Erosion resistant anti-icing coatings
A process for protecting an article using an anti-icing coating includes the steps of applying upon at least one surface of an article an anti-icing composition comprising at least one polysiloxane free of additives; and curing the anti-icing composition to form an anti-icing coating exhibiting an ice shear strength of about 19 kPA to about 50 kPa.
1 . A process for protecting an article using an anti-icing coating, comprising:
applying upon at least one surface of an article an anti-icing composition comprising at least one polysiloxane free of additives; and
curing said anti-icing composition to form an anti-icing coating exhibiting an ice shear strength of about 19 kPA to about 50 kPa.
2 . The process of claim 1 , further comprising the step of applying a primer coating upon said at least one surface prior to applying said anti-icing composition.
3 . The process of claim 2 , wherein applying said primer comprises a process selected from the group consisting of spraying, brushing, dipping, and bonding.
4 . The process of claim 2 , wherein applying said primer further comprises applying said primer coating comprising a primer composition and a catalyst.
5 . The process of claim 4 , wherein said catalyst comprises any one of the following: platinum, palladium and rhodium.
6 . The process of claim 1 , wherein applying said anti-icing composition comprises a process selected from the group consisting of spraying, brushing, dipping, and bonding.
7 . The process of claim 1 , wherein curing said anti-icing composition comprises heating said anti-icing composition at about 77° F. to about 300° F. for about 30 minutes to about 135 minutes
8 . The process of claim 1 , wherein the article is selected from the group consisting of turbine engine components, aircraft components, watercraft, power lines and communication lines.
9 . A coated article, comprising:
an article having at least one surface; and
an anti-icing coating exhibiting an ice shear strength of about 19 kPA to about 50 kPa disposed upon said at least one surface,
wherein said anti-icing coating includes an anti-icing composition comprising at least one polysiloxane free of additives.
10 . The coated article of claim 9 , wherein said at least one polysiloxane is selected from the group consisting of platinum cured vinyl terminated polydimethyl siloxane, peroxide cured vinyl terminated polydimethyl siloxane, polyphenylmethyl siloxane, diphenyl siloxane and 4-polytrifluoropropylmethyl siloxane.
11 . The coated article of claim 9 , wherein said at least one polysiloxane free of additives is free of at least one solid additive, at least one liquid additive or both said at least one solid additive and said at least one liquid additive.
12 . The coated article of claim 9 , wherein said anti-icing coating provides erosion protection from about −65° F. to about 400° F.
13 . The coated article of claim 9 , wherein said anti-icing coating is thermally stable up to about 500° F.
14 . The coated article of claim 9 , further comprising a primer coating disposed upon said at least one surface and beneath said anti-icing coating.
15 . The coated article of claim 14 , wherein said primer coating comprises a silane coupling agent, a titanate coupling agent, or both.
16 . The coated article of claim 9 , wherein said article is selected from the group consisting of turbine engine components, aircraft components, watercraft, power lines and communication lines.
17 . A coated blade, comprising:
a blade having an inner span area; and
an anti-icing coating exhibiting an ice shear strength of about 19 kPA to about 50 kPa disposed upon at least said inner span area,
wherein said anti-icing coating includes an anti-icing composition comprising at least one polysiloxane free of additives.
18 . The coated blade of claim 17 , wherein said at least one polysiloxane free of additives comprises a polyalkyl siloxane selected from the group consisting of platinum cured vinyl terminated polydimethyl siloxane, peroxide cured vinyl terminated polydimethyl siloxane, polyphenylmethyl siloxane, polydiphenyl siloxanes, and 4-polytrifluoropropylmethyl siloxane.
19 . The coated blade of claim 17 , wherein said at least one polysiloxane free of additives is free of at least one solid additive, at least one liquid additive or both said at least one solid additive and said at least one liquid additive.
20 . The coated blade of claim 17 , wherein said anti-icing coating provides erosion protection from about −65° F. to about 400° F.
21 . The coated blade of claim 17 , wherein said anti-icing coating is thermally stable up to about 500° F.
22 . The coated blade of claim 17 , further comprising a primer coating disposed upon at least said inner span area and underneath said anti-icing coating.
23 . The coated blade of claim 22 , wherein said primer coating comprises a silane coupling agent, a titanate coupling agent, or both.