Nano-Mg–Al-layered double hydroxide application to cotton for enhancing mechanical, UV protection and flame retardancy at low cytotoxicity level

Barik, Sunita; Khandual, Asimananda; Behera, Lingaraj; Badamali, Sushanta K.; Luximon, Ameersing

doi:10.1007/s10570-016-1134-4

Cited by 34 publications

(13 citation statements)

References 61 publications

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“…Synthetic nanosized Mg–Al‐layered double hydroxide together with reactive dye that contained vinyl group was applied in ref. for cotton treatment. This clay influenced notably the mechanical characteristics that were obvious from the ≈70% increase in the tensile strength and more than two times increased stiffness measured, as measured by the bending length.…”

Section: Claysmentioning

confidence: 99%

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Cellulose Mineralization as a Route for Novel Functional Materials

Shchipunov

Postnova

2018

Adv Funct Materials

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Cellulose possesses excellent properties, but its performance characteristics do not satisfy human requirements completely, which has soured a constant effort to improve its features. Currently, cellulose is combined with inorganics in a process called mineralization that results in a novel type of materials referred to as bio-nanocomposites. There are many examples of mineralized tissues with superior properties in living nature. This circumstance gives us a reason to biomimic them by compounding biopolymers with inorganics. Here, the main mineralization techniques, properties, structure, functionality, and application of mineralized cellulose are the focus. Cellulose can be combined with inorganics through the vapor phase or by the methods of wet chemistry. Much attention has been paid to sol-gel chemistry, which is of first importance in cellulose mineralization. Inorganics can protect polysaccharides, regulate hydrophilicity-hydrophobicity, and impart self-cleaning, antimicrobial and conducting properties, which not only improves them but results in bio-nanocomposites with novel functionalities and performance, not known before for cellulosic materials. Further calcination and carbonization of mineralized cellulose under mild conditions give nanosized metals, metal oxides, and their nanocomposites with carbon, which are often unavailable by conventional methods. Therefore, mineralization is used to develop innovative textiles, oil absorbent and oil/water separating membranes, catalysts and photocatalysts, solar cells, conductors, supercapacitors, transistors and batteries for flexible electronics, and energy storage devices. These nontraditional and highly promising areas for applications have caused an intense interest in cellulose that resembles its rediscovery.

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Section: Claysmentioning

confidence: 99%

“…Their effect is explained by the absorption of the UV portion of the Sun's spectrum (Figure ). Furthermore, clay nanoparticles such as layered double hydroxides are suggested for protection …”

Section: Applicationsmentioning

confidence: 99%

Cellulose Mineralization as a Route for Novel Functional Materials

Shchipunov

Postnova

2018

Adv Funct Materials

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“…Recently, MgAl-LDHs have been used as UV-blocking materials, and they have been added to polypropene (PP), 36,37 poly(ethylene terephthalate), 38 poly(methyl methacrylate), 39 polyurethane, 40 bitumen, 41 and fabric 42,43 to improve the anti-UV ability, owing to the virtues of relatively low photocatalytic performance, being nontoxic, and of low cost compared with the currently used inorganic UV inhibitors, such as TiO 2 and ZnO. 37,44 However, the MgAl-LDH filler tends to be excessively added in the matrix because it shows low absorbance to UV rays.…”

Section: Introductionmentioning

confidence: 99%

Effect of Divalent Metals on the UV-Shielding Properties of M^II/MgAl Layered Double Hydroxides

et al. 2019

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Both the particle size and compositions have a strong influence on the UV-shielding performance of layered double hydroxides (LDHs), and they will interact with each other. To investigate the effects of divalent metal ions on the UV-shielding properties of layered double hydroxides (LDHs), M II /MgAl–CO 3 LDHs (M = Mg, Co, Ni, Cu, or Zn) with the same primary and secondary particle size have been prepared and their UV-shielding performance have been studied in this work. The UV–vis spectra show that the ZnMgAl-LDHs exhibit the highest absorbance under the ultraviolet B and ultraviolet A rays among these LDH samples, but in the ultraviolet C region, the CuMgAl-LDHs show the highest absorbance and this result is in good accordance with the UV-shielding performance, which was examined by protecting the photocatalytic degradation of rhodamine B aqueous solution. Moreover, under UV rays, PP/ZnMgAl-LDH films show excellent resistance to UV aging, which can be attributed to the strong inhibition of ZnMgAl-LDHs during the production of free radicals in polypropene, as has been confirmed by electron spin resonance results.

