Modification of halloysite nanotubes with xanthene dyes and their application in luminescent polymer nanocomposites

Alam, Qadeer; Bartczak, Piotr; Paananen, Hanna; Suvanto, Mika; Pakkanen, Tuula T.

doi:10.1016/j.jlumin.2020.117096

Cited by 9 publications

(2 citation statements)

References 34 publications

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“…Several clay minerals have been widely studied to improve the mechanical properties of polymeric matrices, such as montmorillonite (Rodrigues Passos Severino et al, 2019;Passer et al, 2013a;2013b;Barbalho, 2012;Bai et al, 2018), halloysite (Bertolino et al, 2020;Lisuzzo et al, 2020;Alam et al, 2020), sepiolite (Ferrari et al, 2017;Kim et al, 2020;Fernández-Barranco et al, 2020;Wang et al, 2020;Sun et al, 2020;Di Credico et al, 2019) and attapulgite (palygorskite) (da Silva et al, 2020;Tian et al, 2020;Yang et al, 2020;Elbassyoni et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

A Brief Review of the Latest Advances of Attapulgite as a Reinforcing Agent in Polymer Matrix Nanocomposites

Silva¹,

Souza²,

Morgado³

et al. 2021

American Journal of Engineering and Applied Sciences

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The development of polymeric nanocomposites using clay minerals as a Nano filler is of great interest to researchers and industry. Many clay minerals are used to modify the properties of the polymers; this strategy improves the thermal and mechanical performance and changes the surface finishing and the processing characteristics. The Attapulgite (ATP), which is a clay mineral of the hydrated magnesium silicates family, has gained prominence in recent years because it combines low cost and high performance. It has a large surface area, strong absorption capacity superior to any other natural mineral, good mechanical resistance and thermal stability. These properties make ATP an ideal candidate for reinforcing polymeric materials. Different approaches and emerging technologies have been applied to improve the thermal and mechanical properties of polymer/ATP nanocomposites which can extend the different chemical treatments used in ATP. Therefore, this review article presents the latest advances related to the use of ATP in the development of polymeric nanocomposites, showing future perspectives for new trends in ATP applications. In general, ATP modifies the mechanical properties of polymers, either in the natural or modified state. And is a good alternative for the replacement of lamellar clays such as montmorillonites with the advantage of having a lower cost and a wide world market to be explored, that which drive new trends in applications for ATP, such as flame retardant of cotton fabrics, dye adsorption, hydrogel membranes for wound dressing, sustainable packaging and fuel cell applications.

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Section: Introductionmentioning

confidence: 99%

A Brief Review of the Latest Advances of Attapulgite as a Reinforcing Agent in Polymer Matrix Nanocomposites

Silva¹,

Souza²,

Morgado³

et al. 2021

American Journal of Engineering and Applied Sciences

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“…With halloysite hybrid pigments, nanolevel dispersions of dyes provide polystyrene with enhanced luminescence [21]. The hybrid materials that result from the adsorption of dyes into modified nanoclays have been used to modify optical [22], mechanical, fire or barrier properties of different polymer matrices with successful results, depending on nanoclay particle exfoliation [23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Halloysite and Laponite Hybrid Pigments Synthesis with Copper Chlorophyll

et al. 2021

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Sustainable and green materials have been studied in dye and pigment productions to reduce their environment impacts from being produced and applied. Although natural dyes are an excellent choice to move from agrowaste, some improvements must be made before they are applied given their poor fastness. One way of improving natural dye properties is their adsorption into nanoclay structures to give hybrid pigments. This work used tubular halloysite and laminar laponite to adsorb and stabilize natural copper chlorophyll. With a statistical design of experiments, we observed interactions between synthesis factors, such as pH, ionic strength, and surfactant or silane modification. Cool hybrid pigments with high TSR (%) values and a wide color range were obtained by using dispersions with only distilled water at room temperature. Successful chlorophyll adsorption on both nanoclay surfaces took place by XRD and DTA analyses. The maximum natural dye absorption for both nanoclay types took place under acid conditions, pH 3–4, and in the presence of mordant. The TSR (%) improved by the silane pH interaction, and halloysite hybrid pigments obtained higher TSR values than the laponite ones. Finally, a wide chromatic green color range was obtained with the surfactant modification in both nanoclays, and the color fastening was also improved in the hybrid pigments application. The samples generated with 10% of hybrid pigments from both nanoclays and an Epoxy bioresin, show higher colorfastness than the sample with the natural chlorophyll, due to the nanoclays–dye interaction and protection.

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Change in lumen pore structure of halloysite nanotube membrane coating under varying pressure, time and temperature

Dutta,

Das

2024

J Porous Mater

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Modification of halloysite nanotubes with xanthene dyes and their application in luminescent polymer nanocomposites

Cited by 9 publications

References 34 publications

A Brief Review of the Latest Advances of Attapulgite as a Reinforcing Agent in Polymer Matrix Nanocomposites

A Brief Review of the Latest Advances of Attapulgite as a Reinforcing Agent in Polymer Matrix Nanocomposites

Halloysite and Laponite Hybrid Pigments Synthesis with Copper Chlorophyll

Change in lumen pore structure of halloysite nanotube membrane coating under varying pressure, time and temperature

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