摘要
以强极性有机胺为反应介质,通过三聚氰胺与多聚磷酸的成盐反应一步合成磷氮复合型阻燃剂三聚氰胺聚磷酸盐(MPP)。考察了反应温度、反应时间和加料方式等对MPP阻燃玻纤增强尼龙66性能的影响,发现在MPP质量分数为25%时所得材料的阻燃性能达到UL94(1.6mm)V-0级,拉伸强度和缺口冲击强度分别达120MPa和6.7kJ/m2。研究了体系的阻燃机理,为解决玻纤增强尼龙材料的玻纤“烛芯效应”及阻燃材料难以兼具阻燃性能和力学性能的难题提供了新方法。
Melamine polyphosphate （MPP） was prepared in an organic amine solvent from melamine and polyphosphorous acid（PHPO） through only one step. The influences of reaction temperature, reaction time, and adding fashion of PHPO solution on the properties of the material were investigated. The obtained MPP possessed excellent flame retardaney for glass fiber reinforced PA66, achieving UL94（ 1.6 ram） V -0 rating with 25% of MPP and 30% of glass fiber, and the material exhibited pretty good mechanical properties, with tensile strength 120 MPa and notched impact strength 6.7 kJ/m^2. The flame retardant mechanism of this system was investigated, and this method provided a new approach to solve the problems including weakening ＂candlewick effect＂ of glass fiber and retaining the mechanical properties of material as high as possible when it obtained the flame retardancy.
出处
《工程塑料应用》
CAS
CSCD
北大核心
2007年第3期4-7,共4页
Engineering Plastics Application
基金
国家"863"计划资助项目(2002AAA333070)
