Preparation of Selective Ion Adsorbent by Photo-Curing of HEMA and Phosphoric Acid on PET Yarn

摘要

Poly(ethylene terephthalate) PET yarns were cured with 2-hydroxyethyl methacrylate (HEMA) and phosphoric acid (PA) using UV radiation. Concentration of HEMA, soaking time, intensity of UV radiation and concentration of PA were optimized based on polymer loading (PL). It was found that the formulation containing 8% PA, 50% HEMA, 40% Methanol, 2% Photoinitiator (PI) showed maximum 114% of PL. The grafted yarns were then soaked in CuSO₄ solution for 30-300Â mins at different conditions. After withdrawing the yarns, the remaining copper in the solution were measured. It was revealed that copper was successfully adsorbed by using the grafted PET yarns.