Optically Tunable Functional Nano-Coatings on Fly Ash-Based Ceramics

这个废物再利用项目开发了一种新的纳米技术，包覆了飞灰颗粒，以模拟二氧化钛作为涂料颜料/填充物。该策略使用一种新型的高温喷射器流态化床反应器来制备可调的二氧化硅/氧化锌/二氧化钛分层涂层，该涂层的折射率增加，以增强全内反射和散射，从而增加白度和不透明度；二氧化钛的掺杂中和了颜色，减少了涂料白垩化。这些先进的纳米涂层材料是CI和KIP在材料开发方面建立长期合作伙伴关系的新方向。从实验室到中试规模的生产扩展将使涂料能够大量使用，产生显著的经济和环境结果。

This waste reutilisation project develops a novel nanotechnology of coated fly ash particles to simulate titania as paint pigment/filler. The strategy uses a novel high-temperature injector fluidised bed reactor to make tunable coatings of graded SiO2/ZnO/TiO2 layers of increasing refractive index to enhance total internal reflection and scattering to increase whiteness and opacity; doping of the TiO2 neutralises colour and reduces paint chalking. These advanced nanoscale coated materials are a new direction for a long-term partnership between the CI and KIP in materials development. The laboratory- to pilot-scale manufacturing extension will enable high-volume use in paints generating significant economic and environmental outcomes.