The disclosure provides strengthened products, including strengthened fibrous composite products and methods for making and using same and strengthened particulates, such as particulate fertilizer products, and methods for making and using same. The fibrous composite product can include a plurality of fibers and an at least partially cured strengthening resin. The fertilizer composition can include a particulate core that can include a plant nutrient, at least one coating layer of the strengthening resin, and at least one coating layer of a water insoluble material. The strengthening resin can include one or more aldehyde-based resins and one or more crosslinked resins. The crosslinked resin can include one or more polyamines at least partially crosslinked by one or more symmetric crosslinks and can include one or more azetidinium functional groups.
本公开提供了强化产品,包括强化纤维复合材料产品及其制造和使用方法,以及强化微粒(如微粒肥料产品)及其制造和使用方法。纤维复合材料产品可包括多种纤维和至少部分固化的强化
树脂。肥料组合物可以包括一个颗粒核心,该核心可以包括植物养分、至少一层强化
树脂涂层和至少一层
水不溶材料涂层。强化
树脂可包括一种或多种醛基
树脂和一种或多种交联
树脂。交联
树脂可包括一种或多种至少部分通过一种或多种对称交联的聚胺,并可包括一种或多种氮杂
环丁烷官能团。