Wing and anti-icing system
View Patent ↗A mixed coating material includes: a cold curing resin that undergoes reaction curing at normal room temperature; and a particulate fluororesin. The constituent ratio of the particulate fluororesin in a coating film that is a cured state of the mixed coating material is 43 wt % or more and 82 wt % or less. A wing includes a non-water-repellent coating film that forms an outermost layer in a water droplet impact region in a leading edge portion of the wing; and a water-repellent coating film that is formed of the mixed coating material and that forms an outermost layer in a water-repellent region adjacent to the water droplet impact region P. An anti-icing system includes the wing and a heating unit that heats the water droplet impact region.
1. A wing, comprising:
a non-water-repellent coating film that forms an outermost layer in a water droplet impact region in a leading edge portion of the wing; and
a water-repellent coating film that includes a mixed coating material and that forms an outermost layer in a water-repellent region adjacent to the water droplet impact region,
wherein the mixed coating material comprises:
a cold curing resin that undergoes reaction curing at a normal room temperature; and
a particulate fluororesin,
wherein a constituent ratio of the particulate fluororesin in a coating film that is a cured state of the mixed coating material is 43 wt % or more and 82 wt % or less,
wherein the non-water-repellent coating film extends from the water droplet impact region to the water-repellent region, and
wherein the water-repellent coating film is disposed on the non-water-repellent coating film in the water-repellent region.
2. The wing according to claim 1 , wherein the particulate fluororesin comprises a tetrafluoroethylene resin.
3. The wing according to claim 1 , wherein the cold curing resin comprises a fluororesin.
4. The wing according to claim 2 , wherein the cold curing resin comprises a fluororesin.
5. The wing according to claim 1 , wherein the particulate fluororesin has an average particle size of less than 1.5 μm.
6. The wing according to claim 2 , wherein the particulate fluororesin has an average particle size of less than 1.5 μm.
7. The wing according to claim 1 , wherein the particulate fluororesin has an average particle size of less than 1.0 μm.
8. The wing according to claim 2 , wherein the particulate fluororesin has an average particle size of less than 1.0 μm.
9. An anti-icing system comprising:
the wing according to claim 1 ; and
a heater that heats the water droplet impact region.
10. An anti-icing system comprising:
the wing according to claim 2 ; and
a heater that heats the water droplet impact region.
11. An anti-icing system comprising:
the wing according to claim 3 ; and
a heater that heats the water droplet impact region.
12. An anti-icing system comprising:
the wing according to claim 4 ; and
a heater that heats the water droplet impact region.
13. The anti-icing system according to claim 9 , wherein the heater further heats at least a portion of the water-repellent region, the portion being adjacent to the water droplet impact region.
14. The anti-icing system according to claim 10 , wherein the heater further heats at least a portion of the water-repellent region, the portion being adjacent to the water droplet impact region.
15. The anti-icing system according to claim 11 , wherein the heater further heats at least a portion of the water-repellent region, the portion being adjacent to the water droplet impact region.
16. The anti-icing system according to claim 12 , wherein the heater further heats at least a portion of the water-repellent region, the portion being adjacent to the water droplet impact region.