Flame-retardant, super-wear-resistant, super-hydrophobic three-layer coating and its preparation and application
A super-hydrophobic and super-wear-resistant technology, applied in the field of materials, can solve the problems of the influence of the super-hydrophobic performance of the coating, and the large-scale preparation of the flame-retardant super-hydrophobic coating is not simple, and achieve the expansion of practical application, superior structure and stable performance. Effect
Active Publication Date: 2022-07-01
QILU UNIV OF TECH
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- Description
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Problems solved by technology
However, the introduction of flame retardants in the coating can negatively affect the superhydrophobic properties of the coating
It is not easy to effectively combine the mechanical force of superhydrophobic surface with flame retardant properties, and realize the large-scale preparation of flame retardant superhydrophobic coatings
Method used
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Embodiment 1
[0047] 1 Experimental and Characterization Section
[0048] 1.1 Experimental materials and instruments
[0049] Table 4-1 Main raw materials and reagents
[0050]
[0051] Table 4-2 Main experimental instruments and equipment
[0052]
[0053] 1.2 Experimental preparation and synthesis method
[0054] 1.2.1 Preparation of bilayer superhydrophobic suspension (top layer)
[0055] 15nm SiO 2 (0.45g), 50nm SiO 2 (0.45 g) and 25 μm α-cellulose (0.45 g) were dispersed in a mixed solution containing absolute ethanol (30 mL) and ammonia (10 mL) by stirring, and sonicated in a 60° C. water bath for 30 minutes. TEOS (3 mL) and FAS (0.9 mL) were then added dropwise to the above solution and stirring was continued for 4 hours, referred to as solution A. The bisphenol A epoxy resin EP (5.0g) was dissolved in anhydrous ethanol (25mL) solution for 1 hour by ultrasonic vibration, called solution B, and then solution B was added to solution A in a 60°C water bath for 1 hour, fully ...
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Abstract
The invention belongs to the field of materials, and discloses a flame-retardant, super-wear-resistant, super-hydrophobic three-layer coating and preparation and application thereof, including: using super-hydrophobic / super-oleophobic suspensions as a top layer solution and a middle layer solution respectively; The epoxy resin reacts with the fluorinated curing agent and the flame retardant in a solvent to obtain the bottom layer spray solution; first, the bottom layer spray solution is sprayed on the surface of the substrate, and then the middle layer spray solution is sprayed, dyed to form a semi-cured surface, and then the top layer is sprayed Spray, dissolve, and dry to obtain three layers of wear-resistant super-hydrophobic flame-retardant coating; wherein, the super-hydrophobic / super-oleophobic suspension contains multi-level micro-nano structured particles, fluorinated curing agent, and fluorinated epoxy resin. The coating of the present invention has better flame retardancy and better mechanical stability, and can be expected to be used in large-scale industrial production.
Description
technical field [0001] The invention belongs to the field of materials, and specifically relates to the preparation and research of a flame-retardant, super-wear-resistant and super-hydrophobic coating. Background technique [0002] The disclosure of information in this Background section is only for enhancement of understanding of the general background of the invention and should not necessarily be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art. [0003] With the deepening of research, a number of superhydrophobic / superoleophobic coatings with excellent anti-corrosion, self-cleaning, and anti-icing properties have been prepared. However, the mechanical properties of these coatings are still not reasonably expected for practical applications because the micro / nanostructures are fragile, and reducing the contact area between liquid and solid relies on the air layer trapped...
Claims
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IPC IPC(8): C09D163/00C09D7/61C09D5/18C09D7/65C09D5/08
CPCC09D163/00C09D7/61C09D5/18C09D7/65C09D7/67C09D7/69C09D5/08C08K2201/011C08K2201/003C08L1/02C08K3/36
Inventor 刘利彬张海龙卜鑫瑜
Owner QILU UNIV OF TECH