At present, composite materials are mainly used in the manufacture of outer and interior parts of aerospace instruments, such as seats, ribs, interior decorations, porthole, armrest, engine cover, wing, fuselage, and diversion cover. At present, the most used composite materials in the field of aerospace are carbon fiber composites.
Carbon fiber reinforced polymer (CFRP) is widely used in aerospace, rocket, missile and flight equipment for its unique, excellent and excellent physical and chemical properties. For example, aircraft, satellites, rockets and other spacecraft made of carbon fiber and resin composite materials, such as aircraft, satellites, rockets and other spacecraft, are greatly reduced in weight and noise, thereby increasing the propelling force of the product and saving a large amount of fuel.
It is widely used in aerospace, aviation, aircraft and spaceships to serve as the structural materials of the aerospace, aerospace, aircraft and spacecraft. Such as a structural material (main wing, tail, body) of an aircraft; two tectonic materials (aileron, rudder, elevator, interior decoration material, floor material, truss beam, brake pad, etc. and helicopter blades; rocket exhaust cone, engine cover, etc.; satellite structure, solar panel and antenna, launch vehicle) And missile shell) and so on. At present, the use of carbon fiber composite materials for light business aircraft flights and helicopters has accounted for 55%, while that for military aircraft is around 25%, and that of large commercial aircraft is around 20%.
The fiber material is made of fiber and resin. According to the strength of the fiber, fiber reinforced material can be divided into carbon fiber reinforced composite (CFRP) and glass fiber reinforced plastic (GFRP). In 2013, the application of carbon fiber in the space field reached 54.3% and GFRP reached 25.8%. It is expected to increase to 67.2 by 2019. %, FRP will be reduced to 17.3%.
According to different uses, the aerospace composite material can be divided into fuselage composite material, engine cover composite material, engine composite material, aircraft interior decoration composite material. In 2013, the materials used in the fuselage, aeroengine composite materials, and aircraft interior materials accounted for 64.6%, 6.9%, 28.5% respectively. Statistics indicated that in 2018, the proportion of the fuselage would reach 77.4%, of which aero engines and aircraft accounted for 4.8% and 17.8%, respectively.
Overall, carbon fiber has become a trend in the aerospace industry. In Zai2009-2016, only 09 and 11 years showed a slight decline, and the other years were a growth trend.