Evaluation of the equilibrium sorption characteristics of textile fibres

Teploukhova, M. V.; Perepelkin, K. E.; Kynin, A. T.; Смирнова, Н. А.; Koitova, Zh. Yu.

doi:10.1007/bf00572798

Cited by 5 publications

(4 citation statements)

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“…Although the interaction between water and various types of common textile fibre (and the polymers from which they are derived) has received substantial attention (eg, 8,[22][23][24][25][26][27][28][29][30] ), the paucity of publications relating to water/ PET fibre interactions can be attributed to the fact that the distinctly hydrophobic substrate characteristically adsorbs very small amounts of water owing to the their high crystallinity and orientation (Table 1).…”

Section: Water-pet Polymer Interactionsmentioning

confidence: 99%

The roles of polymer relaxation phenomena, aqueous dye solubility and the physical properties of water in the mechanism of adsorption of a disperse dye on poly(ethylene terephthalate) fibres: Part 3 physical properties of water and water‐derived fibre properties

Burkinshaw

Liu

2022

Coloration Technology

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In the absence of published information regarding the temperature dependency of water‐derived poly(ethylene terephthalate) fibre properties, the findings reported for the thermally regulated interactions between water and 100% amorphous poly(ethylene terephthalate) materials were interpreted from the perspective of the amorphous domains that reside within semi‐crystalline polyester textile fibres. This analysis suggests that the pronounced temperature dependent uptake of a commercial grade disperse dye on poly(ethylene terephthalate) fabric achieved during an aqueous dyeing process at temperatures between 30 and 130°C is the likely result of the combination of three separate, but inherently inter‐related, thermally activated phenomena, namely, polymer structural relaxation, in which polymer glass transition assumes a dominant role, dissolution of disperse dye in the aqueous dyebath, as well as various water–fibre interactions, in the guise of water sorption, water molecule diffusivity, water‐induced swelling and water‐induced plasticisation. Although thermally regulated macromolecular relaxation processes adopt the principal role in dye uptake, temperature dependent dye solubility and water‐derived fibre properties nevertheless likely provide crucially important supportive roles.

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Section: Water-pet Polymer Interactionsmentioning

confidence: 99%

The roles of polymer relaxation phenomena, aqueous dye solubility and the physical properties of water in the mechanism of adsorption of a disperse dye on poly(ethylene terephthalate) fibres: Part 3 physical properties of water and water‐derived fibre properties

Burkinshaw

Liu

2022

Coloration Technology

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“…The instinctive ability of all common types of textile fibre to adsorb water, swell and undergo plasticisation can be attributed to a particular, fibre-specific level of hydrophilicity, which is a corollary of both the physical and chemical characteristics of the fibre, as exemplified by the type and number of polar hydrophilic groups, degree of crystallinity, orientation, etc. 55 However, while the nature of the interactions that occur between water and fibres, as well as the polymers from which they are derived, has attracted substantial attention from the viewpoint of the wet processing of textile materials, 55,222,[368][369][370][371][372][373][374] curiously, the topic of water/ fibre (and water/polymer) interactions has, by contrast, garnered very little interest from the perspective of the immersion dyeing process: disappointingly, the role of water in exhaust dyeing processes has been the subject of even less scrutiny (see the discussion in 55 ). Unfortunately, in the case of water/PET fibre/polymer interactions, as mentioned, there is an unfortunate paucity of published information regarding fundamental water-PET fibre interactions, especially in the case of the temperature dependency of such interactions.…”

Section: Water Sorption Propertiesmentioning

confidence: 99%

“…However, while the nature of the interactions that occur between water and fibres, as well as the polymers from which they are derived, has attracted substantial attention from the viewpoint of the wet processing of textile materials, 55,222,368–374 curiously, the topic of water/fibre (and water/polymer) interactions has, by contrast, garnered very little interest from the perspective of the immersion dyeing process: disappointingly, the role of water in exhaust dyeing processes has been the subject of even less scrutiny (see the discussion in 55 ). Unfortunately, in the case of water/PET fibre/polymer interactions, as mentioned, there is an unfortunate paucity of published information regarding fundamental water–PET fibre interactions, especially in the case of the temperature dependency of such interactions.…”

Section: Pet Fibresmentioning

confidence: 99%

The roles of elevated temperature and carriers in the dyeing of polyester fibres using disperse dyes: Part 1 fundamental aspects

