Preparation method of a durable anti-icing superhydrophobic coating
A super-hydrophobic coating, ultrasonic technology, applied in coatings, anti-fouling/underwater coatings, paper coatings, etc., can solve the problem that super-hydrophobic surfaces cannot resist icing for a long time, reduce the adhesion strength of ice on the surface, and resist icing. It is not very ideal, etc., to achieve the effects of excellent self-cleaning performance, good durability and firmness, and excellent superhydrophobicity.
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Embodiment 1
[0051] In this embodiment, the base material is an aluminum alloy plate with a thickness of about 200*200*3mm. The aluminum alloy plate can be Shanghai Zhixin Industry and Trade Co., Ltd.-2014 type, a super-hydrophobic aluminum alloy plate that can resist freezing for a long time The preparation method is carried out as follows:
[0052] (1) The aluminum alloy plate is used as the substrate, cleaned with water and a clean cotton cloth, and then the surface of the substrate is roughened by sandblasting with 80 mesh brown corundum sand, the air pressure is 0.5MPa, and the sandblasting time is 1 minute; then use Acetone, ethanol and deionized water are used to clean the surface of the substrate in sequence, and dry at room temperature for use;
[0053] (2) 5g of epoxy resin (Nantong Xingchen Synthetic Materials Co., Ltd., Phoenix brand, epoxy resin (E-44)), 5g of alicyclic amine curing agent ultrasonic and stirred in 50mL of acetone, 30mL of xylene, 20mL of acetic acid In the mi...
Embodiment 2
[0083] In this embodiment, the base material is a poplar board with a thickness of about 200*200*15mm, and the preparation method of a superhydrophobic poplar board that can resist freezing for a long time is carried out as follows:
[0084] (1) The poplar board is used as the substrate, cleaned with water and clean cotton cloth, and then the surface of the substrate is roughened by sandblasting with 200 mesh brown corundum sand, the air pressure is 2.0MPa, and the sandblasting time is 30s; after that, use acetone, Wash the substrate surface with ethanol and deionized water in sequence, and dry it at room temperature for use;
[0085] (2) 8g of epoxy resin (Nantong Xingchen Synthetic Materials Co., Ltd., Phoenix brand, epoxy resin (E-51)), 5g of alicyclic amine curing agent ultrasonic and stirred in 50mL of acetone, 35mL of toluene, 15mL of ethyl acetate In the mixed solvent of ester, the epoxy resin glue solution is prepared;
[0086] (3) Weigh 2.4g of hydrophilic fumed sili...
Embodiment 3
[0104] In this embodiment, the substrate material is corrugated cardboard with a thickness of about 200*200*5mm, and the preparation method of superhydrophobic corrugated cardboard that can resist freezing for a long time is carried out according to the following steps:
[0105] (1) Corrugated cardboard is used as the base material, wipe it clean with a clean cotton cloth, and set aside;
[0106] (2) 5g of epoxy resin (Nanya Plastic Industry Co., Ltd., epoxy resin (NPEL-128)), 2g of alicyclic amine curing agent, ultrasonic and stirred in 40mL of acetone, 40mL of xylene, 20mL of tert-butyl acetate In the mixed solvent, the epoxy resin glue solution is prepared;
[0107] (3) Weigh 1.1g of hydrophilic fumed silica with a particle size of 7-40nm and 0.9g of silica with an average particle size of 300nm, stir and ultrasonically disperse them in 100mL of n-hexane, ultrasonically for 1.5 hours; then add 4g of hexadecyltrimethoxysilane, after continuing to stir and sonicate for 1.5 hou...
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