EPOXY RESINS AND COMPOSITE MATERIALS EXHIBITING IMPROVED COMBUSTION PROPERTIES
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机译:环氧树脂和复合材料,具有改善的燃烧性能
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FIELD: chemistry.;SUBSTANCE: invention relates to epoxy resin-based composite materials. The epoxy resin-based composition contains: a) 50-70 wt % of a component which is an epoxy resin containing one or more epoxy resins; b) 15-35 wt % of a mixture of thermoplastic materials containing polyetherimide and polyamideimide, where the weight ratio of polyetherimide to polyamideimide ranges from 5:1 to 1:5; and c) 5-25 wt % of a component which is a curing agent, where the epoxy resin composition has sulphur dioxide release level below 100 ppm. Also disclosed is a method of preparing a composition, a component made from an uncured composite, a component made from the composite, where a matrix of the epoxy resin is cured, and a method of producing a prepreg.;EFFECT: composite materials can be used to make primary structures in aircraft and other load-bearing structures, characterised by good self-extinguishing time.;21 cl, 2 dwg,18 ex
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机译:技术领域本发明涉及基于环氧树脂的复合材料。所述基于环氧树脂的组合物包含:a)50-70重量%的成分,所述成分是包含一种或多种环氧树脂的环氧树脂。 b)15-35wt%的包含聚醚酰亚胺和聚酰胺酰亚胺的热塑性材料的混合物,其中聚醚酰亚胺与聚酰胺酰亚胺的重量比为5∶1至1∶5; c)作为固化剂的成分的5〜25重量%,其中环氧树脂组合物的二氧化硫释放量低于100ppm。还公开了制备组合物的方法,由未固化的复合材料制成的组分,由该复合材料制成的组分,其中环氧树脂的基体被固化的方法以及制备预浸料的方法。用于制造飞机和其他承重结构的主要结构,具有良好的自熄时间。; 21 cl,2 dwg,18 ex
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