含氟固体憎水剂的制备及其膜层性能

以有机硅氧烷为基料，通过添加羟基氟硅油等成分，制备了一种含氟固体憎水剂.将所制备的固体憎水剂按不同浓度用乙醇溶解后分别涂覆于A3钢材料表面，均获得了厚度小于1 μm的透明憎水膜层.研究了这些膜层的憎水性和耐腐蚀性能，结果表明，憎水剂的浓度对膜层的憎水性、憎水稳定性及耐腐蚀性等都有影响；氟的添加可有效提高膜层的憎水性能，接触角提高约20°左右，膜层的耐腐蚀性能也得到显著提高. 

Preparations of fluorine-containing solid hydrophobic agent and properties of hydrophobic film

A solid hydrophobic agent with fluorine was mainly prepared by organosiloxane and hydroxyl fluorosilicone oil. After dissolved in ethanol in different concentration, the as-prepared solid hydrophobic agents were coated on the surface of A3 steels to obtain transparent hydrophobic film with thickness of less than 1μm. And the hydrophobicity and corrosion resistance of the hydrophobic film were investigated. Results show that the hydrophobicity of the water-repellent film, as well as hydrophobic stability and corrosion resistance, are affected by the concentration of the hydrophobic agent. The addition of fluoride can obviously improve the contact angle of the hydrophobic film and enhance the corrosion resistance.