Influences of neutralization of superabsorbent hydrogel from hydroxyethyl cellulose on water swelling capacities

Adair, Ajaman; Klinpituksa, Pairote; Kaesaman, Azizon

doi:10.1063/1.4995098

Cited by 7 publications

(2 citation statements)

References 16 publications

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“…The capacity of the superabsorbent to absorb and retain the amount of water depends on the polymer network structure primarily on the crosslink density. It also depends on the degree of neutralization of carboxylic group of starting monomer [7]. It is possible to produce SAP of varied absorption quantities at free swelling condition or under pressure depending on the intended application of SAP.…”

Section: Resultsmentioning

confidence: 99%

“…Generally, superabsorbent polymers are lightly crosslinked, partially neutralized hydrophilic three-dimensional networks that expand during water absorption. Their ability to absorb up to several hundred to thousand times of their own dry weight are also influenced by other factors including the pH of the solution [7,8]. Crosslinked polyacrylic acid and polymethacrylic acid, when neutralized with sodium hydroxide, the polymer chains set up an electrostatic repulsion which tends to expand the network, thus providing volumes for diffusion of solvent [9].…”

Section: Introductionmentioning

confidence: 99%

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Investigation of superabsorbent polymer absorbency at reduced chemical potential of water

2019

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Different types of superabsorbent polymers (SAP) exhibiting varied absorbency properties were investigated for their performances at varying concentrations of an electrolyte. Water chemical potential, which is a function of concentration and pressure, was interpreted as a major parameter for absorbency and swelling properties of SAP. Superabsorbent polymers that were investigated gave different values of permeability which was carried out in a layer of swelled superabsorbent polymer. This result revealed differences on the structure of the superabsorbent polymers particularly on the crosslinking density. SAP’s absorbency properties were further tested and a correlation between the quantity of absorption and the chemical potential of water in terms of sodium chloride concentration was developed using experimental data on free swelling capacity and absorption under pressure. Results showed decreasing quantity of absorption by the superabsorbent polymers with decreasing chemical potential of water with higher reduction in the absorbency at higher pressure applied on the swelled SAP.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of superabsorbent polymer absorbency at reduced chemical potential of water

2019

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Toward sustainable menstrual health management: focus on super absorbent polymers

Mogale,

Schutte-Smith,

Erasmus

et al. 2024

J Mater Sci

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In low- to middle-income communities, the lack of affordability of conventional sanitary products during menstrual cycles can cause psychological and health issues, ultimately affecting their quality of life. It is crucial to develop alternative products that are affordable and accessible to all while also promoting menstrual health and hygiene. Super absorbent polymers (SAPs) are a vital component in current disposable sanitary pads and nappies. However, these SAPs are often non-biodegradable and non-biocompatible. Therefore, the use of eco-friendly materials for the production of SAPs is gaining popularity in the hygiene industry, as it offers a means to reduce the carbon footprint and environmental impact associated with traditional SAPs made from non-renewable petroleum-based materials. SAPs made from polysaccharides often have naturally occurring antibacterial properties, making them appealing for commercial applications in sanitary products such as sanitary pads. In addition, the move toward reusable sanitary pads with antibacterial properties can significantly reduce waste generated by single-use products and prevent the growth of bacteria, improving the safety and hygiene of the product. Furthermore, computational modeling and artificial intelligence are now important tools in SAP synthesis, providing advantages such as predicting polymer properties, rationalizing synthesis pathways, and improving quality control. These tools can reduce synthesis costs by eliminating the need for trial-and-error approaches in polymer synthesis, ultimately promoting more affordable products for end users. Overall, these advancements in polymer synthesis and material design can help to create a more sustainable industry and promote menstrual hygiene and product accessibility to those who need it most.

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Performance of Geosynthetic Clay Liner with Polymerized Bentonite in Highly Acidic or Alkaline Solutions

Prongmanee

Chai

2019

Int. J. of Geosynth. and Ground Eng.

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Influences of neutralization of superabsorbent hydrogel from hydroxyethyl cellulose on water swelling capacities

Cited by 7 publications

References 16 publications

Investigation of superabsorbent polymer absorbency at reduced chemical potential of water

Investigation of superabsorbent polymer absorbency at reduced chemical potential of water

Toward sustainable menstrual health management: focus on super absorbent polymers

Performance of Geosynthetic Clay Liner with Polymerized Bentonite in Highly Acidic or Alkaline Solutions

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