... high-speed train, and manned spaceflight, etc.The common aramid honeycomb and circuits board are all made of aramid paper .After ... 1%; even being exposed under 300°C, it will not shrink, embrittle, soften or melt; under about 400°C, they ... PropertyAramid composites have very outstanding mechanical property. For example, aramid honeycomb composites enjoy the unique rebound resilience and can also absorb ...