Sodium polyacrylate (SAP) absorbent resin
China Water Absorbent Material Procurement Wholesale: Sodium Polyacrylate (SAP) Polymer Water Absorbent Resin
Sodium polyacrylate is a water-swellable polymer with a certain degree of crosslinking.
As a water absorbent material, sodium polyacrylate (SAP) is insoluble in water or organic solvents, but has unique water absorption and water retention capabilities, and at the same time has the advantages of polymer materials. Super absorbent resins absorb a large amount of water, which can reach hundreds or even thousands of times their own weight. SAP absorbs water quickly and can generate gel within seconds, and has strong water retention. It is not easy to lose water even under heat and pressure conditions. It has good stability to light, heat, acid and alkali, and has good biodegradability.
Common uses of high molecular water-absorbent resin sodium polyacrylate:
SAP water-absorbent swelling rubber:
The application of highly absorbent resin to the rubber industry can be made into sealing pads, waterproof strips, etc. with water-absorbent swelling properties, which can effectively improve the good elasticity and mechanical strength of rubber, overcome the problem of difficult deformation recovery after long-term use caused by applying large pre-deformation, and when water is present, it can quickly absorb water and expand in volume to fill the seam. Especially for those irregular seams, its water-stopping and leak-proofing effect is more reliable than traditional sealing materials.
SAP ice pads, ice caps, and ice belts: Summer cool hats and ice belts (hairbands) with highly absorbent resin as interlayers can absorb sweat, keep cool, and avoid the heat for a long time in the hot summer. The working principle is that after the sodium polyacrylate water-absorbent material is soaked in water for about 10 minutes, it can combine with a large amount of water to produce natural expansion, and store the water in the form of gel, and then slowly evaporate and release it under the action of temperature and air. Because a large amount of heat is consumed by the evaporation of water, it can reduce the body temperature when used, thereby achieving a cooling effect.
SAP ice packs and fresh-keeping bags: Sodium polyacrylate water-absorbing materials are used to make ice packs and fresh-keeping bags. Since super absorbent resin has a certain cold storage effect after absorbing water, ice packs and fresh-keeping bags can cool down items and release water repeatedly, which can achieve a long-term fresh-keeping effect.
Super absorbent resin medicine moisturizing: Super absorbent resin is used in medical medicine and physiological hygiene because of its strong water absorption and water retention, as well as its characteristics of absorbing urine, blood, and medicine. It can be used as disposable napkins, paper handkerchiefs, surgical cloths, cotton wool, bandages, various pads, mattresses for hospital patients, etc., and can also be used as anti-thrombotic materials. Super absorbent resin has also been promoted in the slow release or local injection technology of medicine.