| dc.description.abstract | In the world of coatings, there are various types developed to meet human needs, leading to different appearances and functionalities. Common light-guiding methods include materials (glass or plastic), surface mirrors, or lenses. In this research, we propose a method of incorporating magnetic materials into coatings to control light reflection using an external electromagnetic field. The primary objective is to explore ways to modulate the microstructure through magnetic field manipulation.
The study begins with a survey of suitable magnetic materials that can be added to coatings. After screening, a coating formulation is designed. Practical experiments are conducted to observe the magnetic field variations (microstructural differences) by testing different magnet shapes, sizes, and exploring various magnetic field settings. This process yields controllable light patterns with different levels of diffusivity (e.g., 2x1 to 12x2). The experimental results demonstrate that when applied to motorcycle dashboards and compared to untreated samples at a reflection angle of 20°, the reflected light intensity can be reduced by up to 60%, glare index improved by 30%, and clarity enhanced by 90%. Additionally, to ensure the stability and longevity of this application, weather resistance tests and aging predictions are conducted.
Ultimately, this method is expected to have broader applications in efficiently controlling light, including adjusting wavelength, intensity, and distribution. It can be employed in display technologies to enhance brightness, contrast, and color performance, or extend the functionality and performance of optical components. These advancements are closely related to human life and can significantly contribute to various technological fields, promoting the further development and practical application of human civilization. | en_US |