一、前言 KFRP(即芳纶纤维增强塑料)比强度高,有优良的抗冲击性,刚性好、比重小,所以在宇航、军事及体育用品等方面得到了广泛应用。尤其是芳纶纤维和其它纤维所制成的混杂复合材料能显著地提高材料的各种性能,因此它已发展成一种有前途的材料。为了研究复合材料的性能,必须测定其纤维含量。目前有些复合材料中纤维含量的测定已有了标准方法,然而适宜于KFRP中纤维含量的测定方法却很少介绍。 I. Introduction KFRP (Aramid Fiber Reinforced Plastics) has high specific strength, good impact resistance, good rigidity and small specific gravity, so it has been widely used in aerospace, military and sporting goods. In particular, hybrid composites made of aramid fibers and other fibers can significantly improve the properties of the material, so it has developed into a promising material. In order to study the properties of composites, the fiber content must be determined. There are standard methods for the determination of the fiber content in some composites, but the methods suitable for determining the fiber content in KFRP are rarely described.