用废旧包装塑料生产包膜肥料的应用前景

Waste Packaging Plastics to Produce Coating Fertilizer

采用废旧包装塑料充作为控制释放肥料的包膜材料国内外未见报道。北京化工大学专利采用特殊的高聚物三级结构，将废旧聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯制成包膜肥料，它们具有增产、节肥、省工、在大自然中自行降解不妨碍耕作等优点。此法可谓变“白色”包装废弃物为“绿色肥料”。它为开辟废旧包装塑料利用的新领域、治理生态环境、防止氮肥流失、抑制稻田甲烷排放闯出了一条路子。

Weste packaging plastics used as the coating of control releasing fertilizer was investigated with the patented process using the polymers such as,polyethylene,polypropylene,polystyrene and polyvinyl chloride,to produce the coated fertilizers with the egg shell structure”.The produced fertilizer not only prevents the loss of fertilizer and saves the workforce,but also is decomposed in nature and inhibits the releasing of methane from rice-field.It is a pioneer work worldwide,which changes the “white waste plastics to green fertilizer”and opens a new way to utilize the waste packaging plastics.