Preparation and Properties of Biodegradable Slow-Release PAA Superabsorbent Matrixes for Phosphorus Fertilizers

被引：25
|
作者：
Tyliszczak, B. [1 ]
Polaczek, J. [1 ]
Pielichowski, J. [1 ]
Pielichowski, K. [1 ]
机构：
[1] Cracow Univ Technol, Dept Chem & Technol Polymers, PL-31155 Krakow, Poland
来源：
MACROMOLECULAR SYMPOSIA | 2009年 / 279卷
关键词：
hydrogels; PAA; slow release fertilizers; superabsorbents; NPK COMPOUND FERTILIZER; UREA FERTILIZER; WATER; HYDROGELS; CLAY; SOIL;
D O I：
10.1002/masy.200950534
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Biodegradable superabsorbent matrixes for a slow-release fertilizer were prepared by using crosslinked acrylic acid and water-soluble granular phosphorus fertilizer KH2PO4. The effects of the amount of crosslinker, initiator and phosphorus fertilizer concentration on water absorption were investigated and optimized. The products show excellent slow release and water-retention capacity, being nontoxic in soil and environment-friendly, and could be useful especially in agricultural and horticultural applications. The results showed that the hydrogel structure and swelling capacity was affected by various factors, such as concentration of crosslinker and initiator, as well as by the amount of KH2PO4.
引用
收藏
页码：236 / 242
页数：7
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