Water-Blocking, Optical-Fiber Cable System Employing Water-Absorbent Materials

Hogari, K.; Ashiya, F.

doi:10.1021/bk-1994-0573.ch010

Cited by 8 publications

(2 citation statements)

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“…As a consequence, they have become an important area of research and development in the field of medicine, pharmacy, and biotechnology. [2][3][4][5][6][7][8] SAPs can be roughly divided into natural-based and full synthetic ones. Despite the advantages of hydrogels made from synthetic polymers, there are also severe limitations such as toxicity and nonbiodegradability to this type of material.…”

Section: Introductionmentioning

confidence: 99%

Grafted CMC/silica gel superabsorbent composite: Synthesis and investigation of swelling behavior in various media

Pourjavadi

Seidi

Satha

et al. 2008

J of Applied Polymer Sci

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In the present study, we attempt to synthesize and characterize novel CMC-g-poly (acrylic acid-co-2-acrylamido-2-methylpropanesulfonic acid)/silica gel composite. Infrared spectroscopy and TGA thermal analysis were carried out to confirm the chemical structure of the hydrogel. Moreover, morphology of the samples was examined by scanning electron microscopy. The effect of reaction variables affecting on water absorbency of the composite and swelling behavior in various solvents, salt, and pH solutions was investigated. Maximum water absorbency of the optimized final product was found to be 4000 g/g in distilled water. The absorbency under load (AUL) of the hydrogel was also determined by using an AUL tester at various applied pressures. Finally, dynamic swelling kinetics of the hydrogel was studied.

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Section: Introductionmentioning

confidence: 99%

Grafted CMC/silica gel superabsorbent composite: Synthesis and investigation of swelling behavior in various media

Pourjavadi

Seidi

Satha

et al. 2008

J of Applied Polymer Sci

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“…Other applications are being explored based on the polymer's ability to absorb brine socreases, the network structure becomes increasing loose. No continuous network is formed above lutions, and superabsorbents have been used as sealing composites, 1 water-blocking tapes, 2 artia critical dilution factor. 10 In the first part of this series, 11 attention was ficial snow, 3 and gel actuators.…”

Section: Introductionmentioning

confidence: 99%

Studies of crosslinked poly(AM-MSAS-AA) gels. II. Effects of polymerization conditions on the water absorbency

Zhou

Yao

Kurth

1997

J. Appl. Polym. Sci.

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Hydrogels with varying crosslinking ratio and ionic content were prepared by copolymerization of acrylamide (AM), sodium methallylsulfonate (MSAS), sodium acrylate (AA), and N,N-methylenebisacrylamide (BisA) in aqueous solution using potassium persulfate (KPS)/N,N,N,N-tetramethylethylenediamine (TMEDA) as initiator. The influences of synthetic variables (reaction time, crosslinker concentration, monomer concentration, initiator concentration, temperature, and pH) on the polymerization conversion ( y %) and water absorbency ( Q) were studied in detail. These gels, which absorbed about 125 times their own weight in distilled water, have potential application as water superabsorbents.

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Superabsorbent Polymers

Buchholz

2002

Encyclopedia of Polymer Science and Technology

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Superabsorbent polymers are very high molecular mass, cross‐linked polyelectrolytes that can absorb more than 10 times their mass of water or aqueous solutions. The commercially available superabsorbent polymers are alkali matal salts of poly(acrylic acid) cross‐linked with multifunctional monomers. The polymers are usually made by means of free‐radical‐initiated polymerization of an aqueous solution of the monomers, followed by drying the resulting hydrogel, and grinding the dry polymers to a granular powder. The principal use of superabsorbent polymers is as a liquid absorbent in baby diapers, feminine hygiene products, and adult incontinence products. Smaller volumes are used in food packaging and in water‐blocking tapes for electrical and telecommunication cables. Total global usage of superabsorbent polymers in 2001 amounted to about 1093 kt.

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Water-Blocking, Optical-Fiber Cable System Employing Water-Absorbent Materials

Cited by 8 publications

References 0 publications

Grafted CMC/silica gel superabsorbent composite: Synthesis and investigation of swelling behavior in various media

Grafted CMC/silica gel superabsorbent composite: Synthesis and investigation of swelling behavior in various media

Studies of crosslinked poly(AM-MSAS-AA) gels. II. Effects of polymerization conditions on the water absorbency

Superabsorbent Polymers

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