Abstract
Abstract New SA/TDI/PEG adducts were prepared by reacting mixture of stearyl alcohol (SA) and polyethylene glycols (PEG’s 400, 1000, 2000, and 6000 Da) with 2,4-toluene diisocyanate (TDI). The optimum conditions of synthesis reaction are: PEG/SA, 20%; TDI/SA, 20%; reaction temperature, 100 °C and reaction time, 90 min. The potential application of such prepared adducts as water repellent finishes for cotton/PET fabric was examined by incorporating of 40 g/l of these adducts emulsions in different easy-care finishing formulations. Results obtained indicated an enhancement in both the water repellency as well as softness properties along with stiffness properties of treated fabric. FTIR analysis confirms the SA/TDI/PEG1000 adduct chemical structure while the TEM image of its emulsion shows that the emulsion of particle size ranges from 2 to 54 nm. Moreover, the surface of SA/TDI/PEG1000 adduct treated fabric was characterized via scanning electron microscope (SEM). Except for SA/TDI/PEG400 adduct, the prepared adducts treated fabric show durability to washing up to 10 washing cycles.
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