一种新型复合阻燃剂的制备及性能研究

摘要

ZnSiO3与Mg(OH)2复配成复合阻燃剂,研究了阻燃剂用量对PVC的阻燃性能及力学性能的影响.结果表明,最佳改性工艺配方为:PVC 100份,邻苯二甲酸二辛酯40份,有机锡稳定剂1份,偶联剂1份,硬脂酸钙1份,复合阻燃剂20份[ZnSiO3∶ Mg(OH)2=1∶9],在此条件下,样品的氧指数可达31.8,且对PVC的物理力学性能影响很小.%ZnSiO3 and Mg( 0H)2 were used to prepare a composite flame retardant agent. A series of mechanical properties, combustion performance test and flame retardant mechanism research were conducted. The results showed that the optimal formula for the modification were:PVC 100 copy,DOP 40 copy, organic tin stabilizer 1 copy,coupling agent 1 copy,calcium stearate 1 copy and the composite flame retardant was added to 20 copy, the physical and mechanical properties of PVC changed little, while the oxygen index of PVC samples can reach 31.8.