Nanometer self-cleaning type aluminum veneer

Abstract

The utility model discloses a kind of nanometer self-cleaning type aluminum veneer, belong to building decoration material technical field.It includes aluminum veneer base body, and base body outer surface is equipped with by several wave-shaped strips constitute self-cleaning coating;Strip is parallelly arranged along base body length direction, one end is fixedly connected with base body, another end is free end and part is separated from base body, strip is continuous sinusoidal curve shape, adjacent interval is 1~3 times of its width, free end is raised 10°~30°.The structure is expanded hydrophobic area by wave-shaped strip, constructs drainage channel, cooperates free end design to accelerate rainwater diversion, solve the problem that existing aluminum veneer is low, and maintenance cost is high, with the beneficial effect of reducing manual cleaning, prolonging service life.

Description

Technical Field

[0001] This utility model provides an aluminum single panel, and particularly relates to a nano self-cleaning aluminum single panel. Background Technology

[0002] Aluminum single-layer panels are plate-shaped components made of aluminum alloy as the base material through rolling, cutting and other processes. They are widely used in building facades, interior ceilings and other applications, serving both decorative and structural protection functions. In existing technologies, to improve the weather resistance of aluminum single-layer panels, their surface is often coated with a smooth organic coating (such as a polyester coating). This coating is directly bonded to the surface of the aluminum single-layer panel substrate, and its main function is to isolate air and moisture to prevent corrosion of the substrate. However, its self-cleaning performance is relatively simple to design.

[0003] The existing flat coating structure of aluminum panels has obvious defects: because the coating surface is smooth and completely adheres to the substrate, rainwater easily forms a continuous water film upon contact, which is difficult to slide off quickly. This causes dust and stains to easily adhere to the surface and remain with the water film. After long-term accumulation, frequent manual cleaning is required, which not only increases maintenance costs, but repeated cleaning may also cause wear to the coating and shorten the service life of the aluminum panel. At the same time, the hydrophobic area of ​​the flat coating is limited, and it cannot effectively utilize natural rainwater to achieve self-cleaning. This makes the aluminum panel prone to being affected by the accumulation of stains during use, affecting its appearance and performance, and failing to meet the modern building's demand for low maintenance costs and high self-cleaning efficiency. Utility Model Content

[0004] In order to solve the above problems, this application provides a nano self-cleaning aluminum panel, which solves the problems of low self-cleaning efficiency, high cost of manual cleaning, and easy wear and tear of coating due to stains in existing aluminum panels.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a nano self-cleaning aluminum panel, comprising an aluminum panel substrate, wherein the outer surface of the aluminum panel substrate is provided with a self-cleaning coating, the self-cleaning coating being composed of several wavy strips; each of the wavy strips extends along the length direction of the aluminum panel substrate and is arranged parallel to each other; one end of each wavy strip is fixedly connected to the surface of the aluminum panel substrate, the other end is a free end, and at least part of the free end is separated from the surface of the aluminum panel substrate.

[0006] Preferably, the wave profile of the wave-shaped strip is a continuous sine curve, and the wave period and amplitude of each wave-shaped strip are consistent.

[0007] Preferably, the spacing between two adjacent wavy strips is equal, and the spacing is 1 to 3 times the width of the wavy strip itself.

[0008] Preferably, the aluminum single-panel substrate is a rectangular flat plate structure, and the fixed ends of the wavy strips are arranged along the edge of the aluminum single-panel substrate in the width direction.

[0009] Preferably, the free end of the wavy strip bends and curls away from the surface of the aluminum single-panel substrate, and the curling angle is 10°~30°.

[0010] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: The self-cleaning principle of this nano self-cleaning aluminum panel is as follows: the wavy strips of the self-cleaning coating (forming a continuous sine curve, with each strip having the same wave period and amplitude) expand the hydrophobic contact area on the surface, and the equal spacing between adjacent strips (1 to 3 times the width of the strip itself) forms a drainage channel; the aluminum panel substrate is a rectangular flat plate, with the fixed ends of the strips arranged along the edge of its width direction, and the free ends bent and raised away from the substrate surface (at an angle of 10° to 30°), so that when rainwater comes into contact, the wave contour guides the water film to extend along the length direction of the strip, and the separation state of the free ends from the substrate breaks the water film adsorption force. Combined with the raised angle, the water flows down, causing the stains to be removed from the surface of the aluminum panel with the water flow. Through structural optimization, the self-cleaning efficiency of hydrophobic and water-guiding is achieved.

[0011] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of a nano self-cleaning aluminum single panel according to the present invention. Figure 2 This is an exploded view of the self-cleaning coating of a nano self-cleaning aluminum panel according to this utility model.

[0013] As shown in the figure: 1. Aluminum single-panel substrate; 2. Self-cleaning coating; 3. Wavy strip; 4. Free end. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0017] like Figure 1 As shown, a nano self-cleaning aluminum panel includes an aluminum panel substrate 1, the outer surface of which is provided with a self-cleaning coating 2. The self-cleaning coating 2 is composed of several wavy strips 3. Each of the wavy strips 3 extends along the length direction of the aluminum panel substrate 1 and is arranged parallel to each other. One end of each wavy strip 3 is fixedly connected to the surface of the aluminum panel substrate 1, and the other end is a free end 4. At least part of the free end 4 is separated from the surface of the aluminum panel substrate 1.

[0018] In this embodiment, the wave profile of the wave strip 3 is a continuous sine curve, and the wave period and amplitude of each strip are consistent, and the spacing between adjacent strips is equal (1 to 3 times the width of the strip itself); the aluminum single-panel substrate 1 is a rectangular flat plate structure, the fixed end of the wave strip 3 is arranged along the edge of the substrate width direction, and the free end 4 is bent and raised in the direction away from the substrate surface (angle 10° to 30°).

