ZHANG Xiaoliang1 ， ZHANG Zhikai1 ， SHEN Qian1 ， SONG Huijuan1 ， XU Yueying2
（1.College of Urban Construction & Safety Engineering， Shanghai Institute of Technology， Shanghai 201418， China； 2. Shanghai Shipyard Co.， Ltd，Shanghai 202150， China）
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 k J 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 dust; dust explosion; maximum explosion pressure; maximum explosion index; minimum ignition energy; thermogravimetric analysis
文章编号：1008-5548（2016）03-0022-05
DOI：10.13732/j.issn.1008-5548.2016.03.005
收稿日期：2015-07-14， 修回日期：2016-05-16，在线出版时间：2016-06-22。
基金项目：国家自然科学基金,编号：51304137；上海市联盟计划，编号：LM201360。
第一作者简介：张小良（1978—），男，副教授，硕士生导师，博士，研究方向为通风、除尘及爆炸防护、应急管理。 E-mail：yyyzxl@126.com。
