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| 抗氧剂1010粉尘燃爆特性及热稳定性分析 |
| Study on explosion characteristics and thermal stability of antioxidant 1010 dust |
| 投稿时间：2025-03-07 修订日期：2025-11-04 |
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| DOI： |
| 基金项目:广东省市场监督管理局科技项目（XMBH20240428025）；广东省市场监督管理局科技项目（2024CT19） |
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| 中文关键词: 抗氧剂1010 粉尘爆炸 燃爆特性 热稳定性 动力学分析 |
| 英文关键词:antioxidant 1010 dust explosion explosive properties thermal stability kinetic analysis |
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| 中文摘要: |
| 抗氧剂1010是一种广泛应用于高分子材料加工中的添加剂,但其粉尘爆炸危险性尚未得到系统性的研究。为探究其爆炸特性及热稳定性，采用粉尘燃爆试验装置及差热分析仪，分别探究了抗氧剂1010的爆炸特性参数和热分解动力学。结果表明：抗氧剂1010粉尘为非导电性粉尘，D50=24.1 mm的粉尘云最小点火能为1~2 mJ，爆炸下限为10~20 g/m3，爆炸极限氧浓度为11%，最大爆炸压力为0.78 MPa，爆炸指数为13.08 MPa·m/s；粉尘云最低着火温度为440 ℃，粉尘层最低着火温度大于400 ℃；在N2氛围下约在304 ℃左右开始发生热分解，放热约3634.33 J/g，通过Coats-Redfern法得出粉尘的活化能为22.99 kJ/mol。研究结果表明抗氧剂1010是一种点火能敏感度高、热分解危险性强的粉尘，建议粉尘涉爆场所选择T2组，IIIB级防爆电气设备。 |
| 英文摘要: |
| Antioxidant 1010 is a commonly used additive in polymer processing, yet its dust explosion hazards have not been extensively studied. To investigate its explosion characteristics and thermal stability, combustion tests and differential thermal analysis were conducted to determine the explosion characteristics and thermal decomposition behavior of Antioxidant 1010.?The results indicate that Antioxidant 1010 dust is non-conductive, the minimum ignition energy of the dust cloud a D50 of 24.1 μm was 1~2 mJ, the lower explosion limit was 10~20 g/m3, the limiting oxygen concentration was 11%, the maximum explosion pressure reached 0.78 MPa, and the explosion index was 13.08 MPa·m/s. The minimum ignition temperature was 440 °C for the dust cloud and above 400 °C for the dust layer. Under a nitrogen atmosphere, thermal decomposition initiated at approximately 304 °C with a heat release of approximately 3634.33 J/g. The activation energy, calculated using the Coats-Redfern method, was 22.99 kJ/mol. These findings indicate that Antioxidant 1010 is a dust with high ignition sensitivity and significant thermal decomposition hazards.??It is recommended that T2 Group, Class IIIB explosion-proof electrical equipment be employed for antioxidant 1010 dust where explosion risks exist. |
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