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将已经设计合成的一种绿色环保有机硼阻燃剂:三(4,4’,4"-三硼酸-苯基)硼(3BzB-3B)应用于EVA材料的阻燃改性,通过对阻燃EVA材料进行热重、阻燃性能以及力学分析,探究3BzB-3B对EVA材料的阻燃机理、阻燃性能以及力学性能的影响。结果表明:阻燃剂3BzB-3B的阻燃机理属于凝聚相阻燃,在燃烧过程中可促进EVA材料炭层的形成,对提高EVA材料的阻燃性能起到良好作用;该阻燃剂的加入虽然对EVA材料力学性能有一定的弱化,但影响不大;3BzB-3B可成为一种新型的有机硼阻燃剂。
A flame retardant modified with boron (3BzB-3B) has been designed and synthesized for flame retardant modification of EVA. The effects of 3BzB-3B on the flame-retardant mechanism, flame retardancy and mechanical properties of EVA were investigated.The results showed that the flame-retardant mechanism of 3BzB-3B belongs to Condensation phase flame retardant, in the combustion process can promote the formation of carbon layer of EVA material, to improve the flame retardant properties of EVA materials play a good role; the addition of the flame retardant although the mechanical properties of EVA material to some extent, but the impact Not; 3BzB-3B can be a new type of organic boron flame retardants.