阻燃剂用超细氢氧化铝的制备、应用及展望

超细氢氧化铝具有阻燃、消烟、填充多种功能,是一种重要的无机环保型阻燃材料。超细氢氧化铝粉体不仅本身是一种功能材料,而且为新材料的开发提供了广阔的应用前景,在国民经济许多领域有着极其重要的作用。超细氢氧化铝阻燃和消烟机理是由于其受热后分解,放出结晶水,并吸收大量的热,分解生成的氧化铝与其它炭化物一起形成一道阻燃屏障。超细氢氧化铝制备方法分为机械法和化学法,但化学法制备的产品粒度细、分布均匀。本文中还对超细氢氧化铝阻燃剂的未来发展进行了展望。

Preparation, Application and Development of Superfine Al(OH)3 Retarder

The super-fine aluminum hydroxide is an important green flame retardant inorganic material with multi-function of retarding, suppressing smoke and filling. The super-fine Al(OH)3 has played an important role in many fields of the national economy. Not only is the super-fine ATH powder a kind of functional material, but also it provides wide applied foreground for developing of new materials.The mechanism of Al(OH)3 retarder and suppr- essing smoke is that the decomposing reaction of Al(OH)3 gives out all of its combinative water and absorbs vast quantity of heat when ATH is heated to decompose and the alumina formed from Al(OH)3 decomposing forms alayer of barrier accompanying with other carbides. The producing process of the super-fine Al(OH)3 includes the mechanical process and the chemistry proc- ess. The particle size of product made by the chemistry process is very fine and the particle size distribution is uniform. The development trend of super-fine Al(OH)3 is reviewed briefly .