This work has focused on developing eco-friendly treatments for modifying the fabric surface. Thus; we studied in details the effect of individual and combined uv\ozone and chitosan on wool and silk fabric samples. All the treated samples are characterized and evaluated by: i) Fourier transform infrared spectra with attenuated total reflection analysis (FTIR-ATR), ii) Performance properties, iii) Mechanical measurements, and iv) Dyeing characteristics using two different dye classes namely, reactive dye (C.I. Reactive Orange 69) and direct dye (C.I Direct Yellow 11) applied on both wool and silk samples modified with the above mentioned three techniques.
Preparation of effective membrane with special surface treatment for oil/water separation having promising future and low manufacturing cost. The suggested membrane was fabricated by a simple treatment via increasing the hydrophilicity of the cotton fabric surface. The cotton fabric was impregnated in poly(acrylic acid-co-N-methylol acrylamide), poly(AA-co-NMA), where NMA acts as bonding agent. Sodium hypophosphite (SHP) was added to the modification solution to enhance the bonding between the cotton fabric and the PAA.The modified fabric was thermally dried and cured at different temperatures. It was found that, the presence of 3.5% NMA and addition of 5% SHP to the modification solution then curing at 190 C gave the highest amount of bonded PAA to the cotton fabric. The success of the modification process was confirmed by scanning electron microscope, Fourier transformer infrared and the increase in the contact angle of the cotton fabric after modification. Furthermore, the prepared membrane was evaluated for oil (n-hexane, toluene, and petroleum ether)/water separation and also for heavy metal ions removal (Cd 2+ and Co 2+ ).Neutralization of the produced membrane with ammonium hydroxide resulting in a higher contact angle and consequently higher separation efficiency for oil/water mixtures and higher performance for heavy metal ions removal compared to the unneutralized one.
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