Ultraviolet-excited bismuth oxychloride-containing nano coating for automobile surface and automobile

Abstract

The utility model relates to the technical field of automobile surface coatings, in particular to an ultraviolet excitation bismuth oxychloride-containing nano coating for an automobile surface and an automobile. The coating can enhance the visual effect of the automobile surface and improve the safety. The light-emitting material is mainly composed of bismuth oxychloride (BiOCl)-containing nanoparticles, has strong light-emitting ability, and can emit continuous light in an ultraviolet environment. The coating not only has good visible light absorption and luminescence properties, but also has excellent wear resistance, weather resistance and adhesive force, is suitable for being coated on the external surface of an automobile, and can improve the visibility and safety of the automobile.

Description

Technical Field

[0001] This utility model relates to the field of automotive surface coating technology, and in particular to an ultraviolet-excited bismuth oxychloride nanocoating for automotive surfaces and automotive applications. Background Technology

[0002] With the development of technology, automotive design not only requires visual appeal and decoration, but also increasingly focuses on visibility and safety. The functions of automotive surface coatings are becoming increasingly diversified, including UV resistance, corrosion resistance, stain resistance, and reflectivity. However, existing automotive coatings typically only possess decorative or protective functions, lacking luminescence capabilities. This results in poor visibility in low-light environments, affecting driving safety and aesthetics. Currently, existing luminescent coatings on the market suffer from problems such as luminous efficacy decay, poor durability, and high cost, making it difficult to meet the long-term use requirements of automotive surface coatings. Bismuth oxide (Bi2O3) is a semiconductor material that has been extensively studied due to its excellent optical properties and strong luminescence characteristics. In particular, bismuth oxychloride (Cl-Bi2O3) nanomaterials exhibit strong luminescence performance under ultraviolet excitation and can emit light independently of temperature. By applying bismuth oxychloride nanomaterials to automotive coatings, not only can the visibility of the coating be enhanced, but its service life can also be extended, providing a novel, luminescent automotive surface coating. Summary of the Invention

[0003] To address the shortcomings of the existing technologies, a UV-excited bismuth oxychloride nanocoating for automotive surfaces and the corresponding vehicle are provided. This bismuth oxychloride luminescent nanocoating exhibits excellent luminescence performance and high durability. The coating can form a luminescent protective film on the vehicle surface, providing good visibility in foggy or low-light environments, thus enhancing the vehicle's appearance and safety.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an ultraviolet-excited bismuth oxychloride nano-coating for automobile surfaces, the coating being composed of bismuth oxychloride nanoparticles with a particle size of 1 to 500 nanometers.

[0005] The aforementioned UV-excited bismuth oxychloride nanocoating for automotive surfaces has a thickness of 1 micrometer to 100 micrometers.

[0006] The aforementioned UV-excited bismuth oxychloride nanocoating for automotive surfaces uses resin, silane, or polyurethane as a binder.

[0007] An automobile having its surface coated with the aforementioned UV-excited bismuth oxychloride nanocoating for automobile surfaces.

[0008] The beneficial effects of this invention for a UV-excited bismuth oxychloride nanocoating on automotive surfaces are that the coating absorbs sunlight (especially ultraviolet light) during the day, providing good visibility. The nano-sized bismuth oxychloride effectively increases its surface area, resulting in a coating with high luminous efficiency and providing uniform and continuous illumination.

[0009] The thickness of the coating can be adjusted according to actual needs, generally between 10 and 100 micrometers, to ensure both good luminescence effect and improved wear resistance and durability of the coating.

[0010] This coating effectively resists the erosion of ultraviolet rays, oxidation, rain, and other external environmental factors, preventing luminescence decay due to prolonged exposure to the external environment. Simultaneously, the coating exhibits excellent wear and scratch resistance, resisting wear during normal driving and ensuring its long-term stable luminescence effect.

[0011] The coating production process does not involve toxic substances, and the raw materials used are recyclable and environmentally friendly. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a UV-excited bismuth oxychloride nanocoating;

[0013] Figure 2 This is a schematic diagram illustrating the working principle of UV-excited bismuth oxychloride nanocoatings. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0015] like Figure 1-2 As shown, a UV-excited bismuth oxychloride nanocoating for automotive surfaces is described. The coating consists of bismuth oxychloride nanoparticles with a particle size ranging from 1 to 500 nanometers. The coating thickness ranges from 1 micrometer to 100 micrometers. The binder for the coating is a resin, silane, or polyurethane. The coating contains bismuth oxychloride nanoparticles.

