Wyniki wyszukiwania - BazTech

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Optimisation of fragrance finishing on cotton by grafting of β-cyclodextrin based microcapsules: Application of the experimental design methodology

Ben Abdelkader Maroua, Aziz Nedra, Bordes Claire, Majdoub Mustapha, Chevalier Yves

Materials Science Poland

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2021

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Vol. 39, No. 4

555--569

EN

The grafting reaction of β-cyclodextrin-based microcapsules containing neroline onto pure cotton jersey knitted fabric is studied. The influence of the concentrations of microcapsules, citric acid (CA) crosslinking agent and catalyst on the fabric mass gain was studied to determine the optimum operating conditions. For this purpose, an experimental design based on response surface methodology (RSM) was used leading to the development of a predictive statistical model. The optimal grafting conditions were thus determined: 107.6 g ⋅ L−1 for microcapsules concentration, 111.9 g ⋅ L−1 for CA concentration and 50 g ⋅L−1 for disodium hydrogen phosphate (DHP) catalyst concentration (CAT). Morphology, tensile properties, air permeability and washing fastness of finished textile were studied to evaluate the effectiveness of the optimised grafting process.

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Effect of grafting parameters on the strength of modified polyamide yarn

Bucheńska J.

Zeszyty Naukowe. Włókiennictwo / Politechnika Łódzka

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2000

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z. 58

285-292

EN

The aim of the present paper was to examine the mechaical properites such as linear density, tenacity and elongation of grafted polyamide yarn designed for antibacterial surgical threads in order to answer the question whether the adopted method of fibre modification is suitable for that specific application.

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Effect of grafting bath parameters on the linear density of polyamide filament yarn

Bucheńska J., Adamska M.

Zeszyty Naukowe. Włókiennictwo / Politechnika Łódzka

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2000

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z. 58

277-284

EN

One of the current trends towards the modification of textile fabric properties is the proces s of grafting various polymers onto the fabrics. The changes in fibre properties depend on the type of monomer used and the grafting degree, i.e., on the amount of the new polymer added to the matrix of modified fibres. The process is effective, but it is possible that during the reaction resulting in new required properties, other irnportant properties may be deteriorated, for instance, the strength of fibres. The decrease in fibre strength during the modification process may be due to fibre degradation caused by the effects of the grafting parameters such as pH, temperature and time. During grafting the diameter of filaments is also changed as a result of the addition of a new polymer. This results in increased linear density of the modified filaments. In addition to the effect of the added polymer, the filament linear density is changed due to fibre shrinkage taking place during grafting due to the action of the process parameters. Hence the present study was aimed at the analysis of the linear density of modified polyamide filament yarn depending on the parameters of grafting such as temperature and time of the process, monomer concentration, degree of grafting and fibre shrinkage resulted from the grafting process.