Preparation and characterization of dual-functional coatings of nanofibrillated cellulose and modified SrAl2O4: Eu, Dy phosphors

The SrAl2O4: Eu2+, Dy3+ particles after SiO2 and APTMS-coated modification yielded a nano-scaled layer with amine groups and formed a stable suspension with ONFC by electrostatic adsorption and hydrogen bond without destroying their crystal structures. The modified particles with a cross-linked ONFC/BTCA skeleton made the surface a long afterglow property and created adequate surface roughness for FOTS modification. The dual-functional hybrid coatings showed good translucency and had less effect on the apparent color of the wood after coating process.306