High temperature nanocomposites (synthetic stones) are nanomaterials compounded with nanometer size (1~100nm) in one dimension, which can be amorphous, semi crystalline, crystalline or both. It can also make organic matter, inorganic matter or both.

　　High temperature nanocomposites (synthetic stone) are widely used in aerospace, transportation, national defense, sports, electronics and other fields due to their excellent comprehensive performance, especially the designability of performance. High temperature nanocomposites (synthetic stone) have developed rapidly in recent years. The development of high temperature nanocomposites (synthetic stone) has been put in an important position in the development strategies of new materials in developed countries. This research direction mainly includes nano polymer matrix composites, carbon nanotube functional composites, and nano tungsten copper composites.
　　In terms of nano polymer matrix composites, co rotating twin-screw extrusion method is mainly used to disperse nano powder, and the dispersion level reaches the nanometer level, and nano composites with performance meeting the design requirements are obtained. Among the nano montmorillonite/PA6 composites prepared by us, the layer spacing of nano montmorillonite is 1.96nm, which is the leading level of similar materials in China. After montmorillonite is compounded into nylon matrix, it is completely peeled off into nano particles with a thickness of 1-1.5nm. High temperature nanocomposites (synthetic stone) have excellent temperature resistance, barrier performance and water absorption resistance. High temperature nanocomposites (synthetic stone) have achieved industrialization; The nano TiO2/polypropylene composite being developed has excellent antibacterial effect, and the nano TiO2 powder dispersion in polypropylene is below 60nm. This technology is being applied for a national invention patent. As the molding process of nano polymer composites is different from that of ordinary polymers, we also actively carry out research on new molding methods to promote the industrialization of nano composite materials (synthetic stone).

Carbon nanotube (CNT) is a new type of carbon cluster fiber material discovered in the early 1990s, which has many excellent properties. Our research achievements in carbon nanotubes mainly include:
　1) The technology of large-scale production of multi wall carbon nanotubes has created conditions for the industrial application of carbon nanotubes because the quality of carbon nanotubes produced is at the world's advanced level and the production cost is very low.
　2) The technology of manufacturing double electric layer capacitor with carbon nanotubes as electrode material was developed.
　3) The technology of fabricating oriented carbon nanotube film with soft substrate was developed.
　　Tungsten copper composites are widely used as electrical contact materials, electronic packaging and heat sink materials because of their good conductivity and thermal conductivity and low thermal expansion coefficient. The nano W-Cu composite material prepared by nano powder has very superior physical and mechanical properties. We have successfully prepared the nano W-Cu composite powder and nano W-Cu nitride composite powder by using the internationally leading atomization drying reduction technology of metal composite salt solution. At present, we are stepping up their industrial application research.