The heating process in plastics processing is much quicker for darker materials. The reason behind this is that black plastic absorbs infrared radiation better than white or transparent materials. In experiments with black and transparent plastics surprising time differences were detected when joining two plastic shells together.
For example, the majority of plastic cuvettes are inappropriate for UV absorption studies because plastic generally absorbs UV light. Glass can act as a filter, often absorbing the majority of UVC (100‑280 nm) 2 and UVB (280‑315 nm) 2 but allowing some UVA (315‑400 nm) 2 to pass through.The wavelength of the UV light is not converted or shifted in this process. In contrast, UV-fluorescence imaging also requires illuminating a surface with UV light, but the fluorescent material absorbs the UV light and electrons are released, causing the material to radiate light at a longer wavelength. The light emitted during this process is
The TLSC is composed of organic salts that are designed to absorb specific invisible UV and infrared light wavelengths, which then glow (luminesce) as another invisible wavelength. This new wavelength is then guided to the edge of the window plastic, which thin PV solar cell strips convert it into electricity.
The light-coloured and glossy boxes you have in your photos are the safer ones, these will reflect most of the light. The black and matt finish cardboard boxes will just absorb the light (including UV) and get both the box and it's contents hot. Plastic DVD's and CD's warp in the heat and this will be a bigger problem than anything else.
The overwhelming use of non-biodegradable plastics derived from petroleum has resulted in serious environmental pollution and ecological concerns, which has spurred the development of biodegradable and renewable alternative materials. As the most abundant aromatic polymer with excellent biodegradability and biocompatibility, lignin possesses huge potential for the production of a variety of
does plastic absorb uv light
