جستجوی مقالات مرتبط با کلیدواژه "تخلیه بار ساکن" در نشریات گروه "مواد و متالورژی"

Being non-polar and considerably high electrical resistivity are significant drawbacks of the crystalline paraffin wax used for desensitizing energetic materials. Herein, as a practical approach to improve the wax properties, maleic-anhydride was reacted with paraffin wax in the presence of a free-radical initiator. Then, the reaction success was approved by employing Attenuated Total Reflection-Fourier Transform Infrared (ATR-FTIR) to spot carboxyl groups onto the aliphatic backbone. In addition, the thermal properties of the modified wax were investigated using differential-scanning-calorimetry and thermogravimetry analysis (DSC-TGA). Finally, to estimate the improvement in the wax polarity, an experiment was designed in which HMX coated via a two-step procedure was conducted for DSC and tribocharing tests. The second layer utilized 0.5 w% glyceline as a deep eutectic solvent (DES). In brief, our observation exhibited that the modified wax caused a 50% decrease in charge accumulation compared to the unmodified paraffin. In addition, our experimental outcomes .showed that the modified paraffin exhibited a better distribution over the substrate surface than the unmodified one.

The investigation and identification of principles and basics for electrostatic discharge is one of the most important possibly hazards in the field of high- energetic materials and other industries, in order to prevent the risk of explosions, as well as to consider effective solutions to control and reduce these risks. In this paper, the principles and mechanisms of electrostatic discharge, its types and the sensitivity of various types of high-energetic materials to electrostatic discharge have been studied first. Then, the method of assessing the electrostatic discharge phenomenon from the production, separation and accumulation of static charges to the requirements for occurrence of electrostatic discharge and the initiation of the existing combustible compounds and, finally, the occurrence of an explosion by ESD, and at the end the basics and principles of control and Reducing the dangers of static electricity to enhance safety in environments that work with highenereitic materials.