The Experts below are selected from a list of 12 Experts worldwide ranked by ideXlab platform
N A Ibrahim - One of the best experts on this subject based on the ideXlab platform.
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hybrids for finishing cotton fabric with durable handle performance
Journal of Materials Processing Technology, 2008Co-Authors: N A Ibrahim, M H Aboshosha, Z Elsayed, H M Fahmy, A HebeishAbstract:New poly(acrylic acid/epichlorohydrin) hybrids were prepared under different polymerization conditions and the proper hybrid was used as a stiffening agent or what may be called hand builder. The latter was incorporated in dimethyloldihydroxy ethylene urea (DMDHEU) finishing formulation and the onset of this on fabric performance as monitored by nitrogen content, wrinkle recovery angle, tensile strength, stiffness, dyeability, and Oily Stain release was studied. Durability of the new finish was also examined. Results disclose substantial improvement in fabric performance and imply that the hybrid in question acts as a durable hand builder through fixation via its hydroxyl groups within the DMDHEU finish which, in turn, is chemically bonded to cotton cellulose. Scanning electron microscopy of finished fabric revealed that this chemical bonding resulted in hybrid encapsulation, deposition and/or coating of fabric fibers.
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synthesis of peg tdi f6 adducts and utilization as water oil repellents and Oily Stain release finishes for cotton fabric
Polymer-plastics Technology and Engineering, 2005Co-Authors: M H Aboshosha, Z Elsayed, H M Fahmy, N A IbrahimAbstract:Abstract Four polyethylene glycol (PEG)/2,4-toluene diisocyante (TDI)/ perfluorinated aliphatic alcohols mixture (F6) adducts were prepared by reacting equimolar ratios of PEG (300, 600, 1000, or 2000), TDI, and F6 at 90°C for 90 min. All adducts, except that based on PEG 300 were water dispersible. These dispersions were used as water/oil repellent and Oily Stain release finishes for cotton fabric, via incorporation in a finishing bath containing DMDHEU. Factors affecting finishing process, using an adduct based on PEG 1000, such as DMDHEU concentration (0–60 g/l), adduct concentration (10–40 g/l), curing time (1–5 min), and temperature (140–170°C) were studied. Optimal performance properties of treated fabric, namely wrinkle recovery angle (WRA), %N, water/oil and Stain release ratings, tensile strength, and breaking extension, were obtained using a padding bath containing DMDHEU (50 g/l), the adduct (30 g/l), and MgCl2 · 6H2O2 (5 g/l), drying at 100°C/5 min and curing at 160°C/3 min. The inclusion of h...
A Hebeish - One of the best experts on this subject based on the ideXlab platform.
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hybrids for finishing cotton fabric with durable handle performance
Journal of Materials Processing Technology, 2008Co-Authors: N A Ibrahim, M H Aboshosha, Z Elsayed, H M Fahmy, A HebeishAbstract:New poly(acrylic acid/epichlorohydrin) hybrids were prepared under different polymerization conditions and the proper hybrid was used as a stiffening agent or what may be called hand builder. The latter was incorporated in dimethyloldihydroxy ethylene urea (DMDHEU) finishing formulation and the onset of this on fabric performance as monitored by nitrogen content, wrinkle recovery angle, tensile strength, stiffness, dyeability, and Oily Stain release was studied. Durability of the new finish was also examined. Results disclose substantial improvement in fabric performance and imply that the hybrid in question acts as a durable hand builder through fixation via its hydroxyl groups within the DMDHEU finish which, in turn, is chemically bonded to cotton cellulose. Scanning electron microscopy of finished fabric revealed that this chemical bonding resulted in hybrid encapsulation, deposition and/or coating of fabric fibers.
Monwar Hossain - One of the best experts on this subject based on the ideXlab platform.
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immobilization of lipase on woolen fabrics enhanced effectiveness in Stain removal
Biotechnology Progress, 2014Co-Authors: Jing Dong An, Darrell A Patterson, Steve Mcneil, Monwar HossainAbstract:The aim of this research was to examine the effectiveness of an enzyme in enhancing the cleaning effectiveness of woolen fabric without addition of any detergent. As a model enzyme, lipase from Pseudomonas fluoresces was immobilized onto a woolen cloth using a unique protocol that involved: chlorination of the wool, adsorbing a polyethyleneimine (PEI) spacer, adsorbing, and cross-linking with glutaraldehyde (GA) followed by adsorption of the lipase. It was determined that for this protocol, the immobilized activity was dependent on the GA solution pH and not on its concentration. The cloth exhibited excellent Oily Stain removal ability: after being Stained with olive oil and stored for 1 day in air at room temperature, the Oily Stain could be easily removed by 0.05 M pH 8.5 Tris buffer without any detergent addition. This enhanced cleaning was stable also over a period of one month. The activity of the cloth (based on activity assay) dropped considerably over just 15 days storage in air. This therefore likely indicates that the enhanced cleaning seen over an extended storage period may not require as high an enzyme activity. The activity of the immobilized lipase was also very stable when stored under near ideal conditions: when the immobilized cloth was stored in 0.05 M Tris buffer (pH 8.5) for more than 80 days in a refrigerator, more than 80% of the lipase activity remained. Overall, results indicate that this immobilization protocol is a promising step towards producing a woolen fabric with enhanced cleaning properties. © 2014 American Institute of Chemical Engineers Biotechnol. Prog., 30:806–817, 2014
M H Aboshosha - One of the best experts on this subject based on the ideXlab platform.
