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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (7): 284-289.

• 植物保护 农药 • 上一篇    下一篇

含磷农用保水剂的制备及性能研究

王雪郦 邱树毅   

  • 收稿日期:2010-08-09 修回日期:2010-10-14 出版日期:2011-04-05 发布日期:2011-04-05

Study on Preparation and Properties of Phosphoric Agricultural Absorbent Resin

  • Received:2010-08-09 Revised:2010-10-14 Online:2011-04-05 Published:2011-04-05

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摘要：

【研究目的】为了修复土壤墒值，缓解干旱对我省作物和林木的影响，制备一种含磷农业保水剂；【方法】采用水溶液聚合法，以磷尾矿粉作为主要添加量,以N,N'—亚甲基双丙烯酰胺为交联剂，过硫酸铵为引发剂，丙烯酰胺（AM)和部分中和的丙烯酸(AA)为单体；【结果】经实验优化，当聚合温度为75oC，单体中和度为60%，丙烯酸浓度为15%，AA与AM质量比为4：1，引发剂用量为单体质量的0.5%，交联剂用量为单体质量的0.02%，磷尾矿粉添加量为10g时制备的保水剂，其吸蒸馏水量为621g/g，吸盐水量为52.71g/g；【结论】通过本实验，研制出一种含磷农用保水剂，除具有保水复墒作用外，还可以累计释放磷元素，帮助作物生长的同时，还能缓解磷尾矿粉对环境造成的压力。

关键词: 烤烟, 烤烟, 标准体系, 化学成分, 土壤养分

Abstract:

【OBJECTIVE】In order to repair soil moisture, remit the influence to crops and forest that was brought by drought, prepared a kind of phosphoric agricultural absorbent resin;【METHOD】The resin was synthesized by aqueous solution polymerization, adopted N,N'-methylene-bis-acrylamide as crosslinking agent, ammonium persulfate as initiator dosage, acrylamide(AM) and part-neutralised acrylic acid(AA) as raw material, during this preparation added some phosphorus power; 【RESULTS】After the system experiments,when the polymerization temperature was 75oC, the neutralization degree of acrylic acid was 60%,the concentration of acrylic acid was 15%, the ratio between acrylamide and acrylic acid was 4：1, the amount of initiator dosage was 0.5%，the amount of crosslinker agent was 0.02%，the amount of phosphorus power was 10 , the water absorption was 621g/g and 52.71g/g in distilled water and saline water;【CONCLUSION】Through this experiment, phosphoric agricultural absorbent resin was prepared, it not only good for water retention ,but also good for release phosphorus after a long run, which was do well in agriculture, even it was do well in environmental protection.