Research Progress of Superabsorbent Polymers Applicable to Agriculture and Forestry

doi:10.11924/j.issn.1000-6850.casb2022-0225

Abstract

Abstract:

Water-retaining agent, also known as superabsorbent polymer, has the ability of absorbing water and controlling the release of fertilizer, and can promote the growth of plants. Water-retaining agents can be synthesized from synthetic polymers, natural polymers, and combinations of organic and inorganic materials. The synthesis of water-retaining agent includes physical, chemical and hybrid bonding, which is mainly realized by bulk polymerization, solution polymerization, inverse suspension polymerization, radiation polymerization and other methods. Based on this, the basic concept, properties, mechanism of action, synthesis methods and classification of water-retaining agents are reviewed, and some existing problems are also discussed in this paper. It is pointed out that the future research focus of water-retaining agent should be on high salt resistance, reusable property and mass production potential.

Key words: water-retaining agent, superabsorbent polymer, mechanism of action, synthesis method, classification

LIU Yana, E Shengzhe, WANG Lanying, MA Xiaofeng, YUAN Jinhua, ZHANG Peng, LU Gangbin, YE Gengkang, ZHAO Tianxin, WANG Yuxuan. Research Progress of Superabsorbent Polymers Applicable to Agriculture and Forestry[J]. Chinese Agricultural Science Bulletin, 2023, 39(6): 82-89.

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