| Polyester nonwoven fabric (namely Polyethylene terephthalate, referred to as PET) is a huge kind of non-woven, which is mainly processed from the abandoned plastics. It is also synthetic fiber with many good properties, such as low price, light weight, anti-corrosion, excellent mechanical and chemical performance. But PET macromolecule is consisted of short aliphatic hydrocarbon chain, ester group, benzene ring and end hydroxy, there are no other polar groups except the two end hydroxys, which indicated its bad hydrophily and limited the areas of application. So improve the hydrophily of PET is greatly significant at present.UV-irradiated polymerization of water absorbing resin on the surface of polyethylene terephthalate (PET) to combine resin that has microcosmic three-dimensional network with polyester non-woven fabric that has macroscopic three-dimensional network to produce a kind of large scale of water absorption material. On the basis of morphology and structure characterized and analyzed by Scanning electron microscopy(SEM), Fourier translation infrared spectroscopy (FTIR) and contact angel(CA), studied the effects of monomer, initiator, cross-linking agent and degree of neutralization on water absorption performance. The result showed that large scale of water absorption material under the optimal conditions, the water absorption is more than 120 g/g, and the macroscopic size is under control, the integrity is well even after absorbing water; the way of absorbing water is more conform to pseudo-second order kinetic, the water enter into this water absorption material is mainly depend on diffusion while the speed of absorbing water is good; the water retention and reusability are favorable, structure is stable, the way of water enter into the adsorbent material change from diffusion to swelling effect after repeating use. At the arid region, it can storage rain and irrigation water quickly, and provide a possibility to the water sand-fixation at serious desertification areas.At the same time, to improve the speed of water absorption of resin, decrease dust pollution of water absorbing resin that is powder and simplify process steps to produce diapers and sanitary products, this paper through UV-irradiated polymerization of water absorbing resin on the surface of polyethylene terephthalate, then put it in ethanol to soak after water saturation, which result in get a kind of water absorption material that has high speed of water absorption and novel fluffy structure. On the basis of morphology and performance characterized and analyzed by Scanning electron microscopy (SEM) and contact angel (CA), using static nitrogen adsorption instrument to determinate BET surface area (SA) and pore volume (PV) and study swelling kinetic and water retention at different conditions and states. The result showed that because of hydrogen bonding and the different degree of shrinkage of polyester non-woven fabric and water absorption resin caused by ethanol, which can drag the water out of the resin that has three-dimensional network structure and produce fluffy structure; this absorbent material can absorb distilled water nearly 160 g/g in 1 min, BET surface area and pore volume obtain greatly improve and contact angle decrease to 0° in 3 s; the remove of homopolymer changed the main way of absorbing water, at the same time, the water retention of the water absorption material is favorable at high temperature and pressure. Use the same way as the produce of water absorption material C, which can effectively improve the repeat fluid absorption to 0.9 Wt%NaCl solution, and provide a possibility to the repeat use of infant and sanitary products in the future.
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