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研制耐高温的轻型刚性结构是航空航天工业的主要目标。最近意大利飞机公司正从事一个大型项目,来探索适合航空器和航天器未来应用的新材料。正在研制用铝、镁或钛合金作为基体材料的轻型金属基复合材料。碳纤维增强塑料的重量、刚度和强度性能参数大有希望。现在市场上大批供应弹性拉伸模量高于800Gpa 的超高模量的碳纤维和拉伸强度高迭5·0Gpa 的高应变纤维。在树脂材料系列中,除传统的环氧树脂外,已研制出具有耐热特点的新材料,例如,热固性材料中的双马来酰亚胺和聚酰亚胺及一些有希望的热塑性塑料。意大利飞机公司正在进行高模量碳纤维复合材料热机特性的试验,这种复合材料是由法国斯特鲁蒂尔公司研制的一种新的热固树脂,聚苯乙烯氯杂苯制成。初步结果似乎很鼓舞人心,但是仍有必要进行更深入的研究。
The development of lightweight, rigid structures resistant to high temperatures is a major goal of the aerospace industry. Recently, Italian aircraft companies are engaged in a large-scale project to explore new materials suitable for the future application of aircraft and spacecraft. Light metal matrix composites are being developed using aluminum, magnesium or titanium alloys as the matrix material. Carbon fiber reinforced plastic weight, stiffness and strength of the performance parameters are promising. Now on the market a large number of supply elastic tensile modulus higher than 800Gpa ultra-high modulus carbon fiber and high tensile strength Diego Diego high 7.0Gpa fiber. In the family of resin materials, in addition to the traditional epoxy resins, new materials with heat resistance characteristics have been developed, such as bismaleimides and polyimides in thermosets and some promising thermoplastics. Italian aircraft company is conducting high-temperature carbon fiber composite heat engine test, the composite material is a new thermosetting resin developed by the French Stroitel company, made of polystyrene chloride. The preliminary results seem encouraging but there is still a need for more in-depth research.