoplastic polyamide-imide, thermoplastic polyimide, polyetherimide and polyphenylene sulfide is further formed on the at least one extruded insulation layer.
14 . The insulated wire according to claim 2 , wherein at least one additional coating layer made of one of thermoplastic polyamide-imide, thermoplastic polyimide, polyetherimide and polyphenylene sulfide is further formed on the at least one extruded insulation layer.
15 . The insulated wire according to claim 3 , wherein at least one additional coating layer made of one of thermoplastic polyamide-imide, thermoplastic polyimide, polyetherimide and polyphenylene sulfide is further formed on the at least one extruded insulation layer.
16 . The insulated wire according to claim 4 , wherein at least one additional coating layer made of one of thermoplastic polyamide-imide, thermoplastic polyimide, polyetherimide and polyphenylene sulfide is further formed on the at least one extruded insulation layer.