Abstract
Talc, with different particle sizes, was incorporated to improve flame resistance properties of UV-curable talc/acrylate composite flam-retardant coating at different contents via mechanical blending. Hardness, transmittance, haze, cross-cut adhesion and abrasion resistance results showed that the mechanical and thermal properties of the coatings improved effectively with no comprising on optical properties by adding Talc. The flame retardancy of the UV-curable coatings was investigated by thermogravimetric analysis (TGA) and Microscale Combustion Calorimeter (MCC). The results showed that the incorporation of Talc into the organic network led to an improvement in the thermal stability and flame retardancy of the coating materials. When talc content increased from 0 to 30 wt%, the peak heat release rate (PHRR) decreased from 191.1 W/g to 130.6 W/g, and the total heat release(THR) droped from 17.0 kJ/g to 11.1 kJ/g.
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