基于反应成膜技术的水基丙烯酸酯乳液包衣控释肥料的研制(英文)

被引：8

作者：

申亚珍

赵聪

周健民

杜昌文

机构：

[1] StateKeyLaboratoryofSoilandSustainableAgriculture,InstituteofSoilScience,ChineseAcademyofSciences

来源：

ChineseJournalofChemicalEngineering | 2015年 / 23卷 / 01期

关键词：

Controlled release fertilizer; Acrylic emulsion; Siloxane; Crosslinker; Reacted layer technology;

D O I：

暂无

中图分类号：

TQ449.1 [];

学科分类号：

0817 ;

摘要：

Waterborne acrylic emulsions modified with organic siloxanes and aziridine crosslinker were synthesized and applied as coating of controlled release fertilizer. The free films were characterized and the nutrient release profiles of the coated fertilizers were determined. The results show that methyl silicone oil and methylsilanolate sodium could not improve water resistance performance and glass transition temperature Tgof coatings, while the firmness is enhanced. Aziridine crosslinker improves the water resistance performance, firmness and Tg. Incorporation of methyl silicone oil and aziridine crosslinker gives an excellent aqueous acrylic emulsion for coated controlled release fertilizer, with the 30-day cumulative nutrient release reduced to 16% and an estimated nutrient release duration over 190 days. Therefore, this waterborne coating is promising to meet the requirements for controlled release of nutrient and environmental protection.

引用

页码：309 / 314

页数：6

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