Part of #Synthesia and Characterization of Novel Cationic Urethance Gemini Surfactant as Deinking Agent# :
Publishing year : 2012
Conference : Third Conference on Science and Technology of Surface active Materials and Detergents
Number of pages : 6
Abstract: In this research, we have synthesized a novel cationic urethane Gemini surfactant (CUGS) as a deinking agent in three steps. At the first, the hyrophobically ethoxylate urethane with a tertiary aniline terminal group was prepared from lauryl alcohol 7mole ethoxylate (LA7EO), N, N-dimethylethanolamine (DMEA) and hexamethylene diisocyanate (HDI) in the presence of dibutytin dilaurate (DBTDL) as a catalyst and acetone As a reaction solvent. In the second step, the CUGS was synthesized by quaternizing the tertiary amine terminal group of hyrophobically ethoxylate urethane by 1,8-diboromoctane. Finally, the acetone was removed by a vacuum oven. The CUGA was characterized by H-NMR and FT-IR. The CUGS was investigated as a deinking agent. In this study, a commercial polyethylene film with water-based printing ink was deinked using cationic surfactant dodecylmethylammonium bromide (DTAB) and CUGS as a novel cationic gemini surfactant. Solutions of CUGS have been the most effective at deinking and have been shown to be highly effective at high pH levels. Deinking of CUGS is more effective than DTAB.