Cellulose‐based hydrogels for personal care products

Abstract

Name of cellulose is referred to a type of natural carbohydrate with many hydroxyl groups and high water absorption capacity. Cellulose is the most abundant natural polymer, found as the main constituent of plants (plant cellulose). Some bacteria such as Acetobacter xylinum are also able to synthesize bacterial cellulose. Cellulose-based hydrogels are superabsorbent materials, which make 3D networks. Chemical bonds or other cohesive forces such as hydrogen bonding or ionic interactions connect the cellulose chains together. Hydrogels can swell and absorb water and other aqueous fluids in their 3D networks, but they are insoluble in them. Nowadays, an increasing demand emerges for biodegradable materials and products made from renewable resources such as cellulose. The excellent biocompatibility of cellulose has prompted the large use of cellulose-based personal care products. Cellulose hydrogel is used for these products as the thickener and stabilizing agents or as moisturizing agent to improve the skin feel of the product. Hygienic cellulosic absorbent products such as diapers, panty liners, tampons, paper towels, and tissue papers are used as personal care products. These products are available in different absorbency ratings from junior to ultra-absorbency. Using cellulose-based hydrogel, superabsorbent products are made. In this review, applications of cellulose-based hydrogels in personal care products were reviewed.

Sustainable Production of Cellulose-Based Hydrogels with Superb Absorbing Potential in Physiological Saline

“…1,2 The high water absorption potential of hydrogels is due to the presence of hydrophilic functional groups, such as hydroxyl and carboxyl groups. Because of their hydrophilic nature and ability to swell, hydrogels are broadly used in personal hygiene products, 3,4 agriculture, 5 biomedical applications, 6,7 heavy metal removal, 8,9 and drug delivery. 10,11 Currently, most of the commercially available hydrogels are cross-linked synthetic polymers, such as polyacrylic acid and acrylic acid-acrylamide-derived copolymers.…”

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“…As a result of the high aspect ratio of the fiber, BC with a high specific surface area can provide a liquid loading capacity of up to 99 wt.%. In the presence of water, about 90% of water molecules are tightly bound to a large number of hydroxyl groups in cellulose molecules (Bashari et al, 2018). Compared with plant-derived cellulose, BC has larger specific surface area.…”

Improving the Hydrophilicity of Flexible Polyurethane Foams with Sodium Acrylate Polymer

“…On the other hand, superabsorbent polymers (SAPs) are crosslinked hydrophilic polymers that can absorb and retain large amounts of water and aqueous solutions up to hundreds of times their own weight, being their effectivity in saline solutions also very high [ 6 , 7 ]. Such absorption capacity allows the application of superabsorbent polymers for a wide variety of products, such as disposable diapers, feminine napkins, soils for agriculture and horticulture, absorbent pads, food packaging, artificial snow, controlled delivery of drugs and water-blocking tapes [ 8 , 9 , 10 , 11 , 12 ]. Superabsorbent polymers may have important applications related to the environment as a way to combat desertification or in wastewater and oil spills treatments [ 9 , 13 , 14 , 15 ].…”