4 edition of Surface Modification of Polyester by Alkaline Treatments (Textile Progress) found in the catalog.
Surface Modification of Polyester by Alkaline Treatments (Textile Progress)
S. Haig Zeronian
by North Carolina State University
Written in English
|The Physical Object|
|Number of Pages||34|
Alkali treatment is one of the simplest and most effective surface modification techniques which is widely used in natural fiber composites [2,3]. In the present study, both untreated and alkali treated short fibers (After grinding) were used as reinforcement in unsaturated polyester resin composites. Surface hydrophobicity of poly (lactic acid) have raise the concerns of surface incompatibility of PLA to function as biomaterial. Thus, various approaches have been made to improve the surface hydrophilicity of PLA. In the present paper, PLA materials were surface modified by alkaline hydrolysis. The indication of the reduction in water contact angle value, from 65 ̊ to 50 ̊ and 15 ̊, in 0.
An exploration of the surface characteristics of fibres and textiles. It emphasizes how fibre surface affects permeability, stiffness, strength, dyeing, wrinkling, and other performance characteristics to optimize production. It also illustrates methods for developing wrinkle-resistant finishes on fibre surfaces using environmentally friendly techniques. treatment fabrics were washed according to ISO Keywords: PET fabric, surface modification, EDA, UV protection 1. INTRODUCTION Alkaline hydrolyses of polyester fabric causes modification to the surface of the hydrophobic fibers from which the fabric is woven, which can improve comfort and other fabric properties . It was.
Surface modification of abaca fibers by permanganate and alkaline treatment via factorial design AIP Conference Proceedings , ( “ Effect of Fiber Chemical Modification on the Abaca Fiber Reinforced Unsaturated Polyester Matrix Composite ”, MS Thesis, University of the Philippines (March ). Titanium Dioxide Particle-induced Alkaline Degradation of Poly(ethylene Terephthalate): Application to Medical Textiles Show all authors. Mashiur Rahman Surface Modification of Polyester By Alkaline Treatments. Textile Progress, 20(2), (). Google Scholar | Crossref. Maillo, J., Gacen, J., and Naik, A., Melliand Textilberichte.
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(). SURFACE MODIFICATION OF POLYESTER BY ALKALINE TREATMENTS. Textile Progress: Vol. 20, No. 2, pp. Cited by: Buy Surface Modification of Polyester by Alkaline Treatments by S.H. Zeronian, M.J. Collins from Waterstones today. Click and Collect from your local Waterstones. In this study, surface modification via low-temperature plasma application (chemical modification of polyester fabrics with alkaline treatment and the.
Zeronian, S.H. and Collins, M.J. Surface Modification of Polyester by Alkaline Treatment Textile Prog., (), modification of PET fibre properties is through strong alkaline treatment under high processing temperature. Alkaline finishing of polyester fabric with sodium hydroxide changes fabric weight, strength, wettability and aesthetics Altering the surface characteristics of polyester is rather difficult due to its inactive chemical Size: KB.
By alkaline hydrolysis, surface hydrophilicity and feel of the fabric are considerably improved, whereas such properties as moisture regain, crease recovery angle, etc., remain practically unchanged.
Attempts have been made to explain the results in terms of modifications in the surface characteristics of Surface Modification of Polyester by Alkaline Treatments book fabrics.
Alkali deweighting is the most commonly used method for PET surface modification in industry because of its low cost. However, the wastewater causes enormous damage to the environment. Recent studies have reported a new way for surface modification of synthetic polymers: enzymatic treatment.
Enzymes are catalysts for reactions with high selectivity and specificity in mild conditions. The surface modification of textiles may be achieved by various techniques ranging from traditional solution treatment to biological approaches.
This book reviews fundamental issues relating to textile surfaces and their characterisation and explores the exciting opportunities for surface modification of a range of different textiles. The optimal treatment conditions for lipase were determined to be a pH ofa temperature of 50 °C, a lipase concentration of %, and a treatment time of 90 min; those for cutinase were determined to be a pH ofa temperature of 50 °C, a cutinase concentration of %, and a treatment time of 60 min.
Polyester is a widely used and useful material. Its usefulness extends into the medical field, where its strength is maintained in implanted devices and materials: it is biodurable. In both medical. An Investigation of Alkaline Hydrolysis Treatments of Polyester Fabric Using SEM, IR Spectroscopy and TGA, Book of Proceedings of 3rd ITCDC -Magic World of Textiles, surface modification of polyester fabric Alkali treatment The alkaline hydrolysis of polyester where the alkali reacts with the polyester to form another compound.
Laser treatment Laser induced surface modification of polymers provides a unique and powerful method for the surface modification without any changes in their bulk properties. CHAPTER 9 MODIFICATION OF POLYESTER COTTON WEFT KNITTED FABRICS BY ALKALI TREATMENT INTRODUCTION In the last few years there has been increasing interest in the surface modification of poly (ethylene terephthalate) whose use is quite wide spread in the textile industry with an annual production 36 million tons, (Guebitz and Cavaco - Paulo.
Improvement of polyester properties using a novel technology involving enzymatic surface modification of polyester was investigated. The enzyme, polyesterase, is a serine esterase.
surface. Alkali-treatment in organic solvent medium: Treatment of polyester fabric was carried out with a mixture of % sodium hydroxide in ethanol, squeezed to 50% pick up and then stored after covering it with a nylon film at room temperature for 24 hours (19). There was a loss in weight of 21% of treated fabric and the fabric achieved uniform.
Alkali and plasma treatments of polyester generate a more hydrophilic fibre surface by forming new carboxyl and hydroxyl groups. Under alkaline washing conditions, the carboxyl structures become anionic carboxylate groups, giving rise to a high electrostatic repulsion of the negatively charged soil particles, both in pure form and those enclosed in anionic surfactant micelles.
The XPS survey spectrum of untreated PVdF is shown in Fig. 1, and that of PVdF after 48 h treatment in 12 M NaOH at 80°C is shown in Fig. spectrum of the treated material has a higher level of noise; this phenomenon is a result of the change in surface roughness produced on treatment as a result of the formation of a new topography.
Furthermore, subtilisin treatments, like all enzymatic treatments in wet processing, have proven to be dynamic and sustainable.
In thubtilisin is work, s hydrophilic surface modification of polyamide 6,6 fabrics was investigated and compared to the prevalent alkaline treatment method.
The aim was to. Catalyzation of Alkaline Hydrolysis of Polyester by Oxidizing Agents for Surface Modification. The alkaline treatment of polyester fabrics was carried out using a high. The alkaline treatment modifies the surface of fibers by removing a certain rate of lignin, hemicellulose, wax, and oils covering the external surface of natural fibers .
For example, in the fibers of hemp, the alkaline treatment completely eliminates pectin without a residue, but the remaining lignin depends on the concentration of NaOH .
Alkaline hydrolysis causes pitting of the surface of polyester (PET) fibers and films and improves their wettability, as indicated by contact angle measurements. The enhanced wettability is due to an increase in either the number or the accessibility of polymer hydrophilic groups to water and/or an increase in the roughness of sample surfaces.Montazer, M, Sadighi, A.
Optimization of the hot alkali treatment of polyester/cotton fabric with sodium hydrosulfite. J Appl Polym Sci ; – Google Scholar | Crossref | ISI.Surface modification of synthetic fibers to improve performance: Recent approaches. surface in polyester fabric and c hange its prop.