Burkinshaw

2023

Coloration Technology

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This review concerns the application of disperse dyes to poly(ethylene terephthalate) fibres using aqueous immersion dyeing processes and the roles of both elevated dyeing temperatures and carriers in such dyeing systems. This part of the paper presents a review of the fundamental properties and characteristics of poly(ethylene terephthalate) fibres, disperse dyes and dyeing accelerants. In the next part of the paper, the various theories and concepts which have been proposed to explain the promotional effects imparted by elevated dyeing temperatures and carriers to disperse dye uptake on PET and other types of fibre, are reviewed and analysed, from the viewpoints of the essential physico‐chemical aspects of both the aqueous disperse dye/PET and disperse dye/carrier/PET systems. The final part of the paper will present a dual‐mode mechanistic model of the disperse dye adsorption process which can be used to account for the promotional effects imparted by both elevated dyeing temperatures and dyeing accelerants on disperse dye uptake.This article is protected by copyright. All rights reserved.

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“…There has been no generalization and analysis of the sorption data using existing mathematical models for these fibres [8][9][10].…”

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confidence: 99%

Sorption of water vapors by high-strength para-aramid fibres

2007

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677.494.675.66.081 and N. P. LebedevaThe water vapor sorption isotherms were measured for different types of high-strength fibres based on carbocyclic and heterocyclic para-aramids: Rusar (copolymers of amidobenzimidazole and p-phenylene terephthalamide), Twaron and Kevlar (poly-p-phenylene terephthalamide), and for comparison, capron (polycaproamide). The parameters of the thermal sorption equation and the thermodynamic characteristics of sorption of water vapor were calculated with previously obtained sorption data with the previously developed theoretical-probability model of sorption. A correlation was found between the integral heat of sorption in amorphous regions of para-aramid fibres and the specific cohesive energy.The para-aramid fibres and filaments created at the end of the last century have been widely used for fabricating highload, low-deformation textile articles, high-strength composite materials, and rescue and occupational safety equipment whose performance and storage frequently involve moisture. Sorption of moisture by fibres affects the physicomechanical and performance properties of fibres and materials made from them [1-3]. As a result of sorption of water vapors, plasticization, changes in the structure and properties of the fibres which are a function of the molecular structure, number of polar and functional groups, and the accessibility in amorphous regions of the structure, as well as the effect of the external conditions (temperature, partial water vapor pressure, exposure time), take place.However, an analysis of the literature showed that the sorption properties of high-strength para-aramid fibres have been insufficiently investigated and the available data are somewhat contradictory [4][5][6][7]. There has been no generalization and analysis of the sorption data using existing mathematical models for these fibres [8][9][10].We investigated the sorption properties of the basic types of high-strength para-aramid fibres as a function of the relative humidity. The experimental data were processed with a theoretical-probability model of sorption of vapors of lowmolecular-weight substances by polymer materials [11,12] and the heat effects and change in the thermodynamic functions in sorption of water vapor by para-aramid fibres were also calculated.Sample of domestic and foreign para-aramid fibres provided by the manufacturers were investigated. The characteristics of the objects investigated are reported in Table 1.Before measuring the sorption, the fibre samples were extracted with carbon tetrachloride to remove the oiling agent and dried to a constant weight at a temperature of 108±2°C. Equilibrium sorption of water vapor was measured by the isopiestic method and relative humidity was measured in the desiccators was created above saturated solutions of salts [13]. The desiccators were thermostated at 298 K. Equilibrium sorption values were established for 5-6 weeks.The water vapor sorption isotherms obtained in the study were S-shaped (Fig. 1), characteristic of amorphous and amorp...

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Evaluation of the equilibrium sorption characteristics of textile fibres

Cited by 5 publications

References 0 publications

The roles of polymer relaxation phenomena, aqueous dye solubility and the physical properties of water in the mechanism of adsorption of a disperse dye on poly(ethylene terephthalate) fibres: Part 3 physical properties of water and water‐derived fibre properties

The roles of polymer relaxation phenomena, aqueous dye solubility and the physical properties of water in the mechanism of adsorption of a disperse dye on poly(ethylene terephthalate) fibres: Part 3 physical properties of water and water‐derived fibre properties

The roles of elevated temperature and carriers in the dyeing of polyester fibres using disperse dyes: Part 1 fundamental aspects

Sorption of water vapors by high-strength para-aramid fibres

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