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Ecological issue of polymer flame retardancy

机译:聚合物阻燃性的生态问题

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The use of polymer flame retardants has An important role in saving lives. The main flame retardant systems for polymers currently in use are based on halogenated, phosphorous, nitrogen, and inorganic compounds. All of these flame retardant systems basically inhibit or even suppress the combustion process by chemical or physical action in the gas or condensed phase. Conventional flame retardants, such as halogenated, phosphorous, or metallic additives, have a number of negative attributes. An ecological issue of the application of conventional flame retardants demands the search of new polymer flame retardant Systems. Among the new trends of flame retardancy are intumescent systems, polymer nanocomposites, preceramic additives, low-melting glasses, different types of char formers, and polymer morphology modification processing. The brief explanations on the three major types of flame retardant systems (intumescent systems, polymer nanocomposites, and polymer organic char formers) are the subject of this overview. (C) 2002 Wiley Periodicals, Inc. [References: 39]
机译:聚合物阻燃剂的使用在挽救生命方面具有重要作用。当前使用的聚合物的主要阻燃体系基于卤代,磷,氮和无机化合物。所有这些阻燃剂系统基本上都通过气相或冷凝相中的化学或物理作用抑制或什至抑制燃烧过程。常规的阻燃剂,例如卤化,磷或金属添加剂,具有许多负面特性。常规阻燃剂应用的生态问题要求寻找新的聚合物阻燃剂系统。阻燃性的新趋势包括膨胀体系,聚合物纳米复合材料,陶瓷前添加剂,低熔点玻璃,不同类型的成炭剂和聚合物形态改性工艺。对三种主要类型的阻燃系统(膨胀系统,聚合物纳米复合材料和聚合物有机成炭剂)的简要说明是本概述的主题。 (C)2002 Wiley Periodicals,Inc. [参考:39]

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