Preparation of High Water Absorption and Retention Material by Graft Copolymerization of Calcium Lignin Sulphonate with Acrylic Acid and Acrylamide

Xiao Feng Yang; Xing Guo Yu; Qun Hu Xue; Zai Yong Zhang

doi:10.4028/www.scientific.net/AMR.535-537.1060

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 535-537Preparation of High Water Absorption and Retention...

Preparation of High Water Absorption and Retention Material by Graft Copolymerization of Calcium Lignin Sulphonate with Acrylic Acid and Acrylamide

Abstract:

High water absorption material was prepared by graft copolymerization of calcium lignin sulphonate with acrylic acid and acrylamide. Effect of process parameters on graft copolymerization and sample properties was investigated by means of the single-factor method, and the microstructure of fracture surface of the water absorbent resin was analyzed by SEM. The result shows that: when mass percents of acrylic, acrylamide, calcium lignin sulphonate, initiator and crosslinking agent are 65.5%, 19.5%, 15%, 0.09%, and 0.05%, respectively, and neutralization degree is 60% with 2h of initiation reaction time and 1.5h of crosslinking reaction time. The water absorption rate of material is up to 1010g/g, and 0.9wt% NaCl solution absorption rate is up to 110g/g.

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Periodical:

Advanced Materials Research (Volumes 535-537)

Pages:

1060-1064

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.535-537.1060

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Online since:

June 2012

Authors:

Xiao Feng Yang, Xing Guo Yu, Qun Hu Xue, Zai Yong Zhang

Keywords:

Calcium Lignin Sulphonate, Graft Copolymerization, Water Absorption

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References

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