Influence of grafting on structural and optical properties of nylon‐6 fibers

Seisa, E. A.

doi:10.1002/app.32207

Cited by 5 publications

(4 citation statements)

References 19 publications

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“…Results from microscopic photographs indicated that the fibers retained their morphology and shape well during the modification reactions though their diameters were greatly increased. The increased diameter was suggested to be due to the contribution of the grafted side chains 24, 25…”

Section: Resultsmentioning

confidence: 99%

Preparation and characterization of a novel strong‐base anion exchange fiber

Wang

Zhao

et al. 2012

J of Applied Polymer Sci

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A novel strong-base anion exchange fiber (QAPAN) was prepared in this study by preamination of a commercial poly(acrylonitrile) fiber followed by its subsequent grafting of glycidyl trimethylammonium chloride (GTA). The grafting conditions were optimized by conducting a L 18 (3 7 ) orthogonal test; and properties of the prepared QAPAN were investigated by multiple analyses. Results showed that the optimal reaction conditions were GTA dosage 4 mL, temperature 60 C, reaction time 6 h, and volume ratio of water to dimethyl sulfoxide (DMSO) 0.5 : 0.5, among which volume ratio of water to DMSO was deemed as the most important factor on the QAPAN preparation. The prepared QAPAN had excellent fibrous morphology and fine mechanical stability, making its further processing feasible. Acid-base titration tests showed that the QAPAN had a total exchange capacity (TEC) of 6.34 mmol/g and a strong base capacity (SBC) of 1.34 mmol/g. Analyses of Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy further verified that the quaternary ammonium group was successfully grafted onto the QAPAN. This study provided a novel strong-base anion exchange fiber as well as a simple and repeatable method for its preparation. V C 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 128: 934-940, 2013

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Section: Resultsmentioning

confidence: 99%

Preparation and characterization of a novel strong‐base anion exchange fiber

Wang

Zhao

et al. 2012

J of Applied Polymer Sci

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“…Hamza, Sokkar, El Farahaty, and El Dessouky () designed a heating device connected to a wedge interferometer and studied the influence of temperature on the optical and structure properties along the diameter of undrawn PP fibers. Seisa () studied, interferometrically, the influence of grafting rate on the change of diameter, refractive indices, and birefringence of nylon 6 fibers.…”

Section: Introductionmentioning

confidence: 99%

A modified formula for accurate determination of three‐dimensional birefringence of fiber using modified subfringe integration method

El‐Morsy

2019

Microscopy Res & Technique

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The development of the use of interferometric techniques in the study of the optical properties of materials encouraged many researchers to work on the derivation and development of the theoretical considerations and the equations used in the calculations of those properties. The form of these equations depends on the technique used and the cross section of the sample, and also on the method of calculating the optical path difference of light across the sample studied. A modified formula to calculate the three‐dimensional birefringence distribution of the fiber, without the need to determine the refractive indices of the fiber in the parallel and perpendicular directions, was presented. The phase distribution of the simulated and experiment interferograms was obtained using subfringe integration method. The results obtained from the new method were compared with the calculated results of a well‐known method (Z method) and the figures presented showed that the results of the two methods were close to each other.

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“…He determined the influence of the grafting degree on the moisture sorption, the swelling, and apparent activation energy of the modified fibers. Seisa investigated the change of optical properties and some structural properties of the nylon‐6 fibers due to graft copolymerization of polydiallyldimethyl ammonium chloride (PDADMAC) and polyacrylamide (PAA). The results reflected the suitable effect on the optical and structural properties of the grafted nylon‐6 fibers.…”

Section: Introductionmentioning

confidence: 99%

Study on the anti‐biofouling effects of the grafted polyamide 6 fibers by several vinyl chemicals

Saleh

Movahed

Attarbashi

2018

J of Applied Polymer Sci

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The biofouling is any non-desirable accumulation and growth of living matters on the material surfaces. Four grafting agents, Acrylic acid (AA), 2-hydroxyethyl methacrylate (HEMA), 2-dimethyl amino ethyl methacrylate (DMAEMA), and Methyl acrylate (MA) were grafted on a polyamide fiber (PA6) with two techniques "simultaneous UV irradiation and grafting" (SUVIG) and "pre-UV irradiation (PUVI). It revealed that all used grafting chemicals grafted on the PA6 fiber surface efficiently. The SEM micrographs showed that the surface of the ungrafted PA6 fiber was relatively smooth, but for the grafted fibers, they were coarse and the grafted chemicals distributed on the PA6 surface heterogeneously. The grafting of the used grafting agents on the PA6 fiber surface increased the glass transition temperature of the PA6 fiber. The grafting of the PA6 fiber altered its crystallinity depending on the type of the grafting agent. With except of the MA, the hydrophilicity of the grafted PA6 fibers was higher than the ungrafted PA6 fiber. The grafting efficiency percentages and degrees were remarkably higher for the PUVI technique when compared with the SUVIG technique. The results of the biological tests showed that the MA was a suitable grafting agent for increasing anti-biofouling property of the PA6 fiber.

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Influence of grafting on structural and optical properties of nylon‐6 fibers

Cited by 5 publications

References 19 publications

Preparation and characterization of a novel strong‐base anion exchange fiber

Preparation and characterization of a novel strong‐base anion exchange fiber

A modified formula for accurate determination of three‐dimensional birefringence of fiber using modified subfringe integration method

Study on the anti‐biofouling effects of the grafted polyamide 6 fibers by several vinyl chemicals

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