Liu Zirui, Pang Minhui, He Wentian, Zhang Feng, Liu Shuxia, Li Lixia
Institute of Plant Nutrition, Resources and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China.
College of Resources and Environment, Jilin Agricultural University, Changchun, Jilin 130118, China.
ACS Omega. 2025 Jul 23;10(30):32626-32636. doi: 10.1021/acsomega.5c03193. eCollection 2025 Aug 5.
Polymer coated fertilizers (PCFs) play a crucial role in the sustainable development of precision agriculture. However, conventional petroleum-based coating materials for PCFs are non-degradable and depend on non-renewable resources. Thus, biobased coatings, particularly those derived from vegetable oils, are promising alternatives. This review presents an innovative classification of vegetable oils based on their chemical structure, specifically whether they contain natural hydroxyl groups or require hydroxylation modification. By leveraging data from the Web of Science database, we systematically analyze the research progress of vegetable oil-based polyurethane coated urea from 2005 to 2024. Hydroxyl modification strategies for vegetable oils lacking natural hydroxyl groups are explored. Preparation processes and controlled-release properties of polyurethane coated urea made from both types of vegetable oils are included. Furthermore, aiming at potential coating defects, various modification strategies and their practical effects are evaluated in detail. These insights provide a systematic reference for raw material selection and formulation optimization of vegetable oil-based coated urea. While summarizing the key research achievements, this review comprehensively describes the future challenges faced by the practical application of vegetable oil-based polyurethanes in this field, and proposes potential breakthrough paths based on material innovation and process optimization.
聚合物包膜肥料（PCFs）在精准农业的可持续发展中发挥着关键作用。然而，用于PCFs的传统石油基包膜材料不可降解且依赖不可再生资源。因此，生物基包膜，特别是那些源自植物油的包膜，是很有前景的替代品。本综述基于植物油的化学结构，特别是其是否含有天然羟基或需要羟基化改性，提出了一种创新的植物油分类方法。通过利用科学网数据库的数据，我们系统地分析了2005年至2024年植物油基聚氨酯包膜尿素的研究进展。探索了缺乏天然羟基的植物油的羟基化改性策略。包括了由这两种植物油制成的聚氨酯包膜尿素的制备工艺和控释性能。此外，针对潜在的包膜缺陷，详细评估了各种改性策略及其实际效果。这些见解为植物油基包膜尿素的原料选择和配方优化提供了系统参考。在总结关键研究成果的同时，本综述全面描述了植物油基聚氨酯在该领域实际应用所面临的未来挑战，并基于材料创新和工艺优化提出了潜在的突破路径。
