碳纳米管/水基聚合物纳米复合材料包膜控释尿素的研制  

Preparation of multiwalled carbon nanotubes/waterborne polyacrylate nanocomposites for coated controlled release urea

作　　者：杜杰[1] 杜昌文[1] 申亚珍[1] 周子军[1] 周健民[1] 

机构地区：[1]中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室,南京210008

出　　处：《功能材料》2015年第19期19148-19152,共5页Journal of Functional Materials

基　　金：国家"十二五"科技支撑计划资助项目(2011BAD11B01-02);公益性行业(农业)科研专项资助项目(201303103)

摘　　要：以多壁碳纳米管为改性材料制备水基聚丙烯酸酯复合材料,对该材料的疏水性、力学性能和结构组成等进行了表征,继而研制复合材料包膜控释尿素,并测定包膜控释尿素养分释放特征。结果表明,添加一定量的多壁碳纳米管能够有效地改善原水基聚丙烯酸酯膜材料的疏水性及力学性质,进而有效地减小养分释放速率;当多壁碳纳米管的质量分数为0.4%时能够有效延缓包膜尿素的养分释放,延长控释期。由于碳纳米管的结构特征,使得碳纳米管/水基聚合物复合材料在包膜控释肥料的研制中具有广阔的应用前景。The MWCNTs were used as modified material to develop the waterborne polyacrylate and its coated controlled release urea.The swelling capacity,mechanical property and structural properties of materials were determined.Meanwhile,the urea releases of nanocomposite CRFs were detected.Results showed that appropriate content of MWCNTs could improve the properties of polyacrylate and the longevity of CRFs.From this research,we obtained the appropriate content of MWCNTs was about 0.4wt%.The application of MWCNTs to waterborne polyacrylate coated urea has broad prospects for development.

关 键 词：多壁碳纳米管 水基聚丙烯酸酯 纳米复合材料 包膜控释尿素 红外光声光谱 

分 类 号：O69[理学—化学] S143[农业科学—肥料学]