Super-hydrophobic material and preparation method thereof
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A technology of super-hydrophobicity and coating additives, applied in the direction of coating, can solve the problems of complex process and difficult processing, and achieve the effect of simple process, strong operability and high production efficiency
Inactive Publication Date: 2017-04-05
THE SECOND RES INST OF CIVIL AVIATION ADMINISTRATION OF CHINA
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Embodiment 1
[0035] Embodiment 1 Preparation of superhydrophobic material of the present invention
[0036] 100g cyclohexane, 2.5g nano-silica (15nm), 2.5g nano-silica (50nm), 1g thermoplastic elastomer SBS, 0.05g compatibilizer AIBN, 0.1g antioxidant 1010, 0.1g light stabilizer Agent 770, mixed to form a solution, ultrasonicated in a 50W ultrasonic wave for 30 minutes, to obtain a coating solution.
[0037] Use a 10 μm coater to coat the surface of the aluminum alloy, treat it at 20°C and a humidity of 40% for 3 hours, and cure it in a vacuum oven at 80°C for 2 hours to obtain the superhydrophobic material of the present invention.
Embodiment 2
[0038] Embodiment 2 Preparation of superhydrophobic material of the present invention
[0039] With 2g absolute ethanol, 98g cyclohexane, 5g nano-silica (15nm), 20g nano-silica (50nm), 30g thermoplastic elastomer SBS, 3g compatibilizer DCP, 0.6g antioxidant 1330, 0.6g The light stabilizer 234 was mixed to form a solution, which was ultrasonicated in a 200W ultrasonic wave for 60 minutes to obtain a coating solution.
[0040] Use a 250 μm coater to coat the surface of the aluminum alloy, treat it at 35° C. and a humidity of 80% for 8 hours, and cure it in a vacuum oven at 140° C. for 8 hours to obtain the superhydrophobic material of the present invention.
Embodiment 3
[0041] Embodiment 3 Preparation of superhydrophobic material of the present invention
[0042] With 50g cyclohexane, 50 parts of toluene, 10g nano-silica (100nm), 15g nano-silica (300nm), 15g thermoplastic elastomer SBS, 1.5g compatibilizer BPO, 0.3g antioxidant 168, 0.3g Light stabilizer 770, mixed to form a solution, ultrasonicated in a 100W ultrasonic wave for 45 minutes, to obtain a coating solution.
[0043] Use a 100 μm coater to coat the surface of the aluminum alloy, treat it at 30°C and a humidity of 60% for 6 hours, and cure it in a vacuum oven at 120°C for 6 hours to obtain the superhydrophobic material of the present invention.
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Abstract
The invention provides a super-hydrophobic material. The super-hydrophobic material comprises a substrate and a coating. The coating is composed of, by weight, 100 parts of organic solvent, 0.01-5 parts of antioxidant, 0.01-5 parts of light stabilizer and 0.20-80 parts of coating additives. The invention further provides a preparation process of the super-hydrophobic material. According to the durable super-hydrophobic coating, mastoids are formed through the synergistic effect of a combination of micro-nano structures and the micro-phase structure of thermoplastic elastomer, the mastoid structure can be dispersed uniformly, and the micro-nano structure can be restored automatically in the using process; the micro-nano structure can be well maintained; and the defect that hydrophobic performance is deteriorated due to damage of the mastoid structure is effectively overcome. A preparation method of the super-hydrophobic material is simple in process, high in operability, high in production efficiency and low in cost; durability of the super-hydrophobic coating is achieved; and purposes and application fields of the super-hydrophobic coating are broadened.
Description
technical field [0001] The invention relates to a superhydrophobic material and a preparation method thereof. Background technique [0002] Inspired by the "lotus leaf effect" in nature, superhydrophobic surfaces with micro-nano structures have many unique surface properties, such as self-cleaning, hydrophobicity, low coefficient of friction, and anti-icing properties. Superhydrophobic coating materials can be widely used in aircraft, automobile windows, large buildings, power transmission lines, wind turbine blades, clothing, etc., and have broad market prospects and space. [0003] The research on the surface structure of hydrophobic substances such as lotus leaves and feathers shows that the superhydrophobic coating is composed of micro-nano materials on the surface to provide rough structure and low surface energy chemical substances. In the past thirty years, scholars have conducted a lot of research on the preparation methods and applications of superhydrophobic coati...
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