Development of Pilot Scale System for Production of Polyamide-6 Fibers Grafted With Polymethacrylic Acid For Ion Exchange Applications

Shalaby, S. E.; Ola, Samiha Mohamed Abo El; Al-Balakocy, Naser Gad; bilyakova, margrita; Abas, Rafaat

doi:10.21608/ejchem.2018.3631.1301

Cited by 6 publications

(2 citation statements)

References 14 publications

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“…The effect of adsorption parameters such as pH, duration, initial ion concentration and the adsorption temperature on the degree of extraction (R%) and adsorption capacity (SC mg/g) was calculated. The grafted fibers showed high efficiency for adsorption of Cu 2+ , Pb 2+ as cations and SO 4 -2 , Cr 2 O 7 -2 as anions [8,9]. The present work aims to use bench scale sorption and column runs to assess:…”

Section: Introductionmentioning

confidence: 99%

Assessment of the produced grafted nylon-6 non woven fabrics as ion-exchangers in wastewater treatment

Shalaby¹,

Al-Balakocy²,

El-Olaa³

et al. 2019

Desalination and Water Treatment

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The present work aims to assess: (a) The effectiveness of nylon nonwoven fabrics containing antimicrobial substance and grafted with PMAA, PDMAEMA and the blended fabric containing the above mentioned two types of nonwoven fabrics for metal ions (Cu 2+ , Pb 2+) and chromate (Cr 2 O 7) 2recovery from wastewater; (b) The amount of the ion-exchanger used; and (c) The desired quality of product water (breakthrough point) on the operating capacity of textile under investigation. The main objective of this study is to investigate the possibilities of the final effluent in order to comply with the National Environmental Regularity standard for wastewater discharge into the public sewage network. The Cu 2+ and Pb 2+ removal efficiency by the above mention textile types was studied by batch adsorption and column runs methods. It was found, in case of applying batch adsorption method that, the maximum removal of Cu 2+ (92%) takes place when nylon grafted with PMAA nonwoven fabric was used. The application of blended nonwoven grafted with PMAA and PDMAEMA fabric paves the way for high sorption (79%) of Cu 2+ from wastewater. The Cu 2+ removal with grafted with PDMAEMA nonwoven fabric slightly increased relative to control fabric. The maximum ion removal % of Pb 2+ (80-82%) was attained upon using all three types of grafted textiles, irrespective of the types of grafted polymer. Column method was used for determination of Cu 2+ and Pb 2+ removal efficiency by using the three types of grafted nylon-6 nonwoven fabrics. The copper and lead free effluents, breakthrough points and breakthrough capacities for the ion-exchangers under investigation were obtained Chromate removal efficiency by using Nylon non woven antimicrobial fabrics grafted with PDMAEMA was studied. For this anion exchanger fabric chromate free effluent, chromate breakthrough point and breakthrough capacity were also obtained.

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Section: Introductionmentioning

confidence: 99%

Assessment of the produced grafted nylon-6 non woven fabrics as ion-exchangers in wastewater treatment

Shalaby¹,

Al-Balakocy²,

El-Olaa³

et al. 2019

Desalination and Water Treatment

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“…The linear density of the pure polyamide‐6 fiber is 14 denier and polyamide‐6 grafted with PMMA fiber is 18 deniers. During the preparation of the grafted polyamide‐6, PMMA was washed with 5% NaOH and water, then dried with anhydrous sodium sulfate and distilled under reduced pressure in nitrogen before use (Shalaby, Abo El‐Ola, Al‐Balakocy, Bilyakova, & Abas, 2018). The cross‐sectional shape of pure polyamide‐6 sample has a circular shape.…”

Section: Methodsmentioning

confidence: 99%

FECO fringes for investigating the effect of grafting process on the dispersion properties of polyamaide‐6 fibers

Sokkar

El‐Bakary

Sewidan

et al. 2021

Microscopy Res & Technique

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Polyamide-6 fiber was modified by grafting it with poly(methyl methacrylate) PMMA polymer. The grafting process is widely used in industry to introduce new properties and overcome some obstacles, for instance, in storing energy applications. Multiplebeam interference techniques are very precise techniques to characterize the different properties of polymeric fibers. Fringes of equal chromatic order FECO technique was used to study the effect of grafting process on the dispersion properties of polyamides fibers. A mechanical drawing device was attached to the FECO system to evaluate the mechanical deformation impact on the samples and on their dispersion properties. The dispersion properties were evaluated by measuring their refractive indices, Cauchy's constants, average excitation energy, dispersion energy, lattice energy, interband oscillator wavelength, static dielectric constant, and Abbe's dispersion number. The results show that grafting polyamide-6 with PMMA produced a new material with a different structure and different dispersion properties. Microinterferograms, graphs and tables were given for illustrations.

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Interferometric analysis of the opto‐mechanical properties for polyamide‐6 antimicrobial fibers

El‐Bakary,

Sadik,

Ahmed

2024

Polymer Engineering & Sci

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Polyamide‐6 fibers were modified for use as antimicrobial fibers using two complementary methods: grafting with polyacrylic acid and silver nanoparticle treatment. The grafted samples exhibited different grafting yields of 7%, 8.8%, 10%, and 20.7%. Subsequently, two grafted samples (7% and 20.7% yields) were treated with silver nanoparticles (Ag NPs). The grafting process and the silver nanotreament were successfully confirmed using FTIR spectroscopy and SEM microscopy. Shake‐ flask method was used to study the cell viability of nanotreated samples. A two‐beam Mach–Zehnder interferometer was used to characterize the opto‐mechnaical and structural properties of the modified samples. For this purpose, a mechanical drawing device was equipped with the interferometer. The results indicated that with increasing grafting yield, optical properties decreased in both directions of light vibration. A fitting method was employed to calculate intrinsic optical properties that help to determine structural properties. Mechanical properties, including tensile strength and elongation at break, were also examined. Treatment of the grafted samples with silver nanoparticles improved their optical, mechanical, and antimicrobial properties. These findings confirmed that the PA‐6‐g‐PAA 20.7%‐t‐Ag NPs sample is suitable for various medical applications. Figures and tables are provided for illustration.Highlights PA‐6 fiber has been modified for medical applications by complementary processes. Grafting process introduced additional functional groups and enhanced ductility. Ag nano‐treatment gives the grafted PA‐6 fiber good antimicrobial activity. Interferometry precisely characterizes structural and opto‐mechanical properties. PA‐6‐g‐PAA20.7%‐t‐Ag NPs sample has good mechanical and antimicrobial properties.

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Development of Pilot Scale System for Production of Polyamide-6 Fibers Grafted With Polymethacrylic Acid For Ion Exchange Applications

Cited by 6 publications

References 14 publications

Assessment of the produced grafted nylon-6 non woven fabrics as ion-exchangers in wastewater treatment

Assessment of the produced grafted nylon-6 non woven fabrics as ion-exchangers in wastewater treatment

FECO fringes for investigating the effect of grafting process on the dispersion properties of polyamaide‐6 fibers

Interferometric analysis of the opto‐mechanical properties for polyamide‐6 antimicrobial fibers

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