植物营养与肥料学报2024，Vol.30Issue(4)：768-785,18.DOI:10.11674/zwyf.2023382
植物油基聚氨酯包膜肥料研究进展
Research progress of plant oil-based polyurethane coated fertilizer
摘要
Abstract
Polyurethanes,the conventional coating materials used for slow-released fertilizer production,are mainly processed from petroleum-based raw materials.As the high cost and environmental risks of petroleum-based polyurethanes,bio-based polyurethanes have become the alternative coating materials in recent years.Among various bio-based materials,vegetable oil draws attention because of low price,wide source,non-toxicity and biodegradability.In this paper,we summarized the preparation methods of vegetable oil based polyols,the main categories of plant oil based polyurethane coating materials,the modification and application of slow release fertilizers coated with the plant oil based polyurethanes.The often used technologies for the procession of vegetable oil based polyols included epoxy ring-opening,transesterification,ammonolysis,hydroformylation and ozone REDOX.Such raw materials like acrylic ester,epoxy resin,silicone,fluorine modification,nanomaterials,etc.are often used for the modification of plant oil-based polyurethane coating films.Plant oil-based polyurethane coated fertilizer have been proved of advantages of reducing ammonia volatilization and nitrogen leaching,and improving nitrogen use efficiency.How to improve the degradability of plant oil-based polyurethane coating materials and the slow release capacity of fertilizer,increasing the crosslinking density of plant oil-based polyurethane,reduce the production cost,reveal the slow release mechanism and expand the application scenarios in the field trail are the focus of future research.关键词
植物油基聚氨酯/包膜材料/改性技术/缓释性能/面源污染Key words
vegetable oil-based polyurethane/coating material/modification technique/slow release property/non-point source pollution引用本文复制引用
汤建伟,毛克路,史敏,刘咏,王保明,汪洋,刘鹏飞..植物油基聚氨酯包膜肥料研究进展[J].植物营养与肥料学报,2024,30(4):768-785,18.基金项目
国家重点研发计划项目(2021YFD17009,2016YFD0300800) （2021YFD17009,2016YFD0300800）
河南省自然科学基金青年项目(242300420524). （242300420524）