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hybrids for finishing cotton fabric with durable handle performance
Journal of Materials Processing Technology, 2008Co-Authors: N A Ibrahim, M H Aboshosha, Z Elsayed, H M Fahmy, A HebeishAbstract:New poly(acrylic acid/epichlorohydrin) hybrids were prepared under different polymerization conditions and the proper hybrid was used as a stiffening agent or what may be called hand builder. The latter was incorporated in dimethyloldihydroxy ethylene urea (DMDHEU) finishing formulation and the onset of this on fabric performance as monitored by nitrogen content, wrinkle recovery angle, tensile strength, stiffness, dyeability, and Oily Stain release was studied. Durability of the new finish was also examined. Results disclose substantial improvement in fabric performance and imply that the hybrid in question acts as a durable hand builder through fixation via its hydroxyl groups within the DMDHEU finish which, in turn, is chemically bonded to cotton cellulose. Scanning electron microscopy of finished fabric revealed that this chemical bonding resulted in hybrid encapsulation, deposition and/or coating of fabric fibers.
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synthesis of peg tdi f6 adducts and utilization as water oil repellents and Oily Stain release finishes for cotton fabric
Polymer-plastics Technology and Engineering, 2005Co-Authors: M H Aboshosha, Z Elsayed, H M Fahmy, N A IbrahimAbstract:Abstract Four polyethylene glycol (PEG)/2,4-toluene diisocyante (TDI)/ perfluorinated aliphatic alcohols mixture (F6) adducts were prepared by reacting equimolar ratios of PEG (300, 600, 1000, or 2000), TDI, and F6 at 90°C for 90 min. All adducts, except that based on PEG 300 were water dispersible. These dispersions were used as water/oil repellent and Oily Stain release finishes for cotton fabric, via incorporation in a finishing bath containing DMDHEU. Factors affecting finishing process, using an adduct based on PEG 1000, such as DMDHEU concentration (0–60 g/l), adduct concentration (10–40 g/l), curing time (1–5 min), and temperature (140–170°C) were studied. Optimal performance properties of treated fabric, namely wrinkle recovery angle (WRA), %N, water/oil and Stain release ratings, tensile strength, and breaking extension, were obtained using a padding bath containing DMDHEU (50 g/l), the adduct (30 g/l), and MgCl2 · 6H2O2 (5 g/l), drying at 100°C/5 min and curing at 160°C/3 min. The inclusion of h...
Z Elsayed - One of the best experts on this subject based on the ideXlab platform.
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hybrids for finishing cotton fabric with durable handle performance
Journal of Materials Processing Technology, 2008Co-Authors: N A Ibrahim, M H Aboshosha, Z Elsayed, H M Fahmy, A HebeishAbstract:New poly(acrylic acid/epichlorohydrin) hybrids were prepared under different polymerization conditions and the proper hybrid was used as a stiffening agent or what may be called hand builder. The latter was incorporated in dimethyloldihydroxy ethylene urea (DMDHEU) finishing formulation and the onset of this on fabric performance as monitored by nitrogen content, wrinkle recovery angle, tensile strength, stiffness, dyeability, and Oily Stain release was studied. Durability of the new finish was also examined. Results disclose substantial improvement in fabric performance and imply that the hybrid in question acts as a durable hand builder through fixation via its hydroxyl groups within the DMDHEU finish which, in turn, is chemically bonded to cotton cellulose. Scanning electron microscopy of finished fabric revealed that this chemical bonding resulted in hybrid encapsulation, deposition and/or coating of fabric fibers.
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synthesis of peg tdi f6 adducts and utilization as water oil repellents and Oily Stain release finishes for cotton fabric
Polymer-plastics Technology and Engineering, 2005Co-Authors: M H Aboshosha, Z Elsayed, H M Fahmy, N A IbrahimAbstract:Abstract Four polyethylene glycol (PEG)/2,4-toluene diisocyante (TDI)/ perfluorinated aliphatic alcohols mixture (F6) adducts were prepared by reacting equimolar ratios of PEG (300, 600, 1000, or 2000), TDI, and F6 at 90°C for 90 min. All adducts, except that based on PEG 300 were water dispersible. These dispersions were used as water/oil repellent and Oily Stain release finishes for cotton fabric, via incorporation in a finishing bath containing DMDHEU. Factors affecting finishing process, using an adduct based on PEG 1000, such as DMDHEU concentration (0–60 g/l), adduct concentration (10–40 g/l), curing time (1–5 min), and temperature (140–170°C) were studied. Optimal performance properties of treated fabric, namely wrinkle recovery angle (WRA), %N, water/oil and Stain release ratings, tensile strength, and breaking extension, were obtained using a padding bath containing DMDHEU (50 g/l), the adduct (30 g/l), and MgCl2 · 6H2O2 (5 g/l), drying at 100°C/5 min and curing at 160°C/3 min. The inclusion of h...
