编号
020025803
推送时间
20200928
研究领域
林产化工
年份
2020
类型
期刊
语种
英语
标题
Development history and synthesis of super-absorbent polymers: a review
来源期刊 Journal of Polymer Research
期
第258期
发表时间
20200506
关键词
Super-absorbent polymers;
Cross-linked;
Swelling;
Preparation;
摘要
Super-absorbent polymers (SAPs) refer to a three-dimensional network polymer, water-swellable, water-insoluble, organic or inorganic material that can absorb thousands of times its own weight of distilled water. It is widely used in various fields, such as: agricultural, biomedical, daily physiological products, separation technology and wastewater treatment. In the review, the development history of superabsorbent polymers since 1961 is described, and the polymerization methods of superabsorbent polymers and the wide-ranging use of this type of polymers in life are described in detail. The article introduces four basic polymerization methods, bulk polymerization, solution polymerization, suspension polymerization and radiation polymerization from the preparation methods and types. Not only the detailed methods of polymerization but also their respective advantages and disadvantages are introduced. In recent years, new progress has been made in polymerization methods, for example, in-situ polymerization to obtain an onion-like multilayer tube cellulose hydrogel. The hydrogel has super-absorbent properties, and the water swelling mechanism is briefly introduced. Finally, the latest advances in super-absorbent polymers are pointed out.
服务人员
尚玮姣
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