A new approach for assessing the absorption of disposable baby diapers and superabsorbent polymers: A comparative study

Bachra, Yahya; Grouli, Ayoub; Damiri, Fouad; Bennamara, A.; Berrada, M.

doi:10.1016/j.rinma.2020.100156

Cited by 35 publications

(30 citation statements)

References 23 publications

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“…Mass percent of the removal metal ion was calculated using the following Equation (2) [ 55 ]. % Removal = (C 0 − C f /C 0 ) × 100 where C 0 and C f (mg/L) are the initial and final equilibrium concentrations of solution.…”

Section: Methodsmentioning

confidence: 99%

Valorization of Moroccan Bentonite Deposits: “Purification and Treatment of Margin by the Adsorption Process”

Hmeid¹,

Akodad²,

Baghour³

et al. 2021

Molecules

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The main objective of this work was to contribute to the reduction in the contamination of phenolic compounds contained in margin by an adsorption process on two types of raw bentonite. The margin used in the studies was collected from a semi-modern oil mill located in the Nador–Morocco region. The results of the physico-chemical analyses showed that the effluents of the oil mills showed that they are highly polluted, particularly in terms of the total suspended solids (TSS), chemical oxygen demand (COD), and iron content of around 154.82 (mg/L), and copper content of 31.72 (mg/L). The mineralogy of bentonites studied by X-ray diffraction (XRD) reveals the existence of two types of montmorillonite; theoretically, the diffraction peak (001) of the montmorillonite appears at 15 Å, with a basal spacing that corresponds to a calcium pole, and the diffraction peak (001) appears at 12Å, with a basal spacing that corresponds to a sodium pole. The specific surface area of the bentonite used is characterized by a large specific surface area, varying between 127.62 m2·g−1 and 693.04 m2·g−1, which is due to the presence of hydrated interleaved cations. This surface is likely to increase in aqueous solution depending on the solid/liquid ratio that modulates the degree of hydration. With a high cation exchange capacity (CEC) (146.54 meq/100 g), samples of margin mixed with raw bentonites at different percentages vary between 5% and 100%. The potential of Moroccan bentonite for the phenol adsorption of 9.17 (g/L) from aqueous solutions was investigated. Adsorption tests have confirmed the effectiveness of these natural minerals in reducing phenolic compounds ranging from 8.72% to 76.23% contained in the margin and the efficiency of heavy metal retention through microelements on raw bentonites. The very encouraging results obtained in this work could aid in the application of adsorption for the treatment of margin.

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Section: Methodsmentioning

confidence: 99%

Valorization of Moroccan Bentonite Deposits: “Purification and Treatment of Margin by the Adsorption Process”

Hmeid¹,

Akodad²,

Baghour³

et al. 2021

Molecules

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“…To compare the synthesized products with the commercial products, the standards for evaluation of the absorption of superabsorbent polymers established and recommended by recognized international organizations were applied. erefore, FSC and CRC were chosen as industrial-grade absorption tests [2,53,54].…”

Section: Swelling Propertiesmentioning

confidence: 99%

“…is technique is the most practical and rapid assessment of the absorption capacity of the absorbent sample [2]. e basic fluids are distilled water, tap water, and saline (0.9 wt% NaCl solution).…”

Section: Free Swell Capacity (Fsc)mentioning

confidence: 99%

“…It is well known that superabsorbent polymers (SAPs) are highly consumable products in everyday life, and the demand for products prepared with these polymers is very high (e.g., baby diapers, sanitary napkins, and incontinence articles) [1]. e products currently on the market are almost entirely synthetic materials derived from petroleum, which have negative effects on the environment on the one hand and, on the other hand, their price is relatively high and depends on the market price of petroleum [2]. e step of investing in the research and development of alternatives is therefore very promising.…”

Section: Introductionmentioning

confidence: 99%

“…International Journal of Biomaterials [2]. For these reasons, our approach to the development of SAPs is to synthesize an environmentally friendly superabsorbent material based on a fully biodegradable polymer (tragacanth gum) that would absorb and retain water rapidly and reversibly while being competitive with synthetic SAPs on the market in terms of absorption capabilities under specific conditions and market price.…”

Section: Introductionmentioning

confidence: 99%

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A Novel Superabsorbent Polymer from Crosslinked Carboxymethyl Tragacanth Gum with Glutaraldehyde: Synthesis, Characterization, and Swelling Properties

Bachra

Grouli

Damiri

et al. 2021

International Journal of Biomaterials

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Nowadays, current global environmental problems include measures to eliminate or reduce the negative impact of chemicals from petroleum sources and, therefore, the use of materials from natural resources is increasingly recommended. In this context, natural-based superabsorbent polymers derived from polypeptides and polysaccharides have undergone chemical and biochemical modifications to improve their ability to absorb and retain large amounts of liquids. In the present paper, a new process has been used to overcome the side effects of radical polymerization in the manufacture of conventional polyacrylate superabsorbents (SAPs). Tragacanth gum (TG) was selected to prepare a new superabsorbent material (CMTG-GA) based on carboxymethyl tragacanth (CMTG) crosslinked with glutaraldehyde (GA). The characterization of the polymer was carried out by FTIR, TGA, XRD, and SEM. The effect of the amount of crosslinking agent and the pH on the water absorption capacity was also examined. Subsequently, swelling studies were performed using free swelling capacity (FSC) and centrifuge retention capacity (CRC) techniques in distilled water, tap water, and saline solution. The results showed that the CRC of the new material is not less than 42.1 g/g, which was observed for a ratio of 20% by weight of GA to CMTG. Likewise, the maximum absorption results were 43.9 and 32.14 g/g, respectively, for FSC and CRC at pH 8.0. In addition, a comparison of the swelling capacities of the synthesized product with a commercial SAP extracted from a baby diaper, well known in the Moroccan market, showed that the performances were very similar.

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Investigation of water absorption performance of polyester‐woven fabrics coated with super absorbent polymer

Özan,

Kanik,

Özer

2023

J of Applied Polymer Sci

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Superabsorbent polymers (SAPs) constitute a special class of polymers widely used in various fields, especially in the hygiene and healthcare sectors. This study investigates the feasibility of achieving high water absorption capacity surfaces by coating powdered SAP using conventional coating methods onto textile surfaces. For this purpose, water‐based coating pastes containing micronized SAP powder based on acrylamide/acrylic acid copolymer were coated onto polyester (PES)‐woven fabric surfaces using a knife‐over‐roll coating technique. As the working parameters, the pH value of the coating paste, the coating thickness (the distance between the cloth and the knife), the drying/fixing temperature and time, the SAP concentration, and the water absorption capacity according to time were investigated. The results were evaluated by applying the coating thickness, the amount of coating material transferred to the fabric on the SAP‐coated samples, water absorbing capacity, and centrifugal water retention tests. The obtained results have demonstrated that textile surfaces with high water absorption capacity (on average 200%–350%) can be achieved by coating hydrophobic fabric surfaces, such as PES, with SAP under suitable conditions.

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A new approach for assessing the absorption of disposable baby diapers and superabsorbent polymers: A comparative study

Cited by 35 publications

References 23 publications

Valorization of Moroccan Bentonite Deposits: “Purification and Treatment of Margin by the Adsorption Process”

Valorization of Moroccan Bentonite Deposits: “Purification and Treatment of Margin by the Adsorption Process”

A Novel Superabsorbent Polymer from Crosslinked Carboxymethyl Tragacanth Gum with Glutaraldehyde: Synthesis, Characterization, and Swelling Properties

Investigation of water absorption performance of polyester‐woven fabrics coated with super absorbent polymer

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