微胶囊化聚磷酸铵及其阻燃聚丙烯的研究进展

从聚磷酸铵（APP）的微胶囊化方法入手，以微胶囊所用囊材材料（三聚氰胺、三聚氰胺甲醛树脂、异氰酸酯聚合物、硅油以及热塑性树脂等）为主要线索，分析并讨论国内外研究微胶囊化APP所取得的成果：经三聚氰胺及三聚氰胺甲醛树脂微胶囊化后能提高APP的耐水性，并能在一定程度上提高其阻燃性能，而硅油微胶囊化后的APP具有良好的疏水性；并介绍了微胶囊化APP阻燃聚丙烯（PP）所取得的一些进展，三聚氰胺和三聚氰胺甲醛树脂微胶囊化的APP添加到PP中较一般未包覆的APP阻燃性更佳。

Research Progress in Microencapsulation of Ammonium Polyphosphate and Fire Retardancy Polypropylene

In this paper, the microencapsulation of ammonium polyphosphate (APP) was introduced according to the capsule material (melamine, melamine formaldehyde resin, isocyanate polymers, silicone oil and thermoplastic resin). While melamine or melamine formaldehyde resin encapsulation may improve the waterproof and fire retardancy of the APP, silicone oil encapsulation increased its hydrophobicity. When the encapsulated APP was introduced into polypropylene, the fire retardancy of the system was obviously enhanced compared with those based on neat APP.