Refinement and performance of K₂TNR

The ultrafine K₂TNR with particle size less than 10 μm was prepared by the method of microemulsion. In the process of synthesizing K₂TNR, graphene nanopaper was added, and the sample G-K₂TNR got. The electronic microscope and online size tester were used to characterize the morphology and size distribution. Thermal stability of three different K₂TNR samples were analysed by differential scanning calorimetry(DSC) and dynamic vacuum stability test(DVST). Their 5s delay explosion temperatures were tested. The results show that the decomposition temperature of thinning K₂TNR and G-K₂TNR is advanced. The vacuum stability of thinning K₂TNR is preferable. At the same time, the heat sensitivity of thinning K₂TNR and G-K₂TNR are improved obviously.