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纤维增强塑料在低温下的比强度比金属高得多,其绝热性能和电绝缘性能也比金属好得多,且韧性好,容易制作成型,为节省运载工具和飞行器的重量提供了极大的可能,因此二十多年来一直受到航天工业部门的重视。 随着航天事业的发展,低温高能推进剂的使用,对低温用结构材料提出了新的要求,迫切需要适用于液氧(-183℃)和液氢(-253℃)温度范围的轻重量复合材料。其中,玻璃、硼
Fiber reinforced plastics at low temperatures, the specific strength is much higher than the metal, its thermal insulation properties and electrical insulation properties are much better than metal, and toughness, easy to make molding, to save the weight of vehicles and aircraft to provide a great Possibly, it has been valued by the aerospace industry for more than two decades. With the development of aerospace industry, the use of low-temperature and high-energy propellants has put forward new requirements for structural materials with low temperature. There is an urgent need for a light-weight composite suitable for the temperature range of liquid oxygen (-183 ° C) and liquid hydrogen (-253 ° C) material. Among them, glass, boron