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“…Furthermore, a strong peak was observed at 1361 cm −1 attributed to ν 3 vibration of CO 3 2− from the interlayer anion [ 33 ]. For both Mg/Al LDH and modified Mg/Al LDH, absorption peaks appeared at 450, 680, 776 and 870 cm −1 , attributed to Mg–O and Al–O vibrations [ 34 , 35 , 36 ]. Furthermore, several additional peaks appeared at 1240, 1205, and 1144 cm −1 belonging to CF 2 asymmetric stretching, FH 2 symmetric stretching, and CF 2 symmetric stretching in the spectra of modified Mg/Al LDH [ 37 , 38 , 39 ], which indicated that long-chain fluoroalkyl functionalized Mg/Al LDHs were obtained.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Superhydrophobic Mg/Al Layered Double Hydroxide (LDH) Coatings on Medium Density Fiberboards (MDFs) with Flame Retardancy

et al. 2018

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The hydrophilicity and flammability of fiberboards have limited their real-life applications. In this study, a facile strategy for preparing the multifunctional coatings with superhydrophobicity and flame retardancy on medium density fiberboards (MDFs) has been investigated. The superhydrophobic and flame-retardant coating on the MDF surface was obtained by depositing polydimethylsiloxane (PDMS) and 1H, 1H, 2H, 2H-perfluorodecyltrichlorosilane (FDTS)-modified Mg/Al layered double hydroxide (LDH) particles step by step. The as-prepared coating exhibited superhydrophobic properties with a water contact angle (WCA) of ~155° and good self-cleaning properties. Furthermore, the limiting oxygen index (LOI) value of the superhydrophobic MDFs increased by 60.4% as compared to that of the pristine MDFs, showing improved flame retardancy. The peak heat release rate (PHRR) and total heat release (THR) of MDFs decreased after coating with PDMS@FDTS-Mg/Al LDH, suggesting that the superhydrophobic coating decreased the fire growth speed and risk of fire hazard of MDFs. This coating with multiple functions opens a new avenue for the protection and functionalization of MDFs.

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Nano-Mg–Al-layered double hydroxide application to cotton for enhancing mechanical, UV protection and flame retardancy at low cytotoxicity level

Cited by 34 publications

References 61 publications

Cellulose Mineralization as a Route for Novel Functional Materials

Cellulose Mineralization as a Route for Novel Functional Materials

Effect of Divalent Metals on the UV-Shielding Properties of M^II/MgAl Layered Double Hydroxides

Fabrication of Superhydrophobic Mg/Al Layered Double Hydroxide (LDH) Coatings on Medium Density Fiberboards (MDFs) with Flame Retardancy

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Nano-Mg–Al-layered double hydroxide application to cotton for enhancing mechanical, UV protection and flame retardancy at low cytotoxicity level

Cited by 34 publications

References 61 publications

Cellulose Mineralization as a Route for Novel Functional Materials

Cellulose Mineralization as a Route for Novel Functional Materials

Effect of Divalent Metals on the UV-Shielding Properties of MII/MgAl Layered Double Hydroxides

Fabrication of Superhydrophobic Mg/Al Layered Double Hydroxide (LDH) Coatings on Medium Density Fiberboards (MDFs) with Flame Retardancy

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Product

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Effect of Divalent Metals on the UV-Shielding Properties of M^II/MgAl Layered Double Hydroxides