[0016] An automobile has a surface coated with the aforementioned UV-excited bismuth oxychloride nanocoating for automobile surfaces. The coating is uniformly applied to the automobile surface; the coating is then cured to produce visible light emission under UV light irradiation. This coating can form a luminescent protective film on the automobile surface, providing good visibility in foggy or low-light environments, enhancing the automobile's appearance and safety.

[0017] The preparation method of UV-excited bismuth oxychloride nanocoating for automotive surfaces is as follows:

[0018] S1: Preparation of UV-excited bismuth oxychloride nanocoating 1;

[0019] S2: The coating is formed by mixing bismuth oxychloride nanoparticles with solvents and other additives to form a uniform coating. A bismuth oxychloride nanosolution is prepared by the sol-gel method, and the molar ratio of bismuth chloride to bismuth source is 1:2.

[0020] S3: Spray the above solution onto the surface of the aluminum alloy plate, with a coating thickness of 30μm.

[0021] S4: Anneal the coating at 200°C for 2 hours.

[0022] UV excitation test:

[0023] The photocatalytic activity of the coating was tested by irradiating it with an ultraviolet lamp (S1, wavelength 254 nm) for 4 hours.

[0024] Experimental results show that the coating surface can emit light, achieving an illumination effect. Specifically: first, ultraviolet light excitation is used; then, the coating applied to the vehicle body emits light, achieving the luminous effect.

[0025] The coating of this invention is composed of a luminescent material based on bismuth oxychloride (BiOCl) nanoparticles, containing bismuth oxychloride as the core luminescent material and employing nanoscale dispersion treatment to give it excellent luminescent properties. Bismuth oxychloride material has strong photoluminescent properties, absorbing ultraviolet or visible light and then emitting light. The coating absorbs sunlight (especially ultraviolet light) during the day, providing good visibility. The nanoscale size of bismuth oxychloride effectively increases its surface area, resulting in high luminescent efficiency and providing uniform and continuous illumination. The emission wavelength range of the coating is 400 nm to 550 nm, preferably 400 nm to 500 nm.

[0026] Coating Process: The nano-coating used in this invention is uniformly applied to the surface of a car using spraying, brushing, dipping, or other conventional coating methods. The coating can be applied to the exterior metal, plastic, and glass parts of the vehicle body, especially prominent areas such as the front, rear, doors, and windows, ensuring maximum visibility during nighttime driving. The coating thickness can be adjusted according to actual needs, generally between 10-100 micrometers, ensuring both good luminescence and improved wear resistance and durability.

[0027] Luminescent Properties: The coating exhibits luminescence in low-light environments. When irradiated with ultraviolet or visible light, the bismuth oxychloride particles in the coating absorb light energy and continuously emit light without an external power source. This luminescent property effectively improves vehicle visibility, especially in adverse weather conditions, enhancing driving safety. The luminescence intensity and duration of the coating can be optimized by adjusting parameters such as the concentration of bismuth oxychloride nanoparticles, coating thickness, and surface treatment processes.

[0028] Weather resistance and durability: To ensure the coating maintains its luminescence effect during prolonged automotive use, this invention incorporates weather-resistant enhancement components in the coating design. This coating effectively resists erosion from ultraviolet rays, oxidation, rain, and other external environmental factors, preventing luminescence decay due to prolonged exposure to the external environment. Simultaneously, the coating exhibits excellent abrasion and scratch resistance, resisting wear and tear during normal driving and ensuring its long-term stable luminescence effect.

[0029] Environmental friendliness: The coating material of this invention uses environmentally friendly bismuth oxychloride as the luminescent matrix, avoiding the harmful substances commonly found in traditional coatings, and meeting the requirements of the modern automotive industry for environmental protection and sustainable development. The coating production process does not involve toxic substances, and the raw materials used are recyclable, making it environmentally friendly.

[0030] Application areas: This technology is applicable to various types of vehicles, including passenger cars, commercial vehicles, and transport vehicles. Its luminescent nano-coating can effectively improve the visibility of vehicles when driving in low light or foggy weather, increasing driving safety, and is especially suitable for high-risk traffic environments (such as mountainous areas and urban roads).

[0031] Of course, the above description is not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. An ultraviolet-excited bismuth oxychloride nanocoating for automotive surfaces, characterized by: The coating is composed of bismuth oxychloride nanoparticles having a particle size of 1 to 500 nanometers, a thickness of 1 micrometer to 100 micrometers, and a binder of resin, silane or polyurethane.

2. An automobile characterized by: The surface of the article is coated with a UV-excited bismuth oxychloride nanoparticle coating for automotive surfaces as described in claim 1.

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