误区一：阻燃剂用量越多，阻燃效果越好 Myth: the more the flame retardant, the better the flame retardant 　　极限氧指数及UL-94测试实验表明，材料的阻燃性能与阻燃剂的用量有一定的关系。随着阻燃剂添加量的增多，阻燃效果呈现出先增强后减弱的趋势，且加入过多的阻燃剂对材料的力学性能具有较大的影响。 The limit oxygen index and the ul-94 test showed that the flame retardant properties of the material had a certain relationship with the dosage of flame retardant. With the increase of the addition of flame retardant agents, the flame retardant effect shows the trend of decreasing first, and adding too many flame retardants has a great influence on the mechanical properties of the material. 　　误区二：溴系阻燃剂是对人体和环境是无害的 Myth 2: bromine flame retardants are harmless to the human body and the environment 　　溴系阻燃剂包括70多个品种，绝大多数溴系阻燃剂经过严格评估证明对人体及环境无害，但有个别结构溴系阻燃剂在一定条件(比如不完全燃烧)下燃烧能形成二噁英。二噁英包括210种化合物，这类物质非常稳定，熔点较高，极难溶于水，可以溶于大部分有机溶剂，是无色无味的脂溶性物质，所以非常容易在生物体内积累，对人体危害严重。 Bromine flame retardants including more than 70 varieties, the vast majority of the bromide flame retardants prove harmless to the human body and the environment through strict assessment, but there are individual structure of bromine flame retardants under certain conditions, such as incomplete combustion combustion can form dioxins. Dioxin including 210 compounds, this kind of material is very stable, high melting point, extremely difficult to dissolve in water, can dissolve in most organic solvents, is a colorless, odorless fat-soluble substances, so very easy accumulated in organisms, severely harmful to the human body. 　　误区三：阻燃等级越高越好 Myth: the higher the grade, the better 　　不同用途对阻燃性有不同要求，一般说来，人们总希望材料的阻燃性级别高一些。但事实上各种阻燃测试方法都有其局限性，其结论都是相对的。因此并不是阻燃级别越高越好，例如通常认为UL94V-0级的材料比V-2级的好。然而某些电器产品要求材料具有抗电弧点燃性，这时V-2级就比V-0级好。因为94V-2 级塑料不会在电作用下形成导电而结焦，从而大大降低了着火的可能性，而94V-0级塑料则相反。 Different USES have different requirements for flame retardation, generally speaking, people always hope the flame retardant level of the material is higher. But in fact, all kinds of fire retardant testing methods have their limitations, and their conclusions are relative. Therefore, the higher the flame retardant level is, the better, for example, that the UL94V - 0 class is generally considered to be better than the v-2 level. However, some electrical products require that the materials have anti-arc ignition. At this point, v-2 is better than v-0. Because 94v-2 plastic does not produce a conductive coking under the electrical action, it greatly reduces the likelihood of fire, while 94v-0 is the opposite.