Thermal Decomposition Products of Fiberglass Composites: A Fourier Transform Infrared Analysis
Thermal Decomposition Products of Fiberglass Composites: A Fourier Transform Infrared Analysis
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DOI：
10.1177/073490419701500203
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发表时间：
1997-03
影响因子：
1.9
通讯作者：
K. Kinsella;J. Markham;C. Nelson;T. Burkholder
中科院分区：
文献类型：
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作者：
K. Kinsella;J. Markham;C. Nelson;T. Burkholder
利用傅里叶变换红外光谱技术对建筑用玻璃纤维复合材料的分解产物进行了鉴定。本实验主要研究有毒物质的鉴定和定量。识别在热分解过程中产生的化合物为开发早期火灾探测系统以及评估产品消防安全性能提供了数据。材料的防火性能取决于许多因素。通风、辐射热通量和化学成分是可以模拟的三个因素。在热分解过程中对复合材料进行物理观察，同时对释放出的气体进行识别和量化，为材料开发和消防安全研究人员提供了最先进的材料测试技术。在热解和燃烧过程中，通过FT-IR光谱分析确定了在广泛的复合暴露温度（100至1000°C）范围内的有毒流出物物种。用三聚氰胺、环氧树脂和硅树脂对玻璃纤维复合材料进行了分析。甲醛、甲基苯丙胺、一氧化碳、一氧化氮、甲烷和苯是在分解的物理证据之前通过光谱分析确定的。随着热分解的进行，甲醛、一氧化碳、一氧化氮、氨和氰化氢的毒性浓度被观察到。
Decomposition products of fiberglass composites used in construc tion were identified using Fourier transform infrared (FT-IR) spectroscopy. This bench-scale study concentrated on identification and quantification of toxic species. Identifying compounds evolved during thermal decomposition provides data to develop early fire detection systems as well as evaluate product fire safety performance. Material fire behavior depends on many factors. Ventila tion, radiant heat flux, and chemical composition are three factors that can be modeled. Physical observations of composites during thermal decomposition with simultaneous identification and quantification of evolved gases offer re searchers in both material development and fire safety an advancement in the state-of-the-art for material testing. Gas analysis by FT-IR spectroscopy iden tified toxic effluent species over a wide range of composite exposure tempera tures (100 to 1000 ° C), during pyrolysis and combustion. Fiberglass composites with melamine, epoxy, and silicone resins were profiled. Formaldehyde, meth anol, carbon monoxide, nitric oxide, methane, and benzene were identified by the spectral analysis prior to physical evidence of decomposition. Toxic concen trations of formaldehyde, carbon monoxide, nitric oxide, ammonia, and hydro gen cyanide were observed as thermal decomposition progressed.