Synthesis of Superabsorbent Polymer in Inverse Emulsion via Post-Cross-Linking

Ya Feng Cao; Kai Liu; Zhao Li Liu; Feng Zhi Tan; Yuan Li

doi:10.4028/www.scientific.net/AMR.430-432.443

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 430-432Synthesis of Superabsorbent Polymer in Inverse...

Synthesis of Superabsorbent Polymer in Inverse Emulsion via Post-Cross-Linking

Abstract:

Firstly a graft copolymer was synthesized by graft copolymerization of starch with acrylamide (AM) in inverse emulsion, and then the copolymer was deaminated and post-cross-linked by heating to produce three-dimensional superabsorbent polymer. The effect of initiate conditions, composition and concentration of emulsifier, cross-linking methods and conditions were investigated. The results show that the optimized conditions are as follows: The mixture of (NH4)2S2O8-(NH2)2CO are used as initiators, and molar ratio of initiators and acrylamide is 1.4∶105; The mixture of Span20 and Tween80 with the mass ratio of mSpan20∶mTween80=80∶20 is used as emulsifier, and the total mass fraction of the mixed emulsifier is 7% of the oil phase; Post-cross-linking method is used, and the conditions are Tc=130 °C – 140 °C, t=30 min. The water-absorbing capacity of superabsorbent polymer obtained under such conditions can reach up to 1300 – 1400 g/g in distilled water and 400 -500 g/g in saline, respectively. Its water retention rate can reach more than 90%.

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Periodical:

Advanced Materials Research (Volumes 430-432)

Pages:

443-448

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.430-432.443

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Online since:

January 2012

Authors:

Ya Feng Cao, Kai Liu, Zhao Li Liu, Feng Zhi Tan, Yuan Li

Keywords:

Deamination, Graft Copolymerization, Post-Cross-Linking, Starch, Superabsorbent

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References

[1] Xiaoqiu Xu, Tingdong Liu: The technology and formula of superabsorbent, Beijing: Chemical Industry Press (2004).

Google Scholar

[2] Xinxi Zou: Superabsorbent, Beijing: Chemical Industry Press (2002).

Google Scholar

[3] Lim D W, Song K G, Yoon K J: Synthesis of acrylic acid-based superabsorbent interpenetrated with sodium PVA sulfate using inverse-emulsion polymerization [J] European Polymer Journal, 2002, 38 (3) ：579-586.

DOI: 10.1016/s0014-3057(01)00164-1

Google Scholar

[4] Suda K, Wararuk C, Manit S: Radification of water absorption od cassava starch by acrylic acid/acrylamide [J] Radiation Physics and Chemistry, 2002, 59 (4) ：413-427.

DOI: 10.1016/s0969-806x(00)00297-8

Google Scholar