Disclosed is an absorbent article including: a laminate that has an absorbent containing water-absorbent resin particles and a fibrous material, and a core wrap sandwiching the absorbent from upper and lower sides of the absorbent; a liquid-permeable sheet disposed on an upper surface of the laminate; and a liquid-impermeable sheet disposed on a surface on a side opposite to the liquid-permeable sheet of the laminate. The water-absorbent resin particles satisfy the following requirements (a) and (b). (a) A surface drying index of the absorbent article represented by the following formula is 45 or lower.

Surface drying index=(moisture content index 1.5 minutes after liquid injection/moisture content index 1 minute after liquid injection)×100

(b) A water retention capacity of the water-absorbent resin particles for a physiological saline solution is 30 g/g or more.

An absorbent article 100 includes an absorber 10, the absorber 10 contains water-absorbent resin particles 10a, and a swelling height of the water-absorbent resin particles 10a measured by the following procedures (1) to (6) is 10 mm or less.

(1) A container having a recess having a bottom area of 50 cm.sup.2 is disposed in a state where the recess is open in a vertical direction.

(2) 1.00 g of water-absorbent resin particles are disposed in the recess.

(3) A non woven fabric is disposed on the water-absorbent resin particles in the recess.

(4) A weight having a mass of 90 g is disposed on the non-woven fabric.

(5) Physiological saline is supplied into the recess.

(6) A movement distance in a vertical direction of the weight when 300 seconds have passed from the start of swelling of the water-absorbent resin particles is measured as the swelling height.

A method of preparing a superabsorbent polymer sheet by polymerization of monomers in the presence of an encapsulated foaming agent and an inorganic foaming agent is provided. According to the method of preparing the superabsorbent polymer sheet of the present invention, a porous and flexible superabsorbent polymer sheet may be prepared.

Disclosed is a method for evaluating liquid leakage properties of water-absorbing resin particles. The method includes, in the following order: disposing a water-absorbing layer formed from the water-absorbing resin particles along an inclined plane inclined with respect to a horizontal plane; injecting a test solution which is in the form of liquid droplets and contains water into the water-absorbing layer exposed; and measuring a diffusion distance which is a distance in which the test solution injected into the water-absorbing layer diffuses along the inclined plane in a predetermined time. An angle of inclination formed by the horizontal plane and the inclined plane is 25 degrees or larger and 40 degrees or smaller.

The present disclosure relates to a method for preparing a super absorbent polymer that enables the preparation of a more improved super absorbent polymer even without excessive use of a surfactant and use of a foaming agent, and a super absorbent polymer prepared therefrom which exhibits a superior absorption rate.

A flexible conductive film is comprised of a flexible base and a conductive layer coated on it. The flexible base uses Surlyn resin as the matrix. It uses silver nanowire as the conductive layer.

A super absorbent polymer produced by the preparation method of the super absorbent polymer according to the present invention has excellent dryness while maintaining excellent absorption performance, and thus is preferably used for hygienic materials such as diapers and can exhibit excellent performance.

High performance electrodes for electrochemical devices having a polymer network with an electroactive material chemically attached to a crosslinked polymer matrix are disclosed. A method includes mixing an electrode slurry and forming a polymer network within the electrode slurry. The electrode slurry includes an electroactive material, an electrically conductive filler, a plurality of polymer chains, and a plurality of chemical crosslinking precursors. Each chemically crosslinking precursor is configured to (i) chemically crosslink the plurality of polymer chains and (ii) chemically attach the electroactive material to the plurality of polymer chains.

The invention relates to a process for producing long-term color stable superabsorbent polymer particles, comprising polymerization of a monomer solution, drying the resulting polymer gel, optionally grinding and classifying the resulting dried polymer gel and thermally surface post-crosslinking and cooling the resulting polymer particles, wherein a thermal surface post-cross-linker and hydrogen peroxide are added to the polymer particles prior to the thermal surface post-crosslinking.

Described are polymers, polymer binders, hydrogel polymer binders, hydrogel polymer binder compositions comprising them, electrode materials comprising them, their methods of production and their use in electrochemical cells, for instance, in silicon-based electrochemical cells.