The effects of zeolite molecular sieve based surface treatments on the properties of wool fabrics

Carran, Richard S.; Ghosh, A. K.; Dyer, Jolon M.

doi:10.1016/j.apsusc.2013.09.181

Cited by 34 publications

(30 citation statements)

References 56 publications

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“…This is also the pH at which the majority of wet-chemical functional treatments of cellulose are performed on an industrial scale without negatively affecting fabric surfaces. On the other hand, when zeolites from pH 4 baths were applied (adjustment by acetic acid), the dealumination of aluminosilicate particles was perceived to a minor extent, which was also reported by [18] when applying 5A zeolite molecular sieves on wool fabrics from a 2 wt % aqueous acetic acid solution. According to the theory, acid attacks the Al-O-Si framework during dealumination via H+ ions breaking down the zeolite structure and, thus, generating large amounts of silanol groups on the zeolite surfaces ( Figure 4) which could, in our case, interact with -OH groups of cellulose fibers or with the mDMDHEU crosslinking agent.…”

Section: Morphological and Chemical Characterisation Of Zeolite-modifmentioning

confidence: 60%

Thermal, Mechanical and Optical Features of Aluminosilicate-Coated Cotton Textiles via the Crosslinking Method

2018

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Abstract:The presented study focuses on the development of a pad-dry-thermofix functional coating process using a mixture of microporous aluminosilicate particles in diverse bath formulations to impart UV-ray-blocking, thermal stability and easy-care properties to the cotton fabric. The results of Scanning Electron Microscopy (SEM) and X-ray powder Diffraction (XRD) revealed the presence of three different types of zeolites within the examined sample, i.e., the largest amount being zeolite A, followed by the zeolite X, and the zeolite ZSM-5. The surface characterization results of zeolite-coated/cross-linked textiles provided evidence of acceptable UV-ray-blocking properties and increased thermal stability, as well as enhanced tensile strength and breaking tenacity without considerably decreasing the whiteness degree. Moreover, the dry crease recovery angle increased for the cotton fabric cross-linked via an mDMDHEU, and decreased significantly using 30 g/L zeolites negatively influencing qualitative values. TG/DTA results have proven the enlarged thermal stability of aluminosilicate-coated cotton, although combustion was not prevented.

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Section: Morphological and Chemical Characterisation Of Zeolite-modifmentioning

confidence: 60%

Thermal, Mechanical and Optical Features of Aluminosilicate-Coated Cotton Textiles via the Crosslinking Method

2018

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“…The broad signal between 3500–3300 cm −1 is due to the N−H stretching, whereas the signal at about 3100 cm −1 is due to the Fermi resonance between the first overtone of amide II and the N‐H stretching. Finally, signals between 2950–2850 cm −1 are attributable to the C‐CH 3 and C‐CH 2 symmetric and asymmetric stretching mode …”

Section: Resultsmentioning

confidence: 99%

“…Finally,s ignals between 2950-2850 cm À1 are attributable to the C-CH 3 andC -CH 2 symmetric and asymmetricstretching mode. [44] The FTIR/ATR spectrum of neat cotton fibers (C00) is reported in Figure 6B.T he main relevant signals are due to intermolecular H-bonding stretching of O-H and C-OH functional groups (at ca. 3330 cm À1 ), aliphatic C-H stretching (at 2906 cm À1 ), C-O stretching (at ca.…”

Section: Agnpsloading On the Natural Fibers And Physicochemicalc Haramentioning

confidence: 99%

Biopolymers from Composted Biowaste as Stabilizers for the Synthesis of Spherical and Homogeneously Sized Silver Nanoparticles for Textile Applications on Natural Fibers

et al. 2015

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The use of bio-based substances (BBS) obtained from composted biowaste as stabilizers for the production of silver nanoparticles (AgNPs) in substitution to citrate is investigated herein, evaluating the functionalization of natural fibers for textile antibacterial applications. The results obtained evidenced that BBS can substitute citrate as reducing/stabilizing agent in the synthesis, inducing a geometrical control (in shape and size) of the AgNPs. Two different substrates were selected (wool and cotton) and two dip-coating deposition techniques investigated. The release of AgNPs from the supports in water was evaluated under two different experimental conditions: 1) soaking (static conditions) for 7 and 15 days, simulating the contact with sweat, and 2) centrifugation (dynamic conditions), simulating a washing machine treatment. A wide physicochemical characterization was carried out to evaluate the effects of BBS on the morphology and stability of AgNPs suspensions as well as the functionalization effectiveness.

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“…Mineral nanomaterials such as zeolites have the potential to enhance moisture absorption, ultraviolet radiation, and antimicrobial protection, flame‐proofing, mechanical strength, dyeing capability, and also to increase skin comfort . However, there are few published reports on the use of zeolites for creating multi‐functional coatings on wool textiles …”

Section: Introductionmentioning

confidence: 99%

“…There are numerous types of zeolites available based on their size, framework structure, chemical compositions, and functionalities. In a previous communication, the surface of wool was modified with a micron‐sized zeolite molecular sieve 5A via breaking the chemical structure of zeolite particles using an acid treatment followed by coupling with a silane agent. The molecular sieve is a Na + and Ca 2+ ‐exchanged zeolite type A with a 1 : 1 Si : Al ratio.…”

Section: Introductionmentioning

confidence: 99%

Modification of surface properties of wool fabric with linde type a nano‐zeolite

Carran

Ghosh

Dyer

2015

J of Applied Polymer Sci

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Wool is a naturally occurring composite fiber consisting of keratin and keratin-associated proteins as the key molecular components. The outermost surface of wool comprises a lipid layer that renders the surface hydrophobic, which hinders certain fabric processing steps and moisture management properties of wool fabrics. In this study, Linde Type A (LTA) nano-zeolite (a Na 1 -, Ca 21 -, and K 1 -exchanged type A zeolite) was integrated onto the surface of wool using 3-mercaptopropyl trimethoxy silane as a bridging agent. The resultant surface morphology, hydrophilicity, and mechanical performance of the treated wool fabrics were evaluated. Notably, the surface hydrophilicity of wool increased dramatically. When wool was treated with a dispersion of 1 wt % zeolite and 0.2 wt % silane, the water contact angle decreased from an average value of 1488 to 508 over a period of approximately 5 min. Scanning electron microscopic imaging indicated good coverage of the wool surface with zeolite particles, and infrared spectroscopic evaluation demonstrated strong bonding of the zeolite to wool keratins. The zeolite application showed no adverse effects on the tensile and other mechanical properties of the fabric. This study indicates that zeolite-based treatment is potentially an efficient approach to increasing the surface hydrophilicity and modifying other key surface properties such as softness of wool and wool fabrics. V C 2015Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42392.

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The effects of zeolite molecular sieve based surface treatments on the properties of wool fabrics

Cited by 34 publications

References 56 publications

Thermal, Mechanical and Optical Features of Aluminosilicate-Coated Cotton Textiles via the Crosslinking Method

Thermal, Mechanical and Optical Features of Aluminosilicate-Coated Cotton Textiles via the Crosslinking Method

Biopolymers from Composted Biowaste as Stabilizers for the Synthesis of Spherical and Homogeneously Sized Silver Nanoparticles for Textile Applications on Natural Fibers

Modification of surface properties of wool fabric with linde type a nano‐zeolite

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