Aerospace advanced composite materials are a kind of key materials applied in the extreme service environment of “bullet, rocket, star, ship, instrument, station and institute”, which are the material foundation and technological forerunner for the development of spacecrafts, as well as an important symbol for measuring the advancement and reliability of spacecrafts. Especially in the 21st century, with the vigorous development of various new types of spacecraft in the fields of hypersonic speed, air and space round-trip and deep space exploration, the role of advanced composite materials in supporting the foundation of spacecraft has become more and more prominent, and even determines whether the equipment is available or not and whether it is advanced or not.
1、Ceramic-based thermal structure materials
Ceramic-based thermal structure material is a composite material composed of ceramic matrix and fiber reinforced phase, with high specific strength, specific modulus and excellent high-temperature mechanics, oxidation and ablation resistance, which is an ideal thermal structure material for spacecraft. The United States and Europe have long recognized the important application value of ceramic matrix composites. Through the continuous support of a series of research programs, many breakthroughs have been made in high-quality raw materials, composite material design, preparation processes and engineering applications. For example, in February 2015, the European IXV test vehicle flight success, its thermal protection system head cone, windward surface large area, wing leading edge and body flaps are used C/SiC composite materials, can meet the service requirements of more than 1600 ℃, the size of thin-walled shaped components to the meter scale, reflecting a very high level of preparation process, the technology maturity is higher.2, ultra-high temperature low ablation heat protection materials
Ultra-high temperature and low ablation heat protection materials are mainly used in the end of the space vehicle, leading edge and other parts of the thermal environment. Based on carbon fiber reinforced modified carbon matrix or ultra-high temperature ceramic matrix composites is an important system of ultra-high temperature low ablation heat protection materials.C/C composites have excellent chemical stability and mechanical properties under inert conditions, but oxidation occurs above 400 ℃, which restricts the use of high-temperature aerobic environment. By adding antioxidant modification components to the carbon matrix, the oxidation and ablation resistance of C/C composites can be significantly improved.
3、Resin-based lightweight ablative heat-resistant materials
Resin-based ablative heat-resistant material is a kind of functional composite material developed to adapt to the thermal environment of spacecraft, which is used to protect the structure of the vehicle from ablation in the aerodynamic thermal environment, and is characterized by high heat-resistant efficiency, large specific heat capacity, low thermal conductivity, short preparation cycle and low cost. In recent years, with the development of new aircraft technology, resin-based ablative heat protection material lightweight and multifunctionalization technology has developed rapidly, becoming the research hotspot of this kind of material, promoting the technological progress and expanding the field of application.

Room termperature curing polysilazane, pls check IOTA 9150, IOTA 9150A. 
High termperature curing polysilazane, pls check IOTA 9108, IOTA 9118.