| Abstract: | Microencapsuled red phosphorus (MRP), with a phenolic resin coating layer, was successfully prepared. It was characterized by Fourier‐transform infrared spectroscopy (FTIR) and Scanning electron microscope (SEM). Meanwhile its water absorption, thermostability, thermodynamic properties and critical ignition temperature (T b) have been studied. The results show that the MRP which is coated with phenolic resin can decrease the water absorption, increase thermostability and critical ignition temperature (T b) significantly, compared with red phosphorus (RP). The thermodynamic properties which include apparent activation energy (E ), pre‐exponential factor (A ), activation entropy (ΔS #), activation enthalpy (ΔH #) and Gibbs free energy (ΔG #) of RP and MRP are obtained. Moreover, the MRP can reduce the water absorption and friction sensitivity of red phosphorus smoke agent significantly with the best content of phenolic resin is 0.5 % or 1 %. |
