The finished polyester fabric with hot NH4OH pretreatment and mixed ZnO-Zn(OH)2 nanoparticles for hydrophobic property

Abstract

This work aims to modify the hydrophobic coated polyester fabrics using 2%w/v ammonium hydroxide (NH4OH) at 90℃ prior and subsequently dipped in two difference aqueous zinc solution batchs containing 0.6%w/v zinc precursors with/without starch and NH4OH, finally dehydration, and characterized by the attenuated total reflection - Fourier transform Infrared (ATR-FTIR) and Raman spectroscopy (Raman), X-ray diffraction (XRD), Field emission scanning electron microscope (FE-SEM), Energy dipersive spectrometry (EDX), and Water contact angle (WCA) of 10 mL dropping at 23℃ and humidity of 63%. Raman spectra and XRD patterns results showed e-zinc hydroxide (e-Zn(OH)2), zinc oxide nanoparticle (ZnO NP) and ZnO-starch nanocomposite crystallized in the orthorhombic and hexagonol wurzite structure, respectively. The increasing intensities of Raman vibrational modes at 369 cm-1 and 750 cm-1 confirmed the increased of e-Zn(OH)2 content with additional starch, therefore, WCA trend of those finished fabric surfaces decreased. WCA optimum of 138° before washing and 136° after 5 washing cycles of the treated fabric which was activated by NH4OH acts as scourer and also as promoter of e-Zn(OH)2/ZnO NPs as revealed from ATR-FTIR result. While, other observed lower hydrophobic property after 5 washing cycles due to the hydroplilic ZnO-starch nanocomposite.e-Zn(OH)2/ZnO NPs. While others, there were observed lower hydrophobic property after 5 washing cycles due to the hydroplilic ZnO-starch nanocomposite.

Modification of poly(ethylene terephthalate) fibers, fabrics, and films by amination reactions—A review

“…In the subject of aminolysis of PET for improvement of properties of textiles, the researchers claimed that some properties of PET fibers or fabrics were improved. Either treated solely with amines, 32,43–58 or treated with a proper modifier 59–84 . Interesting properties were endowed to the samples mostly on a laboratory scale.…”

“…In several interesting research, the samples of PET products were first treated with amines and, for the specific applications, modified with proper modifiers. The results of these researches are collected in Table 2 59–84 …”