Explosion characteristics of polyamide dust
ZHANG Xiaoliang
ZHANG Zhikai
SHEN Qian
SONG Huijuan
XU Yueying
Abstract：In order to reveal the explosion risk of polyamide dust about automobile safety airbag,the parameters related to the explosion were obtained.Then the risk degree of explosion was graded according to the test results.The experimental result indicates that the minimum ignition energy of the polyamide dust is 15.8 MJ and the MITL is 307 ℃ and the MITC is 300 ℃.When the ignition energy is 10 kJ and the maximum explosion pressure is 0.8 MPa and the maximum explosion index is 16.59 MPa·m/s and according to the ISO6184 standard,the classification of dust explosion intensity is level of St1.Polyamide fiber powder reaction pyrolysis characteristics in the process of its volatile initial precipitation temperature of Ts is 228 ℃,the DTG peak temperature is 429.1 ℃,the maximum weight loss rate is 6.99％ per min.
Keywords：polyamide dustdust explosionmaximum explosion pressuremaximum explosion indexminimum ignition energythermogravimetric analysis
Publication Date：2016-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)