环氧树脂的主要成分双酚A的爆炸性,易燃性和热分解,Journal of Loss Prevention in the Process Industries

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环氧树脂的主要成分双酚A的爆炸性,易燃性和热分解,Journal of Loss Prevention in the Process Industries

2024-07-11 02:44| 来源: 网络整理| 查看: 265

双酚A是用于聚碳酸酯和环氧树脂合成的基本化合物之一。在特定情况下,其粉尘会与空气形成爆炸性混合物。因此,这项研究的主要目的是确定该化合物的爆炸特性和可燃性。完整的可燃性要求在火条件下确定双酚A的基本参数,包括放热率,燃烧速度,点燃能力和分解温度。为了建立这些参数,使用了锥形量热仪。在20升球形容器中测试爆炸特性。最小点火能量在MINOR II设备上进行了测试,该设备是改良的Hartman管。为了识别在涉及双酚A的火灾中产生的有害物质,使用了同时进行热分析(结合热重分析和差示扫描量热法)的方法。由热降解获得的物质通过红外光谱仪进行傅立叶变换分析。此外,Purser炉和带质谱的气相色谱的应用有助于鉴定双酚A样品热降解过程中形成的气态物质。

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Explosibility, flammability and the thermal decomposition of Bisphenol A, the main component of epoxy resin

Bisphenol A is one of the basic compounds used in a synthesis of polycarbonates and epoxy resins. Its dust can create an explosive mixture with air under specific circumstances. Therefore, the main goal of this research was to determine explosion characteristics and flammability behaviour of this compound. The complete flammability characteristic requires the determination of the basic parameters of Bisphenol A under fire conditions including Heat Release Rate, speed of combustion, ability to ignite and the temperature of the decomposition range. To establish those parameters, a cone calorimeter was used. The explosion characteristics were tested in a 20-L spherical vessel. Minimum Ignition Energy was tested on MINOR II Apparatus which is a modified Hartman's Tube. In order to identify hazardous substances generated during a fire involving Bisphenol A, a simultaneous thermal analysis that combines thermogravimetry and differential scanning calorimetry was used. The substances obtained from the thermal degradation were analyzed by infrared spectroscope with Fourier transformation. Furthermore, the application of a Purser furnace and gas chromatography with mass spectrometry facilitated the identification of gaseous substances formed during the thermal degradation of Bisphenol A samples.



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