Flame retardants present mainly organic and inorganic, halogen and non-halogen. Is brominated organic, nitrogen and phosphorus, red phosphorus and nitrogen-based compounds and represent some flame retardants, inorganic mainly antimony trioxide, magnesium hydroxide, aluminum hydroxide, silicon and other flame retardant system.
Generally, organic flame retardant has a good affinity, in plastics, brominated flame retardants in organic flame retardant system of absolute dominance, although in environmental issues, "criticized" multiport But there are other flame retardant system has been difficult to replace .
In the non-halogen flame retardant is a good red phosphorus flame retardant, has added less, flame retardant, high efficiency, low smoke, low toxicity, wide range of uses, etc.; red phosphorus and aluminum hydroxide, expanded graphite other inorganic flame retardant compound used to produce composite P / magnesium; phosphorus / aluminum; P / graphite and other non-halogen flame retardant, can significantly reduce the amount of use of flame retardants, thus improving the processing properties of plastics and mechanical properties . But the ordinary red phosphorus easily oxidized in air, moisture, dust explosion prone, difficult to transport, and poor compatibility with the polymer materials, defects in a limited range of application. To make up for this deficiency, in order to expand the scope of application of red phosphorus, we have adopted advanced foreign microencapsulation process, making microencapsulated red phosphorus. Microencapsulated red phosphorus in addition to overcoming the drawbacks inherent in the outer red phosphorus, and has high efficiency, low smoke, in the process does not produce toxic gases, their dispersion, physical and mechanical properties, thermal stability and flame retardant properties were improved and improved.
阻燃剂目前主要是有机和无机,卤素和非卤。
一般来说,有机阻燃具有良好的亲和力,在是有机溴,氮,磷,红磷和氮系化合物和代表某些阻燃剂,无机主要是三氧化二锑,氢氧化镁,氢氧化铝,硅和其他阻燃剂体系。塑料,溴化阻燃剂,有机阻燃体系中占据绝对优势,虽然在环保问题上,“批评”多但也有其他阻燃体系一直难以取代的,
在非卤素阻燃剂中红磷阻燃剂是一个很好的,具有添加量少,阻燃效率高,低烟,低毒,广泛的用途等;红磷与氢氧化铝,膨胀石墨等无机阻燃剂复配使用,以生产复合型磷/镁,磷/铝;磷/石墨等非卤阻燃剂,可以显着地减少阻燃剂的使用量,从而改善塑料的加工性能和机械性能。但是,普通的红磷容易在空气中氧化,防潮,容易产生粉尘爆炸,运输困难,与高分子材料,在一个有限的范围内的应用程序的缺陷的相容性差。为了弥补这方面的不足,以扩大红磷的应用范围,我们已经采用了国外先进的微胶囊化过程中,微胶囊化红磷。微胶囊化的红磷除克服在的外红磷的固有的缺点,并具有高效率,低发烟性,在加工过程中不产生有毒气体,其分散性,物理和机械性能,热稳定性和阻燃的阻燃性能得到改善,改善。