The effects of several operative parameters on the grafting of selected grafting agents on a polyamide six (PA6) fiber surface.

The previous research showed the anti-biofouling improvement of the polyamide six (PA6) fiber when grafted by 2-hydroxyethyl methacrylate (HEMA) individually, and in combination with acrylic acid (AA) known as dual monomers system. The effects of several operative parameters, including vessel reaction temperature and time, ultra violet (UV) pre-irradiation time, and also HEMA-AA mole ratios (for dual system) on the surface grafting of a PA6 fiber by HEMA and also, dual HEMA-AA system were studied. The studied grafting parameters were grafting degree (), grafting efficiency (), formed homo and or co-polymer (), reaction extent (), and reaction ratio ().

The effect of the surface coating of a strontium mono-aluminate europium dysprosium-based (SrAlO:Eu,Dy) phosphor by polyethylene (PE), polystyrene (PS) and their dual system on the photoluminescence properties of the pigment.

SrAlO:Eu,Dy as a known strontium mono-aluminate europium dysprosium-based phosphor is widely used in paints and coating formulations as a photoluminescence pigment. It has two major drawbacks: improper dispersion in organic-based paints and weak water and moisture resistance. To address the above-mentioned drawbacks, the surface coating of phosphors with polyethylene and polystyrene individually and in combination using a solution technique was performed.

The Study on Titanium Dioxide-Silica Binary Mixture Coated SrAlO: Eu, Dy Phosphor as a Photoluminescence Pigment in a Waterborne Paint.

After proper stimulation, long afterglow phosphors formulated as pigment in waterborne paints can emit light after the removal of the excitation light source. The encapsulation of SrAlO: Eu, Dy phosphor by TiO2 and SiO2 individually, and in combination by a precipitation method was studied. The water resistance and photoluminescence behavior of the coated phosphors as a pigment for potential use in waterborne photoluminescence paints were evaluated.