The thermochromic pigment can be incorporated into a coating solution for the film formulation or directly as paint with a special binder (such as PEG) for texture surface effects. Materials containing 0.1–1.0% by weight of thermochromic pigments in a host polymer have a visually retrievable, reversible thermochromic transition.

2020年1月1日 · Thermochromic polymer systems are obtained by doping the polymers matrix with thermochromic additives (17). Leuco dye-developer complexes became the most important systems to achieve thermochromic properties for different polymer materials by endowing a separate phase of the thermochromic system in a nonthermochromic polymer matrix.

2020年3月15日 · Thermochromic coatings, thanks to their ability to change their solar reflectance at different temperatures, have been proposed to reduce the heating penalties during colder seasons of traditional cool coatings. In this work, four different thermochromic pigments have been used to create façade paints.

2020年7月15日 · The cement plaster developed for exterior façade applications was integrated with thermochromic paint (TC) and phase change materials (PCM) to dynamically control thermal stresses and solar radiation on the exterior surface of buildings. The solar reflectance, infrared emittance, and thermal conductivity of the samples were measured.

2020年10月1日 · To design a thermochromic paint, four microencapsulated leuco dyes thermochromic in powder form were purchased from different companies (Table 1). The paints were created using two components: an acrylic water-based base paint, characterized by a high concentration of TiO 2 molecules (14%), and the thermochromic powder mixed in different ...

2019年6月1日 · Thermochromic pigment used in this study exhibits dark blue color below the transition temperature of around 31 °C, and light blue color above the transition temperature. The chemical and physical properties of blue thermochromic pigment were described in previous studies [26], [27]. The reflectance spectra in the wavelength of 300–1800 nm ...

2023年12月1日 · Sample B, devoid of thermochromic pigments, does not exhibit any temperature-dependent color variation. Differently, the surface of samples T and TT appears white at high temperatures. Indeed, the paint applied for the top-coats is transparent and the thermochromic pigment appears as colorless above the color transition temperature.

2020年3月15日 · Finally, in order to represent the a albedo of the thermochromic coating the following function was considered: (24) r (T) = r dark + r cool-r dark 2 1 + erf (t norm) where r (T) is the reflectance at temperature T; r dark is the reflectance associated to surface temperatures below the thermochromic transition temperature (TT); r cool is the ...

2021年1月1日 · Thermochromic materials are the substance to change colour due to temperature change. Smart materials are used in all types of thermochromic paints, thermochromic pigments, thermochromic inks, thermochromic polymers, thermochromic papers, thermochromic plastics etc. Fig. 5 shows the appilication of thermochromic materials. Applications in ...

Thermochromic materials respond to temperature changes by modifying their optical properties [93]. Thermochromic materials maintain a highly emissive or transmitting semiconductor structure in the infrared; when the transition point (T c) is reached, the material behaves like a semi metal, with high reflectivity in the infrared band [98].