ABSTRACT

Modern agriculture needs multifunctional greenhouse films to meet different needs. A novel method for improving light converting properties and wettability of polyethylene film was developed in this paper. Glycerin monostearic acid itaconic acid diester (GI) with a carboxyl group and double band was synthesized. Rare earth complex Eu(GI)₃Phen with Eu³⁺ as central ion has been obtained. Subsequently, a simple strategy of grafting it onto LLDPE backbone was employed to delay the migration of Eu(GI)₃Phen. The fluorescence spectrum indicated that the modified film emitted red light. Meanwhile, the accelerated dripping time of modified film was extended to 12 days.

摘要

现代农业需要多功能的温室薄膜来满足不同的需求。本文提出了一种提高聚乙烯薄膜的光转换性能和润湿性的新方法。合成了具有羧基和双谱带的甘油单硬脂酸衣康酸二酯（GI）。获得了以Eu ³⁺为中心离子的稀土配合物Eu（GI）₃苯酚。随后，采用了将其嫁接到LLDPE骨架上的简单策略，以延迟Eu（GI）₃苯酚的迁移。荧光光谱表明改性膜发出红光。同时，改性膜的加速滴水时间延长至12天。