Synthesis and Application of New Silicone Based Water Repellents
Fahmy, H., Okda, H., elrafie, M., Hassabo, A., youssef, M. (2022). Synthesis and Application of New Silicone Based Water Repellents. EKB Journal Management System, 65(2), 499-507. doi: 10.21608/ejchem.2021.89016.4275
Hesham Fahmy; hager Okda; Mohamed elrafie; Ahmed Hassabo; mohamed adel youssef. "Synthesis and Application of New Silicone Based Water Repellents". EKB Journal Management System, 65, 2, 2022, 499-507. doi: 10.21608/ejchem.2021.89016.4275
Fahmy, H., Okda, H., elrafie, M., Hassabo, A., youssef, M. (2022). 'Synthesis and Application of New Silicone Based Water Repellents', EKB Journal Management System, 65(2), pp. 499-507. doi: 10.21608/ejchem.2021.89016.4275
Fahmy, H., Okda, H., elrafie, M., Hassabo, A., youssef, M. Synthesis and Application of New Silicone Based Water Repellents. EKB Journal Management System, 2022; 65(2): 499-507. doi: 10.21608/ejchem.2021.89016.4275

Synthesis and Application of New Silicone Based Water Repellents

Egyptian Journal of Chemistry
Article 51, Volume 65, Issue 2, February 2022, Page 499-507  XML PDF (476.9 K)
Document Type: Original Article
DOI: 10.21608/ejchem.2021.89016.4275
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Authors
Hesham Fahmy1; hager Okda email orcid 2; Mohamed elrafie1; Ahmed Hassaboorcid 2; mohamed adel youssef3
1Textile Research Division, National Research Center, Dokki, Giza 12622, Egypt
2National Research Centre (NRC), Textile Research Industrial Division (TRID), Pre-treatment and Finishing of Cellulose based Fibers Department (PFCFD), El-Behouth St. (former El-Tahrir str.), Dokki, P.O. 12622, Giza, Egypt
3Chemistry department, Faculty of science, Helwan University, Cairo, Egypt.
Abstract
Abstract
Water repellent finishes are highly needed to achieve water repellent clothing, home and technical textiles. In that regard, new CPS1000/TDI and CPS5000/TDI adducts were synthesized upon reacting monocarbinol terminated polydimethylsiloxanes (CPS) having molecular weight of 1000 or 5000 Da with 2,4-Toluene di-isocyanate (TDI) in a molar ratio of 2:1 respectively at 100 OC for 90 min. The chemical structure of CPS1000/TDI adduct was confirmed by the FTIR analysis. The synthesized adducts were dispersed in water using stearic acid/triethanol amine system to obtain water repellents. The TEM analysis confirmed that the particles size of such adducts emulsions is in the nano scale. Incorporation of that adducts emulsions in easy care finishing formulation of cotton/polyester (50/50) blended fabric imparts that fabric with multifunctional properties namely anti-crease, water repellency, and soft hand. The SEM images and EDX analysis of CPS1000/TDI adduct emulsion treated fabric were investigated.
Keywords
Keywords: Polydimethylsiloxanes; 2; 4-Toluene di-isocyanate; Water repellency; Cotton/polyester fabric; Textile finishing
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