随着人造卫星的发展,迫切要求卫星重量轻,紧凑,高性能化,因此对复合材料的期望也日趋增高。对人造卫星用复合材料的要求是: (1) 重量轻、刚性好。为此需要用高弹性纤维(最近开发了E=50×10~3kg/mm~2的高弹性模量的碳纤维)。还可使用含量为55～65％(体积)的高密度碳纤维。由这种碳纤维制得的复合材料的比重约为1.5,弹性模量为20～25×10~3kg/mm~2。 With the development of satellites, the satellite is urgently required to be light in weight, compact in size and high in performance, so expectations for composites are also on the rise. Requirements for satellites composite material: (1) light weight, good rigidity. For this reason, it is necessary to use highly elastic fibers (recently, high-elastic modulus carbon fibers having E = 50 × 10 -3 kg / mm 2) have been developed. It is also possible to use high density carbon fibers in an amount of 55-65% by volume. The composite made from this carbon fiber has a specific gravity of about 1.5 and an elastic modulus of 20-25 × 10 -3 kg / mm 2.