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Showing 1 to 14 of 14 for “"superabsorbent"”.
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Improved superabsorbent polymers
… and modification of a class of acrylic-based superabsorbent polymers. The techniques of inverse suspension and solution polymerisations were used for synthesis. Each absorbent was mainly characterised by its equilibrium capacity of water absorption and by the rate of absorption. The swelling …
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Restoring semi-arid lands with superabsorbent polymers under reduced precipitation and threat of Bromus tectorum invasion
… it is abundant and slowly release it over time, superabsorbent polymers (SAP) may increase overall soil moisture and decrease soil moisture variability during restoration. In this study, we aimed to investigate the interactive effects of precipitation timing, drought, B. tectorum, and SAP on soil …
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Investigating repair mortars containing superabsorbent polymers as a method of internal curing to improve concrete patch repair performance
… Literature suggests that the addition of superabsorbent polymers (SAP's) to the concrete overlay can reduce the total shrinkage that occurs. A large amount of research exists pertaining to the use on SAP's in high performance concrete (HPC), while very little research has been done …
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Evaluating Tree Seedling Survival and Growth in a Bottomland Old-field Site: Implications for Ecological Restoration
… a mycorrhizal inoculant, mulch fabric, and two superabsorbent gels (TerraSorb® and DRiWATER®). Survival and growth measurements were assessed periodically for two years. Research was conducted on vegetation, soil, and site history for baseline data. Both superabsorbent gels gave significant …
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Preparation and Biocompatibility of Electrospun Zwitterionic Poly(Sulfobetaine Methacrylate) for Wound Dressing Applications
… properties, making it a promising material for superabsorbent and nonadherent wound dressings. Electrospinning provides multiple desirable features for wound dressings, including high absorptivity due to high surface-area-to-volume ratio, high gas permeation, and conformability to contour of the …
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SYNERGISTIC EFFECT OF SHRINKAGE MITIGATING STRATEGIES ON PERFORMANCE OF FIBER-REINFORCED CEMENTITIOUS COMPOSITES
… using saturated lightweight sand (LWS) and superabsorbent polymer (SAP), and external curing. A multi-scale investigation employing these strategies was conducted to determine their effects on rheology, key mechanical properties, fiber-matrix bonding, shrinkage, microstructural …
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The Development of Sustainable Internal Curing Agents Using Natural Hollow Fibres
The incorporation of superabsorbent materials as internal curing agents has demonstrated effectiveness in mitigating self-desiccation and early-age cracking in cement mixes characterized by low water-to-binder ratios (w/b). However, concerns related to sustainability, availability, and cost have …
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Low-Shrinkage Fiber-Reinforced Concrete for Infrastructure Construction and Rehabilitation
… including shrinkage-reducing admixture (SRA), superabsorbent polymer (SAP), and expansive agent (EA) has a detrimental effect on mechanical performance. These classes of HPC were optimized to reduce shrinkage, enhance mechanical properties, and improve durability. The effect of fiber type …
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STRATEGIES TO IMPROVE SHRINKAGE RESISTANCE OF CEMENT-BASED MATERIALS FOR EXTRUSION-BASED 3D PRINTING
… (EA), pre-saturated lightweight sand (LWS), superabsorbent polymers (SAP), and shrinkage reducing admixture) on printability and shrinkage performance of mortar; and v) evaluate the effect of EA, LWS, steel and synthetic fibers on chloride-induced corrosion and transport properties of …
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The behaviour of liquid movement in three dimensional weft knitted spacer fabrics
… and Viscostar®) and yarn (Tencel® and Oasis superabsorbent). Materials were evaluated for high absorbency using standard methods. Liquid spreading on the surface of the fabric was measured using conventional test methods, however to map spatial liquid movement a new test method was designed. …
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Crack-resistant and self-healing cut-off wall materials incorporating polymers and minerals
… overall performance of four additives, including superabsorbent polymers (SAPs), oil sorbent polymers, reactive magnesia (MgO) pellets, and microencapsulated sodium silicate in two cut-off wall materials (cement-bentonite slurry and cement mixed soil) is the interest of this study. In general, the …
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The Hydrogel Reimagined: Gel-Derived Sponges and Sheets as Absorbents for Water, Blood, and Oil
… swollen in water, are well-studied materials. Superabsorbent polymer (SAP) gels that can absorb more than 100x their dry weight in water are widely used in personal hygiene products – but only in the form of microscale beads. If dry SAP gels were larger, they would either take too long to swell …
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Clay linked Gels : Mechanical Enhancement of Hydrogels by Incorporation of Clay Minerals
Superabsorbent polymers are found in numerous industrial applications due to their outstanding swelling ability for water. Besides swelling capacity, the performance of absorbent gel materials (AGM) is critically determined by the gel strength in the swollen state. If the gel strength of the …
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Development and performance of self-healing and self-immune soil-cement systems subjected to freeze-thaw cycles
… during freeze-thaw action was revealed. A superabsorbent polymer (BASF SAP A) was also used to develop self-immune soil-cement systems. Compared to SikaAer® Solid microcapsules, the addition of SAPs had little effect on the initial dry density, strength properties, and permeability of the …