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首页> 外文期刊>Polimery >EFFECT OF HALOGEN FREE MODIFICATION OF EPOXY RESINS ON THEIR FIRE RETARDAN-CY LEVELS
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EFFECT OF HALOGEN FREE MODIFICATION OF EPOXY RESINS ON THEIR FIRE RETARDAN-CY LEVELS

机译:环氧树脂的无卤改性对其防火性能的影响

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摘要

Fire retardant epoxy compositions modified with halogen free flame retardants(FR)were elaborated.As FR mainly phosphorus-nitrogen compounds such as ammonium polyphosphates or melamine polyphosphates,allowing to utilize the synergy of phosphorus-nitrogen action,were used.The effects of FR type and content(both crystalline and liquid ones)on flammability of the compositions and epoxy-glass laminates were investigated.The following methods have been used:oxygen index(Tables 1-4),cone calorimeter(Fig.1)and thermogravimetry(Fig.2).Most effective flame retardant systems were selected and basic tests of their physicochemical properties before curing as well as curing time(Table 5)and mechanical properties after curing(Table 6)were done.No negative effects of FR used on the compositions properties were found.
机译:阐述了用无卤阻燃剂(FR)改性的阻燃环氧组合物。由于阻燃剂主要是磷-氮化合物,如多磷酸铵或三聚氰胺多磷酸盐,因此可以利用磷-氮作用的协同作用。研究了组合物和环氧玻璃层压板的可燃性及其含量(晶体和液体)。使用了以下方法:氧指数(表1-4),锥形量热仪(图1)和热重法(图1)。 2)。选择了最有效的阻燃剂体系,并对其固化前的理化性能,固化时间(表5)和固化后的机械性能(表6)进行了基础测试.FR对组合物性能没有负面影响被找到。

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