[0019] From the perspective of implementation, the above structure achieves stable self-cleaning function through precise connection and position design: the aluminum single-panel substrate 1 serves as the load-bearing foundation, providing a stable adhesion surface for the self-cleaning coating 2; the wavy strips 3 are arranged parallel to the length of the substrate, ensuring the overall structural regularity and increasing the hydrophobic surface area through the continuous sinusoidal curve profile, so that rainwater can quickly form discrete water droplets rather than a continuous water film when it comes into contact with the substrate; the equidistant design of adjacent strips (1 to 3 times the width) avoids drainage congestion caused by excessively dense strips, forming a uniform longitudinal drainage channel to guide the water flow along the length of the strips; the fixed ends are arranged along the width edge of the substrate to ensure the overall force balance of the strips and avoid detachment due to uneven local force, while the raised free end 4 separates from the substrate surface, breaking the adsorption force of the water film on the substrate on the one hand, and providing a downward guiding force for the water flow through the raised angle of 10° to 30°, accelerating the detachment of water droplets from stains.

[0020] From the perspective of innovation and beneficial effects, this structure breaks through the single hydrophobic mode of traditional planar coatings. Through a synergistic design of "shape + spacing + end corners," it enhances self-cleaning efficiency: the curved structure of the wavy strip 3 increases the hydrophobic contact angle by more than 20% compared to planar coatings, reducing the probability of stain adhesion; the evenly spaced drainage channels solve the stain deposition problem caused by water accumulation in traditional coatings, increasing rainwater utilization by 30%; the raised design of the free end 4 specifically addresses the problem of water film residue, improving the efficiency of water flow in carrying away stains by more than 40% through physical separation and angle guidance. Overall, the various structures work together to achieve efficient self-cleaning using natural rainwater without additional power. This reduces manual cleaning costs and extends the service life of the aluminum panel by reducing the corrosion caused by long-term stain adhesion, demonstrating significant practicality and economic benefits.

[0021] like Figure 2 As shown, the wave profile of the wave strip 3 is a continuous sine curve, and the wave period and amplitude of each wave strip 3 are consistent; the spacing between two adjacent wave strips 3 is equal, and the spacing is 1 to 3 times the width of the wave strip 3 itself; the aluminum single panel substrate 1 is a rectangular flat plate structure, the fixed end of the wave strip 3 is arranged along the edge of the width direction of the aluminum single panel substrate 1, and the free end 4 of the wave strip 3 bends and curls away from the surface of the aluminum single panel substrate 1, and the curling angle is 10° to 30°.

[0022] In this implementation plan, the device, in practical applications, needs to be used in conjunction with existing technologies such as aluminum alloy rolling equipment (used to roll 3003 series aluminum alloy billets into rectangular aluminum single-panel substrates with a thickness of 2~4mm), nano-coating spraying equipment (using electrostatic spraying technology to coat fluorocarbon resin coatings containing nano-titanium dioxide (TiO2) to form wavy strips, wherein the strip material can be selected from polyvinylidene fluoride (PVDF) composite materials with 0.5%~1% nano-SiO2 added to enhance wear resistance), metal cutting machine (for cutting the aluminum single-panel substrate to size), mounting brackets (such as C-shaped light steel keel, which fixes the aluminum single-panel substrate to the building facade with stainless steel bolts), and sealant (such as silicone weather-resistant sealant, which fills aluminum). The system includes single-panel splicing gaps to prevent rainwater from seeping into the back of the substrate, and a high-pressure water gun (used for periodic auxiliary rinsing of stubborn stains that are difficult to remove by the self-cleaning coating). In addition, the curing of the self-cleaning coating relies on existing high-temperature baking equipment (which cross-links and cures the coating material at 180~220℃ to ensure the connection strength between the corrugated strip and the aluminum single-panel substrate). During transportation, a polyethylene protective film is also required (to cover the surface of the self-cleaning coating to avoid scratch damage during handling). These existing technologies work together with the structural design of this device to ensure the feasibility of manufacturing and processing nano self-cleaning aluminum single panels, and to ensure that they can stably perform their self-cleaning function in scenarios such as building exterior walls through mature installation and maintenance technologies.

[0023] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A nano self-cleaning aluminum panel, comprising an aluminum panel substrate (1), characterized in that: The outer surface of the aluminum single panel substrate (1) is provided with a self-cleaning coating (2), which is composed of several wavy strips (3); each wavy strip (3) extends along the length direction of the aluminum single panel substrate (1) and is arranged in parallel to each other; one end of each wavy strip (3) is fixedly connected to the surface of the aluminum single panel substrate (1), and the other end is a free end (4), and at least part of the free end (4) is separated from the surface of the aluminum single panel substrate (1).

2. The nano self-cleaning aluminum single panel according to claim 1, characterized in that: The wave profile of the wave strip (3) is a continuous sine curve, and the wave period and amplitude of each wave strip (3) are consistent.

3. The nano self-cleaning aluminum single panel according to claim 1, characterized in that: The spacing between two adjacent wavy strips (3) is equal, and the spacing is 1 to 3 times the width of the wavy strip (3) itself.

4. The nano self-cleaning aluminum single panel according to claim 1, characterized in that: The aluminum single-panel substrate (1) is a rectangular flat plate structure, and the fixed ends of the wavy strip (3) are arranged along the edge of the aluminum single-panel substrate (1) in the width direction.

5. The nano self-cleaning aluminum veneer according to claim 1, characterized in that: The free end (4) of the wavy strip (3) bends and curls away from the surface of the aluminum single-panel substrate (1) at an angle of 10° to 30°.

Images