Polysiloxane insulation coating for railway cantilever and preparation method thereof

[0023] The invention provides a kind of polysiloxane insulating paint and preparation method thereof on the railway arm, the weight component of this polysiloxane insulating paint is as follows:

[0024]

[0025]

[0026] The present invention also provides a kind of preparation method that is used for the polysiloxane insulation paint on the railway arm, comprises the following steps:

[0027] S1. Add hydroxyl-terminated linear polysiloxane resin, hydroxyl branched polysiloxane resin, N20, aluminum hydroxide, and NP-10 into the kneader and heat up to 180°C for 3 hours under vacuum and kneading (vacuum degree is 0.08 MPa); S2, when the temperature of the material drops below 120°C, add small molecule hydroxyl silicone oil and continue kneading for 30 minutes; S3, grind the kneaded material to below 45 μm by a three-roll mill; S4, add the ground material to the mixing and dispersing machine Then add 120# solvent oil and stir to disperse evenly, then add methyl tributylket...

[0029] The invention provides a kind of polysiloxane insulating paint and preparation method thereof on the railway arm, the weight component of this polysiloxane insulating paint is as follows:

[0030]

[0031]

[0032] The present invention also provides a kind of preparation method that is used for the polysiloxane insulation paint on the railway arm, comprises the following steps:

[0033] S1. Add hydroxyl-terminated linear polysiloxane resin, hydroxyl branched polysiloxane resin, R972, aluminum hydroxide, and composite ceramic powder into the kneader and heat up to 180°C for 3 hours under vacuum and kneading (vacuum degree: 0.08MPa); S2, when the temperature of the material drops below 120°C, add small molecular hydroxy silicone oil and continue kneading for 30 minutes; S3, grind the kneaded material to below 45 μm by a three-roll mill; S4, add the ground material to mix and disperse Then add naphtha into the machine and stir to disperse evenly, then add methyl tri...

[0035] The invention provides a kind of polysiloxane insulating paint and preparation method thereof on the railway arm, the weight component of this polysiloxane insulating paint is as follows:

[0036]

[0037]

[0038] The invention provides a kind of polysiloxane insulating paint and preparation method thereof on the railway arm, the weight component of this polysiloxane insulating paint is as follows:

[0039] S1. Add hydroxyl-terminated linear polysiloxane resin, hydroxyl branched polysiloxane resin, R8200, alumina, and composite ceramic powder into the kneader and heat up to 180°C for 3 hours under vacuum and kneading (vacuum degree is 0.08 MPa); S2, when the temperature of the material drops below 120°C, add small molecule hydroxyl silicone oil and continue kneading for 30 minutes; S3, grind the kneaded material to below 45 μm by a three-roll mill; S4, add the ground material to the mixing and dispersing machine Then add naphtha and stir to disperse evenly, then ...