阻燃剂对聚碳酸酯透明性能的影响

以透明聚碳酸酯（PC）为基础树脂，在保持PC优异的力学性能和高透明性能的前提下，分别制备了磺酸盐类阻燃剂、硅油类阻燃剂以及两者复配型阻燃剂改性的3组PC体系，测试了PC的阻燃等级及透明性并通过SEM探讨了阻燃机理。研究表明：单独添加质量分数为0.1%的磺酸盐类阻燃剂可使PC阻燃等级达到V-0级并保持良好的力学性能及透明性；单独添加质量分数为1%的硅油类阻燃剂仍能保持PC良好的力学性能及透明性，但是阻燃等级无法达到V-0级；复配质量分数0.05%～0.1%的磺酸盐类阻燃剂及质量分数为0.5%～1%的硅油类阻燃剂，可使PC阻燃等级达到V-0级，并能保持良好的力学性能及透明性，此外复配之后燃烧形成的碳层阻燃效果更好。

Effect of Flame Retardant on Performance of

Sulfonate flame retardants, silicone flame retardants and mixture of them were added to polycarbonate resin to improve its flame retardant properties. Results indicated that flame retardant grade of polycarbonate was improved to V-0 by adding 0.1% sulfonate flame retardants. By adding 1% silicone flame retardants, the polycarbonate maintained good mechanical properties and transparency, but failed to achieve V-0.However, by adding sulfonate flame retardants ranging from 0.05% to 0.1% and silicone flame retardants ranging from 0.5% to 1% at the same time, the flame retardant grade of polycarbonate achieved V-0 with maintaining excellent mechanical properties and high transparency. The carbon layer which was formed after adding both of two kinds of flame retardants, had the excellent flame retardant properties.