| 一种淀粉基互穿网络型缓释肥包膜材料的制备及性能研究 |
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| 引用本文： | 徐浩龙,党民团,卢国锋. 一种淀粉基互穿网络型缓释肥包膜材料的制备及性能研究[J]. 应用化工, 2011, 40(5): 811-813 |
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| 作者姓名： | 徐浩龙 党民团 卢国锋 |
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| 作者单位： | 渭南师范学院化学化工系,陕西渭南,714000 |
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| 基金项目： | 陕西省教育厅专项科研项目，渭南师范学院专项科研项目 |
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| 摘 要： | 采用水溶液聚合法,以甲醛为交联剂,通过淀粉与甘油、100-37H型聚乙烯醇(PVA)多元共聚、交联,制备了一种生物降解性好的互穿网络型缓释肥包膜材料。结果显示,淀粉、甘油、甲醛和PVA的最佳质量分数比率为:20∶4.5∶6.0∶12;包膜材料所制缓释尿素缓释周期达60～80 d,符合GB/T23348—2009规定的缓释效果,其释放机制可能为溶胀-扩散释放机理。
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| 关 键 词： | 生物可降解 淀粉 尿素 缓释肥 |
Preparation of an amylaceous IPN-resin and the application to slow release fertilizer |
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| XU Hao-long,DANG Min-tuan,LU Guo-feng. Preparation of an amylaceous IPN-resin and the application to slow release fertilizer[J]. Applied chemical industry, 2011, 40(5): 811-813 |
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| Authors: | XU Hao-long DANG Min-tuan LU Guo-feng |
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| Affiliation: | XU Hao-long,DANG Min-tuan,LU Guo-feng(Department of Chemistry and Chemical Engineering,Weinan Teachers University,Weinan 714000,China) |
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| Abstract: | One biodegradable plastic film was prepared from amylum,trihydroxypropane,polyvinyl alcohol and formaldehyde by the method of copolymerization and cross-linking.The results showed the optimal mass ratio of four amylum,trihydroxypropane,polyvinyl alcohol and formaldehyde was 20∶4.5∶6.0∶12,slow-release time of urea was 60～80 d,which met the technological standards of GB/T23348—2009.The release mechanism of the fertilizer was supposed to be dissolving/expanding-diffusion by urea dissolution curve. |
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| Keywords: | biodegradable amylum urea slow release fertilizers |
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