The silicone rubber composites with antimony trioxide (Sb 2 O 3 ) and melamine cyanurate (MCA) additive were fabricated. The results of scanning electron microscope are shown that the Sb 2 O 3 and MCA are uniformly dispersed into the silicone rubber (SR). It was found that tensile strength and elongation at break were down to 300% and 5.3 MPa with the increase in MCA content. The flammability of the composite was also studied by limiting oxygen index (LOI) and cone calorimetry test. The results indicated that a 31.5% LOI of the composite was achieved, and the heat release rate and total heat release values of the composite with MCA were apparently reduced compared to that without MCA. Meantime, the retention of elongation and tensile strength keeps good behavior. The time to ignition of the composite with MCA is belonged. The results show that the microstructure of combustion residue of MCA additive is continuous and smooth, and it is a good barrier to isolate combustible gas and oxygen. All these test results demonstrated that the synergistic effect of Sb 2 O 3 and MCA successfully enhanced the flame-retardant properties of the SR composite.

中文翻译：

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锑（Sb2O3）和三聚氰胺氰尿酸酯（MCA）对硅橡胶阻燃性能的协同作用

制备了含有三氧化二锑（Sb 2 O 3 ）和三聚氰胺氰尿酸酯（MCA）添加剂的硅橡胶复合材料。扫描电镜结果表明，Sb 2 O 3 和MCA均匀分散在硅橡胶（SR）中。结果表明，随着 MCA 含量的增加，拉伸强度和断裂伸长率下降到 300% 和 5.3 MPa。还通过极限氧指数 (LOI) 和锥形量热试验研究了复合材料的可燃性。结果表明，复合材料的 LOI 达到 31.5%，与未添加 MCA 的复合材料相比，添加 MCA 的复合材料的放热率和总放热值明显降低。同时，伸长率和拉伸强度的保持率保持良好。复合材料与 MCA 的点火时间属于。结果表明，MCA添加剂燃烧残渣的微观结构连续、光滑，对可燃气体和氧气有很好的隔离作用。所有这些测试结果表明，Sb 2 O 3 和MCA 的协同作用成功地提高了SR 复合材料的阻燃性能。