微胶囊化次磷酸铝阻燃玻璃纤维增强PA 6

Microencapsulated aluminum hypophosphite flame-retardant glass fiber reinforced PA 6

采用X射线光电子能谱仪及透射电子显微镜表征了自制微胶囊化次磷酸铝(T-AlHP)的包覆状况,并将其与三聚氰胺氰尿酸盐(MCA)复配阻燃玻璃纤维增强聚酰胺6(GFPA 6)。结果表明:T-AlHP表面包覆了一层囊壁材料;w(T-AlHP)为20%时,阻燃GFPA6复合材料的阻燃性能达到UL 94 V-0级,与纯GFPA 6相比,复合材料的最大质量损失速率下降6.64%/min;w(MCA)和w(T-AlHP)均为10%时,复合材料的拉伸强度、断裂拉伸应变及悬臂梁缺口冲击强度分别为126.35 MPa,3.95%,8.82 kJ/m2。

The coated condition of self-made microencapsulated aluminum hypophosphite （T-AlHP） was characterized by X-ray photoelectron spectroscopy （XPS） and transmission electron microscopy（TEM）, and the T-AlHP and melamine cyanurate（MCA） compounding system was used in flame-retardant glass fiber reinforced polyamide 6（GFPA 6）. The results show that the surface of aluminum hypophosphite is coated with wall materi-als. When the mass fraction of T-AlHP is 20%, the flame resistance of the flame-retardant GFPA 6 composites reaches level UL 94 V-0 and the maximum mass loss rate of the composites decreases by 6.64%/min in compari-son with that of the pure GFPA 6. The tensile strength, tensile strain at break and notched Izod impact strength of the composites is 126.35 MPa, 3.95% and 8.82 kJ/m2 respectively when both the T-AlHP content and MCA content are 10%.