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Nanostructured capsules could bring about paints that never fade.
Activity of a new range of zinc-free anticorrosive pigments is based on the synergic combination of selected inorganic and organic compounds.
The new pigments are easy to disperse and show good glitter effects especially in strong sunlight.
Many paint properties, like opacity, gloss, stability and colour acceptance, depend on the quality of pigment dispersions.
Organic dyes fade when exposed to UV light. Inorganic pigments do not fade but are often based on toxic heavy metals such as chromium. The solution is colourful, based on black and white powder.
Black pigments with a blue undertone impart attractive and enduring colour to cast-in-situ concrete, pre-cast concrete components or concrete roofing tiles.
Scientists have characterised three types of metal nanoparticle and assessed production of reactive oxygen species through the degradation of methylene blue.
Influence of pigments on the water permeability of waterborne coating systems has been studied by Dutch researchers. At a constant PVC and increasing pigment size the diffusion coefficient decreases.
Just by chance, but even more impressive: A blue pigment reflects about 40 % of infrared heat.
Amphilic brookite Titaniumdioxide with a higher UV irridation investigated for photocatalytic coatings.
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